Setting The ScriptManager AsyncPostBackTimeout Value On The .NET Content Page?

Jan 14, 2011

I am using Master pages for my ASP.NET website and in one of the content pages I upload a file which requires a bigger timeout value than the default 90 seconds. for other content pages I want to leave the default timeout value as it is. is it possible to set the timeout just for a specific content page? I checked the ScriptManagerProxy component, but it doesn't have this AsyncPostBackTimeout property.

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AJAX :: Setting The ScriptManager AsyncPostBackTimeout Value On The .NET Content Page?

Jan 14, 2011

I am using Master pages for my ASP.NET website and in one of the content pages I upload a file which requires a bigger timeout value than the default 90 seconds. for other content pages I want to leave the default timeout value as it is. is it possible to set the timeout just for a specific content page? I checked the ScriptManagerProxy component, but it doesn't have this AsyncPostBackTimeout property.

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Is It Possible To Put A ScriptManager Control In A Content Page

May 25, 2010

Is it possible to put a ScriptManager Control in a Content Page?I've tried inserting a ScriptManager, UpdatePanel, and ContentTemplate within the ContentPlaceHolder1 of one of my pages and it's not working.

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Using ScriptManager / UpdatePanel In Content Page

Aug 21, 2011

I have a small website that uses 1 masterpage and several content pages. I'm able to insert a <ScriptManager> onto my content pages (just a couple of them). However, when I try to insert the <UpdatePanel>, it won't take it. I tried to wrap the <UpdatePanel> around a <Div> and it didn't like that, so then I tried wrapping the <UpdatePanel> around the actual textbox and it didn't like that. Below is some sample code.


<%@ Page Title="" Language="vb" AutoEventWireup="false" MasterPageFile="~/Site1.Master" CodeBehind="Profile.aspx.vb" Inherits="PF.Profile" %>

<asp:Content ID="Content3" ContentPlaceHolderID="contentProfile" runat="server">
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<div class="ProfileDIV" style="width: 48%;">


How can I incorporate the <ScriptManager>/<UpdatePanel> onto my content pages?

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AJAX :: Page Content Not Updating With ScriptManager.RegisterStartupScript?

Mar 23, 2010

I'm trying to do the next steps:1 - Click in submit Button inside update panel to make some server work - Ok
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function confirmSubmit(buttonId, msg)


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I have an web application of 200 web pages and all has a single master page. Most of the content pages use AJAX controls so most of content pages has its own ScriptManager. Now I have a requirement to add a link with HoverMenuExtender control and for that I need to put ScriptManager in the Master page, but it is working only in the content pages where there is not ScriptManager.

All the other content pages which has ScriptManager throws the error Only one instance of a ScriptManager can be added to the page. I don't want to work on most of the content pages again to remove ScriptManager. Is there any easy way to do this something like coding in Master page which decides if there is already ScriptManager already, then don't load it.

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Setting A Server Control Property From The Content Page?

Oct 27, 2010

I need to validate a textbox to ensure the submit date is older than Today. I wanted to use a CompareValidator to do that, but unfortunately the following code doesn't work:

<asp:CompareValidator ID="cvtbDateExpiration" ControlToValidate="tbDateExpiration"
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Is there a simple way to achieve this (without setting it using the Code Behind)?

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Mar 20, 2010

how to set default button for a asp:Content.

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In one of my content page , i have two divs - div1,div2.

On page load , only the div1 will be visible. On clicking a button inside it the div1 is made to invisible and the second div- div2 is made visible.

At the page load , i want to make the button inside the div1 to be the default one. On its click i want to make the button inside the div2 to be the default one .How can i do that?

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Web Forms :: Content Page - Setting Accept Button

May 12, 2010

I wish to set the accept button for each of my content pages. My Master Page login button is set as the accept button somehow. This is fine for the home page, but not the majority of the other 40 pages. All of my website pages are content pages and they are linked to the master page. They don't have forms, just contentplaceholder tags. Does anyone know if there is a way to programaticaly set the accept button in the code behind of a content page?

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Web Forms :: Setting Relative TabIndex For A Content Page?

Feb 24, 2011

Just posting this up as I've been searching all over the net for the last few hours and not found anything useful. What I need to do is set the tabindex on a content page so that when using keyboard navigation the form controls in one vertical column are selected first, and then the 2nd column. (rather than one row at a time).

My problem is this means that the "skip to content" and all the other links in the master page are bypassed and the first form control with a tabindex!=0 is jumped to. Is there any way to set the tabindex on a content page relative to the previous tabindex from the masterpage? (when no tabindex is set on the master page).

I was hoping at the top of the content page you could set relativetabindex or something like. we use many different masterpages that change fairly frequently so setting the tab index for every control on the page is a really horrible way to get round this. I'm hoping theres a nice .Net way of doing it and no javascript hacking has to be done!

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Web Forms :: Setting The Content Page Background Color Different From The Master Page Back Ground Color

Jul 14, 2010

I have a master page and set it's back ground color in the body tag <body style="background-color:Red">. Now that is fine for the Master page. How do I set the back ground color of the content page to a different color?

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AJAX :: UserControl With ScriptManager And UpdatePanel, Some Pages With ScriptManager?

Feb 8, 2011

I have a user control with both an UpdatePanel and a ScriptManager.

Some pages in the system have a ScriptManager of their own, and need to include the UserControl.

This throws the "You can only have 1 ScriptManager" exception.

If I remove UserControl's ScriptManager, I'll get 'UpdatePanel1 requires a Script Manager" exception.

I've tried to modify the UserControl to dynamically include it's own script manager if none exists. But all the methods I've used before involve adding a delegate to Page.OnInit-- which won't work, since the UserControl Init fires first.

Because the system designers here like making my life difficult, I can't create a MasterPage, or a BasePage for the system in inherit off of. I'd be stuck going to each page an adding a ScriptManager before the UserControl on each of them. Is there any way of, in the UserControl, detecting if the page has a ScriptManager, and if not, adding it dynamically in a way that makes the UpdatePanel happy?

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Web Forms :: Hiding Repeater On Master Page From Content Page / Access From Content Page?

Oct 6, 2010

My project has the following repeater menu shown on the Master Page. I need this menu to remain hidden until the user logs in. How do I access from content page?


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Using Ajax Script To Load Content From An Aspx Page On Another Server Than The Page Calling The Content

Mar 22, 2010

I'm using this Ajax script [URL] to load content from an aspx page on another server than the page calling the content. So far I've learned that this is a no go. The problem seems to be that when using an absolute link to content the script fails as apposed to using a relative link.

I've searched the web for about 10 hours now, and I still haven't found what I'm looking for.

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Web Forms :: Content Controls Are Allowed Only In Content Page That References A Master Page.

Jun 25, 2010

which page need to be checked. Master or Content. I dont think there is anything wrong in the content page.

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Setting Content - Type Of Empty Response In MVC

Dec 27, 2010

In order to support a legacy application that's in the field, I need my ASP.NET MVC app to return an empty response that also has a Content-Type. One of IIS, ASP.NET, or ASP.NET MVC is removing my Content-Type when I send back a null response. Is there any way around this? (While not requiring an empty response with a set Content-Type would obviously be the ideal solution, the clients are already out there, and many of them cannot be upgraded.)

EDIT: Since there was a request for code: I'm proxying the request from the new web application to the one that older clients rely on. To do this, I have a subclass of ActionResult, called LegacyResult, that you can simply return for those methods that need to be handled by the old software. This is the relevant part of its code:

public override void ExecuteResult(ControllerContext context)
using (var legacyResponse = GetLegacyResponse(context))
var clientResponse = context.HttpContext.Response;
clientResponse.Buffer = false;
clientResponse.ContentType = legacyResponse.ContentType; /* Yes, I checked that legacyResponse.ContentType is never string.IsNullOrEmpty */
if (legacyResponse.ContentLength >= 0) clientResponse.AddHeader("Content-Length", legacyResponse.ContentLength.ToString());
var legacyInput = legacyResponse.GetResponseStream();
using (var clientOutput = clientResponse.OutputStream)
var rgb = new byte[32768];
while ((cb = legacyInput.Read(rgb, 0, rgb.Length)) > 0)
clientOutput.Write(rgb, 0, cb);

If legacyInput has data, then Content-Type is set appropriately. Otherwise, it's not. I can actually kluge the old backend to send an empty v. non-empty response for exactly the same request, and observe the difference in Fiddler.

EDIT 2: Poking around with Reflector reveals that, if headers have not been written at the time that HttpResponse.Flush is called, then Flush writes out the headers itself. The problem is that it only writes out a tiny subset of the headers. One of the missing ones is Content-Type. So it seems that, if I can force headers out to the stream, I can avoid this problem.

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Web Forms :: Setting Up Each Of TabPanels.ContentTemplates To Be Content Placeholder

Mar 8, 2010

Is there a benefit from putting a Tabcontainer control on a master page and setting up each of the tabPanels.ContentTemplates to be a content placeholder rather than putting everything into a regular .aspx page?

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Content Controls Allowed Only In Content Page That References A Master Page

Mar 10, 2016

Can I ask what this error refers to, (I have had it twice now over the last couple of days and then it goes away):

System.Web.HttpException: Content controls are allowed only in content page that references a master page.

This is followed by Stack Trace:

[HttpException (0x80004005): Content controls are allowed only in content page that references a master page.]
System.Web.UI.MasterPage.CreateMaster(TemplateControl owner, HttpContext context, VirtualPath masterPageFile, IDictionary contentTemplateCollection) +9744256
System.Web.UI.Page.get_Master() +55
System.Web.UI.Page.ApplyMasterPage() +14
System.Web.UI.Page.PerformPreInit() +51
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1104

I am not using any Content Place Holder or Master Page (does the error refer to the Site.Master file because while I can see it in. Solution Explorer, I never use it. All of my aspx files look like this along the top with no reference to Site.Master:

<%@ Page Language="VB" AutoEventWireup="false" CodeFile="register1.aspx.vb" Inherits="register1" %>

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AJAX :: Add More Than One Scriptmanager Tag In Page?

Mar 14, 2011

I need to that is this possible to add more than one scriptmanager tag in page. If i add, What error msg will come?

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How To Get The Current ScriptManager Without Page

Jan 14, 2011

I'm trying to extend ScriptManager to simplify dealing with resources that have multiple resource files (e.g. more than one script file as well as css). The goal is that I will be able to add a single ScriptReference to Scripts and have it load more than one resource related to that reference name.

What I'm getting stuck on is, how does your basic ScriptManager know what to do with stuff when when using static methods that do not include a Page parameter? For example:

ScriptManager.ScriptResourceMapping.AddDefinition("someName", new
ScriptResourceDefinition { Path="/script/somescript.js"});

This adds a definition to (I guess) whatever the active script manager is for the page that's running when you call it. But unlike the old-school methods, like RegisterClientScriptBlock there is no parameter passed that identifies the page. But this stuff must get stored in the ScriptManager object, no? So how does it know?

I could always get a reference to the active one with this:


but ideally, I would create new methods that work exactly like Microsoft's. I can't figure out how I could implement something like

ScriptManager.ScriptResourceMapping.AddDefinition(string name,
ScriptResourceDefinition definition,
ResourceType type)

that could figure out the object instance to add the stuff into without having to add a Page parameter.

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Setting The Content-length Based On The Size Of The HTML String?

Nov 3, 2010

I am exporting a HTML table to excel by sending the data as a HTML Table string and setting the content headers:


Is there a simple way of setting the content-length based on the size of the HTML string? Or should I just leave it blank anyway...would be nice to have the content-length ideally...

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AJAX :: ScriptManager Not Found On The Page (although It Is On Page)?

Feb 3, 2011

I've upgraded my web application from ASP.NET 2.0 framework to 3.5. I've also updated AJAX toolkit from 2.0 to 3.5. The updated was made on 20th of January.

However today the application started giving me error that there is no ScriptManager on the page although it's (I'm using AJAX ModalPopupExtender on 2 pages). I didn't change anything on the pages except yesterday I've added one ASCX control to both pages but problem doesn't disappear even if I remove the control.

Basically the thing stopped working for no particular reason. I will try to reinstall the AJAX toolkit and I think that there are maybe somethings to change in web config but it's strange since it worked perfectly until few hours ago.

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Getting A Scriptmanager Into A Dynamically Rendered Page?

Apr 13, 2010

We are rendering usercontrols dynamically like this:


This lets us the same user controls when rendering pages normally as we do when rendering responses to ajax calls. However, when adding controls which themselves contain a scriptmanagerProxy we run into the problem that the newed up Page object doesn't contain either a ScriptManager or the HtmlForm in which the ScriptManager needs to run.

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Only One Instance Of A Scriptmanager Can Exist On A Page?

May 13, 2010

I design an ASP.NET web usercontrol and with a maskeditor and scriptmanager, I always get an object reference not set to an instance of an object exception at runtime.

Stacktrace is:

[InvalidOperationException: Only one instance of a ScriptManager can be added to the page.]
System.Web.UI.ScriptManager.OnInit(EventArgs e) +384613
System.Web.UI.Control.InitRecursive(Control namingContainer) +333
System.Web.UI.Control.InitRecursive(Control namingContainer) +210
System.Web.UI.Control.InitRecursive(Control namingContainer) +210
System.Web.UI.Control.InitRecursive(Control namingContainer) +210
System.Web.UI.Control.InitRecursive(Control namingContainer) +210
System.Web.UI.Control.InitRecursive(Control namingContainer) +210
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +378

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AJAX :: How To Use ScriptManager And ToolKitScriptManager In Same Web Page

May 7, 2015

<asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager>

I am using this with update panel it works fine.

Now i have added modal popup. Used ajax 15.1 toolkit. they said it doesnt require ajax script manager now.)

When i use it without ajaxscript manager  it doesnt work. But when i use ajaxscript manager it works. But then i cant use scriptmanager (as two instance cant run).If i dont use script manager update panel wont work. Also i dont dont have any master page.

<cc1:ModalPopupExtender ID="mp1" runat="server" PopupControlID="Panel1" TargetControlID="btnShow"
CancelControlID="btnClose" BackgroundCssClass="modalBackground">
<cc1:ToolkitScriptManager ID="tksc" runat="server"></cc1:ToolkitScriptManager>

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