<%@ Page Language="C#" AutoEventWireup="true" CodeFile="AddDynamicRowsInGridview.aspx.cs" Inherits="AddDynamicRowsInGridview" %>
<!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>AddDynamicRowsInGridview Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Label ID="Label1" runat="server" Text="ADD EMPLOYER DETAILS IN THE GRIDVIEW(EXAMPLE CODE)"></asp:Label>
<asp:GridView ID="grvEmployeeDetails" runat="server"
ShowFooter="True" AutoGenerateColumns="False"
CellPadding="4" ForeColor="#333333"
GridLines="None" OnRowDeleting="grvEmployeeDetails_RowDeleting"
>
<Columns>
<asp:BoundField DataField="RowNumber" HeaderText="SNo" />
<asp:TemplateField HeaderText="Employee Name">
<ItemTemplate>
<asp:TextBox ID="txtName" runat="server"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Employee Age">
<ItemTemplate>
<asp:TextBox ID="txtAge" runat="server"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Employee Address">
<ItemTemplate>
<asp:TextBox ID="txtAddress" runat="server"
Height="55px" TextMode="MultiLine"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Gender">
<ItemTemplate>
<asp:RadioButtonList ID="RBLGender"
runat="server" RepeatDirection="Horizontal">
<asp:ListItem Value="M">Male</asp:ListItem>
<asp:ListItem Value="F">Female</asp:ListItem>
</asp:RadioButtonList>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Qualification">
<ItemTemplate>
<asp:DropDownList ID="drpQualification" runat="server">
<asp:ListItem Value="G">Graduate</asp:ListItem>
<asp:ListItem Value="P">Post Graduate</asp:ListItem>
</asp:DropDownList>
</ItemTemplate>
<FooterStyle HorizontalAlign="Right" />
<FooterTemplate>
<asp:Button ID="ButtonAdd" runat="server"
Text="Add New Employee Details" OnClick="ButtonAdd_Click" />
</FooterTemplate>
</asp:TemplateField>
<asp:CommandField ShowDeleteButton="True" />
</Columns>
<FooterStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
<RowStyle BackColor="#EFF3FB" />
<EditRowStyle BackColor="#2461BF" />
<SelectedRowStyle BackColor="#D1DDF1" Font-Bold="True" ForeColor="#333333" />
<PagerStyle BackColor="#2461BF" ForeColor="White" HorizontalAlign="Center" />
<HeaderStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
<AlternatingRowStyle BackColor="White" />
</asp:GridView>
</div>
</form>
</body>
</html>
Here we created the gridview with custom columns .just edit as per your requirnment..
...
using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
public partial class AddDynamicRowsInGridview : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
FirstGridViewRow();
}
}
private void FirstGridViewRow()
{
DataTable dt = new DataTable();
DataRow dr = null;
dt.Columns.Add(new DataColumn("RowNumber", typeof(string)));
dt.Columns.Add(new DataColumn("Col1", typeof(string)));
dt.Columns.Add(new DataColumn("Col2", typeof(string)));
dt.Columns.Add(new DataColumn("Col3", typeof(string)));
dt.Columns.Add(new DataColumn("Col4", typeof(string)));
dt.Columns.Add(new DataColumn("Col5", typeof(string)));
dr = dt.NewRow();
dr["RowNumber"] = 1;
dr["Col1"] = string.Empty;
dr["Col2"] = string.Empty;
dr["Col3"] = string.Empty;
dr["Col4"] = string.Empty;
dr["Col5"] = string.Empty;
dt.Rows.Add(dr);
ViewState["CurrentTable"] = dt;
grvEmployeeDetails.DataSource = dt;
grvEmployeeDetails.DataBind();
}
private void AddNewRow()
{
int rowIndex = 0;
if (ViewState["CurrentTable"] != null)
{
DataTable dtCurrentTable = (DataTable)ViewState["CurrentTable"];
DataRow drCurrentRow = null;
if (dtCurrentTable.Rows.Count > 0)
{
for (int i = 1; i <= dtCurrentTable.Rows.Count; i++)
{
TextBox TextBoxName =
(TextBox)grvEmployeeDetails.Rows[rowIndex].Cells[1].FindControl("txtName");
TextBox TextBoxAge =
(TextBox)grvEmployeeDetails.Rows[rowIndex].Cells[2].FindControl("txtAge");
TextBox TextBoxAddress =
(TextBox)grvEmployeeDetails.Rows[rowIndex].Cells[3].FindControl("txtAddress");
RadioButtonList RBLGender =
(RadioButtonList)grvEmployeeDetails.Rows[rowIndex].Cells[4].FindControl("RBLGender");
DropDownList DrpQualification =
(DropDownList)grvEmployeeDetails.Rows[rowIndex].Cells[5].FindControl("drpQualification");
drCurrentRow = dtCurrentTable.NewRow();
drCurrentRow["RowNumber"] = i + 1;
dtCurrentTable.Rows[i - 1]["Col1"] = TextBoxName.Text;
dtCurrentTable.Rows[i - 1]["Col2"] = TextBoxAge.Text;
dtCurrentTable.Rows[i - 1]["Col3"] = TextBoxAddress.Text;
dtCurrentTable.Rows[i - 1]["Col4"] = RBLGender.SelectedValue;
dtCurrentTable.Rows[i - 1]["Col5"] = DrpQualification.SelectedValue;
rowIndex++;
}
dtCurrentTable.Rows.Add(drCurrentRow);
ViewState["CurrentTable"] = dtCurrentTable;
grvEmployeeDetails.DataSource = dtCurrentTable;
grvEmployeeDetails.DataBind();
}
}
else
{
Response.Write("ViewState is null");
}
SetPreviousData();
}
private void SetPreviousData()
{
int rowIndex = 0;
if (ViewState["CurrentTable"] != null)
{
DataTable dt = (DataTable)ViewState["CurrentTable"];
if (dt.Rows.Count > 0)
{
for (int i = 0; i < dt.Rows.Count; i++)
{
TextBox TextBoxName = (TextBox)grvEmployeeDetails.Rows[rowIndex].Cells[1].FindControl("txtName");
TextBox TextBoxAge = (TextBox)grvEmployeeDetails.Rows[rowIndex].Cells[2].FindControl("txtAge");
TextBox TextBoxAddress =
(TextBox)grvEmployeeDetails.Rows[rowIndex].Cells[3].FindControl("txtAddress");
RadioButtonList RBLGender =
(RadioButtonList)grvEmployeeDetails.Rows[rowIndex].Cells[4].FindControl("RBLGender");
DropDownList DrpQualification =
(DropDownList)grvEmployeeDetails.Rows[rowIndex].Cells[5].FindControl("drpQualification");
TextBoxName.Text = dt.Rows[i]["Col1"].ToString();
TextBoxAge.Text = dt.Rows[i]["Col2"].ToString();
TextBoxAddress.Text = dt.Rows[i]["Col3"].ToString();
RBLGender.SelectedValue = dt.Rows[i]["Col4"].ToString();
DrpQualification.SelectedValue = dt.Rows[i]["Col5"].ToString();
rowIndex++;
}
}
}
}
protected void grvEmployeeDetails_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
SetRowData();
if (ViewState["CurrentTable"] != null)
{
DataTable dt = (DataTable)ViewState["CurrentTable"];
DataRow drCurrentRow = null;
int rowIndex = Convert.ToInt32(e.RowIndex);
if (dt.Rows.Count > 1)
{
dt.Rows.Remove(dt.Rows[rowIndex]);
drCurrentRow = dt.NewRow();
ViewState["CurrentTable"] = dt;
grvEmployeeDetails.DataSource = dt;
grvEmployeeDetails.DataBind();
for (int i = 0; i < grvEmployeeDetails.Rows.Count - 1; i++)
{
grvEmployeeDetails.Rows[i].Cells[0].Text = Convert.ToString(i + 1);
}
SetPreviousData();
}
}
}
private void SetRowData()
{
int rowIndex = 0;
if (ViewState["CurrentTable"] != null)
{
DataTable dtCurrentTable = (DataTable)ViewState["CurrentTable"];
DataRow drCurrentRow = null;
if (dtCurrentTable.Rows.Count > 0)
{
for (int i = 1; i <= dtCurrentTable.Rows.Count; i++)
{
TextBox TextBoxName = (TextBox)grvEmployeeDetails.Rows[rowIndex].Cells[1].FindControl("txtName");
TextBox TextBoxAge = (TextBox)grvEmployeeDetails.Rows[rowIndex].Cells[2].FindControl("txtAge");
TextBox TextBoxAddress = (TextBox)grvEmployeeDetails.Rows[rowIndex].Cells[3].FindControl("txtAddress");
RadioButtonList RBLGender =
(RadioButtonList)grvEmployeeDetails.Rows[rowIndex].Cells[4].FindControl("RBLGender");
DropDownList DrpQualification =
(DropDownList)grvEmployeeDetails.Rows[rowIndex].Cells[5].FindControl("drpQualification");
drCurrentRow = dtCurrentTable.NewRow();
drCurrentRow["RowNumber"] = i + 1;
dtCurrentTable.Rows[i - 1]["Col1"] = TextBoxName.Text;
dtCurrentTable.Rows[i - 1]["Col2"] = TextBoxAge.Text;
dtCurrentTable.Rows[i - 1]["Col3"] = TextBoxAddress.Text;
dtCurrentTable.Rows[i - 1]["Col4"] = RBLGender.SelectedValue;
dtCurrentTable.Rows[i - 1]["Col5"] = DrpQualification.SelectedValue;
rowIndex++;
}
ViewState["CurrentTable"] = dtCurrentTable;
//grvStudentDetails.DataSource = dtCurrentTable;
//grvStudentDetails.DataBind();
}
}
else
{
Response.Write("ViewState is null");
}
//SetPreviousData();
}
protected void ButtonAdd_Click(object sender, EventArgs e)
{
AddNewRow();
}
}
Here we created four function to add new row...AddNewRow() and set previous data in gridview.
