pwdmodifymodule.ascx.cs

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namespace KhfwWeb.Modules
{
	using System;
	using System.Data;
	using System.Data.SqlClient;
	using System.Configuration;
	using System.Drawing;
	using System.Web;
	using System.Web.UI.WebControls;
	using System.Web.UI.HtmlControls;

	/// <summary>
	///		PwdModifyModule 的摘要说明。
	/// </summary>
	public class PwdModifyModule :ModuleBase
	{
		protected System.Web.UI.WebControls.Label UserNameLabel;
		protected System.Web.UI.WebControls.TextBox OldPwdTextBox;
		protected System.Web.UI.WebControls.RequiredFieldValidator OldPwdRequiredFieldValidator;
		protected System.Web.UI.WebControls.CustomValidator ValidateCustomValidator;
		protected System.Web.UI.WebControls.TextBox NewPwdTextBox;
		protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator1;
		protected System.Web.UI.WebControls.CompareValidator CompareValidator1;
		protected System.Web.UI.WebControls.TextBox ConfirmPwdTextBox;
		protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator2;
		protected System.Web.UI.WebControls.CompareValidator CompareValidator2;
		protected System.Web.UI.WebControls.ValidationSummary LogonValidationSummary;
		protected System.Web.UI.WebControls.Button ModifyButton;
		protected System.Web.UI.WebControls.Label ShowMsg;

		private void Page_Load(object sender, System.EventArgs e)
		{
			UserNameLabel.Text=Request.QueryString["UserName"].ToString();
		}

		//验证原密码是否正确
		public void IsPwdValidate(object source, System.Web.UI.WebControls.ServerValidateEventArgs args)
		{
			//从文件Web.config中读取连接字符串
			string sqldb= ConfigurationSettings.AppSettings["ConnectionString"];
			//连接JdglSys数据库
			SqlConnection Conn= new SqlConnection (sqldb);
			Conn.Open ();
			//构造SQL语句，该语句在UsersInfo表中检查密码是否正确
			string checksql= "select * from UsersInfo where Name='"+UserNameLabel.Text.Trim() +"'and Password='"+OldPwdTextBox.Text.Trim()+"'";
			//创建Command对象
			SqlCommand mycommand=new SqlCommand  (checksql,Conn);
			//执行ExecuteReader ()方法
			SqlDataReader dr=mycommand.ExecuteReader ();
			if(dr.Read ())
			{
				args.IsValid =true;//密码正确
			}
			else
			{
				args.IsValid =false;//密码不正确
			}
			//关闭连接
			Conn.Close();
		}
		#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.ModifyButton.Click += new System.EventHandler(this.ModifyButton_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void ModifyButton_Click(object sender, System.EventArgs e)
		{
			if(Page.IsValid)
			{
				//修改密码
				//从文件Web.config中读取连接字符串
				string sqldb = ConfigurationSettings.AppSettings["ConnectionString"];
				//连接JdglSys数据库
				SqlConnection Conn = new SqlConnection (sqldb);
				Conn.Open ();
				//定义sql语句
				String updatesql="update UsersInfo set Password= @Password where Name = @Name";
				//利用Command对象调用updatesql
				SqlCommand mycommand=new SqlCommand (updatesql,Conn);
				//添加参数
				mycommand.Parameters .Add ("@Name",SqlDbType.VarChar);
				mycommand.Parameters .Add ("@Password",SqlDbType.VarChar);
				//给存储过程的参数赋值
				mycommand.Parameters ["@Name"].Value =UserNameLabel.Text;
				mycommand.Parameters ["@Password"].Value =NewPwdTextBox.Text.Trim();
				try
				{
					mycommand.ExecuteNonQuery();
					ShowMsg.Text="密码修改成功,请注销后验证新密码";
					ShowMsg.Style["color"]="green";}
				catch(SqlException error)
				{
					ShowMsg.Text="密码修改未成功，请稍后再试。原因："+error.Message;
					ShowMsg.Style["color"]="red";
				}
				//关闭连接
				Conn.Close();
			}
		}
	}
}