小编mar*_*007的帖子

许多关于SQL中带有C#的参数的帖子,但我仍然遗漏了一些东西.我没有收到错误消息但没有插入数据.缺什么？我有名为fname,lname,address,city,state和zip的文本框.

 private void enter_button_Click(object sender, EventArgs e)
 {
    string first, last, addy, city1, stat, zippy;
    first = fname.Text; 
    SqlParameter firstparam;
    firstparam = new SqlParameter();
    firstparam.ParameterName = "@first";
    firstparam.Value = first;
    last = lname.Text;
    SqlParameter lastparam;
    lastparam = new SqlParameter();
    lastparam.ParameterName = "@last";
    lastparam.Value = last;
    addy = address.Text;
    SqlParameter addressparam;
    addressparam = new SqlParameter();
    addressparam.ParameterName = "@addy";
    addressparam.Value = addy;
    city1 = city.Text;
    SqlParameter cityparam;
    cityparam = new SqlParameter();
    cityparam.ParameterName = "@city1";
    cityparam.Value = city1;
    stat = state.Text;
    SqlParameter stateparam; …