System.Xml.DTDReader.AddContentModel C# (CSharp) Method

		private void AddContentModel (DTDContentModelCollection cmc, DTDContentModel cm)
		{
			if (cm.ElementName != null) {
				for (int i = 0; i < cmc.Count; i++) {
					if (cmc [i].ElementName == cm.ElementName) {
						HandleError (new XmlSchemaException ("Element content must be unique inside mixed content model.",
							this.LineNumber,
							this.LinePosition,
							null,
							this.BaseURI,
							null));
						return;
					}
				}
			}
			cmc.Add (cm);
		}