SqlDataReader.GetInt32(Int32) 方法
定义
获取指定列的 32 位带符号整数形式的值。Gets the value of the specified column as a 32-bit signed integer.
public:
override int GetInt32(int i);
public:
virtual int GetInt32(int i);
public override int GetInt32 (int i);
public int GetInt32 (int i);
override this.GetInt32 : int -> int
abstract member GetInt32 : int -> int
override this.GetInt32 : int -> int
Public Overrides Function GetInt32 (i As Integer) As Integer
Public Function GetInt32 (i As Integer) As Integer
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32位有符号整数。No conversions are performed; therefore, the data retrieved must already be a 32-bit signed integer.
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.