[InvalidOperationException: 可為 Null 的物件必須具有值。]
System.ThrowHelper.ThrowInvalidOperationException(ExceptionResource resource) +60
System.Nullable`1.get_Value() +24
webDBlib.DBPainer_List.Fill(MySqlDataReader reader) in E:\DGMuse\yiseArt\App_Code\DBTable\DBPainer1.cs:754
webDBlib.DBClass.Select(MySqlCommand cmd, myIDataList& list) in E:\DGMuse\yiseArt\App_Code\DBClass.cs:267
webDBlib.DBPainer.SelectUser(String idStr) in E:\DGMuse\yiseArt\App_Code\DBTable\DBPainer2.cs:187
webDBlib.YuanMo2020_artlist.DataLoad(String str) in E:\DGMuse\yiseArt\YuanMo2020\artlist.aspx.cs:88
webDBlib.YuanMo2020_artlist.Page_Load(Object sender, EventArgs e) in E:\DGMuse\yiseArt\YuanMo2020\artlist.aspx.cs:48
System.Web.UI.Control.OnLoad(EventArgs e) +108
System.Web.UI.Control.LoadRecursive() +90
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1533
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