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.Labels
{
	/// <summary>
	/// Summary description for _Default.
	/// </summary>
	public class DefaultCS: XhtmlPage
	{
					
		protected System.Web.UI.WebControls.Button Button1;
		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.Label Label4;
		protected System.Web.UI.WebControls.Label Label5;
		protected System.Web.UI.WebControls.Label Label6;
		protected System.Web.UI.WebControls.Label Label7;
		protected System.Web.UI.WebControls.Label Label8;
		protected System.Web.UI.WebControls.Label Label9;
		protected System.Web.UI.WebControls.DropDownList ddlLabel;
		protected System.Web.UI.WebControls.TextBox tbText;
		protected System.Web.UI.WebControls.TextBox tbFont;
		protected System.Web.UI.WebControls.DropDownList ddlTextColor;
		protected System.Web.UI.WebControls.DropDownList ddlBorderColor;
		protected System.Web.UI.WebControls.TextBox tbBorderWidth;
		protected System.Web.UI.WebControls.CheckBox cbRoundCorners;
		protected System.Web.UI.WebControls.DropDownList ddlFillStyle;
		protected System.Web.UI.WebControls.TextBox tbRoundSize;
		protected System.Web.UI.WebControls.Label Label10;
		protected System.Web.UI.WebControls.DropDownList ddlBackColor;
		protected System.Web.UI.WebControls.Label lblIncorrectSettings;
		protected Telerik.WebControls.RadChart RadChart1;

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

		private void InitControls()
		{        
			InitControl(ddlBorderColor, typeof(KnownColor));
			InitControl(ddlFillStyle,   typeof(FillStyle));
			InitControl(ddlTextColor,   typeof(KnownColor));
			InitControl(ddlBackColor,   typeof(KnownColor));			
		}

		private void InitControl(DropDownList ddList, Type type)
		{
			string[] valueNames = Enum.GetNames(type);

			ddList.Items.Clear();

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

		private void SetControlValues()
		{
			FontConverter   fc  = new FontConverter();            
			ColorConverter  cc  = new ColorConverter();

			ChartBaseLabel label = GetCurrentLabel();
            
			tbText.Text     = label.Text;
			tbFont.Text     = fc.ConvertToString(label.TextFont);
			SetControlValue(ddlTextColor, label.TextColor.ToKnownColor().ToString());
			SetControlValue(ddlBackColor, label.Background.MainColor.ToKnownColor().ToString());
			SetControlValue(ddlBorderColor, label.Background.BorderColor.ToKnownColor().ToString());            
			tbBorderWidth.Text = label.Background.BorderWidth.ToString();
			if (label.Background.Corners.TopLeft == CornerType.Round)
			{
				cbRoundCorners.Checked = true;
			}
			else
			{
				cbRoundCorners.Checked = false;
			}
			tbRoundSize.Text = label.Background.Corners.RoundSize.ToString();
		}

		private void SetControlValue(DropDownList ddList, string val)
		{
			ListItem listItem;

			listItem = ddList.SelectedItem;
			if (listItem != null)
			{
				listItem.Selected = false;
			}
			listItem = ddList.Items.FindByValue(val);
			if (listItem != null)
			{
				listItem.Selected = true;
			}
		}

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

		}
		#endregion

		private void ValidateInput()
		{
			if ((tbFont.Text == null) || (tbFont.Text == string.Empty))
			{
				tbFont.Text = "Arial; 12pt; style=bold";
			}
		}

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

		private void ApplySettings(ChartBaseLabel label)
		{            
			FontConverter   fc = new FontConverter();
			ColorConverter  cc = new ColorConverter();

			label.Text      = tbText.Text;
			label.TextFont  = (Font) fc.ConvertFromString(tbFont.Text);
			label.TextColor = (Color) cc.ConvertFromString(ddlTextColor.SelectedItem.Value);
			label.Background.MainColor   = (Color) cc.ConvertFromString(ddlBackColor.SelectedItem.Value);            
			label.Background.BorderColor = (Color) cc.ConvertFromString(ddlBorderColor.SelectedItem.Value);
			label.Background.BorderWidth = int.Parse(tbBorderWidth.Text);
			label.Background.FillStyle = FillStyle.Solid;
			if (cbRoundCorners.Checked)
			{
				label.Background.Corners.SetCornersType(CornerType.Round);
			}   
			else
			{
				label.Background.Corners.SetCornersType(CornerType.Rectangle);
			}
			label.Background.Corners.RoundSize = int.Parse(tbRoundSize.Text);
			
			ApplyFillStyle(label);
		}

		private void ApplyFillStyle(ChartBaseLabel label)
		{
			switch (ddlFillStyle.SelectedIndex)
			{
				case 0:
				{                                        
					break;
				}
				case 1:
				{
					label.Background.FillStyle = FillStyle.Gradient;                    
					label.Background.SecondColor = Color.White;
					break;
				}
				case 2:
				{
					label.Background.FillStyle = FillStyle.Hatch;                    
					label.Background.SecondColor = Color.White;
					break;
				}
				case 3:
				{   
					label.Background.FillStyle = FillStyle.Image;
					label.Background.ImageMode = ImageMode.Tile;
					label.Background.ImageUrl = @"texture.jpg";
					break;
				}
			}
		}

		private ChartBaseLabel GetCurrentLabel()
		{
			switch (ddlLabel.SelectedIndex)
			{
				case (0):
				{
					return RadChart1.Title1;
				}
				case (1):
				{
					return RadChart1.XAxis.Label;
				}
				case (2):
				{
					return RadChart1.YAxis.Label;
				}
				case (3):
				{
					return RadChart1.ChartSeriesCollection[0].LabelAppearance;
				}                    
			}
			return null;
		}

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