EntityDataReader.GetDouble(Int32) 方法

定义

获取作为双精度浮点数的指定列的值。Gets the value of the specified column as a double-precision floating point number.

public:
 override double GetDouble(int ordinal);
public override double GetDouble (int ordinal);
override this.GetDouble : int -> double
Public Overrides Function GetDouble (ordinal As Integer) As Double

参数

ordinal
Int32

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

返回

Double

指定列的值。The value of the specified column.

实现

适用于