private void MethodParametersGrid_DragDrop(object sender, DragEventArgs e)
{
var clientPoint = MethodParametersGrid.PointToClient(new Point(e.X, e.Y));
if (e.Effect == DragDropEffects.Move && _newRowIndex != -1)
{
var rowIndexOfItemUnderMouse = MethodParametersGrid.HitTest(clientPoint.X, clientPoint.Y).RowIndex;
if (rowIndexOfItemUnderMouse < 0)
{
if (clientPoint.Y < _startPoint.Y)
{
rowIndexOfItemUnderMouse = 0;
}
else
{
rowIndexOfItemUnderMouse = Parameters.Count - 1;
}
}
var tmp = Parameters.ElementAt(_newRowIndex);
Parameters.RemoveAt(_newRowIndex);
Parameters.Insert(rowIndexOfItemUnderMouse, tmp);
ReselectParameter();
}
}
private void ReselectParameter()
{
MethodParametersGrid.Refresh();
MethodParametersGrid.Rows
.Cast <DataGridViewRow>()
.Single(row => row.DataBoundItem == _selectedItem).Selected = true;
SelectionChanged();
}
private void MethodParametersGrid_MouseMove(object sender, MouseEventArgs e)
{
if ((e.Button & MouseButtons.Left) == MouseButtons.Left &&
_dragBoxFromMouseDown != Rectangle.Empty && !_dragBoxFromMouseDown.Contains(e.X, e.Y))
{
var dropEffect = MethodParametersGrid.DoDragDrop(
MethodParametersGrid.Rows[_newRowIndex],
DragDropEffects.Move);
}
}
private void MethodParametersGrid_MouseDown(object sender, MouseEventArgs e)
{
_newRowIndex = MethodParametersGrid.HitTest(e.X, e.Y).RowIndex;
if (_newRowIndex == -1)
{
_dragBoxFromMouseDown = Rectangle.Empty;
return;
}
_startPoint = new Point(e.X, e.Y);
AdjustDragRectangle(e, SystemInformation.DragSize);
}
