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.Borders
{
	/// <summary>
	/// Summary description for _Default.
	/// </summary>
	public class DefaultCS: XhtmlPage
	{					
		protected System.Web.UI.WebControls.Label Label2;
		protected System.Web.UI.WebControls.DropDownList ddlChartElement;
		protected System.Web.UI.WebControls.Label Label1;        
		protected System.Web.UI.WebControls.Label Label3;        
		protected System.Web.UI.WebControls.Label Label4;        
		protected System.Web.UI.WebControls.Label Label5;
		protected System.Web.UI.WebControls.DropDownList ddlBorderColor;
		protected System.Web.UI.WebControls.TextBox txtBoxBorderWidth;
		protected System.Web.UI.WebControls.CheckBox cbTopLeft;
		protected System.Web.UI.WebControls.CheckBox cbTopRight;
		protected System.Web.UI.WebControls.CheckBox cbBottomLeft;
		protected System.Web.UI.WebControls.CheckBox cbBottomRight;
		protected System.Web.UI.WebControls.TextBox txtBoxRoundSize;
		protected System.Web.UI.WebControls.RangeValidator RangeValidator1;
		protected System.Web.UI.WebControls.RangeValidator RangeValidator2;
		protected Telerik.WebControls.RadChart RadChart1;
		protected System.Web.UI.WebControls.Button Button1;

		private System.Collections.Hashtable chartElementsHash;
		protected System.Web.UI.WebControls.Label lblIncorrectSettings;

		string[] keyNames = { "Background", "Plot area", "Title", "Legend", "Series 1", "Series 2", "Item 1", "Item 2" };

		private void BuildHashTable()
		{
			chartElementsHash  = new System.Collections.Hashtable();
			chartElementsHash.Add(keyNames[0], RadChart1.Background);
			chartElementsHash.Add(keyNames[1], RadChart1.PlotArea);
			chartElementsHash.Add(keyNames[2], RadChart1.Title1.Background);
			chartElementsHash.Add(keyNames[3], RadChart1.Legend.Background);
			chartElementsHash.Add(keyNames[4], RadChart1.GetChartSeries(0).Appearance);
			chartElementsHash.Add(keyNames[5], RadChart1.GetChartSeries(1).Appearance);
			chartElementsHash.Add(keyNames[6], RadChart1.GetChartSeries(0).Items[0].Appearance);
			chartElementsHash.Add(keyNames[7], RadChart1.GetChartSeries(1).Items[0].Appearance);            
		}

		private void Page_Load(object sender, System.EventArgs e)
		{
			BuildHashTable();
            
			if (!Page.IsPostBack)
			{
				InitControls();
				
				RadChart1.ChartSeriesCollection[0].Items[0].Appearance.CopyFrom(RadChart1.ChartSeriesCollection[0].Appearance);
				RadChart1.ChartSeriesCollection[1].Items[0].Appearance.CopyFrom(RadChart1.ChartSeriesCollection[1].Appearance);

				SetControlValues();
                                               
			}
			
		}

		private void InitControls()
		{
			string[] valueNames;
            
			valueNames = Enum.GetNames(typeof(KnownColor));

			ddlBorderColor.Items.Clear();
            
			foreach (string s in valueNames)
			{
				ddlBorderColor.Items.Add(s);                
			}

			ddlChartElement.Items.Clear();

			foreach (string s in keyNames)
			{
				ddlChartElement.Items.Add(s);
			}
            
		}   
            
		private void SetControlValues()
		{
            
			ChartRectShape appearance = GetCurrentAppearance(false);
            
			if (appearance != null)
			{
				ddlBorderColor.SelectedIndex    = ddlBorderColor.Items.IndexOf(ddlBorderColor.Items.FindByText(appearance.BorderColor.ToKnownColor().ToString()));
				txtBoxBorderWidth.Text  = appearance.BorderWidth.ToString();
				txtBoxRoundSize.Text    = appearance.Corners.RoundSize.ToString();
				cbTopLeft.Checked       = appearance.Corners.TopLeft     == CornerType.Round;
				cbTopRight.Checked      = appearance.Corners.TopRight    == CornerType.Round;
				cbBottomLeft.Checked    = appearance.Corners.BottomLeft  == CornerType.Round;
				cbBottomRight.Checked   = appearance.Corners.BottomRight == CornerType.Round;
                
			}            
		}

		private CornerType GetCornerType(bool isRound)
		{
			if (isRound)
			{
				return CornerType.Round;
			}
			else
			{
				return CornerType.Rectangle;
			}
		}

		private void SetAppearance(ChartRectShape appearance)
		{
			appearance.BorderColor         = Color.FromName(ddlBorderColor.SelectedItem.Value);

			try
			{
				appearance.BorderWidth         = int.Parse(txtBoxBorderWidth.Text);
			}
			catch
			{
				txtBoxBorderWidth.Text = "Invalid width.";
			}

			try
			{
				appearance.Corners.RoundSize   = int.Parse(txtBoxRoundSize.Text);                        
			}
			catch
			{
				txtBoxRoundSize.Text = "Invalid size.";
			}

			appearance.Corners.TopLeft     = GetCornerType(cbTopLeft.Checked);
			appearance.Corners.TopRight    = GetCornerType(cbTopRight.Checked);            
			appearance.Corners.BottomLeft  = GetCornerType(cbBottomLeft.Checked);            
			appearance.Corners.BottomRight = GetCornerType(cbBottomRight.Checked);
		}
                
		private void Button1_Click(object sender, System.EventArgs e)
		{            
			try
			{
				SetAppearance(GetCurrentAppearance(true));
				lblIncorrectSettings.Visible = false;
			}
			catch
			{
				lblIncorrectSettings.Visible = true;
			}
		}

		private ChartRectShape GetCurrentAppearance(bool changeItemAppearance)
		{   
			if (changeItemAppearance)
			{
				if (ddlChartElement.SelectedIndex == 4)
				{
					SetAppearance((ChartRectShape) chartElementsHash[keyNames[6]]);
				}

				if (ddlChartElement.SelectedIndex == 5)
				{
					SetAppearance((ChartRectShape) chartElementsHash[keyNames[7]]);
				}
			}

			return (ChartRectShape) chartElementsHash[ddlChartElement.SelectedItem.Value];
		}
                

		#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.ddlChartElement.SelectedIndexChanged += new System.EventHandler(this.ddlChartElement_SelectedIndexChanged);
			this.Button1.Click += new System.EventHandler(this.Button1_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void ddlChartElement_SelectedIndexChanged(object sender, System.EventArgs e)
		{
			SetControlValues();
		}			
	}
}