private void butSendSkill_Click(object sender, EventArgs e) { tbSkill.ForeColor = Color.Black; bool mistake = tbSkill.CheckField(20, @"^[a-zA-Z0-9 ]+$"); if (mistake) { return; } string report = Skill.AddSkill(_myUserProfile, tbSkill.Text, _skillForEdite); if (report != "OK") { MessageBox.Show(report); } else { MessageBox.Show("Work is done!"); tbSkill.Clear(); butSendSkill.Text = "Add Skill"; butSendSkill.ForeColor = Color.Blue; _skillForEdite = -1; } ReadSkills(); }