public void TextValueEqualExportedText ()
		{
			BaseTextItem bt = new BaseTextItem();
			bt.Text = "Text";
			ExportText bec = (ExportText)bt.CreateExportColumn();
			bec.Text = bt.Text;
		}
		public void ExportColumnIsNotNull ()
		{
			BaseTextItem bt = new BaseTextItem();
			BaseExportColumn bec = bt.CreateExportColumn();
			Assert.IsNotNull(bec);
		}
		public void TypeofExportShouldBeExportText ()
		{
			BaseTextItem bt = new BaseTextItem();
			BaseExportColumn bec = bt.CreateExportColumn();
			Type t = typeof(ExportText);
			Assert.AreEqual(t,bec.GetType(),"Type should be 'ExportText");
		}