public int Compare(object x, object y)
{
OutlookGridRow obj1 = (OutlookGridRow)x;
OutlookGridRow obj2 = (OutlookGridRow)y;
return(string.Compare(obj1.Cells[this.columnIndex].Value.ToString(), obj2.Cells[this.columnIndex].Value.ToString()) * (direction == ListSortDirection.Ascending ? 1 : -1));
}
// the OnCellMouseDown is overriden so the control can check to see if the
// user clicked the + or - sign of the group-row
protected override void OnCellMouseDown(DataGridViewCellMouseEventArgs e)
{
if (e.RowIndex < 0)
{
return;
}
OutlookGridRow row = (OutlookGridRow)base.Rows[e.RowIndex];
if (row.IsGroupRow && row.IsIconHit(e))
{
System.Diagnostics.Debug.WriteLine("OnCellMouseDown " + DateTime.Now.Ticks.ToString());
row.Group.Collapsed = !row.Group.Collapsed;
//this is a workaround to make the grid re-calculate it's contents and backgroun bounds
// so the background is updated correctly.
// this will also invalidate the control, so it will redraw itself
row.Visible = false;
row.Visible = true;
}
else
{
base.OnCellMouseDown(e);
}
}
protected override void OnCellBeginEdit(DataGridViewCellCancelEventArgs e)
{
OutlookGridRow row = (OutlookGridRow)base.Rows[e.RowIndex];
if (row.IsGroupRow)
{
e.Cancel = true;
}
else
{
base.OnCellBeginEdit(e);
}
}
protected override void OnCellDoubleClick(DataGridViewCellEventArgs e)
{
if (e.RowIndex >= 0)
{
OutlookGridRow row = (OutlookGridRow)base.Rows[e.RowIndex];
if (row.IsGroupRow)
{
row.Group.Collapsed = !row.Group.Collapsed;
//this is a workaround to make the grid re-calculate it's contents and backgroun bounds
// so the background is updated correctly.
// this will also invalidate the control, so it will redraw itself
row.Visible = false;
row.Visible = true;
return;
}
}
base.OnCellClick(e);
}