添加自定義消息敲除需要驗證

Question

我已經添加了一個必需的驗證我的observable。如何將消息更改爲除「此字段是必需的」之外的內容。

self.Leaving = ko.observable(leaving).extend({ 
    required: { 
     onlyIf: function() { return self.Status() == 10; } 
    }    
}); 

Answer 1

self.Leaving = ko.observable(leaving).extend({ 
    required: { 
     onlyIf: function() { return self.Status() == 10; }, 
     message: 'Custom message' 
    } 
});