IDataParameter.ParameterName IDataParameter.ParameterName IDataParameter.ParameterName IDataParameter.ParameterName Property

定义

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

public:
 property System::String ^ ParameterName { System::String ^ get(); void set(System::String ^ value); };
public string ParameterName { get; set; }
member this.ParameterName : string with get, set
Public Property ParameterName As String

属性值

IDataParameter 的名称。The name of the IDataParameter. 默认值为一个空字符串。The default is an empty string.

示例

下面的示例创建一个实现类SqlParameter的实例, 并设置其一些属性。The following example creates an instance of the implementing class, SqlParameter, and sets some of its properties.

private static void AddSqlParameter(SqlCommand command)
{
    SqlParameter parameter = new SqlParameter();
    parameter.ParameterName = "@Description";
    parameter.IsNullable = true;
    parameter.DbType = DbType.String;
    parameter.Direction = ParameterDirection.Output;

    command.Parameters.Add(parameter);
}
Private Sub AddSqlParameter(ByVal command As SqlCommand)

    Dim parameter As New SqlParameter()
    With parameter
        .ParameterName = "@Description"
        .IsNullable = True
        .DbType = DbType.String
        .Direction = ParameterDirection.Output
    End With

    command.Parameters.Add(parameter)
End Sub

注解

以 paramname 形式@指定。 ParameterNameThe ParameterName is specified in the form @paramname. 必须在执行ParameterName依赖于参数的命令之前设置。You must set ParameterName before executing a command that relies on parameters.

适用于