SqlDataRecord.GetSqlDouble(Int32) 方法

定义

获取序号所指定的列的值,其形式为 SqlDoubleGets the value for the column specified by the ordinal as a SqlDouble.

public:
 virtual System::Data::SqlTypes::SqlDouble GetSqlDouble(int ordinal);
public virtual System.Data.SqlTypes.SqlDouble GetSqlDouble (int ordinal);
abstract member GetSqlDouble : int -> System.Data.SqlTypes.SqlDouble
override this.GetSqlDouble : int -> System.Data.SqlTypes.SqlDouble
Public Overridable Function GetSqlDouble (ordinal As Integer) As SqlDouble

参数

ordinal
Int32

从零开始的列序号。The zero-based ordinal of the column.

返回

SqlDouble 形式的列值。The column value as a SqlDouble.

异常

ordinal 小于 0 或大于列数(即 FieldCount)。The ordinal is less than 0 or greater than the number of columns (that is, FieldCount).

类型不匹配。There is a type mismatch.

适用于