Class ReportViewer

Initializes a new instance of the ReportViewer class.

Declaration

public ReportViewer()

Defines the AllowNavigatingToFileUrls property

Declaration

public static readonly DependencyProperty AllowNavigatingToFileUrlsProperty

Field Value

System.Windows.DependencyProperty

Defines the AutoDisposeModel property

Declaration

public static readonly DependencyProperty AutoDisposeModelProperty

Field Value

System.Windows.DependencyProperty

DependencyProperty for CornerRadius property.

Declaration

public static readonly DependencyProperty CornerRadiusProperty

Field Value

System.Windows.DependencyProperty

Defines the EnableAccessibility property

Declaration

public static readonly DependencyProperty EnableAccessibilityProperty

Field Value

System.Windows.DependencyProperty

Defines the ReportEngineConnection property

Declaration

public static readonly DependencyProperty ReportEngineConnectionProperty

Field Value

System.Windows.DependencyProperty

Defines the ReportSource dependency property.

Declaration

public static readonly DependencyProperty ReportSourceProperty

Field Value

System.Windows.DependencyProperty

Remarks

The property uses TwoWay binding mode by default, hence setting another mode might not update the target.

Defines the SearchMetadataOnDemand property

Declaration

public static readonly DependencyProperty SearchMetadataOnDemandProperty

Field Value

System.Windows.DependencyProperty

Defines the TextResources property.

Declaration

public static readonly DependencyProperty TextResourcesProperty

Field Value

System.Windows.DependencyProperty

Defines the ViewMode property.

Declaration

public static readonly DependencyProperty ViewModeProperty

Field Value

System.Windows.DependencyProperty

Remarks

The property uses TwoWay binding mode by default, hence setting another mode might not update the target.

Defines the ZoomMode property.

Declaration

public static readonly DependencyProperty ZoomModeProperty

Field Value

System.Windows.DependencyProperty

Defines the ZoomPercent property.

Declaration

public static readonly DependencyProperty ZoomPercentProperty

Field Value

System.Windows.DependencyProperty

Gets or sets the accessibility key shortcuts map, used when the report viewer is in accessible mode. Returns null reference if the viewer's accessibility is not enabled.

Declaration

public Dictionary<int, ShortcutKeys> AccessibilityKeyMap { get; set; }

Property Value

System.Collections.Generic.Dictionary<System.Int32, ShortcutKeys>

Gets or sets a value that determines whether the execution of NavigateToURL action that points to a file is allowed.

Declaration

public bool AllowNavigatingToFileUrls { get; set; }

Property Value

System.Boolean

Remarks

If set to false, navigating to local or network file from NavigateToUrl action will be disabled. If set to true, navigating to local or network file from NavigateToUrl action will show a confirmation window before executing the action. Default value: false

Gets or sets a value that indicates if the report viewer model and its resources will be automatically disposed when the window is closed.

Declaration

public bool AutoDisposeModel { get; set; }

Property Value

System.Boolean

The CornerRadius property allows users to control the roundness of the corners independently by setting a radius value for each corner. Radius values that are too large are scaled so that they smoothly blend from corner to corner.

Declaration

public CornerRadius CornerRadius { get; set; }

Property Value

System.Windows.CornerRadius

Gets or sets the current page in the viewer.

Declaration

public int CurrentPage { get; set; }

Property Value

System.Int32

Examples

// Navigate to a desired page
private void NavigateToPage(object sender, System.EventArgs e)
{
    var desiredPage = 5;

    // Check if the viewer can navigate to the page since the report may have fewer pages for example
    if (this.reportViewer1.CanMoveToPage(desiredPage))
    {
        // By setting the property the viewer will automatically navigate to the page in question
        this.reportViewer1.CurrentPage = desiredPage;
    }
}

' Navigate to a desired page
Private Sub NavigateToPage(sender As Object, e As System.EventArgs)
    Dim desiredPage = 5

    ' Check if the viewer can navigate to the page since the report may have fewer pages for example
    If Me.ReportViewer1.CanMoveToPage(desiredPage) Then
        ' By setting the property the viewer will automatically navigate to the page in question
        Me.ReportViewer1.CurrentPage = desiredPage
    End If
End Sub

Gets or sets a value that indicates whether the document map is displayed if any bookmark is defined.

Declaration

public bool DocumentMapVisible { get; set; }

Property Value

System.Boolean

Examples

' Toggle the document map
Private Sub ToggleDocumentMapVisibility(sender As Object, e As System.EventArgs)
    Me.ReportViewer1.DocumentMapVisible = Not Me.ReportViewer1.DocumentMapVisible
End Sub

// Toggle the document map
private void ToggleDocumentMapVisibility(object sender, System.EventArgs e)
{
    this.reportViewer1.DocumentMapVisible = !this.reportViewer1.DocumentMapVisible;
}

Gets or sets a value that indicates whether the accessibility features of the report viewer and its contents should be enabled.

Declaration

public bool EnableAccessibility { get; set; }

Property Value

System.Boolean

Determines if navigate back in report viewer history operation is enabled

Declaration

public bool NavigateBackEnabled { get; }

Property Value

System.Boolean

Examples

' Navigate to the previous report in the history if available
Private Sub NavigateBack(sender As Object, e As System.EventArgs)
    If Me.ReportViewer1.NavigateBackEnabled Then
        Me.ReportViewer1.NavigateBack()
    End If
End Sub

// Navigate to the previous report in the history if available
private void NavigateBack(object sender, System.EventArgs e)
{
    if (this.reportViewer1.NavigateBackEnabled)
    {
        this.reportViewer1.NavigateBack();
    }
}

Determines if navigate forward in report viewer history operation is enabled

Declaration

public bool NavigateForwardEnabled { get; }

Property Value

System.Boolean

Examples

' Navigate to the next report in the history if available
Private Sub NavigateForward(sender As Object, e As System.EventArgs)
    If Me.ReportViewer1.NavigateBackEnabled Then
        Me.ReportViewer1.NavigateBack()
    End If
End Sub

// Navigate to the next report in the history if available
private void NavigateForward(object sender, System.EventArgs e)
{
    if (this.reportViewer1.NavigateForwardEnabled)
    {
        this.reportViewer1.NavigateForward();
    }
}

Gets or sets a value that indicates whether the parameters area is displayed if any parameter editor exists.

Declaration

public bool ParametersAreaVisible { get; set; }

Property Value

System.Boolean

Examples

' Toggle the parameters area
Private Sub ToggleParametersAreaVisibility(sender As Object, e As System.EventArgs)
    Me.ReportViewer1.ParametersAreaVisible = Not Me.ReportViewer1.ParametersAreaVisible
End Sub

// Toggle the parameters area
private void ToggleParametersAreaVisibility(object sender, System.EventArgs e)
{
    this.reportViewer1.ParametersAreaVisible = !this.reportViewer1.ParametersAreaVisible;
}

Gets the available rendering extensions list.

Declaration

public IEnumerable<RenderingExtension> RenderingExtensions { get; }

Property Value

System.Collections.Generic.IEnumerable<RenderingExtension>

The connection string used to configure the reporting engine that will process and render the reports.

Declaration

public string ReportEngineConnection { get; set; }

Property Value

System.String

Remarks

The connection string used to configure the reporting engine that will process and render the reports.

Examples

private void SetEmbeddedReportEngineConnection(object sender, System.EventArgs e)
{
    this.reportViewer1.ReportEngineConnection = new Telerik.ReportViewer.Common.EmbeddedConnectionInfo().ConnectionString;
    //if the ReportEngineConnection property is set to null or empty string, it will use the EmbeddedConnectionInfo by default.
}

Private Sub SetEmbeddedReportEngineConnection(sender As Object, e As System.EventArgs)
    Me.ReportViewer1.ReportEngineConnection = New Telerik.ReportViewer.Common.EmbeddedConnectionInfo().ConnectionString
    'if the ReportEngineConnection property is set to null or empty string, it will use the EmbeddedReportEngineConnectionInfo by default.
End Sub

private void SetReportServerReportEngineConnection(object sender, System.EventArgs e)
{
    this.reportViewer1.ReportEngineConnection = new Telerik.ReportViewer.Common.ReportServerConnectionInfo("http://reportserver:83", "user", "pass").ConnectionString;
}

Private Sub SetReportServerReportEngineConnection(sender As Object, e As System.EventArgs)
    Me.ReportViewer1.ReportEngineConnection = New Telerik.ReportViewer.Common.ReportServerConnectionInfo("http://reportserver:83", "user", "pass").ConnectionString
End Sub

private void SetRestServiceReportEngineConnection(object sender, System.EventArgs e)
{
    this.reportViewer1.ReportEngineConnection = new Telerik.ReportViewer.Common.RestServiceConnectionInfo("http://servicehost:83/api/reports", "authToken").ConnectionString;
}

Private Sub SetRestServiceReportEngineConnection(sender As Object, e As System.EventArgs)
    Me.ReportViewer1.ReportEngineConnection = New Telerik.ReportViewer.Common.RestServiceConnectionInfo("http://servicehost:83/api/reports", "authToken").ConnectionString
End Sub

Gets or sets the ReportSource for the report displayed in the viewer.

Declaration

public ReportSource ReportSource { get; set; }

Property Value

ReportSource

Declaration

public IReportViewerModel ReportViewerModel { get; }

Property Value

IReportViewerModel

Gets or sets a value that indicates whether the search metadata will be delivered on demand or by default.

Declaration

public bool SearchMetadataOnDemand { get; set; }

Property Value

System.Boolean

Gets or sets the tooltips and the messages of the control.

Declaration

public ITextResources TextResources { get; set; }

Property Value

ITextResources

Gets the count of the available pages in the viewer.

Declaration

public int TotalPages { get; }

Property Value

System.Int32

Examples

' Go to the middle of the report
Private Sub GoToMiddle(sender As Object, e As System.EventArgs)
    Dim middlePage = Me.ReportViewer1.TotalPages / 2
    Me.ReportViewer1.CurrentPage = middlePage
End Sub

// Go to the middle of the report
private void GoToMiddle(object sender, System.EventArgs e)
{
    var middlePage = this.reportViewer1.TotalPages / 2;
    this.reportViewer1.CurrentPage = middlePage;
}

Specifies whether the viewer is in interactive or print preview mode.

Declaration

public ViewMode ViewMode { get; set; }

Property Value

ViewMode

Examples

' Switch to interactive mode
Private Sub SwitchToInteractive(sender As Object, e As System.EventArgs)
    Me.ReportViewer1.ViewMode = Telerik.ReportViewer.Wpf.ViewMode.Interactive
End Sub

// Switch to interactive mode
private void SwitchToInteractive(object sender, System.EventArgs e)
{
    this.reportViewer1.ViewMode = Telerik.ReportViewer.Wpf.ViewMode.Interactive;
}

Gets or sets the zoom mode of the control.

Declaration

public ZoomMode ZoomMode { get; set; }

Property Value

ZoomMode

Examples

' Set the zoom mode to PageWidth
Private Sub ChangeZoomMode(sender As Object, e As System.EventArgs)
    Me.ReportViewer1.ZoomMode = Telerik.ReportViewer.Wpf.ZoomMode.PageWidth
End Sub

// Set the zoom mode to PageWidth
private void ChangeZoomMode(object sender, System.EventArgs e)
{
    this.reportViewer1.ZoomMode = Telerik.ReportViewer.Wpf.ZoomMode.PageWidth;
}

Gets or sets the zoom percentage to use when displaying the report.

Declaration

public int ZoomPercent { get; set; }

Property Value

System.Int32

Examples

' Set the zoom percent to a specific value
Private Sub ChangeZoomPercent(sender As Object, e As System.EventArgs)
    Me.ReportViewer1.ZoomMode = Telerik.ReportViewer.Wpf.ZoomMode.Percent
    Me.ReportViewer1.ZoomPercent = 140
End Sub

// Set the zoom percent to a specific value
private void ChangeZoomPercent(object sender, System.EventArgs e)
{
    this.reportViewer1.ZoomMode = Telerik.ReportViewer.Wpf.ZoomMode.Percent;
    this.reportViewer1.ZoomPercent = 140;
}

Stops the background processing of the report.

Declaration

public void CancelRendering()

Examples

// Stop rendering the report.
private void CancelRendering(object sender, System.EventArgs e)
{
    this.reportViewer1.CancelRendering();
}

' Stop rendering the report.
Private Sub CancelRendering(sender As Object, e As System.EventArgs)
    Me.ReportViewer1.CancelRendering()
End Sub

Stops background processing of the report.

Declaration

[Obsolete("CancelRendering(int timeout) method is now obsolete. Please use the Telerik.ReportViewer.Wpf.ReportViewer.CancelRendering() method instead.")]
public bool CancelRendering(int timeout)

Parameters

System.Int32 timeout

The number of milliseconds to wait for the background rendering to terminate. A value of -1 waits forever. A value of 0 returns immediately without waiting for the rendering to terminate.

Returns

System.Boolean

A Boolean value. A value of true is returned if the background rendering has terminated. A value of false is returned if background rendering has not terminated after the amount of time specified in the millisecondsTimeout parameter has elapsed, or if the millisecondsTimeout parameter was set to 0.

Determines whether the viewer can be navigated to a specified page.

Declaration

public bool CanMoveToPage(int pageIndex)

Parameters

System.Int32 pageIndex

The page number to determine navigation possibility.

Returns

System.Boolean

Returns true if the viewer can be moved to the specified page.

Examples

// Navigate to a desired page
private void NavigateToPage(object sender, System.EventArgs e)
{
    var desiredPage = 5;

    // Check if the viewer can navigate to the page since the report may have fewer pages for example
    if (this.reportViewer1.CanMoveToPage(desiredPage))
    {
        // By setting the property the viewer will automatically navigate to the page in question
        this.reportViewer1.CurrentPage = desiredPage;
    }
}

' Navigate to a desired page
Private Sub NavigateToPage(sender As Object, e As System.EventArgs)
    Dim desiredPage = 5

    ' Check if the viewer can navigate to the page since the report may have fewer pages for example
    If Me.ReportViewer1.CanMoveToPage(desiredPage) Then
        ' By setting the property the viewer will automatically navigate to the page in question
        Me.ReportViewer1.CurrentPage = desiredPage
    End If
End Sub

Clears the report viewer navigation history.

Declaration

public void ClearHistory()

Disposes the model and detaches its event handlers.

Declaration

public virtual void DisposeModel()

Detaches the event handlers from the owner window. Disposes the model and detaches its event handlers.

Declaration

public virtual void DisposeViewerResources()

Detaches the event handlers from the owner window. Disposes the model and detaches its event handlers.

Declaration

public virtual void DisposeViewerResources(object ownerWindow)

Parameters

System.Object ownerWindow

The owner window of the ReportViewer instance.

Exports the report in the specified format.

Declaration

public void ExportReport(string format, Hashtable deviceInfo)

Parameters

System.String format

Export format

System.Collections.Hashtable deviceInfo

Contains parameters to pass to the rendering extension.

Examples

// Opens the dialog to export the report
private void ExportReport(object sender, System.EventArgs e)
{
    this.reportViewer1.ExportReport("PDF", null);
}

' Opens the dialog to export the report
Private Sub ExportReport(sender As Object, e As System.EventArgs)
    Me.ReportViewer1.ExportReport("PDF", Nothing)
End Sub

Instantiates and initializes the report viewer model.

Declaration

public void InitializeModel()

Navigates the viewer back one step in the navigation history.

Declaration

public void NavigateBack()

Remarks

Check NavigateBackEnabled if this operation is enabled. If not, exception is thrown.
The ReportSource property will reflect the change in the currently shown report.

Examples

// Navigate to the previous report in the history if available
private void NavigateBack(object sender, System.EventArgs e)
{
    if (this.reportViewer1.NavigateBackEnabled)
    {
        this.reportViewer1.NavigateBack();
    }
}

' Navigate to the previous report in the history if available
Private Sub NavigateBack(sender As Object, e As System.EventArgs)
    If Me.ReportViewer1.NavigateBackEnabled Then
        Me.ReportViewer1.NavigateBack()
    End If
End Sub

Navigates the viewer forward one step in the navigation history.

Declaration

public void NavigateForward()

Remarks

Check NavigateForwardEnabled if this operation is enabled. If not, exception is thrown.
The ReportSource property will reflect the change in the currently shown report.

Examples

// Navigate to the next report in the history if available
private void NavigateForward(object sender, System.EventArgs e)
{
    if (this.reportViewer1.NavigateForwardEnabled)
    {
        this.reportViewer1.NavigateForward();
    }
}

' Navigate to the next report in the history if available
Private Sub NavigateForward(sender As Object, e As System.EventArgs)
    If Me.ReportViewer1.NavigateBackEnabled Then
        Me.ReportViewer1.NavigateBack()
    End If
End Sub

Declaration

public override void OnApplyTemplate()

Raises the Error event.

Declaration

protected virtual void OnError(ErrorEventArgs e)

Parameters

ErrorEventArgs e

An ErrorEventArgs object that contains the event data.

Remarks

When overridden, make sure you call the base method implementation.

Raises the ExportBegin event.

Declaration

protected virtual void OnExportBegin(ExportBeginEventArgs e)

Parameters

ExportBeginEventArgs e

An ExportBeginEventArgs object that contains the event data.

Remarks

When overridden, make sure you call the base method implementation.

Raises the ExportEnd event.

Declaration

protected virtual void OnExportEnd(ExportEndEventArgs e)

Parameters

ExportEndEventArgs e

An ExportEndEventArgs object that contains the event data.

Remarks

When overridden, make sure you call the base method implementation.

Raises the InteractiveActionEnter event.

Declaration

protected virtual void OnInteractiveActionEnter(InteractiveActionEventArgs e)

Parameters

InteractiveActionEventArgs e

A InteractiveActionEventArgs object that contains the event data.

Remarks

When overridden, make sure you call the base method implementation.

Raises the InteractiveActionExecuting event.

Declaration

protected virtual void OnInteractiveActionExecuting(InteractiveActionCancelEventArgs e)

Parameters

InteractiveActionCancelEventArgs e

A InteractiveActionCancelEventArgs object that contains the event data.

Remarks

When overridden, make sure you call the base method implementation.

Raises the InteractiveActionLeave event.

Declaration

protected virtual void OnInteractiveActionLeave(InteractiveActionEventArgs e)

Parameters

InteractiveActionEventArgs e

A InteractiveActionEventArgs object that contains the event data.

Remarks

When overridden, make sure you call the base method implementation.

Raises the PrintBegin event.

Declaration

[Obsolete("This overload is now obsolete. Please use Telerik.ReportViewer.Wpf.ReportViewer.OnPrintBegin(PrintBeginEventArgs) instead.")]
protected virtual void OnPrintBegin(CancelEventArgs e)

Parameters

System.ComponentModel.CancelEventArgs e

An System.ComponentModel.CancelEventArgs object that contains the event data.

Remarks

When overridden, make sure you call the base method implementation.

Raises the PrintBegin event.

Declaration

protected virtual void OnPrintBegin(PrintBeginEventArgs e)

Parameters

PrintBeginEventArgs e

An System.ComponentModel.CancelEventArgs object that contains the event data.

Remarks

When overridden, make sure you call the base method implementation.

Raises the PrintEnd event.

Declaration

[Obsolete("This overload is now obsolete. Please use Telerik.ReportViewer.Wpf.ReportViewer.OnPrintEnd(PrintEndEventArgs) instead.")]
protected virtual void OnPrintEnd(EventArgs e)

Parameters

System.EventArgs e

An System.EventArgs object that contains the event data.

Remarks

When overridden, make sure you call the base method implementation.

Raises the PrintEnd event.

Declaration

protected virtual void OnPrintEnd(PrintEndEventArgs e)

Parameters

PrintEndEventArgs e

An System.EventArgs object that contains the event data.

Remarks

When overridden, make sure you call the base method implementation.

Declaration

protected override void OnPropertyChanged(DependencyPropertyChangedEventArgs e)

Parameters

System.Windows.DependencyPropertyChangedEventArgs e

Raises the RenderingBegin event.

Declaration

[Obsolete("This overload is now obsolete. Please use Telerik.ReportViewer.Wpf.ReportViewer.OnRenderingBegin(RenderingBeginEventArgs) instead.")]
protected virtual void OnRenderingBegin(CancelEventArgs e)

Parameters

System.ComponentModel.CancelEventArgs e

An System.ComponentModel.CancelEventArgs object that contains the event data.

Remarks

When overridden, make sure you call the base method implementation.

Raises the RenderingBegin event.

Declaration

protected virtual void OnRenderingBegin(RenderingBeginEventArgs e)

Parameters

RenderingBeginEventArgs e

An System.ComponentModel.CancelEventArgs object that contains the event data.

Remarks

When overridden, make sure you call the base method implementation.

Raises the RenderingEnd event.

Declaration

[Obsolete("This overload is now obsolete. Please use Telerik.ReportViewer.Wpf.ReportViewer.OnRenderingEnd(RenderingEndEventArgs) instead.")]
protected virtual void OnRenderingEnd(EventArgs e)

Parameters

System.EventArgs e

An System.EventArgs object that contains the event data.

Remarks

When overridden, make sure you call the base method implementation.

Raises the RenderingEnd event.

Declaration

protected virtual void OnRenderingEnd(RenderingEndEventArgs e)

Parameters

RenderingEndEventArgs e

An System.EventArgs object that contains the event data.

Remarks

When overridden, make sure you call the base method implementation.

Occurs when the tooltip, associated with a report item, is being shown

Declaration

protected virtual void OnToolTipOpening(ToolTipOpeningEventArgs e)

Parameters

ToolTipOpeningEventArgs e

Raises the UpdateUI event.

Declaration

protected virtual void OnUpdateUI(EventArgs e)

Parameters

System.EventArgs e

An System.EventArgs object that contains the event data.

Remarks

When overridden, make sure you call the base method implementation.

Opens the print dialog for the report

Declaration

public void PrintReport()

Examples

// Opens the dialog to print the report
private void PrintReport(object sender, System.EventArgs e)
{
    this.reportViewer1.PrintReport();
}

' Opens the dialog to print the report
Private Sub PrintReport(sender As Object, e As System.EventArgs)
    Me.ReportViewer1.PrintReport()
End Sub

Refreshes the current report in the viewer. Last used parameter values are used.

Declaration

[Obsolete("RefreshData method is now obsolete. Please use RefreshReport instead.")]
public void RefreshData()

Refreshes the current report in the viewer. Last used parameter values are used.

Declaration

public void RefreshReport()

Examples

// Refresh the report with the current parameters
private void RefreshReport(object sender, System.EventArgs e)
{
    this.reportViewer1.RefreshReport();
}

' Refresh the report with the current parameters
Private Sub RefreshReport(sender As Object, e As System.EventArgs)
    Me.ReportViewer1.RefreshReport()
End Sub

Opens the page setup dialog for the report

Declaration

public void ShowPageSetupDialog()

Examples

// Opens the page setup dialog for the report
private void ShowPageSetup(object sender, System.EventArgs e)
{
    this.reportViewer1.ShowPageSetupDialog();
}

' Opens the dialog to print the report
Private Sub ShowPageSetup(sender As Object, e As System.EventArgs)
    Me.ReportViewer1.ShowPageSetupDialog()
End Sub

Toggles the search dialog to search within the document. If the search metadata is not prepared, invokes report refresh to generate the search metadata and then opens the dialog.

Declaration

public void ToggleReportContentSearch()

Occurs when there is an error in the report viewer control.

Declaration

public event ErrorEventHandler Error

Event Type

ErrorEventHandler

Examples

This example illustrates how to wire the Error event and use the event arguments to check the exception.

void reportViewer1_Error(object sender, Telerik.Reporting.ErrorEventArgs args)
{
    if (args.Exception is System.Exception) // check for a specific exception
    {
        var message = args.Exception.Message;
        // do something with the message and/or the
    }
}

Private Sub reportViewer1_Error(sender As Object, args As Telerik.Reporting.ErrorEventArgs)
    If TypeOf args.Exception Is System.Exception Then
        ' check for a specific exception
        ' do something with the message and/or the
        Dim message = args.Exception.Message
    End If
End Sub

Occurs when the report in the viewer control starts exporting.

Declaration

public event ExportBeginEventHandler ExportBegin

Event Type

ExportBeginEventHandler

Examples

This example illustrates how to wire the ExportBegin event, cancel it if needed and perform some logic based on the export format.

void reportViewer1_ExportBegin(object sender, Telerik.ReportViewer.Common.ExportBeginEventArgs args)
{
    if (true) // some logic here
    {
        // Cancel is false by default
        args.Cancel = true;
    }

    switch (args.Format)
    {
        case "Excel":
            // do something
            break;
        case "PDF":
            // do something
            break;
    }
}

Private Sub reportViewer1_ExportBegin(sender As Object, args As Telerik.ReportViewer.Common.ExportBeginEventArgs)
    If True Then
        ' some logic here
        ' Cancel is false by default
        args.Cancel = True
    End If

    Select Case args.Format
        Case "Excel"
            ' do something
            Exit Select
        Case "PDF"
            ' do something
            Exit Select
    End Select
End Sub

Occurs when the report exporting in the viewer control is finished.

Declaration

public event ExportEndEventHandler ExportEnd

Event Type

ExportEndEventHandler

Examples

This example illustrates how to wire the ExportEnd event.

void reportViewer1_ExportEnd(object sender, Telerik.ReportViewer.Common.ExportEndEventArgs args)
{
    if (null != args.Exception)
    {
        //some logic if report processing is not successful
    }
    else
    {
        //suppress the viewer SaveFileDialog and use your own
        args.Handled = true;
        var fileName = args.DocumentName;
        var extension = args.DocumentExtension;
        var filter = string.Format("{0} (*.{1})|*.{1}|All Files (*.*)|*.*",
                                    fileName,
                                    extension);

        var saveFileDlg = new Microsoft.Win32.SaveFileDialog
        {
            Filter = filter,
            FileName = fileName + "." + extension,
        };

        if (saveFileDlg.ShowDialog() == true)
        {
            try
            {
                using (var fs = new FileStream(saveFileDlg.FileName, FileMode.Create))
                {
                    fs.Write(args.DocumentBytes, 0, args.DocumentBytes.Length);
                }

                //Optionally open the file
                if (!string.IsNullOrEmpty(saveFileDlg.FileName))
                {
                    System.Diagnostics.Process.Start(saveFileDlg.FileName);
                }
            }
            catch (Exception)
            {
                //Handle exception
            }
        }
    }
}

Private Sub reportViewer1_ExportEnd(sender As Object, args As Telerik.ReportViewer.Common.ExportEndEventArgs)
    'some logic if report processing is not successful
    If args.Exception IsNot Nothing Then
    Else
        'suppress the viewer SaveFileDialog and use your own
        args.Handled = True
        Dim fileName = args.DocumentName
        Dim extension = args.DocumentExtension
        Dim filter = String.Format("{0} (*.{1})|*.{1}|All Files (*.*)|*.*", fileName, extension)

        Dim saveFileDlg = New Microsoft.Win32.SaveFileDialog() With { _
            .Filter = filter, _
            .FileName = fileName + "." + extension _
        }

        If saveFileDlg.ShowDialog() = True Then
            Try
                Using fs = New FileStream(saveFileDlg.FileName, FileMode.Create)
                    fs.Write(args.DocumentBytes, 0, args.DocumentBytes.Length)
                End Using

                'Optionally open the file
                If Not String.IsNullOrEmpty(saveFileDlg.FileName) Then
                    System.Diagnostics.Process.Start(saveFileDlg.FileName)
                End If
                'Handle exception
            Catch generatedExceptionName As Exception
            End Try
        End If
    End If
End Sub

Occurs when the mouse cursor enters the area of a report item's action.

Declaration

public event InteractiveActionEnterEventHandler InteractiveActionEnter

Event Type

InteractiveActionEnterEventHandler

Examples

This example illustrates how to wire the event and use the event arguments

void reportViewer1_InteractiveActionEnter(object sender, Telerik.ReportViewer.Wpf.InteractiveActionEventArgs args)
{
    var strB = new System.Text.StringBuilder();
    strB.AppendLine("You have just entered an action area.");
    strB.AppendLine("Action type: " + args.Action.GetType().Name);
    strB.AppendLine("ReportItem name: " + args.Action.ReportItemName);
    strB.AppendLine(string.Format("Mouse cursor position: {0}; Item bounds: {1}", args.CursorPos, args.Bounds));

    Console.Out.WriteLine(strB.ToString());
}

' Handles the InteractiveActionEnter event
Private Sub reportViewer1_InteractiveActionEnter(sender As Object, args As Telerik.ReportViewer.Wpf.InteractiveActionEventArgs) Handles ReportViewer1.InteractiveActionEnter

    Dim strB = New System.Text.StringBuilder()
    strB.AppendLine("You have just entered an action area.")
    strB.AppendLine("Action type: " + args.Action.[GetType]().Name)
    strB.AppendLine("ReportItem name: " + args.Action.ReportItemName)
    strB.AppendLine(String.Format("Mouse cursor position: {0}; Item bounds: {1}", args.CursorPos, args.Bounds))

    Console.Out.WriteLine(strB.ToString())
End Sub

Occurs when an action is being executed. Execution can be canceled.

Declaration

public event InteractiveActionExecutingEventHandler InteractiveActionExecuting

Event Type

InteractiveActionExecutingEventHandler

Examples

This example illustrates how to wire the event and use the event arguments.

void reportViewer1_CustomInteractiveActionExecuting(object sender, Telerik.ReportViewer.Wpf.InteractiveActionCancelEventArgs args)
{
    var strB = new System.Text.StringBuilder();
    strB.AppendLine("ReportItem name: " + args.Action.ReportItemName);

    var customAction = args.Action as Telerik.Reporting.Processing.CustomAction;
    if (null != customAction)
    {
        foreach (var p in customAction.Parameters)
        {
            strB.AppendLine(string.Format("Parameter \"{0}\" value: {1}", p.Key, p.Value));
        }
    }

    strB.AppendLine(string.Format("Mouse cursor position: {0}; Item bounds: {1}", args.CursorPos, args.Bounds));

    MessageBox.Show(strB.ToString());
}

void reportViewer1_InteractiveActionExecuting(object sender, Telerik.ReportViewer.Wpf.InteractiveActionCancelEventArgs args)
{
    var navigateToUrlAction = args.Action as Telerik.Reporting.Processing.NavigateToUrlAction;
    if (null != navigateToUrlAction)
    {
        if (!navigateToUrlAction.Url.StartsWith("https"))
        {
            args.Cancel = MessageBox.Show("You are about to navigate to a non-secure page. Continue?", "Warning", MessageBoxButton.YesNo, MessageBoxImage.Warning) != MessageBoxResult.Yes;
        }
    }
}

' Handles the InteractiveActionExecuting event
Private Sub reportViewer1_CustomInteractiveActionExecuting(sender As Object, args As Telerik.ReportViewer.Wpf.InteractiveActionCancelEventArgs) Handles ReportViewer1.InteractiveActionExecuting

    Dim strB = New System.Text.StringBuilder()
    strB.AppendLine("ReportItem name: " + args.Action.ReportItemName)

    Dim customAction = TryCast(args.Action, Telerik.Reporting.Processing.CustomAction)
    If customAction IsNot Nothing Then
        For Each p As KeyValuePair(Of String, Object) In customAction.Parameters
            strB.AppendLine(String.Format("Parameter ""{0}"" value: {1}", p.Key, p.Value))
        Next
    End If

    strB.AppendLine(String.Format("Mouse cursor position: {0}; Item bounds: {1}", args.CursorPos, args.Bounds))

    MessageBox.Show(strB.ToString())
End Sub

' Handles the InteractiveActionExecuting event
Private Sub reportViewer1_InteractiveActionExecuting(sender As Object, args As Telerik.ReportViewer.Wpf.InteractiveActionCancelEventArgs) Handles ReportViewer1.InteractiveActionExecuting

    Dim navigateToUrlAction = TryCast(args.Action, Telerik.Reporting.Processing.NavigateToUrlAction)
    If navigateToUrlAction IsNot Nothing Then
        If Not navigateToUrlAction.Url.StartsWith("https") Then
            args.Cancel = MessageBox.Show("You are about to navigate to a non-secure page. Continue?", "Warning", MessageBoxButton.YesNo, MessageBoxImage.Warning) <> MessageBoxResult.Yes
        End If
    End If
End Sub

Occurs when the mouse cursor leaves the area of a report item's action.

Declaration

public event InteractiveActionLeaveEventHandler InteractiveActionLeave

Event Type

InteractiveActionLeaveEventHandler

Examples

This example illustrates how to wire the event and use the event arguments

void reportViewer1_InteractiveActionLeave(object sender, Telerik.ReportViewer.Wpf.InteractiveActionEventArgs args)
{
    var strB = new System.Text.StringBuilder();
    strB.AppendLine("You have just left an action area.");
    strB.AppendLine("Action type: " + args.Action.GetType().Name);
    strB.AppendLine("ReportItem name: " + args.Action.ReportItemName);
    strB.AppendLine(string.Format("Item bounds: {0}", args.Bounds));

    Console.Out.WriteLine(strB.ToString());
}

' Handles the InteractiveActionLeave event
Private Sub reportViewer1_InteractiveActionLeave(sender As Object, args As Telerik.ReportViewer.Wpf.InteractiveActionEventArgs) Handles ReportViewer1.InteractiveActionLeave

    Dim strB = New System.Text.StringBuilder()
    strB.AppendLine("You have just left an action area.")
    strB.AppendLine("Action type: " + args.Action.[GetType]().Name)
    strB.AppendLine("ReportItem name: " + args.Action.ReportItemName)
    strB.AppendLine(String.Format("Item bounds: {0}", args.Bounds))

    Console.Out.WriteLine(strB.ToString())
End Sub

Occurs when the report in the viewer control starts printing.

Declaration

public event PrintBeginEventHandler PrintBegin

Event Type

PrintBeginEventHandler

Examples

This example illustrates how to wire the PrintBegin event and how to cancel it if needed.

void reportViewer1_PrintBegin(object sender, Telerik.ReportViewer.Common.PrintBeginEventArgs e)
{
    if (true) // some logic here
    {
        // Cancel is false by default
        e.Cancel = true;
    }

    //To prevent the Print Dialog from appearing, you should specify valid printer settings to this method.
    if (true)
    {
        // Obtain the settings of the default printer
        e.PrinterSettings = new System.Drawing.Printing.PrinterSettings();

        // To suppress the Print dialogs. The standard print controller comes with no UI
        e.PrintController = new System.Drawing.Printing.StandardPrintController();
    }
}

Private Sub reportViewer1_PrintBegin(sender As Object, e As Telerik.ReportViewer.Common.PrintBeginEventArgs)
    If True Then
        ' some logic here
        ' Cancel is false by default
        e.Cancel = True
    End If

    ' To prevent the Print Dialog from appearing, you should specify valid printer settings to this method.
    If True Then
        ' Obtain the settings of the default printer
        e.PrinterSettings = New System.Drawing.Printing.PrinterSettings()

        ' To suppress the Print dialogs. The standard print controller comes with no UI
        e.PrintController = New System.Drawing.Printing.StandardPrintController()
    End If
End Sub

Occurs when the report printing in the viewer control is finished.

Declaration

public event PrintEndEventHandler PrintEnd

Event Type

PrintEndEventHandler

Examples

This example illustrates how to wire the PrintEnd event.

void reportViewer1_PrintEnd(object sender, Telerik.ReportViewer.Common.PrintEndEventArgs e)
{
    // suitable for logging and triggering other actions
}

Private Sub reportViewer1_PrintEnd(sender As Object, e As Telerik.ReportViewer.Common.PrintEndEventArgs)
    ' suitable for logging and triggering other actions
End Sub

Occurs when the report in the viewer control starts rendering.

Declaration

public event RenderingBeginEventHandler RenderingBegin

Event Type

RenderingBeginEventHandler

Examples

This example illustrates how to wire the RenderingBegin event and how to cancel it if needed.

void reportViewer1_RenderingBegin(object sender, Telerik.ReportViewer.Common.RenderingBeginEventArgs e)
{
    if (true) // some logic here
    {
        // Cancel is false by default
        e.Cancel = true;
    }
}

Private Sub reportViewer1_RenderingBegin(sender As Object, e As Telerik.ReportViewer.Common.RenderingBeginEventArgs)
    If True Then
        ' some logic here
        ' Cancel is false by default
        e.Cancel = True
    End If
End Sub

Occurs when the report rendering in the viewer control is finished.

Declaration

public event RenderingEndEventHandler RenderingEnd

Event Type

RenderingEndEventHandler

Examples

This example illustrates how to wire the RenderingEnd event.

void reportViewer1_RenderingEnd(object sender, Telerik.ReportViewer.Common.RenderingEndEventArgs e)
{
    // suitable for logging and triggering other actions
}

Private Sub reportViewer1_RenderingEnd(sender As Object, e As Telerik.ReportViewer.Common.RenderingEndEventArgs)
    ' suitable for logging and triggering other actions
End Sub

Occurs when the UI of the report viewer control is updated.

Declaration

public event EventHandler UpdateUI

Event Type

System.EventHandler

Examples

This example illustrates how to wire the UpdateUI event.

void reportViewer1_UpdateUI(object sender, System.EventArgs e)
{
    // invoked whenever the viewer state is changed
}

Private Sub reportViewer1_UpdateUI(sender As Object, e As System.EventArgs)
    ' invoked whenever the viewer state is changed
End Sub

Occurs when the tooltip, associated with a report item, is being opened

Declaration

public event ToolTipOpeningEventHandler ViewerToolTipOpening

Event Type

ToolTipOpeningEventHandler

Examples

This example illustrates how to wire the event, cancel tooltip showing and change tooltip's title and text.

private void reportViewer1_ViewerToolTipOpening(object sender, Telerik.ReportViewer.Wpf.ToolTipOpeningEventArgs args)
{
    if (args.ToolTip.Title.Contains("DoNotShow"))
    {
        args.Cancel = true;
    }
    else
    {
        args.ToolTip.Title = "The tooltip title is changed!";
        args.ToolTip.Text += " (changed)";
    }
}

' Handles the InteractiveActionLeave event
Private Sub reportViewer1_ViewerToolTipOpening(sender As Object, args As Telerik.ReportViewer.Wpf.ToolTipOpeningEventArgs) Handles ReportViewer1.ViewerToolTipOpening
    If args.ToolTip.Title.Contains("DoNotShow") Then
        args.Cancel = True
    Else
        args.ToolTip.Title = "The tooltip title is changed!"
        args.ToolTip.Text += " (changed)"
    End If
End Sub

Inheritance

Namespace: Telerik.ReportViewer.Wpf

Assembly: Telerik.ReportViewer.Wpf.dll

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