StringValidatorAttribute.InvalidCharacters 属性

定义

命名空间:

System.Configuration

程序集:

System.Configuration.ConfigurationManager.dll

包:

System.Configuration.ConfigurationManager v8.0.0

Source:

StringValidatorAttribute.cs

获取或设置属性的无效字符。

public:
 property System::String ^ InvalidCharacters { System::String ^ get(); void set(System::String ^ value); };

public string InvalidCharacters { get; set; }

member this.InvalidCharacters : string with get, set

Public Property InvalidCharacters As String

属性值

String

包含属性不允许的字符集的字符串。

示例

下面的示例演示如何使用 InvalidCharacters 属性。

[ConfigurationProperty("fileName", DefaultValue = "default.txt",
    IsRequired = true, IsKey = false)]
[StringValidator(InvalidCharacters = " ~!@#$%^&*()[]{}/;'\"|\\",
    MinLength = 1, MaxLength = 60)]
public string FileName
{
    get
    {
        return (string)this["fileName"];
    }
    set
    {
        this["fileName"] = value;
    }
}

<ConfigurationProperty("fileName", _
DefaultValue:="default.txt", _
IsRequired:=True, _
IsKey:=False), _
StringValidator( _
InvalidCharacters:=" ~!@#$%^&*()[]{}/;'""|\", _
MinLength:=1, _
MaxLength:=60)> _
Public Property FileName() As String
    Get
        Return CStr(Me("fileName"))
    End Get
    Set(ByVal value As String)
        Me("fileName") = value
    End Set
End Property