vb.net 教程 4-4 目录操作 Directory 2

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紧接上一节内容。

 

创建文件夹：

    Private Sub btnCreateFolder_Click(sender As Object, e As EventArgs) Handles btnCreateFolder.Click
        If Directory.Exists("d:\bb") Then
            txtFolderInfo.Text = "该文件夹已经存在"
        Else
            Directory.CreateDirectory("d:\bb")
            txtFolderInfo.Text = "创建文件夹成功"
        End If
    End Sub

删除文件夹：

    Private Sub btnDelFolder_Click(sender As Object, e As EventArgs) Handles btnDelFolder.Click
        If Directory.Exists("d:\bb") Then
            Try
                Directory.Delete("d:\bb")
                txtFolderInfo.Text = "该文件夹已经删除"
            Catch ex As Exception
                txtFolderInfo.Text = "删除文件夹时发生错误：" & ex.Message
            End Try

        Else
            txtFolderInfo.Text = "该文件夹不存在"
        End If
    End Sub

有子目录或者文件时候的删除：

    Private Sub btnDelFolder2_Click(sender As Object, e As EventArgs) Handles btnDelFolder2.Click
        If Directory.Exists("d:\bb") Then
            Try
                Directory.Delete("d:\bb", True)
                txtFolderInfo.Text = "该文件夹已经删除"
            Catch ex As Exception
                txtFolderInfo.Text = "删除文件夹时发生错误：" & ex.Message
            End Try

        Else
            txtFolderInfo.Text = "该文件夹不存在"
        End If
    End Sub

移动文件夹，仍然是只能在同一磁盘分区下移动：

    Private Sub btnMoveFolder_Click(sender As Object, e As EventArgs) Handles btnMoveFolder.Click
        If Directory.Exists("d:\bb") Then
            Try
                Directory.Move("d:\bb", "d:\dd")
                txtFolderInfo.Text = "文件夹已经移动完毕"
            Catch ex As Exception
                txtFolderInfo.Text = "移动文件夹时发生错误，" & ex.Message
            End Try
        Else
            txtFolderInfo.Text = "文件夹不存在"
        End If
    End Sub

列出子目录：

    Private Sub btnSubFolders_Click(sender As Object, e As EventArgs) Handles btnSubFolders.Click
        Dim allFolders() As String
        allFolders = Directory.GetDirectories("c:\")
        txtFolderInfo.Text = ""
        For Each folder As String In allFolders
            txtFolderInfo.Text &= folder & ControlChars.CrLf
        Next
    End Sub

列出文件

    Private Sub btnFiles_Click(sender As Object, e As EventArgs) Handles btnFiles.Click
        Dim allFiles() As String
        allFiles = Directory.GetFiles("c:\")
        txtFolderInfo.Text = ""
        For Each file As String In allFiles
            txtFolderInfo.Text &= file & ControlChars.CrLf
        Next
    End Sub

列出所有，好像不能直接区别是目录还是文件：

    Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
        Dim allFoldersFiles() As String
        allFoldersFiles = Directory.GetFileSystemEntries("c:\")
        txtFolderInfo.Text = ""
        For Each file As String In allFoldersFiles
            txtFolderInfo.Text &= file & ControlChars.CrLf
        Next
    End Sub

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