Return multiple values from ArrayList C#

Question

I have method in C#, I have to return all values from ArrayList.

public string vyhledavaniOS()
        {
                foreach (Vozidlo voz in nabídka)
                {
                    if (voz is OsobníVůz)
                        return (voz.TypVozidla() + ": SPZ: " + voz.JakaSPZ + ", Značka: " + voz.JakaZnacka + ", Barva: " + voz.JakaBarva);
                }
        }

This code returns only one value, is there any way, how to return all values?

Arian Motamedi · Accepted Answer · 2013-10-20 18:02:08Z

1

Yes, you need to change the method to return an array of strings instead of only one string value. Something like this:

public List<string> vyhledavaniOS()
{
    List<string> listToReturn = new List<string>();

    foreach (Vozidlo voz in nabídka)
    {
        if (voz is OsobníVuz)
            listToReturn.Add((voz.TypVozidla() + ": SPZ: " + voz.JakaSPZ + ", Znacka: " + voz.JakaZnacka + ", Barva: " + voz.JakaBarva));
    }

    return listToReturn;
}

answered Oct 20, 2013 at 18:02

Arian Motamedi

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4 Comments

Arian Motamedi Over a year ago

What platform is this? WinForms? WPF? ASP.NET?

Arian Motamedi Over a year ago

Then I HIGHLY recommend that you start learning the MVVM pattern for WPF applications. Here's a very good quick-start tutorial. Alternatively, after you call the vyhledavaniOS() method, you can add the results to the ListBox using something like myListBox.Items.Add().

FrankieCC Over a year ago

I have LB_vypis.Items.Add(nb.vyhledavaniOS()) but that does not show the values.

Arian Motamedi Over a year ago

Items.Add() takes one item, but your method returns a list. You have to use a loop to add each item to the list. Something like: foreach(string item in nb.vyhledavaniOS()) { LB_vypis.Items.Add(item); }

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