webform1.aspx.cs

ajax下拉列表框做的无刷新省市联动

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 System.Data.SqlClient;
using AjaxPro;

namespace dropdown
{
	/// <summary>
	/// WebForm1 的摘要说明。
	/// </summary>
	public class WebForm1 : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.DropDownList Brand1;
		protected System.Web.UI.WebControls.DropDownList Models;
		protected System.Web.UI.WebControls.TextBox txtcity;
		protected System.Web.UI.WebControls.Button Button2;
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			// 在此处放置用户代码以初始化页面
			AjaxPro.Utility.RegisterTypeForAjax(typeof(AjaxMethod));
			if (!Page.IsPostBack)
			{
				Brand1.DataSource = AjaxMethod.getlist();
				Brand1.DataTextField = "province";
				Brand1.DataValueField = "id";
				Brand1.DataBind();
				Brand1.Attributes.Add("onload", "cityresult();");
				Brand1.Attributes.Add("onclick", "cityresult();");
			}
		}

		#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.Button2.Click += new System.EventHandler(this.Button2_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void Button2_Click(object sender, System.EventArgs e)
		{
		}
	}
}