protected override void OnMouseDown(MouseEventArgs e)
{
base.OnMouseDown(e);
if (e.Button != MouseButtons.Left)
{
return;
}
int[] columnWidths = ColumnPositioning.CalculateColumnWidths(this.Columns, this.Width, 10, out _, out _);
ColumnPositioning.HitTest(columnWidths, this.GetHScrollValue(), e.X, 5, out int columnIndex, out bool resizeHandle);
if (resizeHandle)
{
this.resizeDragInfo = new ResizeDragInfo(this.Columns[columnIndex], e.X);
}
}
protected override void OnMouseMove(MouseEventArgs e)
{
base.OnMouseMove(e);
if (this.resizeDragInfo.Active)
{
this.Cursor = Cursors.VSplit;
ColumnPositioning.ResizeDrag(this.resizeDragInfo, e.X, 10);
this.RecalculateScrollBar();
return;
}
int[] columnWidths = ColumnPositioning.CalculateColumnWidths(this.Columns, this.Width, 10, out _, out _);
ColumnPositioning.HitTest(columnWidths, this.GetHScrollValue(), e.X, 5, out _, out bool resizeHandle);
this.Cursor = resizeHandle ? Cursors.VSplit : Cursors.Default;
}
