How Can i Change the ComboBox Name by parameter/variable?

Question

I wrote this method so i can use it instead of repeating the code.but how can i change cmb1 (ComboBox Name) to something like cmb(i). what i mean if i =10 ComboBox name = cmb10.for this part of the code(cmb1.Items.Add(srd.GetValue(0).ToString());).i want to change the number regarding to i.is it possible?if it is please help me!

This is the method im trying

public void ComboText(string text,int i)
{
    try
    {
        string connectionString = @"Data Source=DESKTOP-V0HE9JH\SQLEXPRESS01;Initial Catalog=Parts_Shop;Integrated Security=True";
        SqlConnection connection = new SqlConnection(@connectionString);

        connection.Open();
        SqlCommand command = new SqlCommand("select manufacturer from Parts where item_type = '" + text + "'", connection);
        SqlDataReader srd = command.ExecuteReader();

        while (srd.Read())
        {
            cmb1.Items.Add(srd.GetValue(0).ToString());
        }

        connection.Close();
    }
    catch (Exception ex)
    {
        MessageBox.Show(ex.Message);
    }
}

Answer 1

The Controls collection has two indexer overloads one accepting an int and another a string representing the name of the control.

var cmb = (ComboBox)Controls["cmb" + i];

This works if the combo box is placed directly on the form. If it is placed on another control like e.g. a panel, then access this container control's Controls property:

var cmb = (ComboBox)panel1.Controls["cmb" + i];