ComboBox与数据库的连接

Question

我正在尝试将组合框链接到我的数据库列＆＃34; name＆＃34;，为此我正在观看来自youtube的教程。一切都很顺利，但现在我遇到连接组合框的问题。我是VB.Net的新手，所以请指导我。 这是我的代码：

 Private Sub Form2_Load(sender As Object, e As EventArgs) Handles MyBase.Load

    con = New SqlConnection
    con.ConnectionString = "Data Source=(LocalDB)\v11.0;AttachDbFilename=C:\Users\zeeshan\documents\visual studio 2013\Projects\Tutorials\Tutorials\Register.mdf"
    Dim READER As SqlDataReader


    Try
        con.Open()
        Dim Query As String
        Query = "select * from dbo.edata"
        cmd = New SqlCommand(Query, con)
        READER = cmd.ExecuteReader

        While READER.Read
            Dim sName = READER.GetString("name")
            ComboBox1.Items.Add(sName)
        End While




        con.Close()

    Catch ex As SqlException
        MessageBox.Show(ex.Message)
    Finally
        con.Dispose()

    End Try
End Sub

我也附上了错误图片。此代码在视频教程中运行良好，但我在使用它时遇到问题。

Answer 1

 datatable dt= cmd.ExecuteReader

      if(dt.rows.count>0)
    {
            foreach(Datarow dr in dt.rows)
         {
            ComboBox1.Items.Add(dt.Rows[0]["Name"].ToString());
         }
     }

Answer 2

使用索引列

While READER.Read
      Dim sName = READER.GetString(1)
      ComboBox1.Items.Add(sName)
End While