defaultcs.aspx.cs

Telerik是很大的第三方软件制造商

using System;
using System.Data;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using Telerik.QuickStart;
using Telerik.WebControls;

namespace Telerik.CallbackExamplesCSharp.Controls.Timer
{
	/// <summary>
	/// Summary description for _Default.
	/// </summary>
	public class DefaultCS: XhtmlPage
	{
		protected Telerik.WebControls.CallbackButton btnStart1;
		protected Telerik.WebControls.CallbackButton btnStop2;
		protected Telerik.WebControls.CallbackButton btnStop1;
		protected Telerik.WebControls.CallbackButton btnStart2;
		protected Telerik.WebControls.CallbackTimer timer1;
		protected Telerik.WebControls.CallbackTimer timer2;
		protected System.Web.UI.WebControls.DataGrid DataGrid1;
		protected System.Web.UI.WebControls.Label Label1;
		protected System.Web.UI.WebControls.Label Label2;
		protected System.Web.UI.WebControls.Label label11;
		protected System.Web.UI.WebControls.Label statusLabel;
		protected Telerik.WebControls.LoadingPanel LoadingPanel1;
		protected System.Web.UI.HtmlControls.HtmlImage Img1;
		protected Telerik.WebControls.LoadingPanel Loadingpanel2;
		protected System.Web.UI.HtmlControls.HtmlImage Img2;
		protected System.Web.UI.WebControls.DataGrid DataGrid2;		

		private void Page_Load(object sender, System.EventArgs e)		
		{			
			if (!Page.IsPostBack)
			{				
				LoadData1();
				LoadData2();
			}
		}

		#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.DataGrid1.ItemDataBound += new System.Web.UI.WebControls.DataGridItemEventHandler(this.DataGrid1_ItemDataBound);
			this.btnStart1.Click += new System.EventHandler(this.btnStart1_Click);
			this.btnStop1.Click += new System.EventHandler(this.btnStop1_Click);
			this.btnStart2.Click += new System.EventHandler(this.btnStart2_Click);
			this.btnStop2.Click += new System.EventHandler(this.btnStop2_Click);
			this.timer1.Tick += new Telerik.WebControls.CallbackTimer.TickEvent(this.CallbackTimer1_Tick);
			this.timer2.Tick += new Telerik.WebControls.CallbackTimer.TickEvent(this.CallbackTimer2_Tick);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void LoadData1()
		{
			DataTable table = new DataTable();
			table.Columns.Add("1", typeof(string));
			table.Columns.Add("2", typeof(double));
			table.Columns.Add("3", typeof(double));

			Random r = new Random();

			table.Rows.Add(new object[] { "Composite",		r.Next(7000, 8000), r.Next(-50, 500) / 100.0 });
			table.Rows.Add(new object[] { "Energy",			r.Next(8000, 9000), r.Next(-50, 50) / 100.0 });
			table.Rows.Add(new object[] { "Financial",		r.Next(7000, 8000), r.Next(-50, 50) / 100.0 });
			table.Rows.Add(new object[] { "Health care",	r.Next(5000, 6000), r.Next(-50, 50) / 100.0 });
					
			DataGrid1.DataSource = table;
			DataGrid1.DataBind();
			
			foreach (DataGridItem item in DataGrid1.Items)
			{
				System.Web.UI.WebControls.Image img = (System.Web.UI.WebControls.Image) item.FindControl("Image1");
				double val = (double) table.Rows[item.ItemIndex]["3"];
				if (val > 0)
				{
					img.ImageUrl = "image1.jpg";
				}
				else
				{
					img.ImageUrl = "image2.jpg";
				}
			}
		}

		private void LoadData2()
		{
			DataTable table = new DataTable();
			table.Columns.Add("1", typeof(string));
			table.Columns.Add("2", typeof(double));
			table.Columns.Add("3", typeof(double));

			Random r = new Random();

			table.Rows.Add(new object[] { "Composite",		r.Next(7000, 8000), r.Next(-50, 50) / 100.0 });
			table.Rows.Add(new object[] { "Energy",			r.Next(8000, 9000), r.Next(-50, 50) / 100.0 });
			table.Rows.Add(new object[] { "Financial",		r.Next(7000, 8000), r.Next(-50, 50) / 100.0 });
			table.Rows.Add(new object[] { "Health care",	r.Next(5000, 6000), r.Next(-50, 50) / 100.0 });
					
			DataGrid2.DataSource = table;						
			DataGrid2.DataBind();

			foreach (DataGridItem item in DataGrid2.Items)
			{
				System.Web.UI.WebControls.Image img = (System.Web.UI.WebControls.Image) item.FindControl("Image2");
				double val = (double) table.Rows[item.ItemIndex]["3"];
				if (val > 0)
				{
					img.ImageUrl = "image1.jpg";
				}
				else
				{
					img.ImageUrl = "image2.jpg";
				}
			}
		}
		

		private void CallbackTimer1_Tick(object sender, System.EventArgs args)
		{			
			LoadData1();	
		}

		private void CallbackTimer2_Tick(object sender, System.EventArgs args)
		{			
			LoadData2();
		}

		private void btnStart1_Click(object sender, System.EventArgs e)
		{
			timer1.Start();
			btnStart1.Enabled = false;
			btnStop1.Enabled = true;
		}

		private void btnStop1_Click(object sender, System.EventArgs e)
		{
			timer1.Stop();
			btnStart1.Enabled = true;
			btnStop1.Enabled = false;
		}

		private void btnStart2_Click(object sender, System.EventArgs e)
		{
			timer2.Start();
			btnStart2.Enabled = false;
			btnStop2.Enabled = true;
		}

		private void btnStop2_Click(object sender, System.EventArgs e)
		{
			timer2.Stop();
			btnStart2.Enabled = true;
			btnStop2.Enabled = false;
		}

		private void DataGrid1_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
		{
			/*
			if ((e.Item.ItemType == ListItemType.Item) || (e.Item.ItemType == ListItemType.AlternatingItem))
			{
				Image control = (Image) e.Item.FindControl("Image1");

				if (control != null)
				{
					throw new Exception();
				}
			}
			*/
		}

	

	}
}