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with update panel ScriptManager.RegisterStartupScript( is not working

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User1897897189 posted

Dear all,

I am using update panel on my page and want to print a gridview.

If i remove the update panel, the below code is working..

Following is my code

Protected Sub btnPrint_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnPrint.Click
            gvDetails.PagerSettings.Visible = False
            gvDetails.Visible = True
            gvDetails.AllowPaging = False
            gvDetails.DataSource = dt
            gvDetails.DataBind()
            Dim sw As New StringWriter()
            Dim hw As New HtmlTextWriter(sw)
            gvDetails.RenderControl(hw)
            Dim gridHTML As String = sw.ToString().Replace("""", "'").Replace(System.Environment.NewLine, "")
            Dim sb As New StringBuilder()
            sb.Append("<script type = 'text/javascript'>")
            sb.Append("window.onload = new function(){")
            sb.Append("var printWin = window.open('', '', 'left=0")
            sb.Append(",top=0,width=1000,height=600,status=0');")
            sb.Append("printWin.document.write(""")
            sb.Append(gridHTML)
            sb.Append(""");")
            sb.Append("printWin.document.close();")
            sb.Append("printWin.focus();")
            sb.Append("printWin.print();")
            sb.Append("printWin.close();};")
            sb.Append("</script>")
            ScriptManager.RegisterStartupScript(Me, Me.GetType(), "Print", sb.ToString(), True)
            gvDetails.PagerSettings.Visible = True
            gvDetails.DataBind()
            gvDetails.Visible = False
     end sub

its showing me nothing

thanks

nick

Sunday, December 21, 2014 2:38 AM

Answers

User2008642861 posted

Hi nicklibee,

Based on your post, I suppose that you could not achieve your goal because your event could not achieve the correct GridView's ID.

Please add below code into your button click event.

Dim up As UpdatePanel = DirectCast(UpdatePanel1, UpdatePanel)
Dim gv As GridView = DirectCast(up.FindControl("gvDetails"), GridView)

So, you whole event may be below code.

Protected Sub btnPrint_Click(sender As Object, e As EventArgs)
	Dim up As UpdatePanel = DirectCast(UpdatePanel1, UpdatePanel)
	Dim gv As GridView = DirectCast(up.FindControl("gvDetails"), GridView)
	gv.PagerSettings.Visible = False
	gv.Visible = True
	gv.AllowPaging = False
	gv.DataSource = dt
	gv.DataBind()
	Dim sw As New StringWriter()
	Dim hw As New HtmlTextWriter(sw)
	gv.RenderControl(hw)
	Dim gridHTML As String = sw.ToString().Replace("""", "'").Replace(System.Environment.NewLine, "")
	Dim sb As New StringBuilder()
	sb.Append("<script type = 'text/javascript'>")
	sb.Append("window.onload = new function(){")
	sb.Append("var printWin = window.open('', '', 'left=0")
	sb.Append(",top=0,width=1000,height=600,status=0');")
	sb.Append("printWin.document.write(""")
	sb.Append(gridHTML)
	sb.Append(""");")
	sb.Append("printWin.document.close();")
	sb.Append("printWin.focus();")
	sb.Append("printWin.print();")
	sb.Append("printWin.close();};")
	sb.Append("</script>")
	ScriptManager.RegisterStartupScript(Me, Me.[GetType](), "Print", sb.ToString(), True)
	gv.PagerSettings.Visible = True
	gv.DataBind()
	gv.Visible = False
End Sub

Best regards,

Archer Wang

Marked as answer by Anonymous Thursday, October 7, 2021 12:00 AM

Monday, December 22, 2014 3:43 AM

Answered by:

with update panel ScriptManager.RegisterStartupScript( is not working

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