IntegerValidatorAttribute.ValidatorInstance 属性
定义
获取 IntegerValidator 类的实例。Gets an instance of the IntegerValidator class.
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 验证程序实例。The ConfigurationValidatorBase validator instance.
示例
下面的示例演示如何使用 ValidatorInstance 属性。The following example shows how to use the ValidatorInstance property.
ConfigurationValidatorBase valBase;
IntegerValidatorAttribute intValAttr;
intValAttr = new IntegerValidatorAttribute();
long badValue = 10;
int goodValue = 10;
try
{
valBase = intValAttr.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 intValAttr As IntegerValidatorAttribute
intValAttr = New IntegerValidatorAttribute()
Dim badValue As Long = 10
Dim goodValue As Integer = 10
Try
valBase = intValAttr.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 属性可通过调用其方法来执行字符串验证 Validate 。You use the ValidatorInstance property to perform string validation by calling its Validate method.