The label doesn't show up until the page is rendered and the page is never rendered until all your code is done processing.
What you need to do is have an intermediate view of the page that the user sees after they press the button to begin processing.
- Create another button on the form (cmdProcess)
- Use the CSS style
display:none; to make cmdProcess invisible. You cannot use the .net
visible property because this will cause the button to not render to the HTML. The button HTML must be in the page's HTML, but you just don't want the user to SEE it.
- Use the
RegisterStartupScript() method to write out a little javascript that call's that hidden button's
click() method.
- Call the startup script from the button handler the user actually clicks.
- Move the code that takes a long time to process to the new button's click handler.
<asp:button runat="server" id="cmdProcess" style="display:none;" />
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim sStartProcess As String
lbl.Text = "Pl wait"
sStartProcess = String.Format("<script language=""JavaScript"">document.getElementById("" {0}"").click();</script>", cmdLaunch.ClientID)
RegisterStartupScript("process",sStartProcess)
End Sub
Private Sub cmdLaunch_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdLaunch.Click
'Here's the code that takes a long time to process
lbl.text="Processed successfully'
Enb Sub
Peter
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Work smarter, not harder.
msg display before starting job
