private void button1_Click(object sender, EventArgs e) { switch (isAddOrUpdate) { case 0: if (ValidateData.ValidateString(textBox1.Text)) { if (HandelControls.Msg("是否确认添加?", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes) { isAddOrUpdateMethod(); this.Close(); } } else { label3.Visible = true; } break; case 1: if (ValidateData.ValidateString(textBox1.Text)) { if (HandelControls.Msg("是否确认修改?", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes) { isAddOrUpdateMethod(); this.Close(); } } else { label3.Visible = true; } break; default: break; } }