Pass ASP:LinkButton CommandArgument to __doPostBack __EVENTARGUMENT

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In ASP.NET linkbutton -

<asp:TemplateField HeaderText="Delete" SortExpression="" Visible="True"> 
    <ItemTemplate>
       <asp:LinkButton ID="btnDelete" CommandName="Delete" runat="server" CommandArgument='<%# Eval("ID") %>' Text="Delete"/>
    </ItemTemplate>

</asp:TemplateField>

Will __doPostBack function always be generated? If so, how can I overwrite it and manually pass the CommandArgument to __EVENTARGUMENT? By default __EVENTARGUMENT seems to be empty.

Thanks

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Mateus Schneiders On BEST ANSWER

The CommandArgument, as well as the CommandName are not sent from the client side to the server. They are Stored on the LinkButton's Viewstate and retrieved on the server side. In this case, the __EVENTARGUMENT Form Key will be empty.

You should be able to access the CommandArgument on the OnRowCommand event of the GridView