error in this below code any one solve plz

Question

1.00/5 (1 vote)

See more:

Error:ASP.default2; does not contain a definition for gv_SelectedIndexChanged; and no extension method gv_SelectedIndexChanged accepting a first argument of type ASP.default2_aspx could be found (are you missing a using directive or an assembly reference?)

this is my aspx code....

XML

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default2.aspx.cs" Inherits="Default2" %>

<!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">
    <div>

    <asp:GridView runat="server" ID="gv" AutoGenerateColumns="False"
          onrowdatabound="gv_RowDataBound" CellPadding="4" ForeColor="#333333"
            GridLines="None" onselectedindexchanged="gv_SelectedIndexChanged" Width="188px">
          <AlternatingRowStyle BackColor="White" />
          <Columns>
              <asp:TemplateField>
                  <HeaderTemplate>
                      <asp:Label runat="server" ID="header" Text="Month"></asp:Label>
                  </HeaderTemplate>
                  <ItemTemplate>
                      <asp:Label runat="server" ID="lblMonth" Text='<%#Eval("Month")%>'></asp:Label>
                  </ItemTemplate>
              </asp:TemplateField>
              <asp:TemplateField>
                  <HeaderTemplate>
                      <asp:Label runat="server" ID="Day"></asp:Label>
                  </HeaderTemplate>
                  <ItemTemplate>
                      <asp:DropDownList runat="server" ID="drpDay" >
                      </asp:DropDownList>
                  </ItemTemplate>
              </asp:TemplateField>
          </Columns>
          <EditRowStyle BackColor="#2461BF" />
          <FooterStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
          <HeaderStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
          <PagerStyle BackColor="#2461BF" ForeColor="White" HorizontalAlign="Center" />
          <RowStyle BackColor="#EFF3FB" />
          <SelectedRowStyle BackColor="#D1DDF1" Font-Bold="True" ForeColor="#333333" />
          <SortedAscendingCellStyle BackColor="#F5F7FB" />
          <SortedAscendingHeaderStyle BackColor="#6D95E1" />
          <SortedDescendingCellStyle BackColor="#E9EBEF" />
          <SortedDescendingHeaderStyle BackColor="#4870BE" />
      </asp:GridView></div>
    </form>
</body>
</html>

this is my aspx.cs code....

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

public partial class Default2 : System.Web.UI.Page
{
    public DataTable dtDay = new DataTable();
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!Page.IsPostBack)
        {
            //Creating static datatable
            DataTable dt = new DataTable();
            dt.Columns.Add("month");

            //Adding rows
            dt.Rows.Add("January");
            dt.Rows.Add("February");
            dt.Rows.Add("March");
            dt.Rows.Add("April");
            dt.Rows.Add("May");
            dt.Rows.Add("June");
            dt.Rows.Add("July");
            dt.Rows.Add("August");
            dt.Rows.Add("September");
            dt.Rows.Add("October");
            dt.Rows.Add("November");
            dt.Rows.Add("December");

            //Binding to grid
            gv.DataSource = dt;
            gv.DataBind();

        }
    }


    protected void gv_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            DropDownList drpDay = (DropDownList)e.Row.FindControl("drpDay");
            drpDay.DataSource = dtDay;
            drpDay.DataTextField = "Day";
            drpDay.DataValueField = "Day";
            drpDay.DataBind();

            drpDay.SelectedIndex = e.Row.RowIndex;
        }
        else if (e.Row.RowType == DataControlRowType.Header)
        {
            //Creating static datatable
            dtDay.Columns.Add("Day");
            //Adding rows
            dtDay.Rows.Add("1");
            dtDay.Rows.Add("2");
            dtDay.Rows.Add("3");
            dtDay.Rows.Add("4");
            dtDay.Rows.Add("5");
            dtDay.Rows.Add("6");
            dtDay.Rows.Add("7");
            dtDay.Rows.Add("8");
            dtDay.Rows.Add("9");
            dtDay.Rows.Add("10");
            dtDay.Rows.Add("11");
            dtDay.Rows.Add("12");
            dtDay.Rows.Add("13");
            dtDay.Rows.Add("14");
            dtDay.Rows.Add("15");
            dtDay.Rows.Add("16");
            dtDay.Rows.Add("17");
            dtDay.Rows.Add("18");
            dtDay.Rows.Add("19");
            dtDay.Rows.Add("20");
            dtDay.Rows.Add("21");
            dtDay.Rows.Add("22");
            dtDay.Rows.Add("23");
            dtDay.Rows.Add("24");
            dtDay.Rows.Add("25");
            dtDay.Rows.Add("26");
            dtDay.Rows.Add("27");
            dtDay.Rows.Add("28");
            dtDay.Rows.Add("29");
            dtDay.Rows.Add("30");
        }
    }
}

Posted 9-Feb-12 20:08pm

rockpune

Updated 9-Feb-12 20:09pm

Sridhar Patnayak

v2

Add a Solution

Comments

Rajeev Jayaram 10-Feb-12 2:11am

Hint: Quote from your question "Are you missing a using directive or an assembly reference?"

rockpune 10-Feb-12 2:13am

now wat i have to do

rockpune 10-Feb-12 2:17am

Server Error in '/Bind dropdwnlist in gridview' 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.default2_aspx' does not contain a definition for 'gv_SelectedIndexChanged' and no extension method 'gv_SelectedIndexChanged' accepting a first argument of type 'ASP.default2_aspx' could be found (are you missing a using directive or an assembly reference?)

Source Error:

Line 11: <div>
Line 12:
Line 13: <asp:GridView runat="server" ID="gv" AutoGenerateColumns="False"
Line 14: onrowdatabound="gv_RowDataBound" CellPadding="4" ForeColor="#333333"
Line 15: GridLines="None" onselectedindexchanged="gv_SelectedIndexChanged" Width="188px">

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Sergey Alexandrovich Kryukov · Answer 1 · 2012-02-09T20:24:00

What to do: either start going in for programming or give up this branch of engineering. So far, what are you doing is something opposite to programming, which is all about generalization and abstractions.

A software engineer will never ever repeat the line like dtDay.Rows.Add("1"); 30 times! If you know what to do instead, it's kind of quite difficult to explain in a quick answer. Ever heard of methods, parameters, loops, etc.?

Maybe this can help you: http://en.wikipedia.org/wiki/Don%27t_repeat_yourself[^]?

At this moment, no way you should develop ASP.NET, UI or any other "advanced" application. Your only chance is starting with simple exercises using tiny console applications, until you get a grasp on how to do programming in principle. Right now, what are you doing is just a waste of time. Grab an elementary book on programming, language and .NET and go ahead.

Please don't get offended and understand I telling this to really help you.

See also:
using and meaningful of Framework[^],
http://norvig.com/21-days.html[^].

—SA

Al Moje · Answer 2 · 2012-02-09T20:17:00

Solution 1

Hi,

As I see in you code clearly no gv_SelectedIndexChanged function/method has been created. I advise you to create one...
Example:

C#

protected void gv_SelectedIndexChanged(object sender, EventArgs e)
{
    // Your code here?...

}

You may do it on Disign page mode. Right click your grid then goto Properties, Event then
click on SelectedIndexChanged.

Happy coding...

Posted 9-Feb-12 20:17pm

Al Moje

Updated 9-Feb-12 20:24pm

v3

Comments

rockpune 10-Feb-12 2:18am

thank u

Al Moje 10-Feb-12 2:28am

Please vote if its help you...

Welcome and Regards,