protected override SizeF MeasureOverride(SizeF availableSize)
{
SizeF desiredSize = Size.Empty;
PropertyGridGroupElement visualItem = this.VisualItem as PropertyGridGroupElement;
PropertyGridTableElement propertyGridTableElement = this.PropertyGridTableElement;
if (propertyGridTableElement != null && visualItem != null)
{
PropertyGridGroupItem groupDataItem = visualItem.Data as PropertyGridGroupItem;
if (groupDataItem != null)
{
desiredSize.Width = propertyGridTableElement.ItemIndent;
if (float.IsPositiveInfinity(availableSize.Height))
{
desiredSize.Height = propertyGridTableElement.ItemHeight;
}
else
{
desiredSize.Height = availableSize.Height;
}
}
}
return(desiredSize);
}
public virtual void Synchronize()
{
if (this.VisualItem is PropertyGridItemElement)
{
PropertyGridItemElement visualItem = VisualItem as PropertyGridItemElement;
if (visualItem != null)
{
this.IsExpanded = visualItem.Data.Expanded;
this.IsSelected = visualItem.IsSelected;
PropertyGridItem dataItem = visualItem.Data as PropertyGridItem;
if (dataItem.Expandable)
{
this.expanderItem.Visibility = ElementVisibility.Visible;
}
else
{
this.expanderItem.Visibility = ElementVisibility.Hidden;
}
}
bool isInEditMode = visualItem.IsInEditMode;
if (isInEditMode && visualItem.Data.Level == 0 && visualItem.Data.GridItems.Count > 0)
{
isInEditMode = false;
}
this.SetValue(IsInEditModeProperty, isInEditMode);
}
if (this.VisualItem is PropertyGridGroupElement)
{
PropertyGridGroupElement visualItem = VisualItem as PropertyGridGroupElement;
if (visualItem != null)
{
this.IsExpanded = visualItem.Data.Expanded;
this.IsSelected = visualItem.IsSelected;
PropertyGridGroupItem dataItem = visualItem.Data as PropertyGridGroupItem;
if (dataItem.GridItems.Count == 0)
{
this.expanderItem.Visibility = ElementVisibility.Hidden;
}
else
{
this.expanderItem.Visibility = ElementVisibility.Visible;
}
}
}
this.UpdateSignImage();
}
public override AccessibleObject HitTest(int x, int y)
{
PropertyGridGroupElement elementAtPoint = this.Control.RootElement.ElementTree.GetElementAtPoint(this.Control.PointToClient(new Point(x, y))) as PropertyGridGroupElement;
if (elementAtPoint != null)
{
return((AccessibleObject) new PropertyGridCellAccessibleObject(elementAtPoint.Data.Label, (PropertyGridItemBaseAccessibleObject)this));
}
return(base.HitTest(x, y));
}
protected override SizeF MeasureOverride(SizeF availableSize)
{
SizeF empty = (SizeF)Size.Empty;
PropertyGridGroupElement visualItem = this.VisualItem as PropertyGridGroupElement;
PropertyGridTableElement gridTableElement = this.PropertyGridTableElement;
if (gridTableElement != null && visualItem != null && visualItem.Data is PropertyGridGroupItem)
{
empty.Width = (float)gridTableElement.ItemIndent;
empty.Height = !float.IsPositiveInfinity(availableSize.Height) ? availableSize.Height : (float)gridTableElement.ItemHeight;
}
return(empty);
}
