求助:textBox绑定数据源后,改变BindingManageBase的position值，但textBox的值未变

Question

textBox绑定数据源后,改变BindingManageBase的position值，但textBox的值未变，请各位帮忙，代码如下：
        private SqlConnection con;
    private SqlCommand comm;
    private SqlDataAdapter dataAdapter;
    private DataSet ds_ObjectInfo;    private BindingManagerBase bm;
    private void Form1_Load(object sender, System.EventArgs e)
   {
        string connstr="user id=sa;password=123;initial catalog=try;data source=JS08;";
        con=new  SqlConnection(connstr);
        comm=new SqlCommand();
        comm.Connection=con;
comm.CommandType=CommandType.StoredProcedure;
comm.CommandText="usp_AllObjectsInfo";

dataAdapter=new SqlDataAdapter(comm);
ds_ObjectInfo=new DataSet(); 
        dataAdapter.Fill(ds_ObjectInfo,"ObjectInfo");        bm=this.BindingContext[ds_ObjectInfo,"ObjectInfo"];
        textBox_Name.DataBindings.Add("Text",ds_ObjectInfo.Tables["ObjectInfo"],"ObjectName");
textBox_Religion.DataBindings.Add("Text",ds_ObjectInfo.Tables["ObjectInfo"],"Religion");


    }    private void button1_Click(object sender, System.EventArgs e)
    {
bm.Position=3;
       this.BindingContext[ds_ObjectInfo,"ObjectInfo"].Position=3;

    }

Answer 1

补充一下，我想在点击 button1 时改变两个 textBox 的值

Answer 2

不用这么
 textBox_Name.DataBindings.Add("Text",ds_ObjectInfo.Tables["ObjectInfo"],"ObjectName
最好用
textbox.text="";

Answer 3

将这两句：
bm=this.BindingContext[ds_ObjectInfo,"ObjectInfo"];
bm.Position=3;都注释掉试试..

Answer 4

改成这样试试：
textBox_Name.DataBindings.Add("Text",ds_ObjectInfo,"ObjectInfo.ObjectName");
textBox_Religion.DataBindings.Add("Text",ds_ObjectInfo,"ObjectInfo.Religion");

Answer 5

致liujia_0421(SnowLover):
     谢谢！
     问题解决，错在这种不起眼的地方，浪费了我一天的时间，真是郁闷啊！