PreRender in ASP.NET Master Page not firing

Question

Both Page_PreRender and Page_Load do not work in the Master Page I am working with. Page_Init does, however, for any reason. AutoEventWireup is set to true.

public partial class MyMaster : MasterPage
{
    public MyMaster()
    {
        // tried this too, but doesn't matter whether this LoC
        // is there or not
        this.PreRender += Page_PreRender;
    }

    protected void Page_PreRender(object sender, EventArgs e)
    {
        // does not fire
    }
}

I tried it out in an empty Web Project as well. There it works fine.

Edit: I figured out that setting EnableViewState to true fixes it:

<%@ Master Language="C#" MasterPageFile="~/MainMaster.master" AutoEventWireup="true"
    CodeBehind="MyMaster.master.cs" Inherits="MyMaster" EnableViewState="false" %>

But I do not want the ViewState to be enabled. Overriding OnPreRender works as well, no matter what value EnableViewState has. Now I'm wondering why, and just using the override way seems a hacky to me. Can anybody help?

why do you expect that the method Pool will be called at all inside the class myMaster? — Davide Piras, Dec 08 '11 at 12:52
Sorry, this is the constructor. Copy+paste-fail while copying code from several windows into the post. — Matthias Meid, Dec 08 '11 at 12:53
I do. This works great so far, including ASP.NET correctly wiring and invoking `Page_Init`. — Matthias Meid, Dec 08 '11 at 12:58
@Mudu - You have to post markup and code-behind of "said" master page. Read this thread too - http://stackoverflow.com/questions/1168189/prerender-event-is-not-fired — KV Prajapati, Dec 08 '11 at 13:24
AVD, I updated the question with more information. I think I could narrow down the significant markup to this single line. Hope it helps. — Matthias Meid, Dec 08 '11 at 13:46

score -1 · Answer 1 · answered Dec 08 '11 at 12:59

-1

I suggest to use AutoEventWireup in the page directive, so would you please try as below:

In your page directive <%@ Page ..., use AutoEventWireup="true" and in your master page, remove PreRender event subscription:

public MyMaster()
{
    // tried this too, but doesn't matter whether this LoC
    // is there or not
    //this.PreRender += Page_PreRender;
}

Hope everything is fine now, thanks for your time.

Edit: Please check in your web.config file and ensure that AutoEventWireup is not set to False.

answered Dec 08 '11 at 12:59

Elias Hossain

4,410
1
19
33

Thanks to you Elias. Unfortunately is isn't yet. I double-checked my code, and everything is like you suggested. – Matthias Meid Dec 08 '11 at 13:05
This is totally nonsense @Mudu, you should try first and should let me know, thanks for your time. – Elias Hossain Dec 08 '11 at 13:05
We must have misunderstood each other. I did indeed try what you wrote, but it is not working. Besides, I did not vote down your answer, in case you feel offended. – Matthias Meid Dec 08 '11 at 13:13
Oh, sorry for blaming you, however I'm sure the voter did it intentionally without testing or without reading. – Elias Hossain Dec 08 '11 at 13:19

PreRender in ASP.NET Master Page not firing

1 Answers1