菜鸟急求高手指点！！！vb.net2008中把数据库的表读到datagridview中显示

添加一个DataGridView控件，在控件右上的小三角型点一下，选择数据源--添加数据源--(数据库)下一步--新建联接--(浏览一个已存在的数据库文件)确定--下一步(可选不复制)--下一步--数据集包含数据库对象选择表中你的自定义表名(希望显示的表)--完成

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上面完成启动调试就能把数据库的表读到datagridview中显示

添加下面代码到代码项就能单击datagridview中记录时textbox中同步显示

Private Sub DataGridView1_CellMouseClick(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellMouseEventArgs) Handles DataGridView1.CellMouseClick

TextBox1.Text = DataGridView1.SelectedCells(0).Value

End Sub

在vb.net中怎样浏览首记录 、上一条、下一条、尾记录、和数据库access 绑定的

一般，我都不喜欢做这样报上一条下一条，太专业的数据库操作不适合终端用户。

如果必须要做，你可以这样：按排序规则，取到健列表。保存到list中，上下条，只是改变一索引而已。

Imports System.Data.OleDb

Class BindNavigate

Dim cnn As OleDb.OleDbConnection '打开连接略

Dim lst As New List(Of Integer)

Sub New()

lst = New List(Of Integer)

index = -1

Using da As New OleDbDataAdapter("select id from mytable order by abc,def", cnn), tb As New DataTable

da.Fill(tb)

For Each row As DataRow In tb.Rows

Dim n As Integer = row(0)

lst.Add(n)

Next

If tb.Rows.Count 0 Then CurrentIndex = 0

End Using

End Sub

Dim index As Integer Event CurrentIndexChanged()

Property CurrentIndex As Integer

Get

Return index

End Get

Set(ByVal value As Integer)

Dim b As Boolean = value index

index = value

If b Then RaiseEvent CurrentIndexChanged()

End Set

End Property

'当前的键值

ReadOnly Property CurrentValue As Integer

Get

Return lst(index)

End Get

End Property

Sub MoveFirst()

CurrentIndex = 0

End Sub

Sub MovePrevious()

CurrentIndex -= 1

End Sub

Sub MoveNext()

CurrentIndex += 1

End Sub

Sub MoveLast()

CurrentIndex = lst.Count - 1

End Sub

ReadOnly Property BOF

Get

Return CurrentIndex = 0

End Get

End Property

ReadOnly Property EOF

Get

Return CurrentIndex = lst.Count - 1

End Get

End Property

Private Sub Text_CurrentIndexChanged() Handles Me.CurrentIndexChanged

'绑定过程

End Sub

End Class

在vb.net中如何查询MDB数据库的数据

以下是完整模块

Imports

System.Data

Imports

System.IO

Imports

System.Data.OleDb

Module

Module1

Public

cn

As

New

OleDb.OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data

Source="

Application.StartupPath

"\mdb数据库名字.mdb")

'定义连接

Public

DataBaseRST

As

Integer

'用来返回数据库执行结果

Public

Function

DataModify(ByVal

str

As

String)

As

Boolean

'进行数据库修改操作

Dim

cmdinsert

As

New

OleDbCommand

Try

cmdinsert.CommandText

=

str

cmdinsert.Connection

=

cn

If

cn.State

=

ConnectionState.Closed

Then

cn.Open()

DataBaseRST

=

cmdinsert.ExecuteNonQuery()

'用来返回执行的结果

cn.Close()

Return

True

Catch

ex

As

Exception

MessageBox.Show(Err.Description,

"Error",

MessageBoxButtons.OK,

MessageBoxIcon.Error)

Return

False

End

Try

End

Function

Public

Function

Search(ByVal

str

As

String,

ByVal

DGV

As

DataGridView)

As

Boolean

'查询

str---查询命令，DGV---DataGridView，用来显示数据的控件

Dim

tb

As

New

DataTable

Try

Dim

ap

As

New

OleDb.OleDbDataAdapter(str,

cn)

ap.Fill(tb)

DGV.DataSource

=

tb

Return

True

Catch

ex

As

Exception

MessageBox.Show(Err.Description,

"Error",

MessageBoxButtons.OK,

MessageBoxIcon.Error)

Return

False

End

Try

End

Function

End

Module

'以下是调用方法

DataModify("

insert

into

aa

values

('1','2')")'-------这里是数据库更新操作

Search("select

bb

from

aa",DataGridView1)'-----------这里是数据表查询操作

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