userreg.aspx.cs

来自「数字图书馆网站」· CS 代码 · 共 109 行

using System;
using System.Configuration;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Data.SqlClient;
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 DigitalLibrary
{
	/// <summary>
	/// Summary description for UserReg.
	/// </summary>
	public class UserReg : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.TextBox txtLoginID;
		protected System.Web.UI.WebControls.Panel pnlLogin;
		protected System.Web.UI.WebControls.Label lblTitle;
		protected System.Web.UI.WebControls.Label lblMessage;
		protected System.Web.UI.WebControls.Image imgImage;
		protected System.Web.UI.WebControls.Table tblInfo;
		protected System.Web.UI.HtmlControls.HtmlInputText txtPassword;
		protected System.Web.UI.HtmlControls.HtmlInputText txtConfirmPassword;
		protected System.Web.UI.WebControls.RequiredFieldValidator rfvLogin;
		protected System.Web.UI.WebControls.RequiredFieldValidator rfvPassword;
		protected System.Web.UI.WebControls.RequiredFieldValidator rfvConfirmPassword;
		protected System.Web.UI.WebControls.CustomValidator cvPassword;
		protected System.Web.UI.WebControls.CompareValidator cmvPassword;
		protected System.Web.UI.WebControls.CustomValidator cvLogin;
		protected System.Web.UI.WebControls.Button btnUsers;
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			// Put user code to initialize the page here
		}

		#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.btnUsers.Click += new System.EventHandler(this.btnUsers_Click);
			this.cvLogin.ServerValidate += new System.Web.UI.WebControls.ServerValidateEventHandler(this.cvLogin_ServerValidate);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void btnUsers_Click(object sender, System.EventArgs e)
		{
			if (Page.IsValid)
			{
				if (this.btnUsers.Text == "创建登录")
				{
					SqlConnection objConnection = new SqlConnection(ConfigurationSettings.AppSettings["DataBaseConnection"]);
					SqlDataAdapter objAdapter = new SqlDataAdapter("SELECT * FROM Users WHERE LoginID = '" + this.txtLoginID.Text + "'",objConnection);
					DataSet objDataSet = new DataSet();
					objAdapter.Fill(objDataSet,"CheckUser");
					if (objDataSet.Tables["CheckUser"].Rows.Count > 0)
					{
						this.lblMessage.Text = "ID 已存在!!! 请选择其他 ID!";
						this.lblMessage.Visible=true;
						this.txtLoginID.Text="";
						this.txtPassword.Value="";
						this.txtConfirmPassword.Value="";
					}
					else
					{
						SqlCommand objCommand = new SqlCommand("INSERT INTO Users Values ('"+txtLoginID.Text+"','"+txtPassword.Value+"')",objConnection);
						objConnection.Open();
						objCommand.ExecuteNonQuery();
						objConnection.Close();
						this.lblMessage.Text = "登录名已创建!!! 请键入密码并单击“登录”以登录此网站!";
						this.lblMessage.Visible=true;
						this.btnUsers.Text="登录";
						this.txtConfirmPassword.Visible=false;
					}
				}
				else
				{
					Session["Login"]=this.txtLoginID.Text;
					Response.Redirect("Library.aspx");
				}
			}
		}

		private void cvLogin_ServerValidate(object source, System.Web.UI.WebControls.ServerValidateEventArgs args)
		{
			args.IsValid = (args.Value.Length <= 8);
		}
	}
}