updating a hidden field from OnClick

[PJ6]

In a page I register a hidden field in the c'tor or OnPreRender like so -

Public Sub New()
Me.RegisterHiddenField("TEST", "")
End Sub

In an inherited control I want to update this hidden field like so -

Protected Overrides Sub OnPreRender(ByVal e As System.EventArgs)
Me.Attributes.Add("onClick", "document.forms[0]." & _
"TEST.value='" & SomeValue & "';document.forms[0].submit();")
MyBase.OnPreRender(e)
End Sub

For some reason, the field isn't being updated. I'm sure it's something
simple... can anyone lend me a clue?

Thanks,
Paul

 

[Guest]

It probably actually IS... but since you are posting back to the server the
control value is being reset again..
Look at the IsPostBack() to exclude it from being reset again.