Hi Kipo, thanks for your quick reply.

I have a doubt. As I said earlier I am creating a photo gallery for my website. I need to generate thumbnails for the images that I was uploading to the server. And that particular thumbnails should be stored in a particular folder. Could you please let me know "How do I do so"?

Here's the code that I am using to create a Folder with the subfolder named "Thumbs" and to upload files.

Imports System.IO
Imports System.IO.Directory
Imports System.Drawing


Partial Class FolderCreation
    Inherits System.Web.UI.Page  
    Dim currentDir As String
    Dim imgThumb As Image = Nothing
    Dim directorySeparatorChar As Char = Path.DirectorySeparatorChar
    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load               
        If Not Page.IsPostBack Then           
            foldersList()
        End If
    End Sub
    Protected Sub btnCreate_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click               
        Dim root As String = Server.MapPath("~/" + RadioButtonList1.SelectedItem.Text)
        Dim thisPage As String = Request.Path
        currentDir = Request.Params("dir")
        If currentDir Is Nothing Then
            currentDir = root
        End If
        If Not currentDir.StartsWith(root) Then
            currentDir = root
        End If

        doesFileExist(uploadedFile.FileName)       

    End Sub
    Sub DoUpload()
        If Not (uploadedFile.PostedFile Is Nothing) Then
            Try
                message.Text = ""
                Dim postedFile = uploadedFile.PostedFile
                Dim filename As String = Path.GetFileName(postedFile.FileName)
                Dim contentType As String = postedFile.ContentType
                Dim contentLength As Integer = postedFile.ContentLength
                postedFile.SaveAs(currentDir & _
                  directorySeparatorChar.ToString() & filename)
                lblStatus.Text = String.Format( _
                "Uploaded file: {0}<br/>" & _
                "File size (in bytes): {1:N0}<br />" & _
                "Content-type: {2}", _
                uploadedFile.FileName, _
                uploadedFile.FileBytes.Length, _
                uploadedFile.PostedFile.ContentType)               
            Catch ex As Exception
                message.Text = "Failed uploading file"
            End Try
        End If
    End Sub   
    Public Sub doesFileExist(ByVal searchString As String)
        If uploadedFile.FileName <> "" Then
            Dim filename As String           
            filename = Server.MapPath(RadioButtonList1.SelectedItem.Text + "\") & searchString.ToString()
            If File.Exists(filename) Then
                message.Text = "The File which you are trying to upload <b><u>" & searchString & "</b></u> already exists in folder."
                lblStatus.Text = ""
            Else
                DoUpload()                                          
            End If
        Else
            message.Text = ""
        End If
    End Sub   

    Protected Sub Button2_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button2.Click
        doesFolderExist(TextBox1.Text)
    End Sub
    Public Sub doesFolderExist(ByVal searchString As String)
        If TextBox1.Text <> "" Then
            Dim foldername As String
            Dim DirInfo As System.IO.DirectoryInfo
            foldername = Server.MapPath("~\" + TextBox1.Text)
            If Directory.Exists(foldername) Then
                message.Text = "The Event which you are trying to create <b><u>" & searchString & "</b></u> already exists"
                lblStatus.Text = ""
            Else
                DirInfo = System.IO.Directory.CreateDirectory(MapPath("~/" + TextBox1.Text))
                DirInfo.CreateSubdirectory("thumbs")
                message.Text = "Event " & searchString & " created successfully."
            End If
        Else
            message.Text = ""
        End If
        foldersList()
    End Sub
    Sub foldersList()      
        Dim dirInfo As DirectoryInfo = New DirectoryInfo(MapPath("~/"))
        Dim excludedDirs As String() = {"App_Data", "image_gallery", "images", "thumbs", "MAIN", "Background", "backgrounds"}
        RadioButtonList1.DataSource = dirInfo.GetDirectories("*", SearchOption.AllDirectories)
        RadioButtonList1.DataBind()      
        For i As Integer = RadioButtonList1.Items.Count - 1 To 0 Step -1
            For Each excludedDir As String In excludedDirs
                If RadioButtonList1.Items(i).Text = excludedDir Then
                    RadioButtonList1.Items.RemoveAt(i)
                    Exit For
                End If
            Next
        Next       
    End Sub

    Protected Sub RadioButtonList2_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles RadioButtonList2.SelectedIndexChanged
        If RadioButtonList2.SelectedItem.Text = "Create an Event" Then
            MultiView1.ActiveViewIndex = 0
            message.Text = ""
            lblStatus.Text = ""
        ElseIf RadioButtonList2.SelectedItem.Text = "Upload Photos to an Event" Then
            MultiView1.ActiveViewIndex = 1
            lblStatus.Text = ""
            message.Text = ""                   
        End If       
    End Sub
  

End Class
 

 Could you please let me know "How do I write code for generating a thumbnail after uploading an image to a particular folder in server"

Note: The generated thumb nail should be stored in "thumbs" folder.

Thanks and Regards

Sandeep.