列名 'Class' 無效。

說明: 執(zhí)行當(dāng)前 Web 請求期間，出現(xiàn)未處理的異常。請檢查堆棧跟蹤信息，以了解有關(guān)該錯誤以及代碼中導(dǎo)致錯誤的出處的詳細(xì)信息。

異常詳細(xì)信息: System.Data.SqlClient.SqlException: 列名 'Class' 無效。

源錯誤:

執(zhí)行當(dāng)前 Web 請求期間生成了未處理的異常。可以使用下面的異常堆棧跟蹤信息確定有關(guān)異常原因和發(fā)生位置的信息。

堆棧跟蹤:

[SqlException (0x80131904): 列名 'Class' 無效。]

System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection) +177

System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +68

System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) +199

System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) +2300

System.Data.SqlClient.SqlDataReader.ConsumeMetaData() +31

System.Data.SqlClient.SqlDataReader.get_MetaData() +62

System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString) +294

System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async) +1021

System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, DbAsyncResult result) +314

System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method) +20

System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method) +107

System.Data.SqlClient.SqlCommand.ExecuteDbDataReader(CommandBehavior behavior) +10

System.Data.Common.DbCommand.System.Data.IDbCommand.ExecuteReader(CommandBehavior behavior) +7

System.Data.Common.DbDataAdapter.FillInternal(DataSet dataset, DataTable[] datatables, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior) +139

System.Data.Common.DbDataAdapter.Fill(DataSet dataSet, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior) +140

System.Data.Common.DbDataAdapter.Fill(DataSet dataSet, String srcTable) +83

System.Web.UI.WebControls.SqlDataSourceView.ExecuteSelect(DataSourceSelectArguments arguments) +1657

System.Web.UI.WebControls.ListControl.OnDataBinding(EventArgs e) +86

System.Web.UI.WebControls.ListControl.PerformSelect() +18

System.Web.UI.WebControls.BaseDataBoundControl.DataBind() +68

System.Web.UI.WebControls.BaseDataBoundControl.EnsureDataBound() +61

System.Web.UI.WebControls.ListControl.OnPreRender(EventArgs e) +26

System.Web.UI.Control.PreRenderRecursiveInternal() +88

System.Web.UI.Control.PreRenderRecursiveInternal() +171

System.Web.UI.Control.PreRenderRecursiveInternal() +171

System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +5729

源代碼

using System;

using System.Data;

using System.Data.SqlClient;

using System.Configuration;

using System.Collections;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Web.UI.HtmlControls;

using Ka.Model;

using Ka.Logic;

public partial class StudentAdd : System.Web.UI.Page

{

protected void Page_Load(object sender, EventArgs e)

{

if (!IsPostBack)

{

/*判斷管理員是否已經(jīng)登陸了系統(tǒng)*/

if (Session["admin"] == null)

{

Response.Write("");

return;

}

}

}

protected void??Btn_Add_Click(object sender, EventArgs e)

{

/*首先建立員工對象的模型并將界面上的信息傳遞給它*/

StudentModel studentModel = new StudentModel();

studentModel.StudentID = this.StudentID.Text;

studentModel.Name = this.Name.Text;

studentModel.Sex = this.Sex.Text;

studentModel.Vocational = this.Vocational.Text;

studentModel.Classname = this.Classname.Text;

studentModel.Stupassword = this.Stupassword.Text;

/*然后調(diào)用業(yè)務(wù)層對員工信息進(jìn)行添加,成功返回true,失敗返回false錯誤信息保存在ErrMessage中*/

StudentLogic studentLogic = new StudentLogic();

if (studentLogic.StudentAdd(studentModel))

Response.Write("");

else

Response.Write("");

}

protected void Btn_Cancle_Click(object sender, EventArgs e)

{

Response.Redirect("StudentAdd.aspx");

}

}

求教各位高手

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