Is SaveChanges method supposed to work on a GroupAssign linked viewer Cancel The title field is required!

1. Carl Verbiest

   

   67 posts
   Registered:
   12 Oct 2018
   04 Jan 2019

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   We have a keydownhandler on our form to detect a return key and invoke save changes.
   
   It does this by finding the first container of the activecontrol that has the Consultingwerk.SmartComponents.Interfaces.ISmartTableIOTarget interface , see code snippet at the end of this post.
   
   it then invokes SaveChanges on the oHasSave object.
   This does not work if the viewer containing the activecontrol is a GroupAssign Target .
   
   In that case the savechanges stops on line 3724 of the SmartViewerControl
   

           IF VALID-OBJECT(oSmartGroupAssignSource) THEN
               RETURN.

   
   Is this the way it's supposed to work ?
   I guess the return is there to prevent an endless recursion when the savechanges is called by the groupassign source, but should this also be the case when called directly on the group assign target ?
   
   
   

           /* get extra info about the active control */
           oContainer = this-object . // the form control
           FindControls:
           do while valid-object (oContainer):
               oControl = oContainer:ActiveControl .
               if valid-object (oControl) and type-of (oControl, System.Windows.Forms.ContainerControl)
               then oContainer = cast (oControl, System.Windows.Forms.ContainerControl) .
               else leave FindControls.
   
   ..
               /* get extra info for tableIO */
               if type-of (oControl, Consultingwerk.SmartComponents.Interfaces.ISmartTableIOTarget)
               then oHasSave = cast (oControl, Consultingwerk.SmartComponents.Interfaces.ISmartTableIOTarget).
           end.

   
   

    

   Last modified on 04 Jan 2019 15:01 by Carl Verbiest
2. Mike Fechner

   

   342 posts
   Registered:
   14 Sep 2016
   04 Jan 2019 in reply to Carl Verbiest

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   Hi Carl,
   
   I suggest your code would check the SmartGroupAssignSource property of the viewer too and if that's set call SaveChanges there.
   
   Cheers,
   Mike
3. Carl Verbiest

   

   67 posts
   Registered:
   12 Oct 2018
   04 Jan 2019 in reply to Mike Fechner

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   Hi Mike,
   
   I added following code after the current code.
   
   I tested this and it works but I'm a bit worried about the final cast to Consultingwerk.SmartComponents.Interfaces.ISmartTableIOTarget.
   
   Are there SmartGroupAssignSource's possible that do not implement the ISmartTableIOTarget interface ?
   
   

               do while type-of(oHasSave, Consultingwerk.SmartComponents.Interfaces.ISmartGroupAssignTarget)
                   and valid-object(cast(oHasSave, Consultingwerk.SmartComponents.Interfaces.ISmartGroupAssignTarget):SmartGroupAssignSource)
               :
                       oHasSave = cast(
                           cast(oHasSave, Consultingwerk.SmartComponents.Interfaces.ISmartGroupAssignTarget):SmartGroupAssignSource,
                           Consultingwerk.SmartComponents.Interfaces.ISmartTableIOTarget).
               end.

    
4. Mike Fechner

   

   342 posts
   Registered:
   14 Sep 2016
   04 Jan 2019 in reply to Carl Verbiest

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   It's implemented by the SmartViewerControl and the SmartUpdatableBrowser. So I'm not seeing any issue there.
   
   But to be safe, do a TYPE-OF before the CAST.