IDbDataParameter IDbDataParameter IDbDataParameter IDbDataParameter Interface


由 Visual Basic.NET 数据设计器使用,用于表示命令对象的参数和(可选)该参数到 DataSet 列的映射。Used by the Visual Basic .NET Data Designers to represent a parameter to a Command object, and optionally, its mapping to DataSet columns.

public interface class IDbDataParameter : System::Data::IDataParameter
public interface IDbDataParameter : System.Data.IDataParameter
type IDbDataParameter = interface
    interface IDataParameter
Public Interface IDbDataParameter
Implements IDataParameter


DbType DbType DbType DbType

获取或设置参数的 DbTypeGets or sets the DbType of the parameter.

(Inherited from IDataParameter)
Direction Direction Direction Direction

获取或设置一个值,该值指示参数是只可输入的参数、只可输出的参数、双向参数还是存储过程返回值参数。Gets or sets a value indicating whether the parameter is input-only, output-only, bidirectional, or a stored procedure return value parameter.

(Inherited from IDataParameter)
IsNullable IsNullable IsNullable IsNullable

获取一个值,该值指示参数是否接受 null 值。Gets a value indicating whether the parameter accepts null values.

(Inherited from IDataParameter)
ParameterName ParameterName ParameterName ParameterName

获取或设置 IDataParameter 的名称。Gets or sets the name of the IDataParameter.

(Inherited from IDataParameter)
Precision Precision Precision Precision

指示数值参数的精度。Indicates the precision of numeric parameters.

Scale Scale Scale Scale

指示数值参数的比例。Indicates the scale of numeric parameters.

Size Size Size Size

参数的大小。The size of the parameter.

SourceColumn SourceColumn SourceColumn SourceColumn

获取或设置映射到 DataSet 并且用于加载或返回 Value 的源列的名称。Gets or sets the name of the source column that is mapped to the DataSet and used for loading or returning the Value.

(Inherited from IDataParameter)
SourceVersion SourceVersion SourceVersion SourceVersion

获取或设置要在加载 Value 时使用的 DataRowVersionGets or sets the DataRowVersion to use when loading Value.

(Inherited from IDataParameter)
Value Value Value Value

获取或设置参数的值。Gets or sets the value of the parameter.

(Inherited from IDataParameter)