Set MVC3 parameters to default if empty or null in controller

Question

I am struggling to default CId and SId to 1 if the parameters are empty,

  public ViewResult Index(int? CId,int?SId,string name,int? p)
    {

        if (CId == 0 || SId == 0)
        {
            CId = 1;
            SId = 1;
        }

Then I will use the values for a normal query. Thanks for any help

Iswanto San · Accepted Answer · 2013-02-25 02:07:55Z

3

Cid and Sid is Nullable, so you can use HasValue property to check if the variable has value or not (null)

  public ViewResult Index(int? CId,int?SId,string name,int? p)
  {
        if (!CId.HasValue || !SId.HasValue)
        {
            CId = 1;
            SId = 1;
        }
  }

answered Feb 25, 2013 at 2:07

Iswanto San

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Comments

Mike C. · Accepted Answer · 2013-02-25 02:37:54Z

0

Just curious but have you tried:

public ViewResult Index(string name,int? p,int? CId = 1,int? SId = 1)
    {


    }

You have to rearrange them, because the default valued parameters have to come last. Also, being that they're nullable, I'm not actually sure if this will work.

answered Feb 25, 2013 at 2:37

Mike C.

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1 Comment

Diin Over a year ago

Thanks for the help but I can follow the logic in the other one and have tested it and it has worked. Did not test yours though

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