验证功能中基于敲除验证消息的设置 [英] Knockout validation message based set in the validation function
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问题描述
我想设置要在敲除的验证功能中显示的消息,类似于此处发生的情况:
I want to set the message to display in the validation function of knockout similar to whats going on here: Knockout Validation Plugin Custom Error Message but without async.
这里是我尝试的内容,但未显示验证消息.
Heres what ive tried, but no validation message is displayed.
this.name = ko.observable().extend({
validation: {
validator: function (val) {
return { isValid:val === 'a', message: 'the value ' + val + ' is not a' };
},
message: 'I dont want this default message'
}
});
有什么好方法吗?
推荐答案
关闭,如果规则通过,验证器应返回true/false.我无法显示message:
来显示值(即使设置是具有undefined
参数的函数),因此如果您想向用户显示该值,则始终可以内联错误消息.
close, the validator should be returning true/false if the rule passed. I couldn't get the message:
to display the value (even setting is as a function had undefined
arguments) so you can always inline the error message if you want to display the value back to the user.
this.name = ko.observable().extend({
validation: {
validator: function (val) {
if (val !== 'a') {
this.message = 'the value ' + val + ' is not a';
return false;
}
return true;
}
}
});
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