GUI for .NET DragAndDrop Samples Cancel The title field is required!

1. Roger Blanchard

   

   413 posts
   Registered:
   29 Jun 2018
   13 Dec 2019

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   Does anyone have any examples of using DragAndDrop from one UltraGrid to another?
2. Roger Blanchard

   

   413 posts
   Registered:
   29 Jun 2018
   14 Dec 2019 in reply to Roger Blanchard

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   I ended up using the SelectionDrag event of the grid I wanted to copy rows from and calling DoDragDrop to capture the selectedrows of the grid.
   
   DO ON ERROR UNDO, THROW:
     
      THIS-OBJECT:PriceBrowser:DoDragDrop(THIS-OBJECT:PriceBrowser:Selected:Rows,
                                             DragDropEffects:Copy
                                             ).
                                         
      CATCH eError AS Progress.Lang.Error:
       LogManagerWrapper:WriteError(eError).
      END CATCH. 
     
     END. 
   
   I then use DragDrop event on the grid I want to copy the selectedrows to process the selectedrows. I loop through the rows collection and then use the DatasetModel class to create records if necessary. This seems to work but I am thinking I should create a TT to contain the info I need to create the DB records and then send it to the server for processing using a business task. This way I only have one call to the server.
   
   DO ON ERROR UNDO, THROW:
      
      oSelRows = CAST(CAST(e:Data,
                              System.Windows.Forms.IDataObject):GetData(Progress.Util.TypeHelper:GetType('Infragistics.Win.UltraWinGrid.SelectedRowsCollection')),
                         Infragistics.Win.UltraWinGrid.SelectedRowsCollection
                         ).
                        
      IF NOT VALID-OBJECT (oSelRows) THEN
       RETURN.
   
   END.
   
   
   
3. Mike Fechner

   

   343 posts
   Registered:
   14 Sep 2016
   15 Dec 2019 in reply to Roger Blanchard

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   I personally prefer not to use the actual grid rows (SelectedRows collection) as the payload of the D&D operation. This would create a tight dependency between the implementation of the sender and recipient. 
   
   In the SmartFunctionMaintenanceForm we're using a .NET generic dictionary with a map of field names and field values.
   
   You can use any type that inherits from System.Object as the payload for a drag and drop operation. 
   
   

       METHOD PRIVATE VOID smartDataBrowser1_MouseDown (sender AS System.Object,
                                                        e      AS System.Windows.Forms.MouseEventArgs):
   
           DEFINE VARIABLE oUIElement  AS Infragistics.Win.UIElement    NO-UNDO .
           DEFINE VARIABLE oDictionary AS "Dictionary<String,String>":U NO-UNDO .
   
           /* Find out if the RowSelect is being clicked, don't do D&D when clicking a cell */
           oUIElement = smartDataBrowser1:DisplayLayout:UIElement:ElementFromPoint (e:Location) .
   
           IF TYPE-OF (oUIElement, Infragistics.Win.UltraWinGrid.RowSelectorUIElement)
              AND smartDataBrowser1:Selected:Rows:Count > 0 THEN DO:
               oDictionary = NEW "Dictionary<String,String>":U ().
   
               oDictionary:Add ("eSmartFunction.FunctionGuid":U, FunctionAdapter:GetFieldValues("FunctionGuid":U)).
               oDictionary:Add ("eSmartFunction.FunctionName":U, FunctionAdapter:GetFieldValues("FunctionName":U)).
               oDictionary:Add ("eSmartFunction.FunctionSmallImage":U, FunctionAdapter:GetFieldValues("FunctionSmallImage":U)).
               oDictionary:Add ("eSmartFunction.FunctionLargeImage":U, FunctionAdapter:GetFieldValues("FunctionLargeImage":U)).
   
               smartDataBrowser1:DoDragDrop (oDictionary, System.Windows.Forms.DragDropEffects:Link).
           END.
   
           CATCH err AS Progress.Lang.Error:
               ErrorHelper:ShowErrorMessage (err) .
           END CATCH.
   
       END METHOD .

4. Roger Blanchard

   

   413 posts
   Registered:
   29 Jun 2018
   16 Dec 2019 in reply to Mike Fechner

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   I will take a look at this. Thanks for the pointer.