/// <summary> /// 读取指定类型数据 /// </summary> /// <param name="row">数据行</param> /// <param name="columns">列集合</param> /// <param name="columnName">列名称</param> /// <param name="dbType">数据类型</param> /// <returns>指定类型数据</returns> protected Object LoadValue(DataRow row, DataColumnCollection columns, String columnName, DbType dbType) { if (columns.Contains(columnName) && !Convert.IsDBNull(row[columnName])) { return(DbConvert.ToValue(row[columnName], dbType)); } else { return(DbConvert.GetDefaultValue(dbType)); } }
/// <summary> /// 读取指定类型数据 /// </summary> /// <param name="args">对象创建参数</param> /// <param name="columnName">列名称</param> /// <param name="dataType">数据类型</param> /// <returns>指定类型数据</returns> protected Object LoadValue(EntityCreatingArgs args, String columnName, DataType dataType) { if (args.Columns.Contains(columnName) && !DbConvert.IsDBNull(args.Row[columnName])) { return(DbConvert.ToValue(args.Row[columnName], dataType)); } else { return(DbConvert.GetDefaultValue(dataType)); } }