System.Data.Common.DataAdapter.FillSchema C# (CSharp) Метод

        protected virtual DataTable FillSchema(DataTable dataTable, SchemaType schemaType, IDataReader dataReader)
        {
            long logScopeId = DataCommonEventSource.Log.EnterScope("<comm.DataAdapter.FillSchema|API> {0}, dataTable, schemaType, dataReader", ObjectID);
            try
            {
                if (null == dataTable)
                {
                    throw ADP.ArgumentNull(nameof(dataTable));
                }
                if ((SchemaType.Source != schemaType) && (SchemaType.Mapped != schemaType))
                {
                    throw ADP.InvalidSchemaType(schemaType);
                }
                if ((null == dataReader) || dataReader.IsClosed)
                {
                    throw ADP.FillRequires(nameof(dataReader));
                }
                // user must Close/Dispose of the dataReader
                // user will have to call NextResult to access remaining results
                object value = FillSchemaFromReader(null, dataTable, schemaType, null, dataReader);
                return (DataTable)value;
            }
            finally
            {
                DataCommonEventSource.Log.ExitScope(logScopeId);
            }
        }