deleting temp internet files

Hi everybody

I had a page to update user picture and redirect user to login page, the problem is when a user re-login, the old picture is still available until user refresh the page.

notes: I have already use <&#37;@ output> but not working with master page
and also have used Response.Cache.SetCacheability(HttpCacheability.NoCache) and also not working

here is my code:

Code:

---

Protected Sub btnUpdate_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnUpdate.Click
       
        'Updating User Pic
        fuUserPic.PostedFile.SaveAs(Server.MapPath("~\Images\UserPic\" & UserID & ".jpg"))

        Response.Cache.SetCacheability(HttpCacheability.NoCache)
     
        FormsAuthentication.SignOut()
        FormsAuthentication.RedirectToLoginPage("msg=Please login again")
    End Sub

---

please what can I do to delete temp internet files to display picture after updating?

Try this one

Quote:

---

Response.CacheControl = "no-cache";
Response.Expires = -1;

response.ExpiresAbsolute = new DateTime(1900, 1, 1);
response.Cache.SetCacheability(HttpCacheability.NoCache);

Response.AppendHeader("Pragma", "no-cache");
Response.AppendHeader("Cache-Control", "no-cache");

---

thank you danasegarane for help

but the problem not working.

bintaleb

Hello,

Is it possible that you can show us the complete code and markup for the whole page(s)?

Gary

Hi all

markup and code:

Code:

---

<%@ Page Title="" Language="vb" AutoEventWireup="false" MasterPageFile="~/Site.Master" CodeBehind="test.aspx.vb" Inherits="CubeEval.test" %>
<asp:Content ID="Content1" ContentPlaceHolderID="HeadContent" runat="server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server">
 
   
<div>
<div>
    <asp:ValidationSummary ID="ValidationSummary1" runat="server"
        CssClass="failureNotification" ValidationGroup="UpdateButton" />
</div>

<div>
</div>
<div>
<div>
    <asp:Label ID="lblUpload" runat="server"></asp:Label>
</div>
<div>
<asp:FileUpload ID="fuUserPic" runat="server" />
    <asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server"
        ControlToValidate="fuUserPic" Display="Dynamic"
        ErrorMessage="jpg or JPG Image extention." SetFocusOnError="True"
        ToolTip="jpg or JPG Image extention." ValidationExpression="^.+(.jpg|.JPG)$"
        ValidationGroup="UpdateButton" CssClass="failureNotification">*</asp:RegularExpressionValidator>
    <asp:CustomValidator ID="CustomValidator2" runat="server"
        ControlToValidate="fuUserPic" ErrorMessage="Uplaoed file should be less than 5 kb."
        ValidationGroup="UpdateButton" CssClass="failureNotification" OnServerValidate="CheckUploadedFile"
        Display="Dynamic" SetFocusOnError="True"
        ToolTip="Uplaoed file should be less than 5 kb." >*</asp:CustomValidator>
</div>
</div>
<div>
    <asp:Button ID="btnUpdate" runat="server"
        Text="<%$ Resources:Default, Update %>" ValidationGroup="UpdateButton" />
</div>
 
</div>

</asp:Content>

---

Code:

---

Public Class UpdateUserProfile
    Inherits BasePage
   
    Protected Sub btnUpdate_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnUpdate.Click
       
        'Updating User Pic
        fuUserPic.PostedFile.SaveAs(Server.MapPath("~\Images\UserPic\" & UserID & ".jpg"))

        'Response.CacheControl = "no-cache"
        'Response.Expires = -1

        'Response.ExpiresAbsolute = New DateTime(1900, 1, 1)
        'Response.Cache.SetCacheability(HttpCacheability.NoCache)

        'Response.AppendHeader("Pragma", "no-cache")
        'Response.AppendHeader("Cache-Control", "no-cache")

        Response.Cache.SetCacheability(HttpCacheability.NoCache)
     
        FormsAuthentication.SignOut()
        FormsAuthentication.RedirectToLoginPage("msg=Please login again")
    End Sub

    Protected Sub CheckUploadedFile(ByVal sender As Object, ByVal args As ServerValidateEventArgs) Handles CustomValidator2.ServerValidate
        If fuUserPic.FileBytes.Length < 5000 Then
            args.IsValid = True
        Else
            args.IsValid = False
        End If
    End Sub
End Class

---

i think u are setting no cache in the wrong place. you are doing it on button click. it should be done on Page_Load:

Code:

---

Public Sub Form_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load

        If Not Page.IsPostBack Then

            Response.Cache.SetCacheability(HttpCacheability.NoCache)
            Response.Cache.SetAllowResponseInBrowserHistory(False)

        End If

    End Sub

---

I'm just guessing here

I think Nitesh could be onto something here.

I take it you "want" to use Caching though, is that correct? Or, are you looking into caching to try to fix a problem?

Gary

sorry to being late

the problem still have not been solved

I want to clean Caching to be able to display new picture.

bintaleb

Hello,

My question was really aimed at whether you actually "need" caching at all? What benefit is it serving in this instance? Can you not simply remove the caching altogether?

Gary

Quote:

---

Originally Posted by gep13

Hello,

My question was really aimed at whether you actually "need" caching at all? What benefit is it serving in this instance? Can you not simply remove the caching altogether?

Gary

---

Hello
please forget that idea to clean caching, I explain my problem in the beginning after updating user picture and re-login the user can't see the new picture which has been updated except refresh the page.

may be I was thinking the problem will be solved when I clean the caching.

bintaleb