using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.SqlClient;
using System.Configuration;
using System.Collections;
public partial class _Default : System.Web.UI.Page
{
SqlConnection con = new SqlConnection("Data Source=KAARDP07\\SQLEXPRESS;Initial Catalog=sample;Integrated Security=True");
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
BindGridview();
}
}
protected void BindGridview()
{
con.Open();
SqlCommand cmd = new SqlCommand("select * from CB1", con);
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
con.Close();
gvUserInfo.DataSource = ds;
gvUserInfo.DataBind();
}
protected void gvUserInfo_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
con.Open();
var ddl = (DropDownList)e.Row.FindControl("ddlCity");
int CountryId = Convert.ToInt32(e.Row.Cells[0].Text);
SqlCommand cmd = new SqlCommand("select * from CB1", con);
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
con.Close();
ddl.DataSource = ds;
ddl.DataTextField = "Number";
ddl.DataValueField = "ID";
ddl.DataBind();
ddl.Items.Insert(0, new ListItem("--Select--", "0"));
}
}
protected void ButtonAdd_Click(object sender, EventArgs e)
{
AddNewRowToGrid();
}
private void AddNewRowToGrid()
{
if (ViewState["CurrentTable"] != null)
{
DataTable dtCurrentTable = (DataTable)ViewState["CurrentTable"];
DataRow drCurrentRow = null;
if (dtCurrentTable.Rows.Count > 0)
{
drCurrentRow = dtCurrentTable.NewRow();
drCurrentRow["RowNumber"] = dtCurrentTable.Rows.Count + 1;
//add new row to DataTable
dtCurrentTable.Rows.Add(drCurrentRow);
//Store the current data to ViewState
ViewState["CurrentTable"] = dtCurrentTable;
for (int i = 0; i < dtCurrentTable.Rows.Count - 1; i++)
{
//extract the DropDownList Selected Items
DropDownList ddl1 = (DropDownList)gvUserInfo.Rows[i].Cells[1].FindControl("DropDownList1");
//DropDownList ddl2 = (DropDownList)gvUserInfo.Rows[i].Cells[2].FindControl("DropDownList2");
//DropDownList ddl3 = (DropDownList)gvUserInfo.Rows[i].Cells[3].FindControl("DropDownList3");
// Update the DataRow with the DDL Selected Items
dtCurrentTable.Rows[i]["Column1"] = ddl1.SelectedItem.Text;
//dtCurrentTable.Rows[i]["Column2"] = ddl2.SelectedItem.Text;
//dtCurrentTable.Rows[i]["Column3"] = ddl3.SelectedItem.Text;
}
//Rebind the Grid with the current data
con.Open();
SqlCommand cmd = new SqlCommand("select * from CB1", con);
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
con.Close();
gvUserInfo.DataSource = ds;
gvUserInfo.DataBind();
}
}
}
}
Aspx Code:
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!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 id="Head1" runat="server">
<title>Asp.net Bind Data to Dropdownlist in inside of gridview</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:GridView ID="gvUserInfo" runat="server" AutoGenerateColumns="false" OnRowDataBound="gvUserInfo_RowDataBound" >
<HeaderStyle BackColor="#df5015" Font-Bold="true" ForeColor="White" />
<Columns>
<asp:BoundField DataField="Id" HeaderText="Id" />
<asp:TemplateField HeaderText="Number">
<ItemTemplate>
<asp:DropDownList ID="ddlCity" runat="server" Width="100px"/>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
<footerStyle HorizontalAlign="Right" />
<footerTemplate>
<asp:Button ID="ButtonAdd" runat="server" Text="Click It"
onclick="ButtonAdd_Click" />
</footerTemplate>
</div>
</form>
</body>
</html>