Adding method causes Compilation Error C# ASP

Question

I am trying to create a webpage, but when i create a button and add a method to it a compilation error occurs, when i remove the method from the button it work fine i tried these steps

tried delete page, and redo it from from beginning
find the error CS1061 online

3.adding method to button with different methods i am exhausted try to find what is the error pls help me!

  Server Error in '/' Application.

    Compilation Error

Description: An error occurred during the compilation of a resource required to service this request. Please review the following specific error details and modify your source code appropriately.

Compiler Error Message: CS1061: 'ASP.usermodification_aspx' does not contain a definition for 'btnModify_Click' and no extension method 'btnModify_Click' accepting a first argument of type 'ASP.usermodification_aspx' could be found (are you missing a using directive or an assembly reference?)

    Source Error:


        Line 38:         SelectCommand="SELECT RoleName FROM aspnet_Roles"></asp:SqlDataSource>
        Line 39:     <br />
        Line 40:     <asp:Button ID="btnModify" runat="server" Text="Modify" 
        Line 41:         onclick="btnModify_Click" />
        Line 42:

namespace RentACar
 {
    public partial class UserModification : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

        }

        protected void btnModify_Click(object sender, EventArgs e)
        {
            GridViewRow row = gvUserRoles.SelectedRow;

            string username = row.Cells[0].Text;
             string role = row.Cells[1].Text;
             Roles.RemoveUserFromRole(username, role);
            string choosenrole = dllUserRoles.SelectedValue.ToString();
            Roles.AddUserToRole(username, choosenrole);

        }
    }
}`

      <%@ Page Title="" Language="C#" MasterPageFile="~/Site.Master" AutoEventWireup="true" CodeBehind="UserModification.aspx.cs" Inherits="RentACar.UserModification" %>
<asp:Content ID="Content3" ContentPlaceHolderID="HeadContent" runat="server">

 <asp:Button ID="btnModify" runat="server" Text="Modify" 
        onclick="btnModify_Click" />

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.Security;

@Rob solution should work, could you post aspx code for button ? from the error it looks fine. — Habib, May 05 '12 at 14:40
please post the code from ASPX ? the top most line, Page tag and Button Tag — Habib, May 05 '12 at 14:46

score 0 · Answer 1 · answered May 05 '12 at 14:35

0

Define the btnModify_Click method.

void btnModify_Click(object sender, EventArgs e){
    // do something.
}

answered May 05 '12 at 14:35

Rob Rodi

3,476
20
19

The error occurs when i define the method :/ i check if its the same name and staff like that but still the same – xArd May 05 '12 at 14:37

score 0 · Accepted Answer · answered May 05 '12 at 15:07

0

Try using CodeFile instead of CodeBehind in page tag. CodeBehind requires the solution to be compiled. There could be something wrong in your code. After using CodeFile attribute in the page tag, put a break point on your button event handler and see if you still get that error.

answered May 05 '12 at 15:07

Habib

219,104
29
407
436

Thanks Thanks Thanks!!!!!!! :) ,what is the difference between CodeBehind and CodeFile? – xArd May 05 '12 at 15:54
@xArd, check out this thread http://stackoverflow.com/questions/73022/codefile-vs-codebehind – Habib May 05 '12 at 18:53

Adding method causes Compilation Error C# ASP

2 Answers2