CS1502: The best overloaded method match for 'System.Web.UI.WebControls.DataControlFi

[r786amesh]

string num;
            string id = string.Empty;
            Button  senderBox = sender as Button ;
            if (senderBox != null)
            {
                id =senderBox.ID;
            }
 
            {
                if (senderBox.ID == "Button0" | senderBox.ID == "Button1" | senderBox.ID == "Button2" | senderBox.ID == "Button3" | senderBox.ID == "Button4" | senderBox.ID == "Button5" | senderBox.ID == "Button6" | senderBox.ID == "Button7" | senderBox.ID == "Button8" | senderBox.ID == "Button9" | senderBox.ID == "Button10")
                {
                    if (senderBox.Enabled == true)
                    {
                        GridView1.Columns[senderBox.CommandArgument].Visible = false;                        
                        senderBox.Enabled = false;
                        num = senderBox.ID.Substring(6);
                        num = num + 11;
                        Session["num"] = "Disabled";
                        Button btn = (Button)FindControl("Button" + num);
                        btn.Enabled = true;
                    }
                }
                else
                {
                    if (senderBox.Enabled == true)
                    {
                        num = senderBox.CommandArgument;
                        num = num - 11;
                        GridView1.Columns[num].Visible = true;
                        BindGrid();
                        senderBox.Enabled = false;
                        Button btn = (Button)FindControl("Button" + num);
                        btn.Enabled = true;
                    }
                }
            }

[Plater]

What line is that error being thrown on, and could you please post the full error name (it got caught off because you tried to use it as a title)

It looks to me that an object is not the type you thought it would be.