private void ObjectListView_DeviceList_HeaderCheckBoxChanging(object sender, HeaderCheckBoxChangingEventArgs e)
{
ObjectListView olv = sender as ObjectListView;
CheckState newState = e.NewCheckState;
if (newState == CheckState.Checked)
{
// suppress message box
_suppressErrorMessage = true;
if (olv.Objects != null)
{
olv.CheckAll();
}
_suppressErrorMessage = false;
}
else if (newState == CheckState.Unchecked)
{
if (olv.Objects != null && olv.CheckedObjects.Count > 0)
{
olv.UncheckAll();
}
}
}
/// <summary>
///
/// </summary>
/// <param name="args"></param>
protected virtual void OnHeaderCheckBoxChanging(HeaderCheckBoxChangingEventArgs args)
{
if (this.HeaderCheckBoxChanging != null)
this.HeaderCheckBoxChanging(this, args);
}
private void ChangeHeaderCheckBoxState(OLVColumn column, CheckState newState)
{
// Tell the world the checkbox was clicked
HeaderCheckBoxChangingEventArgs args = new HeaderCheckBoxChangingEventArgs();
args.Column = column;
args.NewCheckState = newState;
this.OnHeaderCheckBoxChanging(args);
if (args.Cancel || column.HeaderCheckState == args.NewCheckState)
return;
Stopwatch sw = Stopwatch.StartNew();
column.HeaderCheckState = args.NewCheckState;
this.HeaderControl.Invalidate(column);
if (column.HeaderCheckBoxUpdatesRowCheckBoxes) {
if (column.Index == 0)
this.UpdateAllPrimaryCheckBoxes(column);
else
this.UpdateAllSubItemCheckBoxes(column);
}
Debug.WriteLine(String.Format("PERF - Changing row checkboxes on {2} objects took {0}ms / {1} ticks", sw.ElapsedMilliseconds, sw.ElapsedTicks, this.GetItemCount()));
}
private void ObjectListView_TeamFoldersMembers_HeaderCheckBoxChanging(object sender, HeaderCheckBoxChangingEventArgs e)
{
ObjectListView olv = sender as ObjectListView;
CheckState newState = e.NewCheckState;
if (newState == CheckState.Checked)
{
olv.CheckAll();
}
else if (newState == CheckState.Unchecked)
{
olv.UncheckAll();
}
}