Ambiguous match found

Hi,

The "Ambiguous match found" error is the most annoying error I faced ever. This can occur when more than one component in the the aspx/ascx file have same name.

For example, here's what I have in default.aspx page.

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="WebApplication._Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
         <asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
    </form>
</body>
</html>

And Here's my code in default.aspx.cs.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Globalization;
using System.Text;
using System.Data;
using System.Drawing;

namespace WebApplication
{
    public partial class _Default : System.Web.UI.Page
    {
        string label1 = string.Empty;
        protected void Page_Load(object sender, EventArgs e)
        {
           
        }
    }
}

In this case, though the code compiles, we get a run time error saying that "Ambiguous match found". This is because we have a label called "Label1" and a string in .cs file with name "label1".

So, next time you get this issue, make sure that all elements in your solution have unique ID's :)

Happy Coding !!!

My Thoughts on SharePoint

Thursday, March 1, 2012

Ambiguous match found

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