Passing multiple arguments in c#

.aspx page ,

"<asp:imagebutton com="" commandargument="&lt;%#Eval(&quot;ERROR_FILE1&quot;) + &quot;,&quot;+Eval(&quot;ERROR_FILE2&quot;)+&quot;,&quot;+Eval(&quot;ERROR_FILE3&quot;)%&gt;" commandname="&lt;%# Eval(&quot;ERROR_ID&quot;) %&gt;" id="ImgB_DELETE" imageurl="../images/Manager/trash.png" onclientclick="return confirm('Are you sure you want to delete this Error Report?')" oncommand="Delete" runat="server"></asp:imagebutton>"

.cs page

 string[] Argument = e.CommandArgument.ToString().Split(new char[] { ',' });
        string File1 = Argument[0].ToString();
        string File2 = Argument[1].ToString();
        string File3 = Argument[2].ToString();