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How to drag and drop the selected rows from grid into MultiColumnTreeView control in WinForms GridGroupingControl?

Platform: WinForms |
Control: GridGroupingControl

Drag and drop

In order to drag and drop the selected rows from GridGroupingControl into MultiColumnTreeView, the TableControlMouseDown event of GridGroupingControl and DragEnter and DragDrop events of MultiColumnTreeView control can be used.

To copy the selected records


//Event Subscription
this.gridGroupingControl1.TableControlMouseDown += gridGroupingControl1_TableControlMouseDown;
//Event Customization
void gridGroupingControl1_TableControlMouseDown(object sender,GridTableControlMouseEventArgs e)
    GridGroupingControl grid = sender as GridGroupingControl;
    if (grid != null)
        GridTableControl tableControl = grid.TableControl;
        Point pt = new Point(e.Inner.X, e.Inner.Y);
        int row, col;
        if (tableControl.PointToRowCol(pt, out row, out col))
            GridTableCellStyleInfo style = tableControl.Model[row, col];
            //checks if the cell in which the MouseDown event is a RecordRowHeaderCell.
            //If yes, then begins the DragDrop operation.
            if ((style.TableCellIdentity.TableCellType == GridTableCellType.RecordRowHeaderCell
                 || style.TableCellIdentity.TableCellType == GridTableCellType.AlternateRecordRowHeaderCell)
                 && style.TableCellIdentity.DisplayElement.ParentRecord != null 
                 && style.TableCellIdentity.DisplayElement.ParentRecord.IsSelected())
                DragDropEffects ef = tableControl.DoDragDrop(new DataObject(grid.Table.SelectedRecords), DragDropEffects.Copy);
                //Adding the Selected records to the temp collection.
                Record[] recordArray = new Record[this.gridGroupingControl1.Table.SelectedRecords.Count];
                this.gridGroupingControl1.Table.SelectedRecords.CopyTo(recordArray, 0);                       
                clonedRecords = recordArray.ToList();
                if (ef == DragDropEffects.Move)
                    //need to delete selection if you want to support this.



'Event Subscription
AddHandler Me.gridGroupingControl1.TableControlMouseDown, AddressOf gridGroupingControl1_TableControlMouseDown
'Event Customization
Private Sub gridGroupingControl1_TableControlMouseDown(ByVal sender As Object, ByVal e As GridTableControlMouseEventArgs)
    Dim grid As GridGroupingControl = TryCast(sender, GridGroupingControl)
    If grid IsNot Nothing Then
        Dim tableControl As GridTableControl = grid.TableControl
        Dim pt As New Point(e.Inner.X, e.Inner.Y)
        Dim row, col As Integer
        If tableControl.PointToRowCol(pt, row, col) Then
            Dim style As GridTableCellStyleInfo = tableControl.Model(row, col)
            'checks if the cell in which the MouseDown event is a RecordRowHeaderCell.
            'If yes, then begins the DragDrop operation.
             If (style.TableCellIdentity.TableCellType = GridTableCellType.RecordRowHeaderCell OrElse style.TableCellIdentity.TableCellType = GridTableCellType.AlternateRecordRowHeaderCell) AndAlso style.TableCellIdentity.DisplayElement.ParentRecord IsNot Nothing AndAlso style.TableCellIdentity.DisplayElement.ParentRecord.IsSelected() Then
                Dim ef As DragDropEffects = tableControl.DoDragDrop(New DataObject(grid.Table.SelectedRecords), DragDropEffects.Copy)
                'Adding the Selected records to the temp collection.
                Dim recordArray(Me.gridGroupingControl1.Table.SelectedRecords.Count - 1) As Record
                Me.gridGroupingControl1.Table.SelectedRecords.CopyTo(recordArray, 0)
                clonedRecords = recordArray.ToList()
                 If ef = DragDropEffects.Move Then
                     'need to delete selection if you want to support this.
                 End If
          End If
        End If
    End If
End Sub


To perform the drag operation


//Event Subscription
this.multiColumnTreeView1.DragDrop += multiColumnTreeView1_DragDrop;
  //Event customization
  void multiColumnTreeView1_DragDrop(object sender, DragEventArgs e)
      SelectedRecordsCollection recs = e.Data.GetData(typeof(SelectedRecordsCollection)) as SelectedRecordsCollection;
      if (recs != null)
          TreeColumnAdvCollection collection  = this.multiColumnTreeView1.Columns;
          Syncfusion.Windows.Forms.Tools.MultiColumnTreeView.TreeNodeAdv[] item = new Syncfusion.Windows.Forms.Tools.MultiColumnTreeView.TreeNodeAdv[collection.Count];
          TreeNodeAdvSubItem[] subItems =new TreeNodeAdvSubItem[collection.Count];
          foreach (SelectedRecord record in recs)
              Record rec = record.Record;
              for (int i = 0; i < collection.Count; i++)
                  string name = collection[i].Text;
                  if (i == 0)
                      item[i] = new Syncfusion.Windows.Forms.Tools.MultiColumnTreeView.TreeNodeAdv();
                      item[i].Text = rec[name].ToString();
                      item[i].HelpText = rec[name].ToString();
                  else if (i > 0)
                      subItems[i] = new TreeNodeAdvSubItem();
                      subItems[i].Text = rec[name].ToString();
                      subItems[i].HelpText = rec[name].ToString();



'Event Subscription
AddHandler Me.multiColumnTreeView1.DragDrop, AddressOf multiColumnTreeView1_DragDrop
'Event customization
Private Sub multiColumnTreeView1_DragDrop(ByVal sender As Object, ByVal e As DragEventArgs)
    Dim recs As SelectedRecordsCollection = TryCast(e.Data.GetData(GetType(SelectedRecordsCollection)), 
    If recs IsNot Nothing Then
        Dim collection As TreeColumnAdvCollection = Me.multiColumnTreeView1.Columns
        Dim item(collection.Count - 1) As Syncfusion.Windows.Forms.Tools.MultiColumnTreeView.TreeNodeAdv
        Dim subItems(collection.Count - 1) As TreeNodeAdvSubItem
        For Each record As SelectedRecord In recs
            Dim rec As Record = record.Record
            For i As Integer = 0 To collection.Count - 1
                Dim name As String = collection(i).Text
                If i = 0 Then
                    item(i) = New Syncfusion.Windows.Forms.Tools.MultiColumnTreeView.TreeNodeAdv()
                    item(i).Text = rec(name).ToString()
                    item(i).HelpText = rec(name).ToString()
                ElseIf i > 0 Then
                    subItems(i) = New TreeNodeAdvSubItem()
                    subItems(i).Text = rec(name).ToString()
                    subItems(i).HelpText = rec(name).ToString()
                End If
            Next i
        Next record
    End If
End Sub


To copy the selected records




//Event Subscription
this.multiColumnTreeView1.DragEnter += multiColumnTreeView1_DragEnter;
//Event Customization
void multiColumnTreeView1_DragEnter(object sender, DragEventArgs e)
    if (e.Data.GetDataPresent(typeof(SelectedRecordsCollection)))
        e.Effect = DragDropEffects.Copy;
        e.Effect = DragDropEffects.None;




'Event Subscription
AddHandler Me.multiColumnTreeView1.DragEnter, AddressOf multiColumnTreeView1_DragEnter
'Event Customization
Private Sub multiColumnTreeView1_DragEnter(ByVal sender As Object, ByVal e As DragEventArgs)
    If e.Data.GetDataPresent(GetType(SelectedRecordsCollection)) Then
        e.Effect = DragDropEffects.Copy
        e.Effect = DragDropEffects.None
    End If
End Sub



Drag and drop the selected rows from grid to MultiColumnTreeView


C#: Drag_Drop_CS

VB: Drag_Drop_VB

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