System.Data.XSDSchema.BuildKey C# (CSharp) Method

        internal DataColumn[] BuildKey(XmlSchemaIdentityConstraint keyNode, DataTable table)
        {
            ArrayList keyColumns = new ArrayList();

            foreach (XmlSchemaXPath node in keyNode.Fields)
            {
                keyColumns.Add(FindField(table, node.XPath));
            }

            DataColumn[] key = new DataColumn[keyColumns.Count];
            keyColumns.CopyTo(key, 0);

            return key;
        }