用户选择路径

Question

我试图弄清楚如何通过点击我的应用程序来编写SQL Server备份，允许用户选择保存它的路径。

到目前为止，我有以下内容，但我仍然坚持如何继续。

Private Sub Backup_Click(sender As Object, e As EventArgs) Handles Backup.Click

    Dim sqlconnectionstring As String = "Data Source=ressqlxd023.silver.com\int;Initial Catalog=hw3qwq_c51twed;Integrated Security=True"
    Dim conn As New sqlconnection(sqlconnectionstring)
    conn.open()
    Dim cmd As New sqlcommand
    cmd.connection = conn
    cmd.ExecuteNonQuery()
    conn.close()