private void button1_Click(object sender, EventArgs e) { if (tbxArticleType.Text == "") { MessageBox.Show("The Type Article is required!", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error); return; } TypeArticle type = new TypeArticle(); type.id = this.mainID; type.typeArticle = tbxArticleType.Text.Trim(); type.save(); if (this.mainID == null) { MessageBox.Show("Type Article successfully inserted!", "Success", MessageBoxButtons.OK, MessageBoxIcon.Information); } else { MessageBox.Show("Type Article successfully updated!", "Success", MessageBoxButtons.OK, MessageBoxIcon.Information); } this.Close(); }