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