Globals.askForName.tbNewName_TextChanged C# (CSharp) Method

        void tbNewName_TextChanged(object sender, EventArgs e)
        {
            string[] sa = tbOldName.Text.Split('\\');
            string temp = string.Empty;
            for (int i = 0; i < sa.Length; i++)
            {
                if (sa[i] == previousTagName)
                    temp += tbNewName.Text;
                else
                    temp += sa[i];
                if (i < sa.Length - 1) temp += '\\';
            }
            tbOldName.Text = temp;
            previousTagName = tbNewName.Text;
        }