把数据库表的某一列的数据添加到comboBox中
public void update_cardName()
{
string conStr = "server=(local);database=个人财务管理; Integrated security=true;";
SqlConnection con = new SqlConnection(conStr);
string sqlStr = "select 卡号尾数 ,银行卡名称 from 银行卡信息;";
try
{
con.Open();
DataSet ds1 = new DataSet();
DataSet ds2 = new DataSet();
SqlDataAdapter da = new SqlDataAdapter(sqlStr, con);
da.Fill(ds1);
da.Fill(ds2);
comboBox1.DataSource = ds1.Tables[0].DefaultView;
comboBox1.DisplayMember = "卡号尾数";
comboBox2.DataSource = ds2.Tables[0].DefaultView;
comboBox2.DisplayMember = "卡号尾数";
con.Close();
}