Delete Files Directory Sub Directories From Server In Asp.Net

This example explains How To Delete Files Folders Directory And Sub Directories From Server In Asp.Net Using C# And VB.NET

I have placed one GridView on the aspx page to Display Directory or Contents of SubDirectory from server and have added one ButtonField In GridView Source for deletion when user clicks on button.

I have created one DataTable which is getting data with help of DirectoryInfo class.

I'm Deleting Files in RowCommand usingSystem.IO.File.Delete and Directories or foldersusing System.IO.Directory.Delete methods.

HTML SOURCE OF GRIDVIEW

---

   1:  <asp:GridView ID="gridviewDeleteFiles" runat="server" 

   2:         onrowcommand="gridviewDeleteFiles_RowCommand" 

   3:         onrowdeleting="gridviewDeleteFiles_RowDeleting">

   4:  <Columns>

   5:  <asp:ButtonField Text="Delete" CommandName="Delete"/>

   6:  </Columns>

   7:  </asp:GridView>

C# CODE

---

01using System.Data;

02using System.IO;

03protected void Page_Load(object sender, EventArgs e)

04    {

05       FillGridView();

06    }

07private void FillGridView()

08    {

09        DataTable dtGridViewSource = new DataTable();

10        dtGridViewSource.Columns.Add(new DataColumn("Name", typeof(System.String)));

11        dtGridViewSource.Columns.Add(new DataColumn("Size", typeof(System.String)));

12        dtGridViewSource.Columns.Add(new DataColumn("Type", typeof(System.String)));

13        dtGridViewSource.Columns.Add(new DataColumn("Path", typeof(System.String)));

14        DataRow gridviewRow;

15 

16        //Get All Folders Or Directories and add in table

17        DirectoryInfo directory = new DirectoryInfo(Server.MapPath("~/csharpdotnetfreak.blogspot.com"));

18        DirectoryInfo[] subDirectories = directory.GetDirectories();

19        foreach (DirectoryInfo dirInfo in subDirectories)

20        {

21            gridviewRow = dtGridViewSource.NewRow();

22            gridviewRow["Name"] = dirInfo.Name;

23            gridviewRow["Type"] = "Directory";

24            gridviewRow["Path"] = dirInfo.FullName;

25            dtGridViewSource.Rows.Add(gridviewRow);

26        }

27        //Get files in all directories

28        FileInfo[] files = directory.GetFiles("*.*", SearchOption.AllDirectories);

29        foreach (FileInfo fileInfo in files)

30        {

31            gridviewRow = dtGridViewSource.NewRow();

32            gridviewRow["Name"] = fileInfo.Name;

33            gridviewRow["Size"] = fileInfo.Length;

34            gridviewRow["Type"] = "File";

35            gridviewRow["Path"] = fileInfo.FullName;

36            dtGridViewSource.Rows.Add(gridviewRow);

37         }

38        gridviewDeleteFiles.DataSource = dtGridViewSource;

39        gridviewDeleteFiles.DataBind();

40    }

41 

42protected void gridviewDeleteFiles_RowCommand(object sender, GridViewCommandEventArgs e)

43    {

44        if (e.CommandName == "Delete")

45        {

46            GridViewRow row = gridviewDeleteFiles.Rows[Convert.ToInt32(e.CommandArgument)];

47            string fileName = row.Cells[1].Text;

48            string filePath = row.Cells[4].Text;

49            string type = row.Cells[3].Text;

50            if (type == "File")

51            {

52                System.IO.File.Delete(filePath);

53            }

54            else if (type == "Directory")

55            {

56                System.IO.Directory.Delete(filePath, true);

57 

58            }

59        }

60        FillGridView();

61    }

VB.NET CODE

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01Protected Sub Page_Load(sender As Object, e As EventArgs)

02 FillGridView()

03End Sub

04 

05Private Sub FillGridView()

06 Dim dtGridViewSource As New DataTable()

07 dtGridViewSource.Columns.Add(New DataColumn("Name", GetType(System.String)))

08 dtGridViewSource.Columns.Add(New DataColumn("Size", GetType(System.String)))

09 dtGridViewSource.Columns.Add(New DataColumn("Type", GetType(System.String)))

10 dtGridViewSource.Columns.Add(New DataColumn("Path", GetType(System.String)))

11 Dim gridviewRow As DataRow

12 

13 'Get All Folders Or Directories and add in table

14 Dim directory As New DirectoryInfo(Server.MapPath("~/csharpdotnetfreak.blogspot.com"))

15 Dim subDirectories As DirectoryInfo() = directory.GetDirectories()

16 For Each dirInfo As DirectoryInfo In subDirectories

17  gridviewRow = dtGridViewSource.NewRow()

18  gridviewRow("Name") = dirInfo.Name

19  gridviewRow("Type") = "Directory"

20  gridviewRow("Path") = dirInfo.FullName

21  dtGridViewSource.Rows.Add(gridviewRow)

22 Next

23 'Get files in all directories

24 Dim files As FileInfo() = directory.GetFiles("*.*", SearchOption.AllDirectories)

25 For Each fileInfo As FileInfo In files

26  gridviewRow = dtGridViewSource.NewRow()

27  gridviewRow("Name") = fileInfo.Name

28  gridviewRow("Size") = fileInfo.Length

29  gridviewRow("Type") = "File"

30  gridviewRow("Path") = fileInfo.FullName

31  dtGridViewSource.Rows.Add(gridviewRow)

32 Next

33 gridviewDeleteFiles.DataSource = dtGridViewSource

34 gridviewDeleteFiles.DataBind()

35End Sub

36 

37Protected Sub gridviewDeleteFiles_RowCommand(sender As Object, e As GridViewCommandEventArgs)

38 If e.CommandName = "Delete" Then

39  Dim row As GridViewRow = gridviewDeleteFiles.Rows(Convert.ToInt32(e.CommandArgument))

40  Dim fileName As String = row.Cells(1).Text

41  Dim filePath As String = row.Cells(4).Text

42  Dim type As String = row.Cells(3).Text

43  If type = "File" Then

44   System.IO.File.Delete(filePath)

45  ElseIf type = "Directory" Then

46 

47   System.IO.Directory.Delete(filePath, True)

48  End If

49 End If

50 FillGridView()

51End Sub