DatasetController Question Cancel The title field is required!

1. Roger Blanchard

   

   413 posts
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   29 Jun 2018
   18 Jun

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   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

   

   413 posts
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   29 Jun 2018
   18 Jun in reply to Roger Blanchard

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   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

   

   342 posts
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   14 Sep 2016
   18 Jun in reply to Roger Blanchard

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   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

   

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   18 Jun in reply to Mike Fechner

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   Thanks Mike!!
5. Roger Blanchard

   

   413 posts
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   18 Jun in reply to Mike Fechner

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   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

   

   342 posts
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   14 Sep 2016
   18 Jun in reply to Roger Blanchard

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

   

   413 posts
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   18 Jun in reply to Mike Fechner

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   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

   

   342 posts
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   18 Jun in reply to Roger Blanchard

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

   

   413 posts
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   18 Jun in reply to Mike Fechner

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

    

    413 posts
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    18 Jun in reply to Roger Blanchard

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

    

    342 posts
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    14 Sep 2016
    Answered

    18 Jun in reply to Roger Blanchard

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

    

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    18 Jun in reply to Mike Fechner

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

    

    342 posts
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    14 Sep 2016
    18 Jun in reply to Roger Blanchard

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    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

    

    342 posts
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    14 Sep 2016
    18 Jun in reply to Mike Fechner

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    SCL-4507