DatasetController Question Cancel The title field is required!

1. Roger Blanchard

   

   402 posts
   Registered:
   29 Jun 2018
   18 Jun

   Link to this post

   I have a GUI for .NET form with a DatasetController type assigned to the BusinessEntityAdapter.
   
   We have a tool that will allow many fields in the record buffer to be assigned from a template table. I have added a method to the DatasetController to do this and it works just fine. However, how would I get the values assigned to the record buffer into the SmartViewer? 
2. Roger Blanchard

   

   402 posts
   Registered:
   29 Jun 2018
   18 Jun in reply to Roger Blanchard

   Link to this post

   Just a follow up. The user clicks the Update button on the toolbar and then will click a button on the viewer to assign the values from the template table. It would be easier to do this in the DatasetController as we can use buffer-copy.
   
   If this is not possible, we will just assign each individual UI control to the template value. 
   
   TIA.
   
3. Mike Fechner

   

   333 posts
   Registered:
   14 Sep 2016
   18 Jun in reply to Roger Blanchard

   Link to this post

   There is no separate buffer. The DatasetController's default buffer for the temp-table is the buffer that's used for DataBinding.
   
   So to display the updates in the Viewer, call the BindingSource's Refresh() method (no row index). 
   
   https://docs.progress.com/de-DE/bundle/abl-reference/page/Refresh-method-Progress.Data.BindingSource.html#Refresh-method-Progress.Data.BindingSource
4. Roger Blanchard

   

   402 posts
   Registered:
   29 Jun 2018
   18 Jun in reply to Mike Fechner

   Link to this post

   Thanks Mike!!
5. Roger Blanchard

   

   402 posts
   Registered:
   29 Jun 2018
   18 Jun in reply to Mike Fechner

   Link to this post

   So that is working as you said. However, the "Save" tool is not enabled...how do I get the viewer to think a value has been changed so the toolbar is updated accordingly. 
6. Mike Fechner

   

   333 posts
   Registered:
   14 Sep 2016
   18 Jun in reply to Roger Blanchard

   Link to this post

   By calling the viewer's SetModifyingState() method.
7. Roger Blanchard

   

   402 posts
   Registered:
   29 Jun 2018
   18 Jun in reply to Mike Fechner

   Link to this post

   I did that and the grid becomes disabled like when you are updating a record but the save tool is disabled until I manually make a change to a control on the viewer.
   
8. Mike Fechner

   

   333 posts
   Registered:
   14 Sep 2016
   18 Jun in reply to Roger Blanchard

   Link to this post

   That sounds weird!
   
   What's the value of the SmartTableIOState property of the viewer after that? Maybe after an PROCESS EVENTS.?
9. Roger Blanchard

   

   402 posts
   Registered:
   29 Jun 2018
   18 Jun in reply to Mike Fechner

   Link to this post

   The value is ModifyingData. I have tried adding PROCESS EVENTS but same result.
10. Roger Blanchard

    

    402 posts
    Registered:
    29 Jun 2018
    18 Jun in reply to Roger Blanchard

    Link to this post

    This viewer has a GroupAssignSource so I probably have to call into that to call SetModifyingState
11. Mike Fechner

    

    333 posts
    Registered:
    14 Sep 2016
    Answered

    18 Jun in reply to Roger Blanchard

    Link to this post

    That would be a reasonable idea. If that's the case, I do sense an improvement on the horizon though.
12. Roger Blanchard

    

    402 posts
    Registered:
    29 Jun 2018
    18 Jun in reply to Mike Fechner

    Link to this post

    That solved the issue. I have to call SetModifyingState in the Viewer:GroupAssignSource. 
    
    Thanks Mike!!
13. Mike Fechner

    

    333 posts
    Registered:
    14 Sep 2016
    18 Jun in reply to Roger Blanchard

    Link to this post

    Changing the SmartViewerControls SetModifyingState like this seems to resolve this issue:
    
    

        /**
         * Purpose: Sets the TableIOState to ModifyingData
         * Notes:   Useful when modifying Viewer values through custom event handlers
         */
        METHOD PUBLIC VOID SetModifyingState():
            IF VALID-OBJECT (THIS-OBJECT:SmartGroupAssignSource) AND TYPE-OF (THIS-OBJECT:SmartGroupAssignSource, SmartViewerControl) THEN DO:
                CAST (THIS-OBJECT:SmartGroupAssignSource, SmartViewerControl):SetModifyingState() .
                RETURN .
            END.
            IF THIS-OBJECT:SmartTableIOState = TableIOStateEnum:FieldsEnabled THEN DO:
                THIS-OBJECT:SmartTableIOState = TableIOStateEnum:ModifyingData .
                /* Tell the SmartDataSource that the user has started to update data. */
                IF VALID-OBJECT(THIS-OBJECT:SmartDataSource) THEN
                    THIS-OBJECT:SmartDataSource:BeginUpdateState (THIS-OBJECT).
            END.
        END METHOD.

14. Mike Fechner

    

    333 posts
    Registered:
    14 Sep 2016
    18 Jun in reply to Mike Fechner

    Link to this post

    SCL-4507