UpdateColumnsBehaviourColumns - свойство

public IEnumerable<TessaGridColumnViewModel> Columns { get; set; }

Public Property Columns As IEnumerable(Of TessaGridColumnViewModel)
	Get
	Set

public:
property IEnumerable<TessaGridColumnViewModel^>^ Columns {
	IEnumerable<TessaGridColumnViewModel^>^ get ();
	void set (IEnumerable<TessaGridColumnViewModel^>^ value);
}

member Columns : IEnumerable<TessaGridColumnViewModel> with get, set