Question

I have a ListBox that contains a System.net.IPAddress and string items. I want to convert them all to strings. I have tried this as shown below but it says it can not cast from IPAddress to string.

var List4 = f.listBox4.Items.Cast<String>().ToList();
foreach (string i in List4)
{
    cursheet.get_Range(colname + x).Value = i;
    x++;
}

Answer 1

How about this? No need for linq, casting, etc..

foreach (var item in f.listBox4.Items) 
{ 
    cursheet.get_Range(colname + x).Value = item.Text; 
    x++; 
} 

Or, if you want the value:

foreach (var item in f.listBox4.Items) 
{   
    cursheet.get_Range(colname + x).Value = item.Value; 
    x++; 
}