修剪我的asp.net mvc中的字符串的最佳方法

Question

I have a string field name consoleServerPort, and I want to trim all the white spaces inside it before saving it. I use to do so inside my controller class, as follow:-

public ActionResult Edit(FirewallJoin fj, FormCollection formValues)
        {
fj.ConsoleServerPort = !String.IsNullOrEmpty(fj.ConsoleServerPort) ? fj. ConsoleServerPort.Trim() : "";

But I have to repeat this step on every action method. So I found another way of doing so once at the model level inside an Ivalidatable method as follow:-

public partial class TMSFirewall : IValidatableObject
    {
public IEnumerable<ValidationResult> Validate(ValidationContext validationContext)
        {

            if(!String.IsNullOrEmpty(ConsoleServerPort)){
                ConsoleServerPort = ConsoleServerPort.Trim();
            }

So is my second approach sound valid? or it is better to use the first approach ? Thanks

Edit I am using entity Framework and i did the following i tried the following inside my model class i added the following :-

[MetadataType(typeof(TMSSwitchPort_Validation))]
    [Bind(Include = "PortNumber,SwitchID,TechnologyID")]
    public partial class TMSSwitchPort //: IValidatableObject
    {

    }

then inside the MetadataType class i added the following :-

public class TMSSwitchPort_Validation
    {
        private string consoleServerPort;

        [Required]
        [StringLength(10)]
        [Display(Name="Port Number1111")]
        public String PortNumber
        {
            get { return this.consoleServerPort; }
            set { this.consoleServerPort = value.Trim(); }
        }


    }

but the ConsoleServerPort will not be trimmed? can you advice what might be the problem ?

Thanks

Answer 1

Couldn't you do it on the property setter?

public class FirewallJoin
{
     private string _consoleServerPort;
     public string ConsoleServerPort
     {
         get
         {
               return _consoleServerPort;
         }
         set
         {
             _consoleServerPort = value.Trim();
         }
     }
}