SqlCeParameter 构造函数 (String, SqlDbType, Int32, ParameterDirection, Boolean, Byte, Byte, String, DataRowVersion, Object)

使用参数名称、数据类型、长度、参数方向和其他属性初始化 SqlCeParameter 类的一个新实例。SQL Server Compact 只支持输入参数。

命名空间:  System.Data.SqlServerCe
程序集:  System.Data.SqlServerCe(在 System.Data.SqlServerCe.dll 中)

语法

声明
Public Sub New ( _
    parameterName As String, _
    dbType As SqlDbType, _
    size As Integer, _
    direction As ParameterDirection, _
    isNullable As Boolean, _
    precision As Byte, _
    scale As Byte, _
    sourceColumn As String, _
    sourceVersion As DataRowVersion, _
    value As Object _
)
用法
Dim parameterName As String
Dim dbType As SqlDbType
Dim size As Integer
Dim direction As ParameterDirection
Dim isNullable As Boolean
Dim precision As Byte
Dim scale As Byte
Dim sourceColumn As String
Dim sourceVersion As DataRowVersion
Dim value As Object

Dim instance As New SqlCeParameter(parameterName, _
    dbType, size, direction, isNullable, _
    precision, scale, sourceColumn, sourceVersion, _
    value)
public SqlCeParameter(
    string parameterName,
    SqlDbType dbType,
    int size,
    ParameterDirection direction,
    bool isNullable,
    byte precision,
    byte scale,
    string sourceColumn,
    DataRowVersion sourceVersion,
    Object value
)
public:
SqlCeParameter(
    String^ parameterName, 
    SqlDbType dbType, 
    int size, 
    ParameterDirection direction, 
    bool isNullable, 
    unsigned char precision, 
    unsigned char scale, 
    String^ sourceColumn, 
    DataRowVersion sourceVersion, 
    Object^ value
)
new : 
        parameterName:string * 
        dbType:SqlDbType * 
        size:int * 
        direction:ParameterDirection * 
        isNullable:bool * 
        precision:byte * 
        scale:byte * 
        sourceColumn:string * 
        sourceVersion:DataRowVersion * 
        value:Object -> SqlCeParameter
public function SqlCeParameter(
    parameterName : String, 
    dbType : SqlDbType, 
    size : int, 
    direction : ParameterDirection, 
    isNullable : boolean, 
    precision : byte, 
    scale : byte, 
    sourceColumn : String, 
    sourceVersion : DataRowVersion, 
    value : Object
)

参数

  • isNullable
    类型:System.Boolean
    如果字段的值可为空,则为 true;否则为 false。
  • precision
    类型:System.Byte
    要将 Value 解析为的小数点左右两侧的总位数。

请参阅

参考

SqlCeParameter 类

SqlCeParameter 重载

System.Data.SqlServerCe 命名空间