使用 Gridview asp.net 从 SQL Server 读取数据

Question

我正在尝试将表中的数据读取到数据网格视图中。 这些数据需要从 gridview 中的网页进行编辑。 它返回一个我未能解决的可怕错误。 异常详细信息：System.Data.SqlClient.SqlException：'nvarchar' 附近的语法不正确。

必须声明标量变量“@P_C_ID”。

源错误：

执行当前 Web 请求期间生成了未处理的异常。 可以使用下面的异常堆栈跟踪来识别有关异常来源和位置的信息。

堆栈跟踪：

[SqlException (0x80131904): 'nvarchar' 附近的语法不正确。 必须声明标量变量“@P_C_ID”。] System.Data.SqlClient.SqlConnection.OnError(SqlException 异常, Boolean breakConnection, Action 1 wrapCloseInAction) +2555722 System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action 1 wrapCloseInAction) +5958412 System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose) +285 System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, TdsParserdCoReader , Boolean& dataReady) +4169 System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString, Boolean isInternal, Boolean forDescribeParameterEncryption, Boolean shouldCacheForAlwaysEncrypted) +255 System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehaviorcmd)运行行为或者，Boolean returnStream, Boolean async, Int32 timeout, Task& task, Boolean asyncWrite, Boolean inRetry, SqlDataReader ds, Boolean describeParameterEncryptionRequest) +2598 System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, TaskCompletionSource 1 completion, Int32 timeout, Task& task, Boolean& usedCache, Boolean asyncWrite, Boolean inRetry) +1483 System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(TaskCompletionSource 1 完成、String methodName、Boolean sendToPipe、Int32 超时、Boolean&usedCache、Boolean async、Write Boolean inRetry) +374 System.Data.SqlClient.SqlCommand.ExecuteNonQuery() +286 System.Web.UI.WebControls.SqlDataSourceView.ExecuteDbCommand(DbCommand 命令，DataSourceOperation 操作) +392 System.Web.UI.WebControls.SqlDataSourceView.ExecuteUpdate( IDictionary 键、IDictionary 值、IDictionary oldValues) +670 System.Web.UI.DataSourceView.Update(IDictionary keys, IDi 操作值，IDictionary oldValues，DataSourceViewOperationCallback 回调) +106 System.Web.UI.WebControls.GridView.HandleUpdate(GridViewRow row, Int32 rowIndex, Boolean causeValidation) +1210 System.Web.UI.WebControls.GridView.HandleEvent(EventArgs e, Boolean原因验证，字符串验证组）+877 System.Web.UI.WebControls.GridView.OnBubbleEvent（对象源，EventArgs e）+89 System.Web.UI.Control.RaiseBubbleEvent（对象源，EventArgs args）+37 System.Web.UI .WebControls.GridViewRow.OnBubbleEvent(Object source, EventArgs e) +90 System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +37 System.Web.UI.WebControls.LinkBut​​ton.OnCommand(CommandEventArgs e) +121 System.Web.UI.WebControls.LinkBut​​ton.RaisePostBackEvent(String eventArgument) +161 System.Web.UI.WebControls.LinkBut​​ton.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +12 System.Web.UI.Page。 RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +1 5 System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +9884018 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1639

当我单击编辑按钮并且要执行的查询是 UpdateCommand="UPDATE [Performance_Rating_2] SET [STRATEGIC OBJECTIVE] = @STRATEGIC_OBJECTIVE, [INITIATIVE AND ACTION] = @INITIATIVE_AND_ACTION, [MEASURE] = @MEASURE, [目标] = @TARGET，[重量前半部分] = @WEIGHT_FIRST_HALF，[重量第二部分] = @WEIGHT_SECOND_HALF，[评分前半部分] = @RATING_FIRST_HALF，[得分前半部分] = @SCORE_FIRST_HALF COND , [SCORE SECOND HALF] = @SCORE_SECOND_HALF, [EVIDENCE FIRST_HALF] = @EVIDENCE_FIRST_HALF, [EVIDENCE SECOND HALF] = @EVIDENCE_SECOND_HALF, [RESPONSIBLE_PERSON] = @RESPONSIBLE_PERSON WHERE] = @P_C_ID

Answer 1

这是因为在 sql server 内部执行的查询的语法是错误的。 它通常是由于您的错误输入而发生的。 请提供提出问题的代码部分以获得有效的解决方案。