listbox Refresh() in c#

Question

int[] arr = int[100];
listBox1.DataSource = arr;
void ComboBox1SelectedIndexChanged(object sender, EventArgs e)
{
    .....//some processes
    listBox1.DataSource =         


        

Answer 1

my first answer on stack exchange here.

C# .Net 4.0:

listBox1.DataSource = null;
listBox1.DataSource = names;

I noticed that setting the datasource for the first time, it refreshes. When it's set, and you try set it to the same one again, it doesn't update.

So I made it null, set it to the same one, and it displayed correctly for me with this issue.