## Add(*[CustomXmlPart](../../customxmlpart/)*) {#add_1} يضيف عنصرًا إلى المجموعة. ```csharp public void Add(CustomXmlPart part) ``` | معامل | يكتب | وصف | | --- | --- | --- | | part | CustomXmlPar......GetEnumerator()) { int index = 0; while (enumerator.MoveNext())...Console.WriteLine($"XML part index {index}, ID: {enumerator.Current...