Imports System.Data.OleDb
Public Class Form1
Private _FilePath As String = ""
Private _DS As DataSet
Private Const _Connectstring = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=<FilePath>;Extended Properties=""Excel 8.0"""
Private Const _SelectData = "Select * from [<TableName>$]"
Private Sub TSBSelectFile_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TSBSelectFile.Click
Me.OFDExcel.FileName = _FilePath
If Not Me.OFDExcel.ShowDialog(Me) = vbOK Then
Exit Sub
End If
_FilePath = Me.OFDExcel.FileName
Me.TSLFilePath.Text = _FilePath
Try
Using cn As OleDb.OleDbConnection = New OleDbConnection(_Connectstring.Replace("<FilePath>", _FilePath))
cn.Open()
_DS = New DataSet
Dim tb As DataTable = cn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, Nothing)
Me.TSCBOSheetList.Items.Clear()
For Each r As DataRow In tb.Rows
If r("TABLE_TYPE") = "TABLE" Then
Me.TSCBOSheetList.Items.Add(r("TABLE_NAME").ToString.Replace("$", ""))
End If
Next
If Me.TSCBOSheetList.Items.Count > 0 Then
Me.TSCBOSheetList.SelectedIndex = 0
End If
End Using
Catch ex As Exception
MsgBox(ex.Message)
End Try
End Sub
Private Sub TSCBOSheetList_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles TSCBOSheetList.SelectedIndexChanged
Try
Dim TBName As String = Me.TSCBOSheetList.SelectedItem.ToString
If _DS.Tables.Contains(TBName) Then
Me.DataGridView1.DataSource = _DS.Tables(TBName)
Exit Sub
End If
Using cn As OleDb.OleDbConnection = New OleDbConnection(_Connectstring.Replace("<FilePath>", _FilePath))
cn.Open()
Dim sql As String = _SelectData.Replace("<TableName>", TBName)
Using ad As OleDbDataAdapter = New OleDbDataAdapter(sql, cn)
ad.Fill(_DS, TBName)
Me.DataGridView1.DataSource = _DS.Tables(TBName)
End Using
End Using
Catch ex As Exception
MsgBox(ex.Message)
End Try
End Sub
End Class
