grid view row add in data table Problem

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i have a grid view. it contains 5 column and first columns contain check box in each row on record. how to do this if i am check on first row than only first row save in table.. Means Check row save in table.. please help...
and another question is this is my code i want to do this only those row add in datatable.. but it gives an Error "Cannot column find 0" if i change the value of j=1 it gives again an error ""Cannot column find 1"

for (int i = 0; i <= gwRoom.Rows.Count; i++)
{
//drw = dtRoom.NewRow();
CheckBox check = (CheckBox)gwRoom.Rows[i].FindControl("chkAllocate");
if (check.Checked == true)
{
foreach (GridViewRow row in gwRoom.Rows)
{
DataRow datarw = null;
dtRoom = new DataTable();
datarw = dtRoom.NewRow();
for (int j = 1; j < row.Cells.Count; j++)
{
datarw[j] = row.Cells[j].Text;
}
dtRoom.Rows.Add(datarw);

}
gwRoom.DataSource=dtRoom;
gwRoom.DataBind();
}
}
Please please help me....

Posted 16-Jul-13 21:55pm

Arsalaan Ahmed

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Vindhyachal_Kumar · Answer 1 · 2013-07-16T22:54:00

Use the below Code

Default3.aspx

XML

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default3.aspx.cs" Inherits="Default3" %>

<!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 ID="GridView1" runat="server">
            <Columns>
                <asp:TemplateField>
                <ItemTemplate>
                <asp:CheckBox runat="server" ID="chkAllocate" Checked="true" />
                </ItemTemplate>
                </asp:TemplateField>
            </Columns>
        </asp:GridView>
    </div>
    <asp:Button ID="Button1" runat="server" Text="Button" OnClick="Button1_Click" />
    </form>
</body>
</html>

Default3.aspx.cs

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 Default3 : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            DataTable dt = new DataTable("tbl1");
            dt.Columns.Add("ID");
            dt.Columns.Add("Name");

            for (int i = 0; i < 10; i++)
            {
                DataRow dr = dt.NewRow();
                dr["ID"] = "ROW " + i.ToString();
                dr["Name"] = "Name" + i.ToString();
                dt.Rows.Add(dr);
            }
            GridView1.DataSource = dt;
            GridView1.DataBind();
        }
    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        DataTable dtRoom = null;
        DataRow datarw = null;
        dtRoom = new DataTable();
        foreach (GridViewRow row in GridView1.Rows)
        {
            CheckBox check = (CheckBox)row.FindControl("chkAllocate");
            if (check.Checked == true)
            {
                datarw = dtRoom.NewRow();
                for (int j = 1; j < row.Cells.Count; j++)
                {
                    if (dtRoom.Columns.Count != row.Cells.Count - 1)
                        dtRoom.Columns.Add("C" + j.ToString());
                    datarw[j - 1] = row.Cells[j].Text;
                }
                dtRoom.Rows.Add(datarw);
            }
        }
        GridView1.DataSource = dtRoom;
        GridView1.DataBind();
    }
}

Zafar A khan · Answer 2 · 2013-07-16T22:15:00

try this

C#

for (int i = 0; i <= gwRoom.Rows.Count; i++)
{
//drw = dtRoom.NewRow();
CheckBox check = (CheckBox)gwRoom.Rows[i].FindControl("chkAllocate");
if (check.Checked == true)
{

DataRow datarw = null;
dtRoom = new DataTable();
datarw = dtRoom.NewRow();
for (int j = 1; j < gwRoom.Rows[i].Cells.Count; j++)
{
datarw[j] = gwRoom.Rows[i].Cells[j].Text;
}
dtRoom.Rows.Add(datarw);



}
}
gwRoom.DataSource=dtRoom;
gwRoom.DataBind();

grid view row add in data table Problem

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