DbDataReader.GetFieldType(Int32) DbDataReader.GetFieldType(Int32) DbDataReader.GetFieldType(Int32) DbDataReader.GetFieldType(Int32) Method

定义

在派生类中重写时,获取指定列的数据类型。When overridden in a derived class, gets the data type of the specified column.

public:
 abstract Type ^ GetFieldType(int ordinal);
public abstract Type GetFieldType (int ordinal);
abstract member GetFieldType : int -> Type
Public MustOverride Function GetFieldType (ordinal As Integer) As Type

参数

ordinal
Int32 Int32 Int32 Int32

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

返回

指定列的数据类型。The data type of the specified column.

实现

异常

指定的强制转换无效。The specified cast is not valid.

适用于

另请参阅