<%@ Page Language="C#" AutoEventWireup="true" CodeFile="InsertRowInGridView.aspx.cs" Inherits="InsertRowGridView" %> <!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>Untitled Page</title> </head> <body> <form id="form1" runat="server"> <div> <asp:GridView AutoGenerateColumns="False" ID="GridView1" runat="server" OnRowCancelingEdit="GridView1_RowCancelingEdit" OnRowEditing="GridView1_RowEditing" OnRowUpdating="GridView1_RowUpdating" OnRowCommand="GridView1_RowCommand"> <Columns> <asp:TemplateField ShowHeader="False"> <EditItemTemplate> <asp:LinkButton ID="LinkButton1" runat="server" CausesValidation="True" CommandName="Update" Text="Update"></asp:LinkButton> <asp:LinkButton ID="LinkButton2" runat="server" CausesValidation="False" CommandName="Cancel" Text="Cancel"></asp:LinkButton> </EditItemTemplate> <FooterTemplate> <asp:LinkButton ID="LinkButton1" runat="server" CommandName="Insert">Insert</asp:LinkButton> </FooterTemplate> <ItemTemplate> <asp:LinkButton ID="LinkButton1" runat="server" CausesValidation="False" CommandName="Edit" Text="Edit"></asp:LinkButton> </ItemTemplate> </asp:TemplateField> <asp:TemplateField> <FooterTemplate> <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox> </FooterTemplate> <ItemTemplate> <asp:Label ID="lblID" runat="server" Text='<%#Eval("ID")%>'></asp:Label> </ItemTemplate> <EditItemTemplate> <asp:TextBox ID="txtID" runat="server" Text='<%#Bind("ID") %>'></asp:TextBox> </EditItemTemplate> </asp:TemplateField> <asp:TemplateField HeaderText="Name"> <FooterTemplate> <asp:TextBox ID="TextBox2" runat="server"></asp:TextBox> </FooterTemplate> <ItemTemplate> <asp:Label ID="lblName" runat="server" Text='<%#Eval("Name") %>'></asp:Label> </ItemTemplate> <EditItemTemplate> <asp:TextBox ID="txtName" runat="server" Text='<%#Bind("Name") %>'></asp:TextBox> </EditItemTemplate> </asp:TemplateField> </Columns> </asp:GridView> </div> <asp:Button ID="btnAdd" runat="server" OnClick="btnAdd_Click" Text="Add" /> </form> </body> </html>
using System; using System.Data; using System.Configuration; using System.Collections; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; public partial class InsertRowGridView : System.Web.UI.Page { DataTable dt = new DataTable(); protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { BindGrid(); } } private void BindGrid() { DataTable dt = new DataTable(); dt = (DataTable)Session["MyDataSource"]; GridView1.DataSource = GetDataSource(); GridView1.DataBind(); } protected DataTable GetDataSource() { const string key = "MyDataSource"; DataTable dt = Session[key] as DataTable; if (dt == null) { dt = new DataTable(); dt.Columns.Add("ID", typeof(int)); dt.Columns.Add("Name", typeof(string)); dt.Rows.Add("1", "first object"); dt.Rows.Add("2", "second object"); Session[key] = dt; } return dt; } protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e) { GridView1.EditIndex = e.NewEditIndex; BindGrid(); } protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e) { GridView1.EditIndex = -1; BindGrid(); } protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e) { GridViewRow row = GridView1.Rows[e.RowIndex]; GridView1.EditIndex = -1; if (row != null) { TextBox txtID = GridView1.Rows[e.RowIndex].Cells[0].FindControl("txtID") as TextBox; TextBox txtName = GridView1.Rows[e.RowIndex].Cells[1].FindControl("txtName") as TextBox; dt = (DataTable)Session["MyDataSource"]; for (int i = 0; i < dt.Rows.Count; i++) { if (e.RowIndex == i) { dt.Rows[i][1] = txtName.Text; dt.Rows[i][0] = Convert.ToInt32(txtID.Text); Session["MyDataSource"] = dt; GridView1.DataSource = dt; GridView1.DataBind(); } } } } protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e) { if (e.CommandName == "Insert") { // these are alternate ways of getting to grid //GridView gv = sender as GridView; //GridView gv = (GridView)sender; AddData(); GridView1.ShowFooter = false; BindGrid(); btnAdd.Enabled = true; } } protected void AddData() { DataTable dt = (DataTable)Session["MyDataSource"]; DataRow rw = dt.NewRow(); TextBox txt = (TextBox)GridView1.FooterRow.Cells[1].FindControl("TextBox1"); rw[0] = Convert.ToInt32(txt.Text); txt = (TextBox)GridView1.FooterRow.Cells[2].FindControl("TextBox2"); rw[1] = txt.Text; dt.Rows.Add(rw); Session["MyDataSource"] = dt; } protected void btnAdd_Click(object sender, EventArgs e) { GridView1.ShowFooter = true; BindGrid(); btnAdd.Enabled = false; } }
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