public static void ItemIndexDecrement <T>(this NotifiableCollection <T> collection, T item, int count = 1)
{
if (collection != null)
{
collection.Move(collection.IndexOf(item), count);
}
}
public ColumnManager(IAccount account, NotifiableCollection <ColumnBase> allColumns)
{
this._account = account;
this._allColumns = allColumns;
this._columns = new List <ColumnBase>(10);
this.ResetColumns(this._columns);
this._allColumns.CollectionChanged += this.OnCollectionChanged;
}
public ColumnRemoveCommand() : base(true)
{
this._columns = App.Columns;
}
public static bool CanItemIndexIncrement <T>(this NotifiableCollection <T> collection, T item, int downCount = 1)
{
return(collection.CanItemIndexIncrement(collection.IndexOf(item), downCount));
}
public static bool CanItemIndexIncrement <T>(this NotifiableCollection <T> collection, int currentIndex, int downCount = 1)
{
return(MathEx.IsWithin(currentIndex, 0, collection.Count - (1 + downCount)));
}
public static void ItemIndexIncrement <T>(this NotifiableCollection <T> collection, T item, int count = 1)
{
collection.ItemIndexIncrement(collection.IndexOf(item), count);
}
public static void ItemIndexIncrement <T>(this NotifiableCollection <T> collection, int oldIndex, int count = 1)
{
collection.Move(oldIndex, oldIndex + count);
}
public static bool CanItemIndexDecrement <T>(this NotifiableCollection <T> collection, int currentIndex, int count)
{
return(MathEx.IsWithin(currentIndex, count, collection.Count - 1));
}
public ColumnMoveLeftCommand() : base(true)
{
this._columns = App.Columns;
this._columns.CollectionChanged += this.ColumnsChanged;
}