Ignore column and row headers and first row (currCell.Value != null & prevCell.Value != null &Ĭ() = ()))ĭataGridViewAdvancedCellBorderStyle.None Private bool IsRepeatedCellValue(int rowIndex, int colIndex) If (IsRepeatedCellValue(args.RowIndex, args.ColumnIndex)) Protected override void OnCellFormatting(ĭataGridViewCellFormattingEventArgs args) The unmentioned idea is a class extending the DataGridView class.
DATAGRIDVIEW GROUP ROWS FULL
If the drag operation was a move then remove and insert the row.ĭataGridViewRow rowToMove = e.Data.GetData(typeof(DataGridViewRow)) as DataGridViewRow ĭ(rowIndexFromMouseDown) ĭ supplement the (chosen) answer, here's the full code. RowIndexOfItemUnderMouseToDrop = dataGridView1.HitTest(clientPoint.X, clientPoint.Y).RowIndex Get the row index of the item the mouse is below. Point clientPoint = dataGridView1.PointToClient(new Point(e.X, e.Y)) The mouse locations are relative to the screen, so they must be Private void dataGridView1_DragDrop(object sender, DragEventArgs e) Private void dataGridView1_DragOver(object sender, DragEventArgs e)
It gives you number of properties, methods and events to customize its appearance and behavior. Not the answer youre looking for Browse other questions tagged c winforms datagridview or ask your own question. Reset the rectangle if the mouse is not over an item in the ListBox. The unmentioned idea is a class extending the DataGridView class.
Create a rectangle using the DragSize, with the mouse position being The optional plus/minus buttons inside group rows are used to collapse/expand them. Both approaches imply that group rows are added to the grid, and they can be nested to each other meaning lower position in hierarchy.
DATAGRIDVIEW GROUP ROWS MANUAL
Size dragSize = SystemInformation.DragSize 10Tec WinForms grid control provides you with 2 ways of row grouping - automatic row grouping and manual group row creation. before a drag event should be started. The DragSize indicates the size that the mouse can move Remember the point where the mouse down occurred. RowIndexFromMouseDown = dataGridView1.HitTest(e.X, e.Y).RowIndex Get the index of the item the mouse is below. Private void dataGridView1_MouseDown(object sender, MouseEventArgs e) Proceed with the drag and drop, passing in the list item.ĭragDropEffects dropEffect = dataGridView1.DoDragDrop(ĭataGridView1.Rows, !dragBoxFromMouseDown.Contains(e.X, e.Y)) End users can tap group rows to expand and collapse groups. If (dragBoxFromMouseDown != Rectangle.Empty & When data is grouped, the grid displays group rows to separate groups of data rows. If the mouse moves outside the rectangle, start the drag. If ((e.Button & MouseButtons.Left) = MouseButtons.Left) Private void dataGridView1_MouseMove(object sender, MouseEventArgs e) Private int rowIndexOfItemUnderMouseToDrop Also, the necessary events need to be hooked up to the appropriate event handlers. In order to make this example to work you need to have a DataGridView control added to your form with a name dataGridView1 and AllowDrop property of the DataGridView set to "true".
DATAGRIDVIEW GROUP ROWS CODE
However, here is the code that you use in the future in your projects in order to implement rows reordering with drag and drop.
The DataGridView controls doesn't have enabled drag and drop reordering rows by default.
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