Web Forms :: Null Reference Exception In Document.getElementById?

Dec 10, 2010

I am getting the Null reference exception in


also when I used the Quickwatch, I get this error message.

getElementById The name 'getElementById' does not exist in the current context

I am also using Master Pages.

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let me see if I can explain this clearly. I have a gridview control
and I am trying to use the Edit function. In my gridview, there are numerous rows. I pick one to change and click Edit. I then see the boss name in my gridview and click "Change". When I click Change, I'm expecting two fields to appear, one is a label, the other is a DropDownList. I get this error when I click:

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protected void LinkButton1_Click(object sender, EventArgs e)
DropDownList DropDownList1 = ((DropDownList)FindControl("DropDownList1"));
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Label3.Visible = true;

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<p> <textarea rows=10 cols=100 name='POST[8]' onfocus='setSelRange(this, 0, 0)'/>How can I use the value of a GET form value as a SelectParameter?

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