private void OnGroupHeaderTap(GroupHeaderContext context)
{
if (this.CanCollapseGroups)
{
context.IsExpanded = !context.IsExpanded;
}
}
public void PrepareContainerForItem(GeneratedItemModel element)
{
var loadDataControl = element.Container as ListViewLoadDataControl;
if (loadDataControl != null)
{
loadDataControl.Owner = this.owner;
if (this.owner != null)
{
this.owner.PrepareLoadDataControl(loadDataControl);
}
this.owner.visualStateService.RegisterDataLoadingListener(loadDataControl);
}
var reorderItem = element.Container as IReorderItem;
if (reorderItem != null)
{
reorderItem.LogicalIndex = element.ItemInfo.Id;
}
var listItem = element.Container as RadListViewItem;
if (listItem != null)
{
listItem.Orientation = this.owner.Orientation;
this.owner.PrepareContainerForItem(listItem, element.ItemInfo.Item);
listItem.PrepareSwipeDragHandles();
this.owner.PrepareReorderItem(listItem);
}
var groupHeader = element.Container as ListViewGroupHeader;
if (groupHeader != null && this.owner.GroupDescriptors.Count > element.ItemInfo.Level)
{
groupHeader.Owner = this.owner;
var context = new GroupHeaderContext()
{
Level = element.ItemInfo.Level,
Descriptor = this.owner.GroupDescriptors[element.ItemInfo.Level],
Group = element.ItemInfo.Item as IDataGroup,
IsExpanded = !element.ItemInfo.IsCollapsed,
Owner = this.owner
};
if (groupHeader.IsFrozen)
{
// We assume that no more that 20 GroupDescriptions will be added.
// If needed this number can be increased.
Canvas.SetZIndex(groupHeader, MaxGroupCount - element.ItemInfo.Level);
}
groupHeader.IsExpanded = context.IsExpanded;
this.owner.PrepareContainerForGroupHeader(groupHeader, context);
this.owner.PrepareReorderItem(groupHeader);
}
}
public object Convert(object value, Type targetType, object parameter, string language)
{
GroupHeaderContext context = value as GroupHeaderContext;
var currentGroup = context.Group;
var grid = context.Grid;
var currentView = grid.GetDataView();
return(String.Format("The total sum is : {0}", currentView.GetAggregateValue(0, currentGroup)));
}
protected override DataTemplate SelectTemplateCore(object item, DependencyObject container)
{
GroupHeaderContext context = item as GroupHeaderContext;
if (context.Level == 1)
{
return(this.RegionTemplate);
}
return(this.CountryTemplate);
}
protected override DataTemplate SelectTemplateCore(object item, DependencyObject container)
{
GroupHeaderContext context = item as GroupHeaderContext;
var propertyDescriptor = context.Descriptor as PropertyGroupDescriptor;
if (propertyDescriptor.PropertyName == "OrderId")
{
return(this.SalesOrderTemplate);
}
return(this.Template);
}
public object Convert(object value, Type targetType, object parameter, string language)
{
GroupHeaderContext context = value as GroupHeaderContext;
if (context == null)
{
return(value);
}
var person = context.Group.ChildItems[0] as SalesPerson;
return(string.Format(this.FormatString, person.TerritorySalesYTD));
}
public override DataGridStyle SelectStyle(object item, BindableObject container)
{
GroupHeaderContext header = item as GroupHeaderContext;
if (header != null)
{
if (header.Group.Key == "India")
{
return(CountryTemplate1);
}
else
{
return(CountryTemplate2);
}
}
return(null);
}
public object Convert(object value, Type targetType, object parameter, string language)
{
GroupHeaderContext context = value as GroupHeaderContext;
if (context == null)
{
return(value);
}
var person = context.Group.ChildItems[0] as SalesPerson;
if (person.TerritorySalesYTD > person.TerritorySalesLastYear)
{
return(this.UpTemplate);
}
return(this.DownTemplate);
}
