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;
using Telerik.WebControls;

namespace Telerik.ChartExamplesCS.Poll
{
	/// <summary>
	/// Summary description for _Default.
	/// </summary>
	public class DefaultCS: XhtmlPage
	{
		protected Telerik.WebControls.RadChart RadChart1;
		protected System.Web.UI.WebControls.RadioButtonList radioBtnListCarMakes;
		protected System.Web.UI.WebControls.Label Label1;
		protected System.Web.UI.WebControls.RadioButtonList radioButtonsDisplayKind;
		protected System.Web.UI.WebControls.Button Button1;

		private void Page_Load(object sender, System.EventArgs e)
		{
			string[] colors = {"#EB5D2D", "#42AE18", "#FF9C40", "#B99A72", "#9BC0FF", "#98CC88", "#C3B600", "#FFDA43", "#2F89C2", "#F267CD", "#79E364"};

			if (!Page.IsPostBack)
			{				                
				ChartSeries s = RadChart1.GetChartSeries(0);
                
				s.Clear();
				s.DiameterScale		    = 0.40;
				s.ShowLabelConnectors   = false;				
				s.ShowLabels            = true;
				s.LabelAppearance.Distance = 7;				
				s.LabelAppearance.TextFont = new Font("Verdana", 7);
				s.NotOverlapLabels      = true;

				Random r = new Random();

				int i = 0;

				ColorConverter cc = new ColorConverter();

				foreach (ListItem listItem in radioBtnListCarMakes.Items)
				{
					ChartSeriesItem seriesItem = new ChartSeriesItem();

					seriesItem.YValue = 12;
					seriesItem.Label = "#%";
					seriesItem.ItemMap.ToolTip = listItem.Value;
					seriesItem.Appearance.MainColor = (Color) cc.ConvertFromString(colors[i++]);

					seriesItem.Appearance.BorderColor = Color.DimGray;
					seriesItem.Appearance.FillStyle = FillStyle.Solid;

					s.Items.Add(seriesItem);
				}                
			}
		}

		#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.RadChart1.Click += new Telerik.WebControls.RadChart.ChartClickEventHandler(this.RadChart1_Click);
			this.radioBtnListCarMakes.SelectedIndexChanged += new System.EventHandler(this.radioBtnListCarMakes_SelectedIndexChanged);
			this.Button1.Click += new System.EventHandler(this.Button1_Click);
			this.radioButtonsDisplayKind.SelectedIndexChanged += new System.EventHandler(this.RadioButtonList1_SelectedIndexChanged);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void Button1_Click(object sender, System.EventArgs e)
		{
			if (radioBtnListCarMakes.SelectedIndex > -1)
			{
				ChartSeries s = RadChart1.GetChartSeries(0);
			
				ChartSeriesItem item = s[radioBtnListCarMakes.SelectedIndex];

				if (item != null)
				{
					item.YValue = item.YValue + 1;
				}
			}
		}

		private void radioBtnListCarMakes_SelectedIndexChanged(object sender, System.EventArgs e)
		{
			ChartSeries s = RadChart1.GetChartSeries(0);

			if (radioBtnListCarMakes.SelectedIndex > -1)
			{
				foreach (ChartSeriesItem item in s.Items)
				{
					if (s.Items.IndexOf(item) == radioBtnListCarMakes.SelectedIndex)
					{
						item.Exploded = true;
					}
					else
					{
						item.Exploded = false;
					}

				}
			}
		}

		private void RadioButtonList1_SelectedIndexChanged(object sender, System.EventArgs e)
		{
			ChartSeries s = RadChart1.GetChartSeries(0);

			switch (radioButtonsDisplayKind.SelectedIndex)
			{
				case 0:
				{	
					foreach (ChartSeriesItem item in s.Items)
					{
						item.Label = "#%";
					}
					break;
				}
				case 1:
				{
					foreach (ChartSeriesItem item in s.Items)
					{
						item.Label = "#Y";
					}
					break;
				}
			}
		}

		private void RadChart1_Click(object sender, Telerik.WebControls.ChartClickEventArgs args)
		{		
			foreach (ChartSeriesItem item in args.Series.Items)
			{							
				if ((item.Exploded) && (item == args.SeriesItem))
				{
					item.YValue += 1;
				}
				else
				{
					item.Exploded = false;
				}
			}	
		
			if (!args.SeriesItem.Exploded)
				args.SeriesItem.Exploded = true;
		}			
	}
}