Forms Data Controls :: Gridview Update Not Working / Giving Null Object Reference Error?

Jan 14, 2010

I have a gridview,when i do it is giving me null object reference error.

I am posting my code for your reference -


My gridview code is -


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let me see if I can explain this clearly. I have a gridview control
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System.NullReferenceException was unhandled by user code
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Gridview HTML:

<asp:TemplateField HeaderText="Director">
<asp:Label ID="Label1" runat="server" Text='<%# Bind("director") %>'></asp:Label>
<asp:LinkButton ID="LinkButton1" runat="server" OnClick="LinkButton1_Click">Change</asp:LinkButton>
<asp:Label ID="Label4" runat="server" Text="Director" Visible="False"></asp:Label>
<asp:DropDownList ID="DropDownList2" runat="server" DataSourceID="trDirector"
DataTextField="name" DataValueField="id" onselectedindexchanged="DropDownList2_SelectedIndexChanged"
<asp:Label ID="Label1" runat="server" Text='<%# Bind("director") %>'></asp:Label>

Code Behind:

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

I figure I must be overlooking something so I'm asking what am I missing?

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[Code] ...

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Can Handle Null Value In Linq / Object Reference Not Set To An Instance Of An Object

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