How to handle buton event inside datagrid

Hi All

In Datagrid with the help of template i am able to place a button like this

<asp:TemplateColumn HeaderText="Patient_id">
<ItemTemplate>
<asp:Label id=Label1 runat="server" Text='<%# DataBinder.Eval(Container, "DataItem.Patient_id") %>'>
</asp:Label>
<asp:Button id="Button1" runat="server" Text="Button" OnClick="redir" ></asp:Button>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox id=TextBox1 runat="server" Text='<%# DataBinder.Eval(Container, "DataItem.Patient_id") %>'>
</asp:TextBox>
</EditItemTemplate>
</asp:TemplateColumn>

i added redir in aspx page like this

protected sub redir( sender as object, e as eventargs)

//code

end sub

when i m invoking that with Onclick its generating the error

Invalid postback or callback argument. Event validation is enabled using <pages enableEventValidation="true"/> in configuration or <%@dotnet.itags.org. Page EnableEventValidation="true" %> in a page. For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the postback or callback data for validation.

Help Needed

Thank u

Baba

You cant use event handlers directly like that when handling events of a nested control. The nested control bubbles up its event and you can handle them as shown in this article:

http://blogs.msdn.com/paraga/archive/2005/11/26/497120.aspx

Hope this helps,

Vivek