如何利用基因敲除驗證

Question

來調用視圖模型isValid（）的函數我已經定義了一個視圖模型如下：

var ViewModel = function() { 
    var self = this; 
    self.property1 = ko.observable().extend({ required: true }); 
    self.property2 = ko.computed(function() { 
     return self.property1(); 
    }); 
    self.form_onsubmit = function (form) { 
     if (!self.isValid()) { 
      console.log("error"); 
     } 
     return false; 
    }; 
}; 

$(function() { 
    ko.applyBindingsWithValidation(new ViewModel()); 
}); 

當我打電話form_onsubmit功能，出現錯誤：

TypeError: self.isValid is not a function 
if (!self.isValid()) { 

如何要解決它，謝謝^^^

Answer 1

添加

self.errors = ko.validation.group(self);

to your viewmodel