VB.net小技巧——使用DataGridView显示EXECL表格内容

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    Private Sub Button24_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button24.Click
        Dim fileDialog As OpenFileDialog = New OpenFileDialog()
        fileDialog.InitialDirectory = My.Computer.FileSystem.CurrentDirectory
        fileDialog.Filter = "Excel files(*.xls)|*.xls|Excel files(*.xlsx)|*.xlsx"
        fileDialog.FilterIndex = 1
        fileDialog.RestoreDirectory = True
        If fileDialog.ShowDialog() = Windows.Forms.DialogResult.OK Then
            Dim fileName As String
            Dim strConn As String
            fileName = fileDialog.FileName
            '建立EXCEL连接, 读入数据
            If fileDialog.FilterIndex = 1 Then
                strConn = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source='" & fileName & "';Extended Properties=Excel 8.0;"
            Else
                strConn = "Provider=Microsoft.Ace.OLEDB.12.0;Data Source='" & fileName & "';Extended Properties=Excel 8.0;"
            End If
            Dim myDataset As New DataSet
            Dim da As New OleDb.OleDbDataAdapter("select * FROM [Sheet1$]", strConn)
            Dim bindin As BindingSource = New BindingSource
            Try
                DataGridView1.Columns.Clear()
                da.Fill(myDataset)
                bindin.DataSource = myDataset.Tables(0)
                DataGridView1.DataSource = bindin.DataSource
            Catch ex As Exception
                MessageBox.Show("EXECL文件载入失败")
            End Try
        End If
    End Sub