本人弄个商城数据可文件，但是出现这中问题System.Data.DataRowView，求助各位大神。
namespace Webshop
{
public partial class 登录 : Form
{
public 登录()
{
InitializeComponent();
}
SqlConnection conn;
SqlCommand com;
SqlDataAdapter da;
SqlDataReader dr;
public static string un;
public static string ur;
private void 登录_Load(object sender, EventArgs e)
{
conn = new SqlConnection("server=.;database=Webshop;integrated security = true");
conn.Open();
da = new SqlDataAdapter("select u_Name from Users", conn);
DataSet ds = new DataSet();
da.Fill(ds,"Users");
conn.Close();
comboBox1.DataSource = ds.Tables["Users"];
comboBox1.DisplayMember = " u_Name";
}
private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
conn.Open();
com = new SqlCommand("select u_Type from Users where u_Name ='" + comboBox1.Text+ "'", conn);
dr = com.ExecuteReader();
if (dr.Read())
{
textBox1.Text = dr["u_Type"].ToString();
}
conn.Close();
dr.Close();
}
}
}
