imagebutton.cs

不错的人事管理系统

using System;
using System.Collections;
using System.Collections.Specialized;

namespace System.Web.UI.WebControls
{
	/// <summary>
	/// Summary description for ImageButton.
	/// </summary>
	public class ImageButton : Image,
		System.Web.UI.IPostBackDataHandler,
		 System.Web.UI.IPostBackEventHandler
	{
		private static object EventClick;
		private static object EventCommand;

		private int x;
		private int y;

		static ImageButton() 
		{
			ImageButton.EventClick = new Object();
			ImageButton.EventCommand = new Object();
		}

		public ImageButton() : base()
		{
		}

		protected virtual void AddAttributesToRender(System.Web.UI.HtmlTextWriter writer) 
		{
			Page local0;

			local0 = this.Page;
			if (local0 != null)
				local0.VerifyRenderingInServerForm(this);
			writer.AddAttribute(System.Web.UI.HtmlTextWriterAttribute.Type, "image");
			writer.AddAttribute(System.Web.UI.HtmlTextWriterAttribute.Name, this.UniqueID);
//			if (local0 != null && this.CausesValidation && local0.Validators.Count > 0) 
//			{
//				writer.AddAttribute(System.Web.UI.HtmlTextWriterAttribute.Onclick, System.Web.UI.Util.GetClientValidateEvent(local0));
//				writer.AddAttribute("language", "javascript");
//			}
			this.AddAttributesToRender(writer);
		}

		protected virtual void OnClick(ImageClickEventArgs e) 
		{
			ImageClickEventHandler local0;

			local0 = (ImageClickEventHandler) this.Events[ImageButton.EventClick];
			if (local0 != null)
				local0(this, e);
		}
	
		protected virtual void OnCommand(CommandEventArgs e) 
		{
			CommandEventHandler local0;

			local0 = (CommandEventHandler) this.Events[ImageButton.EventCommand];
			if (local0 != null)
				local0(this, e);
			this.RaiseBubbleEvent(this, e);
		}

		
		protected virtual void OnPreRender(EventArgs e) 
		{
			if (this.Page != null)
				this.Page.RegisterRequiresPostBack(this);
		}

		bool System.Web.UI.IPostBackDataHandler.LoadPostData(string postDataKey, NameValueCollection postCollection) 
		{
			string local0;
			string local1;
			string local2;

			local0 = this.UniqueID;
			local1 = postCollection[local0 + ".x"];
			local2 = postCollection[local0 + ".y"];
			if (local1 != null && local2 != null && local1.Length > 0 && local2.Length > 0) 
			{
				this.x = System.Int32.Parse(local1);
				this.y = System.Int32.Parse(local2);
//				this.Page.RegisterRequiresRaiseEvent(this);
			}
			return false;
		}

		void System.Web.UI.IPostBackDataHandler.RaisePostDataChangedEvent() 
		{
		}

		void System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(string eventArgument) 
		{
			if (this.CausesValidation)
				this.Page.Validate();
			this.OnClick(new ImageClickEventArgs(this.x, this.y));
			this.OnCommand(new CommandEventArgs(this.CommandName, this.CommandArgument));
		}

		public bool CausesValidation
		{
			get
			{
				object local0;

				local0 = this.ViewState["CausesValidation"];
				if (local0 != null)
					return (bool) local0;
				return true;
			}
			set
			{
				this.ViewState["CausesValidation"] = value;
			}
		}


		public string CommandArgument
		{
			get
			{
				string local0;

				local0 = (String) this.ViewState["CommandArgument"];
				if (local0 != null)
					return local0;
				return System.String.Empty;
			}
			set
			{
				this.ViewState["CommandArgument"] = value;
			}
		}

		public string CommandName
		{
			get
			{
				string local0;

				local0 = (String) this.ViewState["CommandName"];
				if (local0 != null)
					return local0;
				return System.String.Empty;
			}
			set
			{
				this.ViewState["CommandName"] = value;
			}
		}

		protected override System.Web.UI.HtmlTextWriterTag TagKey
		{
			get
			{
				return System.Web.UI.HtmlTextWriterTag.Input;
			}
		}

	}
}