asp.net-mvc Html.ValidationSummary(false, "message") 始终显示，即使在页面加载时
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Html.ValidationSummary(false, "message") is always showing, even on page load
提问by MondayPaper
I am using client side validation and I would like the message below to show only when I have an error. I am trying to use this a general error in case any field is invalid.
Currently
我正在使用客户端验证，我希望以下消息仅在出现错误时显示。我试图在任何字段无效的情况下使用这个一般错误。
目前
"* denotes required field"
“* 表示必填项”
is always showing even before validation.
甚至在验证之前总是显示。
<%: Html.ValidationSummary(false, "* denotes required field.")%>
I am using model binding to perform validation on client side and MVC.
我正在使用模型绑定在客户端和 MVC 上执行验证。
回答by Ryan O'Neill
If you use a developer tool in your browser to inspect the validation summary text you'll see that it has the class validation-summary-validwhen it is clear but validation-summary-errorswhen there are form errors.
如果您在浏览器中使用开发人员工具检查验证摘要文本，您会看到它在清晰但存在表单错误时具有该类。validation-summary-validvalidation-summary-errors
Therefore, just create a css rule as follows;
因此，只需创建如下 css 规则即可；
.validation-summary-valid {
display:none;
}
and all should be good.
一切都应该很好。
回答by Mark P
I think the issue is the fact the Html.ValidationSummary has to appear before the Html.BeginForm otherwise the message is always displayed.
我认为问题在于 Html.ValidationSummary 必须出现在 Html.BeginForm 之前，否则总是显示消息。
回答by Kristianne Nerona
Initially I was checking for a List property on page load so I thought of passing a new model. Then the validation summary just appeared. When I changed my code from
最初我在页面加载时检查 List 属性，所以我想传递一个新模型。然后验证摘要刚刚出现。当我改变我的代码时
return View(new myModel)
to
到
return View()
the validation summary did not appear on Get. I also added a null check on the model when checking the property so I can use the latter code.
验证摘要未出现在 Get 上。在检查属性时，我还在模型上添加了空检查，以便我可以使用后一种代码。
