CODEWITHSUNDEEP
c#.netrecursion
Detlef D Soost
Detlef D Soost

Reputation: 98

Recursive method c#

i made this recursive function, but after the "return" it jumps back to the line GetProp(classes, obj); and so it returns twice and I get a wrong value.

Thats how I call the method

foreach (string fieldKey in fieldKeys)
{
   Console.WriteLine(fieldKey);
   var props = fieldKey.Split('.');
   form.SetField(fieldKey, GetProp(props, inv));
}

Here is the method

public static string GetProp(string[] classes, object oldObj)
{
     var obj = oldObj.GetType().GetProperty(classes[0]).GetValue(oldObj, null);
     if(classes.Length>1)
     {
        classes = classes.Skip(1).ToArray();
        GetProp(classes, obj);
     }
        return obj.ToString();
}

Upvotes: 1

Views: 133

Answers (3)

Jordi Jordi
Jordi Jordi

Reputation: 481

You need the return at recursion i think. 

 public static string GetProp(string[] classes, object oldObj)
 {
 var obj = oldObj.GetType().GetProperty(classes[0]).GetValue(oldObj, null);
 if(classes.Length>1)
   {
    classes = classes.Skip(1).ToArray();
    return GetProp(classes, obj);
   }
      return obj.ToString();
 }

Upvotes: 1

Abdo
Abdo

Reputation: 332

it doesn't jump this actually the most recent call returns to main call any way to fix this you need to return the most recent value just change GetProp(classes,object); to return GetProp(classes,object);

Upvotes: 0

Rimander
Rimander

Reputation: 131

You need return the string when use recursive.

example:

public int recursive(int i){
    if(i == 1){
       i = i + 1;
       return recursive(i);
    }
    return i;
}

try with

return GetProp(classes, obj);

Upvotes: 0

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