CODEWITHSUNDEEP
c#asp.netajaxupdatepanelscriptmanager
Michael Tot Korsgaard
Michael Tot Korsgaard

Reputation: 4014

Scriptmanager on one page, but the Panel on another

Im having a .Master page with

   <asp:ScriptManager ID="ScriptManager" runat="server" />
        <asp:UpdatePanel runat="server" id="UpdatePanel" updatemode="Conditional">
            <ContentTemplate>
                <asp:ContentPlaceHolder ID="MasterIndhold_Member" runat="server">
                </asp:ContentPlaceHolder>

And inside the ContentPlaceHolder I got an Panel with a FileUpload. The thing is that the FileUpload doesn't find the file. Here I want to add RegisterAsyncPostBackControl to the Scriptmanager, but how do I do this when the panel is on another page?

The nested page code looks like this

<asp:Content ID="Content3" ContentPlaceHolderID="MasterIndhold_Member" runat="server">
    <asp:panel runat="server" ID="Panel_MyProfile_Member" Visible="false">
        <asp:FileUpload ID="File1" runat="server" />
            <asp:LinkButton ID="LinkUploadImageMember" runat="server" onclick="LinkUploadImageMember_Click">Upload</asp:LinkButton>

And the CodeBehind for the FileUpload Looks like this

protected void LinkUploadImageMember_Click(object sender, EventArgs e)
    {
        if (File1.HasFile == true)
        {
            if ((File1.PostedFile.FileName.EndsWith(".jpg")) || (File1.PostedFile.FileName.EndsWith(".jpeg")) || (File1.PostedFile.FileName.EndsWith(".png")))
            {
                    byte[] input = File1.FileBytes;
                    Bruger.UploadImage(input, int.Parse(Request.QueryString["ID"]));
            }
        }
    }

Please keep code examples to C# and ASP.NET as I'm new to this stuff ^^

Thanks

Upvotes: 1

Views: 1477

Answers (1)

slfan
slfan

Reputation: 9129

You could also use the ScriptManagerProxy class if you need a ScriptManager on your content page, but I'm not sure whether you need this at all. Do you really need an UpdatePanel on every content page? (because you declared it on the master page). I think it might be better to declare the UpdatePanel within the content page.

Try to define a trigger for your linkbutton, otherwise HasFiles is always false

<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional">
  <Triggers>
    <asp:PostBackTrigger ControlID="LinkUploadImageMember" />
  </Triggers>

  <ContentTemplate>
    <asp:FileUpload ID="File1" runat="server" />
    <asp:LinkButton ID="LinkUploadImageMember" runat="server" Text=" upload " />
  </ContentTemplate>
</asp:UpdatePanel>

If you cannot remove the UpdatePanel from the Masterpage, you could expose a property on the masterpage that gives access the updatepanel, like this:

public UpdatePanel MyUpdatePanel 
{
    get { return UpdatePanel1; }
}

From the contentpage you can access the update panel and update the triggers programmatically:

protected void Page_Load(object sender, EventArgs e)
{
        ((Site)Master).MyUpdatePanel.Triggers.Add(new PostBackTrigger() {
              ControlID = LinkUploadImageMember.UniqueID });
}

Upvotes: 2

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