Willy,

>at System.Web.Services.Protocols.SoapHttpClientProtocol.ReadResponse(SoapClientMessage message, WebResponse response, Stream responseStream, Boolean asyncCall)
> at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodName, Object[] parameters)
> at OakLeaf.MM.Main.Web.Services.Proxy.DataWebService.SaveDataSetWithRefresh(DataSet ds, String tableName, Boolean autoUseTransactions, String dataAccessClass, String databaseSetKey, String databaseKey)
> at OakLeaf.MM.Main.Data.mmDataAccessWebServiceHelper.SaveDataSet(mmDataAccessBase dao, DataWebService ws, String dataAccessClass, DataSet ds, String tableName, String primaryKeyName, Boolean retrieveAutoIncrementPK, IDbDataAdapter dbAdapter, Boolean refreshDataSet)
> at OakLeaf.MM.Main.Data.mmDataAccessWebServiceSql.SaveDataSet(DataSet ds, String tableName, String primaryKeyName, Boolean retrieveAutoIncrementPK, IDbDataAdapter dbAdapter)
> at OakLeaf.MM.Main.Business.mmBusinessObject.SaveDataTable(DataSet ds, String tableName, String databaseKey, IDbDataAdapter dbAdapter, Boolean& TransactionStarted)
> at OakLeaf.MM.Main.Business.mmBusinessObjectGeneric`1.SaveEntity(EntityType entity)
> at OakLeaf.MM.Main.Business.mmBusinessObjectGeneric`1.SaveEntity()
> at Target.ESSGantt.WinApp.GanttForm.btnSave_Click(Object sender, EventArgs e) in D:\Data\DevProjects08\ESSGantt02\ESSGanttWinApp\GanttForm.cs:line 229
> at System.Windows.Forms.Control.OnClick(EventArgs e)
> at System.Windows.Forms.Button.OnClick(EventArgs e)
> at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)
> at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
> at System.Windows.Forms.Control.WndProc(Message& m)
> at System.Windows.Forms.ButtonBase.WndProc(Message& m)
> at System.Windows.Forms.Button.WndProc(Message& m)
> at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
> at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
> at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
> at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
> at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(Int32 dwComponentID, Int32 reason, Int32 pvLoopData)
> at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
> at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
> at System.Windows.Forms.Application.Run(Form mainForm)
> at Target.ESSGantt.WinApp.AppMainEntry.Main() in D:\Data\DevProjects08\ESSGantt02\ESSGanttWinApp\Main.cs:line 43

Hmmm....are you able to perform saves with other entities or are they all failing?

Best Regards,