SqlDataReader.GetDateTime(Int32) 方法
定义
public:
override DateTime GetDateTime(int i);
public:
virtual DateTime GetDateTime(int i);
public override DateTime GetDateTime (int i);
public DateTime GetDateTime (int i);
override this.GetDateTime : int -> DateTime
abstract member GetDateTime : int -> DateTime
override this.GetDateTime : int -> DateTime
Public Overrides Function GetDateTime (i As Integer) As DateTime
Public Function GetDateTime (i As Integer) As DateTime
参数
- i
- 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.
实现
例外
指定的强制转换无效。The specified cast is not valid.
注解
不执行任何转换;因此,检索的数据必须已经是 DateTime 对象。No conversions are performed; therefore, the data retrieved must already be a DateTime object.
调用 IsDBNull 以在调用此方法前检查是否有 null 值。Call IsDBNull to check for null values before calling this method.