Visual Studio can't see Codes
<p>I have a strange issue. 
After I publish my project and got back to solution again I found out my code dosent' work and when I get on code of some buttons I found methods like that. </p>

<pre><code> private void btnSave_Click_1(object sender, EventArgs e)
        {
//empty area  and there is same method without number 1 But it have my code 
                  }


 private void btnSave_Click(object sender, EventArgs e)
        {
//my code 
                  }
</code></pre>

<p>first: why does it happen ?
Second  : how can i solve it without copy and past ?</p>