c# - Show validation message, but clear value -

I'm searching around and I feel like a normal requirement but I can not find an answer: / P>

With MVC data entry verification, you can show the verification message ('Maximum length should be 5 string with') in the summary of the verification, but clear the value of the text box (when

I used to use the ModelState.Clear () and ModelState.Remove ("CompanyName") It clears, both the value and verification message (verification status).

I am asking because because we had an entrance examination recently and from the recommendations A was not pre-populated secure value (credit card number etc.) if verification fails. This is clearly a minor case, but the recommendation was not to send the value back to the server (from the server) , If we do not Land.

There have been code I have ever worked with:

  Edit public function () {return View (); } [Http post] Edit the Public Action Result (Company Input Input) {if (ModelState.IsValid) {Return View ("Success"); } //ModelState.Clear // has approved both the value and verification message. //ModelState.Remove("CompanyName ") // Return Similar Results Return (New CompanyInput ()); }   
 More visual models:  
  public class companyInput {[required] [string lang (5)] public string companyName {get; Set; } [Datatype (datatype e-mail account)] {get public string email address; Set; }}   
 More views:  
  @ Model Test. Models. Company input & lt; H2 & gt; Edit & lt; / H2 & gt; @using (Html.BeginForm ("edit", "company")) {@ Html.EditorForModel () & lt; Button type = "submit" & gt; Submit & lt; / Button & gt; }   
 
 
 The modelstate of each field only keeps more than the value, Completely deleted your error message as expected. I believe that you have to do something, however, only that value should be able to clean.  
  ModelState ["Company name"]. Value = zero;  Edit:  After the close inspection I found that the value of the property is  ValueProviderResult , simply the result of not filling it is not desired, and because the properties of this category are the recipients only You have to replace your own example I have tested the following and it works for me.  
  ModelState ["Company name"]. Value = new value provider result (string.opti, string.opt, modelstate ["company name"]. Value; culture);