RegexStringValidatorAttribute.ValidatorInstance Properti

Definisi

Ruang nama:

System.Configuration

Rakitan:

System.Configuration.ConfigurationManager.dll

Paket:

System.Configuration.ConfigurationManager v8.0.0

Sumber:

RegexStringValidatorAttribute.cs

Mendapatkan instans RegexStringValidator kelas .

public:
 virtual property System::Configuration::ConfigurationValidatorBase ^ ValidatorInstance { System::Configuration::ConfigurationValidatorBase ^ get(); };

public override System.Configuration.ConfigurationValidatorBase ValidatorInstance { get; }

member this.ValidatorInstance : System.Configuration.ConfigurationValidatorBase

Public Overrides ReadOnly Property ValidatorInstance As ConfigurationValidatorBase

Nilai Properti

ConfigurationValidatorBase

Instans ConfigurationValidatorBase validator.

Contoh

Contoh berikut menunjukkan cara menggunakan ValidatorInstance metode .

            ConfigurationValidatorBase valBase;

            RegexStringValidatorAttribute rstrValAttr =
            new RegexStringValidatorAttribute(@"\w+\S*");

            // Get the regular expression string.
            string regex = rstrValAttr.Regex;
            Console.WriteLine("Regular expression: {0}", regex);


            string badValue = "&%$bbb";
            string goodValue = "filename.txt";

            try
            {
                valBase = rstrValAttr.ValidatorInstance;
                valBase.Validate(goodValue);
                // valBase.Validate(badValue);
            }
            catch (ArgumentException e)
            {
                // Display error message.
                string msg = e.ToString();
#if DEBUG
                Console.WriteLine(msg);
#endif
            }

        Dim valBase As _
        ConfigurationValidatorBase

        Dim rstrValAttr As _
        New RegexStringValidatorAttribute("\w+\S*")

        ' Get the regular expression string.
        Dim regex As String = _
        rstrValAttr.Regex
        Console.WriteLine( _
        "Regular expression: {0}", regex)

        Dim badValue As _
        String = "&%$bbb"
        Dim goodValue As _
        String = "filename.txt"

        Try
            valBase = rstrValAttr.ValidatorInstance
            valBase.Validate(goodValue)
            ' valBase.Validate(badValue);
        Catch e As ArgumentException
            ' Display error message.
            Dim msg As String = e.ToString()

#If DEBUG Then
            Console.WriteLine(msg)
#End If

        End Try '

Keterangan

Anda menggunakan ValidatorInstance properti untuk melakukan validasi string dengan memanggil metodenya Validate .

Lihat juga

• ConfigurationValidatorAttribute