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An unhandled exception of type 'System.Data.OleDb.OleDbException' occurred in System.Data.dll

Additional information: UPDATE Óï¾äµÄÓï·¨´íÎó¡£

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VB.NET code:


Imports System.Data.OleDb

Public Class Form1
Dim con As OleDbConnection
Dim cmd As OleDbCommand
Dim myDA As OleDbDataAdapter
Dim myDataSet As DataSet


Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

Dim con As OleDbConnection = New OleDbConnection("Provider=Microsoft.jet.oledb.4.0;data source=|DataDirectory|\Database2.mdb")
Dim cmd As OleDbCommand = New OleDbCommand("SELECT * from TimePicker", con)
con.Open()
myDA = New OleDbDataAdapter(cmd)
'One CommandBuilder object is required. It automatically generates DeleteCommand,UpdateCommand and InsertCommand for DataAdapter object
Dim builder As OleDbCommandBuilder = New OleDbCommandBuilder(myDA)
myDataSet = New DataSet()
myDA.Fill(myDataSet, "MyTable")
DataGridView1.DataSource = myDataSet.Tables("MyTable").DefaultView
con.Close()
con = Nothing


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