Insert() публичный Метод

public Insert ( int index, PropertyDescriptor value ) : void
index int
value PropertyDescriptor
Результат void
        PropertyDescriptorCollection ICustomTypeDescriptor.GetProperties(Attribute[] attributes)
        {
            PropertyDescriptorCollection pdc = new PropertyDescriptorCollection(new PropertyDescriptor[0]);
            foreach (PropertyDescriptor pd in TypeDescriptor.GetProperties(this))
            {
                pdc.Add(pd);
            }

            //put Position property on top
            PropertyDescriptor posd = pdc["pPosition"];
            pdc.Remove(posd);
            pdc.Insert(0, posd);

            foreach (String key in CustomProperties.Keys)
            {
                pdc.Add(new DictionaryPropertyDescriptor(CustomProperties, key, attributes));
            }
            return pdc;
        }
		private void AssertReadOnly (PropertyDescriptorCollection descriptors, string testCase)
		{
			MockPropertyDescriptor mockPropertyDescr = new MockPropertyDescriptor (
				"Date", DateTime.Now);

			try {
				descriptors.Add (mockPropertyDescr);
				Assert.Fail (testCase + "#1");
			} catch (NotSupportedException) {
				// read-only collection cannot be modified
			}

			// ensure read-only check if performed before value is checked
			try {
				descriptors.Add (null);
				Assert.Fail (testCase + "#2");
			} catch (NotSupportedException) {
				// read-only collection cannot be modified
			}

			try {
				descriptors.Clear ();
				Assert.Fail (testCase + "#3");
			} catch (NotSupportedException) {
				// read-only collection cannot be modified
			}

			try {
				descriptors.Insert (0, mockPropertyDescr);
				Assert.Fail (testCase + "#4");
			} catch (NotSupportedException) {
				// read-only collection cannot be modified
			}

			// ensure read-only check if performed before value is checked
			try {
				descriptors.Insert (0, null);
				Assert.Fail (testCase + "#5");
			} catch (NotSupportedException) {
				// read-only collection cannot be modified
			}

			try {
				descriptors.Remove (mockPropertyDescr);
				Assert.Fail (testCase + "#6");
			} catch (NotSupportedException) {
				// read-only collection cannot be modified
			}

			// ensure read-only check if performed before value is checked
			try {
				descriptors.Remove (null);
				Assert.Fail (testCase + "#7");
			} catch (NotSupportedException) {
				// read-only collection cannot be modified
			}

			try {
				descriptors.RemoveAt (0);
				Assert.Fail (testCase + "#8");
			} catch (NotSupportedException) {
				// read-only collection cannot be modified
			}

			IList list = (IList) descriptors;
			Assert.IsTrue (((IList) descriptors).IsReadOnly, testCase + "#9");
			Assert.IsTrue (((IList) descriptors).IsFixedSize, testCase + "#10");

			try {
				list.Add (mockPropertyDescr);
				Assert.Fail (testCase + "#11");
			} catch (NotSupportedException) {
				// read-only collection cannot be modified
			}

			// ensure read-only check if performed before value is checked
			try {
				list.Add (null);
				Assert.Fail (testCase + "#12");
			} catch (NotSupportedException) {
				// read-only collection cannot be modified
			}

			try {
				list.Clear ();
				Assert.Fail (testCase + "#13");
			} catch (NotSupportedException) {
				// read-only collection cannot be modified
			}

			try {
				list.Insert (0, mockPropertyDescr);
				Assert.Fail (testCase + "#14");
			} catch (NotSupportedException) {
				// read-only collection cannot be modified
			}

			// ensure read-only check if performed before value is checked
			try {
				list.Insert (0, null);
				Assert.Fail (testCase + "#15");
			} catch (NotSupportedException) {
				// read-only collection cannot be modified
			}

			try {
				list.Remove (mockPropertyDescr);
				Assert.Fail (testCase + "#16");
			} catch (NotSupportedException) {
				// read-only collection cannot be modified
			}

			// ensure read-only check if performed before value is checked
			try {
				list.Remove (null);
				Assert.Fail (testCase + "#17");
			} catch (NotSupportedException) {
				// read-only collection cannot be modified
			}

			try {
				list.RemoveAt (0);
				Assert.Fail (testCase + "#18");
			} catch (NotSupportedException) {
				// read-only collection cannot be modified
			}

			try {
				list[0] = mockPropertyDescr;
				Assert.Fail (testCase + "#19");
			} catch (NotSupportedException) {
				// read-only collection cannot be modified
			}

			// ensure read-only check if performed before value is checked
			try {
				list[0] = null;
				Assert.Fail (testCase + "#20");
			} catch (NotSupportedException) {
				// read-only collection cannot be modified
			}

			IDictionary dictionary = (IDictionary) descriptors;
			Assert.IsTrue (dictionary.IsReadOnly, testCase + "#21");
			Assert.IsTrue (dictionary.IsFixedSize, testCase + "#22");

			try {
				dictionary.Add ("test", mockPropertyDescr);
				Assert.Fail (testCase + "#23");
			} catch (NotSupportedException) {
				// read-only collection cannot be modified
			}

			// value is checked before read-only check
			try {
				dictionary.Add ("test", null);
				Assert.Fail (testCase + "#24");
			} catch (ArgumentException) {
				// read-only collection cannot be modified
			}

			try {
				dictionary.Clear ();
				Assert.Fail (testCase + "#25");
			} catch (NotSupportedException) {
				// read-only collection cannot be modified
			}

			try {
				dictionary[0] = mockPropertyDescr;
				Assert.Fail (testCase + "#26");
			} catch (NotSupportedException) {
				// read-only collection cannot be modified
			}

			// ensure read-only check if performed before value is checked
			try {
				dictionary[0] = null;
				Assert.Fail (testCase + "#27");
			} catch (NotSupportedException) {
				// read-only collection cannot be modified
			}
		}