Question

whats wrong with this code and i am getting this error:

Compiler Error Message: CS1502: The best overloaded method match for 'RenderName(string, string)' has some invalid arguments

<ItemTemplate>

<asp:Label ID="lblName" Text='<%# RenderName(Eval("Name"), Eval("Value")) %>'  runat="server" />

</ItemTemplate>

public string RenderName(string name, string value)
{
  //do stuffs..
}

Answer 1

If the return type of Eval() is an object (and I suspect it is), that would explain the error you’re seeing. Maybe change your function to:

RenderName(object nameString, object valueString)

Then within the function, check the passed params for null, and either re-cast them to strings, or simply call ToString() on them.

Note: I’m not at a place where I can verify this in my own development environment, so apologies if this approach has a few hiccups.