protected override bool BeginMeasure(SizeF availableSize)
{
RadListElement parent = this.Parent as RadListElement;
if (parent != null && parent.AutoSizeItems)
{
this.SuspendThemeRefresh();
bool flag = false;
float num = 0.0f;
if (this.ElementTree != null)
{
DropDownPopupForm control = this.ElementTree.Control as DropDownPopupForm;
if (control != null)
{
num = control.OwnerDropDownListElement.DesiredSize.Width;
}
}
foreach (RadListDataItem data in (IEnumerable <RadListDataItem>)parent.Items)
{
if ((double)this._previousAvailableSize.Width != (double)availableSize.Width || data.measureDirty)
{
float width = (double)availableSize.Width == 0.0 ? num : availableSize.Width;
RadElement radElement = this.UpdateElement(data is DescriptionTextListDataItem ? 1 : 0, data) as RadElement;
if (radElement != null)
{
radElement.InvalidateMeasure(true);
radElement.Measure(parent.FitItemsToSize ? new SizeF(width, float.PositiveInfinity) : LayoutUtils.InfinitySize);
flag |= data.MeasuredSize != radElement.DesiredSize;
data.MeasuredSize = radElement.DesiredSize;
}
}
}
if (flag)
{
parent.Scroller.UpdateScrollRange();
}
this.ResumeThemeRefresh();
}
this._previousAvailableSize = availableSize;
return(base.BeginMeasure(availableSize));
}
public RadDropDownPopupFormAccessibleObject(DropDownPopupForm form)
: base(form)
{
form.OwnerDropDownListElement.ListElement.SelectedIndexChanged += new PositionChangedEventHandler(ListElement_SelectedIndexChanged);
}
public RadDropDownPopupFormAccessibleObject(DropDownPopupForm form)
: base((Control)form)
{
form.OwnerDropDownListElement.ListElement.SelectedIndexChanged += new Telerik.WinControls.UI.Data.PositionChangedEventHandler(this.ListElement_SelectedIndexChanged);
}