列名 'isLock' 无效。
说明: 执行当前 Web 请求期间，出现未处理的异常。请检查堆栈跟踪信息，以了解有关该错误以及代码中导致错误的出处的详细信息。
异常详细信息: System.Data.SqlClient.SqlException: 列名 'isLock' 无效。
堆栈跟踪:
[SqlException (0x80131904): 列名 'isLock' 无效。]
System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection) +1950890
System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +4846875
System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) +194
System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) +2392
System.Data.SqlClient.SqlDataReader.ConsumeMetaData() +33
System.Data.SqlClient.SqlDataReader.get_MetaData() +83
System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString) +297
System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async) +954
System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, DbAsyncResult result) +162
System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method) +32
System.Data.SqlClient.SqlCommand.ExecuteScalar() +139
源代码：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using WgCms.BLL;
using WgCms.Model;
public partial class Admin_Login : System.Web.UI.Page
{
WgCms.BLL.Admin bll = new WgCms.BLL.Admin();
protected void Page_Load(object sender, EventArgs e)
{
}
protected void loginsubmit_Click(object sender, ImageClickEventArgs e)
{
string UserName = txtUserName.Text.Trim();
string UserPwd = txtUserPwd.Text.Trim();
string validateCode = string.Empty;
if (Session["ValidateCode"] == null)
{
lbMsg.Text = "你在登陆页面停留的时间过长，验证码已失效！";
}
else
{
validateCode = Session["ValidateCode"].ToString();
}
if (UserName.Equals("") || UserPwd.Equals(""))
{
lbMsg.Text = "请输入您要登录用户名或密码";
}
else
{
#region 记录登录次数
if (Session["AdminLoginSun"] == null)
{
Session["AdminLoginSun"] = 1;
}
else
{
Session["AdminLoginSun"] = Convert.ToInt32(Session["AdminLoginSun"]) + 1;
}
#endregion
//判断登录
if (Session["AdminLoginSun"] != null && Convert.ToInt32(Session["AdminLoginSun"]) > 3)
{
lbMsg.Text = "登录错误超过3次，请关闭浏览器重新登录。";
Session["AdminLoginSun"] = 1;
}