ItemsView

Namespace: WellFired.Guacamole

Implements: WellFired.Guacamole.Views.IItemsView

Inherits: WellFired.Guacamole.Views.ViewWithChildren

Description

This class takes care of the complexities of ItemsView, such as the ListView, here, we take care of ItemSources that may or may not be observable collections. we take the slightly complex notification system from .net and whittle it down into easier to understand methods. (I hope).

Properties

IList ItemSource { get; set; }
DataTemplate ItemTemplate { get; set; }
DataTemplate HeaderTemplate { get; set; }

protected-func

abstract void ItemSourceChanged ( )
abstract void ItemSourceCleared ( )
abstract void ItemAdded ( object item, int index )
abstract void ItemRemoved ( object item )
abstract void ItemReplaced ( object oldItem, object newItem, int index )
object GetItem ( int index )
int GetIndexOf ( object item )
override void OnBindablePropertyChanged ( object sender, PropertyChangedEventArgs e )

Breakdown

  • bool IsItemSourceContiguous

    Description

    This bool will return true if the ItemSource is built from a collection that is sequential, false if it is grouped

  • int ItemSourceCount

    Description

    Returns the count of our ItemSource

  • IList ItemSource { get; set; }

  • abstract void ItemSourceChanged ( )

    Description

    This is called when the whole ItemSource is changed. I.E. ItemSource = new collection();

  • abstract void ItemSourceCleared ( )

    Description

    This is called when the ItemSource is cleared. I.E. ItemSource.Clear(); Note : This is only called if ItemSource is an ObservableCollection.

  • abstract void ItemAdded ( object item, int index )

    Description

    This is called when a new Item is added to the ItemSource. Note : This is only called if ItemSource is an ObservableCollection.

    Parameters

    item The new item
    index The new position this element was added at.

  • abstract void ItemRemoved ( object item )

    Description

    This is called when an item is removed from the ItemSource Note : This is only called if ItemSource is an ObservableCollection.

    Parameters

    item The removed Item

  • abstract void ItemReplaced ( object oldItem, object newItem, int index )

    Description

    This is called when an item is replaced within the ItemSource. Note : This is only called if ItemSource is an ObservableCollection.

    Parameters

    oldItem The item that used to exist
    newItem The new item
    index The index into the ItemSource that you will find this item

  • object GetItem ( int index )

    Description

    This method allows an inheritted view to retrieve an item from the ItemsView’s ItemSource

    Parameters

    index

  • int GetIndexOf ( object item )

    Description

    Returns the index of the specified item in the CompositeCollection

    Parameters

    item
  • override void OnBindablePropertyChanged ( object sender, PropertyChangedEventArgs e )