[错误信息]: ExecuteReader: CommandText 属性尚未初始化 在 System.Data.SqlClient.SqlCommand.ValidateCommand(String method, Boolean async) 在 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) 在 System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method) 在 System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method) 在 System.Data.SqlClient.SqlCommand.ExecuteDbDataReader(CommandBehavior behavior) 在 System.Data.Common.DbCommand.System.Data.IDbCommand.ExecuteReader(CommandBehavior behavior) 在 System.Data.Common.DbDataAdapter.FillInternal(DataSet dataset, DataTable[] datatables, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior) 在 System.Data.Common.DbDataAdapter.Fill(DataSet dataSet, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior) 在 System.Data.Common.DbDataAdapter.Fill(DataSet dataSet) 在 GmisData.SqlData.ExecuteDataset(SqlConnection connection, CommandType commandType, String commandText, SqlParameter[] commandParameters) 在 GmisData.SqlData.ExecuteDataset(String connectionString, CommandType commandType, String commandText, SqlParameter[] commandParameters) 在 GmisData.SqlData.ExecuteDataset(String connectionString, CommandType commandType, String commandText) 在 Gmis.pygl.pyjhtj_pl.btnxh_Click(Object sender, EventArgs e) 在 System.Web.UI.WebControls.Button.OnClick(EventArgs e) 在 System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) 在 System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) 在 System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) 在 System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) 在 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)[错误页面]: /gmis_nl/pygl/pyjhtj_pl.aspx[执行人]:沈俣