怎么把sql中数据显示在textbox1.text中，弄了好长时间没有结果，求高人指点！！！

不行啊adodc未申明

版主呢？我不太懂，我自学了一点VB的基础就没有再学下去了.

2)代码实现：

'指定程序中引用的名称空间：在代码窗中输入：

Imports System.Drawing

Imports System.Windows.Forms

Imports

Imports System

Imports System.Data.OleDb

Imports System.Data

'首先定义全局变量myDataSet及GetConnected()方法，代码如下：

Public Class Form1

Inherits Form

Private WithEvents Button1 As Button

Private TextBox1 As TextBox

……(省略部分自动生成代码)

　　 Private myDataSet As DataSet

Private components As

Public Sub New()

MyBase.New()

GetConnected() '这个过程是用于建立连接，打开数据库

InitializeComponent()

End Sub

'清除在程序中使用过的资源

Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)

……(省略部分自动生成代码)

End Sub

'

'为GetConnected()方法增加代码，用来打开数据表，返回数据集。

Public Sub GetConnected()

'创建一个 OleDbConnection

Dim ConnectionString As String = ″ Provider = Microsoft.Jet.OLEDB.4.0; Data Source = e:\My Documents\db1.mdb″

Dim myConn As OleDbConnection = New OleDbConnection()

myConn.ConnectionString = ConnectionString

Dim strCom As String = ″ SELECT * FROM student ″

'创建一个 DataSet

myDataSet = New DataSet()

myConn.Open()

'用 OleDbDataAdapter 得到一个数据集

Dim myCommand As OleDbDataAdapter = New OleDbDataAdapter(strCom, myConn)

'把Dataset绑定student数据表

myCommand.Fill(myDataSet, ″student″)

'关闭此OleDbConnection

myConn.Close()

End Sub

'初始化窗体中的组件

Private Sub InitializeComponent()

……(省略部分自动生成代码)

End Sub

'将各个文本框控件绑定到数据库的各个字段。

Private Sub Button1_Click(ByVal sender As Object, _

ByVal e As System.EventArgs) Handles Button1.Click

TxtStuID.DataBindings.Add(New Binding(″Text″, Me.myDataSet, ″student.StuID″))

TxtStuName.DataBindings.Add(New Binding(″Text″, Me.myDataSet, ″student.StuName″))

TxtStuSex.DataBindings.Add(New Binding(″Text″, Me.myDataSet, ″student.StuSex″))

TxtStuBorn.DataBindings.Add(New Binding(″Text″, Me.myDataSet, ″student.StuBorn″))

TxtStuCore.DataBindings.Add(New Binding(″Text″, Me.myDataSet, ″student.StuCore″))

End Sub

End Class

Module Module1

Sub Main()

Application.Run(New Form1())

End SubEnd Module