protected override void CreateChildElements()
{
base.CreateChildElements();
this.checkedItems = new DropDownCheckedItemsCollection(this);
RadCheckedListDataItemCollection dataItemCollection = new RadCheckedListDataItemCollection(this, this.ListElement.DataLayer, this.ListElement);
this.checkAllItem = new CheckAllDataItem("Check All", this);
this.checkAllItem.Owner = this.ListElement;
this.ListElement.DataLayer.Items = (RadListDataItemCollection)dataItemCollection;
this.ListElement.Items = (IList <RadListDataItem>)dataItemCollection;
this.checkedItemTraverser = new CheckedItemTraverser((IList <RadListDataItem>)dataItemCollection, this.checkAllItem, this.ShowCheckAllItems);
this.ListElement.ViewElement.DataProvider = (IEnumerable)this.checkedItemTraverser;
this.ListElement.Scroller.Traverser = (ITraverser <RadListDataItem>) this.checkedItemTraverser;
this.ListElement.SelectionMode = SelectionMode.One;
this.ListElement.DataLayer.DataView.CollectionChanged += new NotifyCollectionChangedEventHandler(this.DataView_CollectionChanged);
this.autoCompleteEditableAreaElement.AutoCompleteTextBox.AutoCompleteDataSource = (object)dataItemCollection;
this.autoCompleteEditableAreaElement.AutoCompleteTextBox.AutoCompleteMode = AutoCompleteMode.SuggestAppend;
this.ListElement.ViewElement.ElementProvider = (IVirtualizedElementProvider <RadListDataItem>) new CheckedDropDownListElementProvider(this.ListElement);
this.WireAutoCompleteEvents();
this.Children[2].MinSize = new Size(0, 18);
}
protected override Size GetPopupSize(RadPopupControlBase popup, bool measure)
{
RadSizablePopupControl sizablePopupControl = popup as RadSizablePopupControl;
int num1 = this.listElement.Items.Count;
CheckedItemTraverser traverser = this.listElement.Scroller.Traverser as CheckedItemTraverser;
if (traverser != null && traverser.CheckAll)
{
++num1;
}
if (num1 > this.defaultItemsCountInDropDown || num1 == 0)
{
num1 = this.defaultItemsCountInDropDown;
}
if (num1 > this.maxDropDownItems && this.maxDropDownItems > 0)
{
num1 = this.maxDropDownItems;
}
int num2 = 0;
if (sizablePopupControl.SizingGrip.Visibility == ElementVisibility.Visible)
{
RadElement sizingGrip = (RadElement)sizablePopupControl.SizingGrip;
num2 = new Rectangle(sizingGrip.BoundingRectangle.Location, Size.Add(sizingGrip.BoundingRectangle.Size, sizingGrip.Margin.Size)).Height;
}
int num3 = 0;
if (!this.listElement.AutoSizeItems)
{
int num4 = this.listElement.ItemHeight;
for (int index = 0; index < num1 && index < this.listElement.Items.Count; ++index)
{
if (this.listElement.Items[index] is DescriptionTextListDataItem || this.listElement.IsDescriptionText)
{
num4 *= 2;
break;
}
}
if (this.ListElement.DpiScaleFactor != this.Popup.OwnerElement.DpiScaleFactor)
{
num4 = TelerikDpiHelper.ScaleInt(num4, this.Popup.OwnerElement.DpiScaleFactor);
}
int height = num1 * (num4 + this.listElement.Scroller.ItemSpacing) + num2 + (int)((double)this.listElement.BorderWidth * 2.0);
if (this.DropDownHeight != 106)
{
height = this.DropDownHeight;
}
return(new Size(this.Size.Width, height));
}
int height1;
if (this.listElement.Items.Count > 0)
{
for (int index = 0; index < num1 && index < this.listElement.Items.Count; ++index)
{
num3 += (int)this.listElement.Items[index].MeasuredSize.Height + this.listElement.Scroller.ItemSpacing;
}
height1 = num3 + this.listElement.Scroller.ItemSpacing + num2 + this.listElement.HScrollBar.Size.Height + (int)((double)this.listElement.BorderWidth * 2.0);
}
else
{
height1 = num1 * (this.listElement.ItemHeight + this.listElement.Scroller.ItemSpacing) + num2 + (int)((double)this.listElement.BorderWidth * 2.0);
}
if (this.DropDownHeight != 106)
{
height1 = this.DropDownHeight;
}
return(new Size(this.Size.Width, height1));
}