grouplisttest.aspx.cs

ASP中web自定义控件的使用源码及说明文档

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 Bestcomy.Web.UI.WebControls;

namespace WebControlTest
{
	/// <summary>
	/// GroupListTest 的摘要说明。
	/// </summary>
	public class GroupListTest : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.Button Button1;
		protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator1;
		protected Bestcomy.Web.UI.WebControls.GroupList Grouplist2;
		protected Bestcomy.Web.UI.WebControls.GroupList Grouplist3;
		protected Bestcomy.Web.UI.WebControls.GroupList GroupList1;
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			if(!IsPostBack)
			{
				for(int i=1; i < 4; i++)
				{
					GroupItem gItem = new GroupItem("Group_"+i.ToString());
					for(int j=1; j < 6; j++)
					{
						GroupListItem item = new GroupListItem(gItem.Label + "_Item_" + j.ToString());
						gItem.Items.Add(item);
					}
					GroupList1.GroupItems.Add(gItem);
				}

				DataTable dt = new DataTable();
				dt.Columns.Add("group",	typeof(string));
				dt.Columns.Add("text",	typeof(string));
				dt.Columns.Add("value",	typeof(string));

				for(int i=0; i < 10; i++)
				{
					DataRow ndr = dt.NewRow();
					ndr["group"] = "Group_" + ((int)(i%2)+1).ToString();
					ndr["text"] = "Text_" + ((int)(i+1)).ToString();
					ndr["value"] = "value_" + ((int)(i+1)).ToString();
					dt.Rows.Add(ndr);
				}

				this.Grouplist2.DataGroupField = "group";
				this.Grouplist2.DataTextField = "text";
				this.Grouplist2.DataValueField = "value";
				this.Grouplist2.DataSource = dt.DefaultView;
				this.Grouplist2.DataBind();
			}
		}

		#region Web 窗体设计器生成的代码
		override protected void OnInit(EventArgs e)
		{
			//
			// CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
			//
			InitializeComponent();
			base.OnInit(e);
		}
		
		/// <summary>
		/// 设计器支持所需的方法 - 不要使用代码编辑器修改
		/// 此方法的内容。
		/// </summary>
		private void InitializeComponent()
		{    
			this.GroupList1.SelectedIndexChanged += new System.EventHandler(this.GroupList1_SelectedIndexChanged);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void GroupList1_SelectedIndexChanged(object sender, System.EventArgs e)
		{
			Response.Write(this.GroupList1.SelectedItem.Value);
		}
	}
}