I have some Crystal Reports that were created using Crystal (external to Visual Studio) and are now loaded in the VS project. Before the report is previewed I set up the rep
put your coding to load event while bind report don't put ispostback=false condition
example
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Dim dt As New dsPrintRevisionStatus
Try
lblHeader.Text = Request.QueryString("name")
If lblHeader.Text = "Report- Print Revision Status" Then
Dim rpt As New rpt_PrintRevisionStatus
rpt.SetDataSource(sqlHandler.ExecuteDataTable("SELECT * FROM [Print Revision Status]"))
crtViewer.ReportSource = rpt
crtViewer.DataBind()
End If
Catch ex As Exception
lblError.Text = ex.Message
End Try
End Sub