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.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;
using Telerik.WebControls;

namespace Telerik.ChartExamplesCS.SeriesItems
{
	/// <summary>
	/// Summary description for _Default.
	/// </summary>
	public class DefaultCS: XhtmlPage
	{
		protected System.Web.UI.WebControls.Label Label1;
		protected System.Web.UI.WebControls.Label Label2;
		protected System.Web.UI.WebControls.Label Label3;
		protected System.Web.UI.WebControls.Button Button1;
		protected System.Web.UI.WebControls.DropDownList ddlSeries;
		protected System.Web.UI.WebControls.DropDownList ddlItems;
		protected System.Web.UI.WebControls.TextBox tbValue;
		protected System.Web.UI.WebControls.Label Label4;
		protected System.Web.UI.WebControls.Button Button2;
		protected System.Web.UI.WebControls.Button Button3;
		protected System.Web.UI.WebControls.TextBox tbLabel;
		protected System.Web.UI.WebControls.Label lblIncorrectSettings;
		protected Telerik.WebControls.RadChart RadChart1;

		private void Page_Load(object sender, System.EventArgs e)
		{
			if (!Page.IsPostBack)
			{				
				SetControlValues();				
			}
		}
                
		private void SetControlValues()
		{
			ddlSeries.Items.Clear();
			foreach (ChartSeries series in RadChart1.ChartSeriesCollection)
			{
				ddlSeries.Items.Add(series.Name);
			}                
            
			SetItems(GetCurrentSeries());
			SetItemValues();            
		}

		private void SetControlValue(DropDownList ddList, string val)
		{
			if (ddList.SelectedItem != null)
			{
				ddList.SelectedItem.Selected = false;
			}
			ListItem selectedItem = ddList.Items.FindByValue(val);
			if (selectedItem != null)
			{
				selectedItem.Selected = true;
			}
		}

		private void SetItems(ChartSeries series)
		{
			ddlItems.Items.Clear();

			for (int counter = 0; counter < series.Items.Count; counter++)
			{
				ddlItems.Items.Add(counter.ToString());
			}
		}

		private void SetItemValues()
		{                        
			ChartSeriesItem seriesItem = GetCurrentItem();
			tbValue.Text = seriesItem.YValue.ToString();                        
			tbLabel.Text = seriesItem.Label;
			ResetAppearance();
			seriesItem.Appearance.BorderColor = Color.Red;
		}

		private void ResetAppearance()
		{
			foreach (ChartSeries series in RadChart1.ChartSeriesCollection)
			{
				foreach (ChartSeriesItem item in series.Items)
				{
					item.Appearance.CopyFrom(series.Appearance);
				}
			}
		}

		private ChartSeries GetCurrentSeries()
		{
			return RadChart1.ChartSeriesCollection[ddlSeries.SelectedIndex];
		}

		private ChartSeriesItem GetCurrentItem()
		{
			ChartSeries series = GetCurrentSeries();
			return series.Items[ddlItems.SelectedIndex];
		}
        

		#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);
		}
		
		///		Required method for Designer support - do not modify
		///		the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{
			this.ddlSeries.SelectedIndexChanged += new System.EventHandler(this.ddlSeries_SelectedIndexChanged);
			this.ddlItems.SelectedIndexChanged += new System.EventHandler(this.ddlItems_SelectedIndexChanged);
			this.Button1.Click += new System.EventHandler(this.Button1_Click);
			this.Button2.Click += new System.EventHandler(this.Button2_Click);
			this.Button3.Click += new System.EventHandler(this.Button3_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

        
		private void ddlItems_SelectedIndexChanged(object sender, System.EventArgs e)
		{
			SetItemValues();        
		}

		private void ddlSeries_SelectedIndexChanged(object sender, System.EventArgs e)
		{
			SetItems(GetCurrentSeries());            
			SetItemValues();        
		}

		private void Button1_Click(object sender, System.EventArgs e)
		{
			try
			{
				ApplySettings();
				lblIncorrectSettings.Visible = false;
			}
			catch
			{
				lblIncorrectSettings.Visible = true;
			}
		}

		private void ApplySettings()
		{
			ChartSeriesItem item = GetCurrentItem();

			item.YValue = double.Parse(tbValue.Text);
			item.Label = tbLabel.Text;
		}

		private void Button2_Click(object sender, System.EventArgs e)
		{
			ChartSeries series = GetCurrentSeries();

			series.AddItem(double.Parse(tbValue.Text), tbLabel.Text);
		}

		private void Button3_Click(object sender, System.EventArgs e)
		{
			ChartSeries series = GetCurrentSeries();

			if (series.Items.Count > 1)
			{
				series.Items.RemoveAt(ddlItems.SelectedIndex);

				SetControlValues();
			}
		}
			
	}
}