这个combobox控件下拉框数据绑定成功没，还是控件有问题，求帮我看下，为啥我运行控件选项为空呀

Question

private void FrmHonourAdd_Load(object sender, EventArgs e)
{
SqlConnection con = new SqlConnection("Data Source=BF-20190121OIUV;initial Catalog=ScienceManSys;User ID=sa;Password=gg5196288");
con.Open();

        //if (con.State == ConnectionState.Open)
        //{
        //    MessageBox.Show("数据库连接成功！");
        //}
        SqlDataAdapter da = new SqlDataAdapter("SELECT * FROM [dbo].[获奖分类表]",con);

        DataSet ds = new DataSet();
        da.Fill(ds);
        DataTable dtGroup = ds.Tables["0"];
        comboBox1.DataSource = dtGroup;
        comboBox1.DisplayMember = "AwardCategory"; //显示到comboBox的值
        comboBox1.ValueMember = "编号"; //comboBox真正的值

      
    
      
    }
 

Answer 1

打断点，到 comboBox1.DataSource = dtGroup; 右键dtGroup，快速监视，看看数据是否有，列名是否对