VB.NET
* Public Class Form1

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
OpenFileDialog1.ShowDialog()
End Sub

Private Sub OpenFileDialog1_FileOk(ByVal sender As System.Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles OpenFileDialog1.FileOk
TextBox1.Text = OpenFileDialog1.FileName
End Sub
End Class 

OpenFileDialog와 Filter 사용법

다른 Dialog에서의 Filter 사용법을 익혀보세여.