Dynamically Add and Remove Rows In GridView In Asp.Net
.aspx code
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="DynamicGridview.aspx.cs" Inherits="DynamicGridview" %>
<!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>
<center>
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="false"
ShowFooter="true" onrowcommand="GridView1_RowCommand">
<AlternatingRowStyle BackColor="#CCCCFF" BorderColor="#003366"
BorderStyle="Solid" BorderWidth="1px" />
<Columns>
<asp:TemplateField HeaderText="Name">
<ItemTemplate>
<asp:TextBox ID="txtname" runat="server"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Phone">
<ItemTemplate>
<asp:TextBox ID="txtphone" runat="server"></asp:TextBox>
</ItemTemplate>
<FooterTemplate>
<center>
<asp:Button ID="btnadd" runat="server" Text="Add New" CommandName="addnew" />
</center>
</FooterTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Email">
<ItemTemplate>
<asp:TextBox ID="txtemail" runat="server"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Address">
<ItemTemplate>
<asp:TextBox ID="txtaddress" runat="server"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Delete">
<ItemTemplate>
<asp:Button ID="btndelete" runat="server" Text="Delete" CommandName="deleted" />
</ItemTemplate>
</asp:TemplateField>
</Columns>
<EmptyDataRowStyle BackColor="White" />
<FooterStyle BackColor="#336699" />
<HeaderStyle BackColor="#336699" ForeColor="White" />
</asp:GridView>
</center>
</div>
</form>
</body>
</html>
.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 DynamicGridview : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
bind_grid();
}
}
protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
{
if (e.CommandName == "addnew")
{
addnewRow();
}
if (e.CommandName == "deleted")
{
Button btn = (Button)e.CommandSource;
if (btn != null)
{
GridViewRow grdrow = (GridViewRow) btn.NamingContainer;
int row = grdrow.RowIndex;
deleteRow();
DataTable dtt = (DataTable)ViewState["deleteRow"];
if (dtt.Rows.Count > 1)
{
dtt.Rows.RemoveAt(row);
dtt.AcceptChanges();
}
GridView1.DataSource = dtt;
GridView1.DataBind();
}
}
}
public void bind_grid()
{
DataTable dt = new DataTable();
dt.Columns.Add(new DataColumn("Name", typeof(string)));
dt.Columns.Add(new DataColumn ("Phone",typeof(string)));
dt.Columns.Add(new DataColumn("Email", typeof(string)));
dt.Columns.Add(new DataColumn("Address",typeof(string)));
DataRow dr = dt.NewRow();
dt.Rows.Add(dr);
ViewState["CurrentTable"] = dt;
GridView1.DataSource = dt;
GridView1.DataBind();
}
public void addnewRow()
{
DataTable dt1 = new DataTable();
dt1.Columns.Add(new DataColumn("Name", typeof(string)));
dt1.Columns.Add(new DataColumn("Phone", typeof(string)));
dt1.Columns.Add(new DataColumn("Email", typeof(string)));
dt1.Columns.Add(new DataColumn("Address", typeof(string)));
for (int i = 0; i < GridView1.Rows.Count;i++ )
{
TextBox txt_name = (TextBox)GridView1.Rows[0].Cells[0].FindControl("txtname");
TextBox txt_phone = (TextBox)GridView1.Rows[0].Cells[0].FindControl("txtphone");
TextBox txt_email = (TextBox)GridView1.Rows[0].Cells[0].FindControl("txtemail");
TextBox txt_address = (TextBox)GridView1.Rows[0].Cells[0].FindControl("txtaddress");
DataRow dr = dt1.NewRow();
dr["Name"] = txt_name.Text;
dr["Phone"] = txt_phone.Text;
dr["Email"] = txt_email.Text;
dr["Address"] = txt_address.Text;
dt1.Rows.Add(dr);
dt1.AcceptChanges();
}
DataRow dr1 = dt1.NewRow();
dr1["Name"] = string.Empty;
dr1["Phone"] = string.Empty;
dr1["Email"] = string.Empty;
dr1["Address"] = string.Empty;
dt1.Rows.Add(dr1);
ViewState["deleteRow"] = dt1;
GridView1.DataSource = dt1;
GridView1.DataBind();
}
public void deleteRow()
{
DataTable dt1 = new DataTable();
dt1.Columns.Add(new DataColumn("Name", typeof(string)));
dt1.Columns.Add(new DataColumn("Phone", typeof(string)));
dt1.Columns.Add(new DataColumn("Email", typeof(string)));
dt1.Columns.Add(new DataColumn("Address", typeof(string)));
for (int i = 0; i < GridView1.Rows.Count; i++)
{
TextBox txt_name = (TextBox)GridView1.Rows[0].Cells[0].FindControl("txtname");
TextBox txt_phone = (TextBox)GridView1.Rows[0].Cells[0].FindControl("txtphone");
TextBox txt_email = (TextBox)GridView1.Rows[0].Cells[0].FindControl("txtemail");
TextBox txt_address = (TextBox)GridView1.Rows[0].Cells[0].FindControl("txtaddress");
DataRow dr = dt1.NewRow();
dr["Name"] = txt_name.Text;
dr["Phone"] = txt_phone.Text;
dr["Email"] = txt_email.Text;
dr["Address"] = txt_address.Text;
dt1.Rows.Add(dr);
dt1.AcceptChanges();
}
ViewState["deleteRow"] = dt1;
GridView1.DataSource = dt1;
GridView1.DataBind();
}
}
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