本文實例為大家分享了.net后臺頁面統一驗證是否登錄的具體代碼，供大家參考，具體內容如下
首先新寫一個PageBase類
using System;using System.Collections.Generic;using System.Web;namespace DepartmentMIS.Web.myclass{ public class PageBase : System.Web.UI.Page { public PageBase() { this.Load += new EventHandler(BasePage_Load); } private void BasePage_Load(object sender, EventArgs e) { if (Session["UserNo"] == null || Session["UserNo"].ToString() == "") { Response.Redirect("~/Login.aspx"); } } }}Login頁面后臺部分代碼
protected void btnLogin_Click(object sender, EventArgs e) { if (rblRole.SelectedValue == "1") { DataSet ds = AdminBLL.GetList("userName = '" + tbxUserName.Text.Trim() + "' and password = '" + tbxPassword.Text.Trim()+"' and isDeleted = 0"); if (ds.Tables[0].Rows.Count == 1) { int id = Convert.ToInt32(ds.Tables[0].Rows[0]["id"]); Session["UserNo"] = ds.Tables[0].Rows[0]["id"]; Session["UserName"] = ds.Tables[0].Rows[0]["userName"]; Response.Redirect("admin/adminIndex.aspx"); } else { Response.Write("<script>alert('用戶名或密碼錯誤！')</script>"); } } if (rblRole.SelectedValue == "2") { DataSet ds = StuBLL.GetList("stuNo = '" + tbxUserName.Text.Trim() + "' and password = '" + tbxPassword.Text.Trim() + "' and isDeleted = 0"); if (ds.Tables[0].Rows.Count == 1) { int id = Convert.ToInt32(ds.Tables[0].Rows[0]["id"]); Session["UserNo"] = ds.Tables[0].Rows[0]["id"]; Session["UserName"] = ds.Tables[0].Rows[0]["stuName"]; Response.Redirect("student/stusIndex.aspx"); } else { Response.Write("<script>alert('用戶名或密碼錯誤！')</script>"); } }以stuWishChoices頁面為例，繼承PageBase類
using System.Web.UI.WebControls.WebParts;using System.Data.SqlClient;using System.Collections;namespace cbmis.ProDocumentMng{ public partial class DocumentList : BasePage //繼承 { protected void Page_Load(object sender, EventArgs e) { } } }}以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支持VeVb武林網。
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