System.Data.XmlSchemaDataImporter.IsDataSetElement C# (CSharp) Method

		private bool IsDataSetElement (XmlSchemaElement el)
		{
			if (el.UnhandledAttributes != null) {
				foreach (XmlAttribute attr in el.UnhandledAttributes) {
					if (attr.LocalName == "IsDataSet" &&
						attr.NamespaceURI == XmlConstants.MsdataNamespace) {
						switch (attr.Value) {
						case "true": // case sensitive
							return true;
						case "false":
							break;
						default:
							throw new DataException (String.Format ("Value {0} is invalid for attribute 'IsDataSet'.", attr.Value));
						}
					}
				}
			}

			if (schema.Elements.Count != 1)
				return false;
			if (!(el.SchemaType is XmlSchemaComplexType))
				return false;
			XmlSchemaComplexType ct = (XmlSchemaComplexType) el.SchemaType;
			if (ct.AttributeUses.Count > 0)
				return false;
			XmlSchemaGroupBase gb = ct.ContentTypeParticle as XmlSchemaGroupBase;
			if (gb == null || gb.Items.Count == 0)
				return false;
			foreach (XmlSchemaParticle p in gb.Items) {
				if (ContainsColumn (p))
					return false;
			}
			return true;
		}