<%@ Page Language="C#" AutoEventWireup="true" CodeFile="MyGridView.aspx.cs" Inherits="MyGridView" %> <!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"> </asp:GridView> </div> </form> </body> </html>
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 MyGridView : System.Web.UI.Page { private DataTable dataSource; protected void Page_Init(object sender, EventArgs e) { dataSource = new DataTable(); dataSource = ViewState["dataSource"] != null ? (DataTable)ViewState["dataSource"] : GetDataSource(); } protected void Page_Load(object sender, EventArgs e) { BoundField Index = new BoundField(); Index.HeaderText = "#"; Index.HeaderStyle.HorizontalAlign = HorizontalAlign.Center; Index.ItemStyle.HorizontalAlign = HorizontalAlign.Right; Index.DataField = "ID"; BoundField MonthName = new BoundField(); MonthName.HeaderText = "MonthName"; MonthName.HeaderStyle.HorizontalAlign = HorizontalAlign.Center; MonthName.ItemStyle.HorizontalAlign = HorizontalAlign.Left; MonthName.DataField = "Month"; CommandField DeleteButtom = new CommandField(); DeleteButtom.HeaderText = "Delete"; DeleteButtom.ButtonType = ButtonType.Image; DeleteButtom.ShowEditButton = false; DeleteButtom.ShowDeleteButton = true; DeleteButtom.DeleteImageUrl = "~/images/delete-16x16.png"; DeleteButtom.ItemStyle.HorizontalAlign = HorizontalAlign.Center; DeleteButtom.HeaderStyle.HorizontalAlign = HorizontalAlign.Center; GridView1.AutoGenerateColumns = false; GridView1.DataKeyNames = new String[] { "ID" }; GridView1.RowDataBound += new GridViewRowEventHandler(GridView1_RowDataBound); GridView1.RowDeleting += new GridViewDeleteEventHandler(GridView1_RowDeleting); if (!IsPostBack) { GridView1.Columns.Add(Index); GridView1.Columns.Add(MonthName); GridView1.Columns.Add(DeleteButtom); GridView1.DataSource = dataSource; GridView1.DataBind(); } ViewState["dataSource"] = dataSource; } protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e) { if (e.Row.RowType == DataControlRowType.DataRow) { ImageButton DeleteButton = (ImageButton)e.Row.Cells[2].Controls[0]; DeleteButton.OnClientClick = "javascript:return confirm('คุณต้องการลบข้อมูลนี้ใช่หรือไม่')"; } } protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e) { dataSource.Rows[((int)GridView1.DataKeys[e.RowIndex].Value) - 1].Delete(); dataSource.AcceptChanges(); GridView1.DataSource = dataSource; GridView1.DataBind(); ViewState["dataSource"] = dataSource; MessageBox.Show(GridView1.DataKeys[e.RowIndex].Value.ToString()); } private DataTable GetDataSource() { DataTable Dt = new DataTable(); Dt.Columns.Add(new DataColumn("ID", typeof(int))); Dt.Columns.Add(new DataColumn("Month", typeof(string))); for (int i = 1; i <= 12; i++) { DataRow Dr = Dt.NewRow(); Dr["ID"] = i.ToString(); Dr["Month"] = DateTime.Parse(string.Format("1/{0}/2010", i.ToString())).ToString("MMMM"); Dt.Rows.Add(Dr); } return Dt; } }
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