defaultcs.aspx.cs

Telerik是很大的第三方软件制造商

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Data.OleDb;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using Telerik.QuickStart;

namespace Telerik.SpellExamplesCSharp.Programming.GridSpell
{
	/// <summary>
	/// Summary description for GridSpell.
	/// </summary>
	public class DefaultCS : XhtmlPage
	{
		protected Telerik.WebControls.RadSpell RadSpell1;
		protected DataGrid MyDataGrid;

		private void Page_Load(object sender, System.EventArgs e)
		{
			if (!Page.IsPostBack) 
				ReadAllRecords();
		}

		private OleDbConnection CreateConnection() 
		{
			OleDbConnection connection = new OleDbConnection();
			connection.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + Request.MapPath("News.mdb") + ";User ID=;Password=;";
			connection.Open();
			return connection;
		}
		
		private void ReadAllRecords ()
		{
			OleDbConnection connection = CreateConnection();
			OleDbCommand command2 = new OleDbCommand("SELECT NewsID, NewsDate, NewsText FROM News", connection);			
			MyDataGrid.DataSource = command2.ExecuteReader();
			MyDataGrid.DataBind();
			connection.Close();
		}

		public void MyDataGrid_Edit(object sender, DataGridCommandEventArgs e)
		{			
			MyDataGrid.EditItemIndex = e.Item.ItemIndex;
			ReadAllRecords();
		}

		public void MyDataGrid_Cancel(object sender, DataGridCommandEventArgs e)
		{
			MyDataGrid.EditItemIndex = -1;
			ReadAllRecords();
		}

		public void MyDataGrid_Update(object sender, DataGridCommandEventArgs e)
		{
			string text = ((TextBox)e.Item.FindControl("textBox1")).Text;
			string itemID = ((Label)e.Item.FindControl("IdLabel")).Text;
			OleDbConnection connection = CreateConnection();			
			OleDbCommand  command = new OleDbCommand("UPDATE News SET NewsDate = Now(), NewsText = @content WHERE NewsID = @nid", connection);			
			command.Parameters.Add("content", text);
			command.Parameters.Add("nid", itemID);			
			try 
			{
				command.ExecuteNonQuery();
			} 
			catch (Exception) {}
			connection.Close();
			MyDataGrid.EditItemIndex = -1;
			ReadAllRecords();
		}

		public void MyDataGrid_Delete(object sender, DataGridCommandEventArgs e)
		{
			string itemID = ((Label)e.Item.FindControl("IdLabel")).Text;			
			OleDbConnection connection = CreateConnection();
			OleDbCommand com = new OleDbCommand("DELETE FROM News WHERE NewsID = @nid", connection);
			com.Parameters.Add("nid", itemID);
			com.ExecuteNonQuery();
			connection.Close();
			ReadAllRecords();
		}



		#region Web Form Designer generated code
		override protected void OnInit(EventArgs e)
		{
			//
			// CODEGEN: This call is required by the ASP.NET Web Form Designer.
			//
			InitializeComponent();
			base.OnInit(e);
		}
		
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{    
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion
	}
}