'Declaration
 
Public Function Export( _
   ByVal exportType As ExportTypes, _
   Optional ByVal callback As Action(Of String), _
   Optional ByVal saveAsDialog As Boolean, _
   Optional ByVal settings As Dictionary(Of String,String), _
   Optional ByVal isCancelRequested As Func(Of Boolean) _
) As Task

public Task Export( 
   ExportTypes exportType,
   Action<string> callback,
   bool saveAsDialog,
   Dictionary<string,string> settings,
   Func<bool> isCancelRequested
)

Parameters

exportType

Specifies export format

callback

Function that is invoked once the export result is available (its Url is passed in the callback)

saveAsDialog

Indicates whether the save as dialog should be shown immediately once the export result is ready

settings

The export settings are available for RenderingExtensions

isCancelRequested

The function is periodically called with a check to cancel the export task

Reference

ReportViewer Class
ReportViewer Members