Saving Listbox items to settings c#

Question

How do I save the items of a listbox to Properties.Settings? Also how should I load those items on FormLoad? I've searched the web but I couldn't any helpful result. In settings, should I set the type to string? Please help!

Answer 1

Hi HemanthB-9452,
First, you need to add a "listboxItems" setting：
Name - listboxItems, Type - System.Collections.ArrayList, Scope - User
Note that maybe you need to follow the steps to find System.Collections.ArrayList type:
Expand the type drop-down box->Browser->Input System.Collections.ArrayList in Selected type->ok

Then refer to the following code:

private void Form1_Load(object sender, EventArgs e)  
{  
    // add all items from listbox1 to settings  
    var newList = new ArrayList();  
    foreach (object item in listBox1.Items)  
    {  
        newList.Add(item);  
    }  
  
    Properties.Settings.Default.listboxItems = newList;  
    Properties.Settings.Default.Save();  
    //you could load the list back like so:  
    listBox2.Items.AddRange(Properties.Settings.Default.listboxItems.ToArray());  
}  

Best Regards,
Daniel Zhang

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