how to add items in datagridview?

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C#

C#4.0

DataGridView

hi,
i have windows application. it contains 1 grid view 1 button(Add ) and 2 textbox. now i enter the value in text-box and click the add button, the values stored in grid view.
My question is add the value in grid view and close the form then reopen that form but the empty grid view will displayed. i want to previously added the items.

private void button_Add_Click(object sender, EventArgs e)
       {
           
           dataGridView1.Rows.Add(textBox_Url.Text,textBox_Name.Text,textBox_password.Text);
           
           dataGridView1.Refresh();
       }