StringValidatorAttribute.ValidatorInstance 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 StringValidator 类的实例。

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

属性值

ConfigurationValidatorBase

StringValidator 验证程序实例中的当前 ConfigurationValidatorBase 设置。

示例

下面的示例演示如何使用 ValidatorInstance 属性。

            ConfigurationValidatorBase valBase;
            StringValidatorAttribute strValAttr =
            new StringValidatorAttribute();

            long badValue = 10;
            string goodValue = "10";

            try
            {
                valBase = strValAttr.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 strValAttr As New StringValidatorAttribute()

        Dim badValue As Long = 10
        Dim goodValue As String = "10"

        Try
            valBase = strValAttr.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 '

注解

使用 ValidatorInstance 属性通过调用其 Validate 方法执行字符串验证。

另请参阅

• ConfigurationValidatorAttribute