C# Fill textfield from looping data

Question

I want ask about data to combine string on one field and add (,) for each string.

this my code on C#

for (i = 0; i < count_; i++)
{
    accessbranch[i] = collection.GetValue("accessbranch" + i).AttemtedValue.ToString();
}

I want get each string and make it one a field or variable.

output I want ex

banana, papaya, melon

add (,) and space

Answer 1

You can use String.Join

string[] values = new string[]{"banana", "papaya", "melon"};

var result = string.Join(", ", values);