int ppr2 = Convert.ToInt32(cmd2.ExecuteScalar());
                string sq4 = "insert into kehu values('" + comboBox1.Text.Trim() + "','" + ppr + "','" + comboBox2.Text.Trim() + "','" + ppr1 + "','" + textBox1.Text.Trim() + "','" + ppr2 + "','" + textBox4.Text.Trim() + "','" + textBox2.Text.Trim() + "','" + textBox3.Text.Trim() + "','" + textBox5.Text.Trim() + "','" + textBox6.Text.Trim() + "','" + textBox7.Text.Trim() + "','" + textBox8.Text.Trim() + "','" + textBox9.Text.Trim() + "','" + textBox10.Text.Trim() + "','" + textBox11.Text.Trim() + "')";
                SqlCommand cmd3 = new SqlCommand(sq4, conn);
                cmd3.ExecuteNonQuery();
                sqlClose();
                MessageBox.Show("添加成功");
                button3.Enabled = true;
            }
 
图 3.8添加联系人
添加的联系人与之前添加的客户相对应，当然，也可以不用现在添加，可以从模块导航界面直接进入到添加联系人界面。
输入正确的联系人信息，按下“确认”键后，保存信息，若输入不完整，也会出现错误提示，并无法保存信息。
实现代码如下：
if (textBox1.Text == "" || textBox2.Text == "" || textBox3.Text == "" || textBox6.Text == "" || textBox9.Text == "")
            {
                MessageBox.Show("信息输入不完整，请检查");
                return;
            }
            else
            {
                sqlConnect();
                string sq = "select max(custormid) from kehu";
                SqlCommand cmd = new SqlCommand(sq, conn);
                int ppr = Convert.ToInt32(cmd.ExecuteScalar());
                string sq1 = "select max(lianxirenid)+1 from lianxiren";
                SqlCommand cmd1 = new SqlCommand(sq1, conn);
                int ppr1 = Convert.ToInt32(cmd1.ExecuteScalar());
                string sq2 = "insert into lianxiren values('" + ppr + "','" + textBox1.Text.Trim() + "','" + textBox2.Text.Trim() + "','" + textBox3.Text.Trim() + "','" + textBox4.Text.Trim() + "','" + textBox5.Text.Trim() + "','" + textBox6.Text.Trim() + "','" + textBox7.Text.Trim() + "','" + textBox8.Text.Trim() + "','" + textBox9.Text.Trim() + "','" +ppr1 + "','" + textBox10.Text.Trim() + "','" + textBox11.Text.Trim() + "')"; ASP.NET客户信息管理系统的开发(10):http://www.751com.cn/jisuanji/lunwen_460.html