webform1.aspx.cs

来自「dropdownlist的三级联动小示例。」· CS 代码 · 共 60 行

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;
namespace AjaxTest
{
	/// <summary>
	/// Summary description for WebForm1.
	/// </summary>
	public class WebForm1 : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.DropDownList DropDownList1;
		protected System.Web.UI.WebControls.DropDownList DropDownList2;
		protected System.Web.UI.WebControls.TextBox TextBox1;
		protected System.Web.UI.WebControls.DropDownList DropDownList3;
	
		private void Page_Load(object sender, System.EventArgs e)
		{	
			Ajax.Utility.RegisterTypeForAjax(typeof(AjaxMethod));
			if(!Page.IsPostBack)
			{
				this.DropDownList1.DataSource=AjaxMethod.GetPovinceList();
				this.DropDownList1.DataTextField="province";
				this.DropDownList1.DataValueField="provinceID";
				this.DropDownList1.DataBind();
				
				this.DropDownList1.Attributes.Add("onclick","cityResult();");
				this.DropDownList2.Attributes.Add("onclick","areaResult();");
			}
		}

		#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);
		}
		
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{    
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion		
	}
}