The ScriptManager must appear before any controls that need it

Question

I have created a new ASP NET Web Application  and after debugging i got Server Error     The control with ID  WaitingPopup1  requires a ScriptManager on the page  The ScriptManager must appear before any controls that need it     I m new with ASP NET so where schould i install my ScriptManager  in the web config

User · Answer

with a head tag with runat  server  inside a form tag with runat  server  before the ContentPanels that contain controls that require it - typical controls with UpdatePanels                   lt   PageTitle                                                                                                        lt  form gt    lt  body gt

User · Answer

The ScriptManager is a control that needs to be added to the page you have created   Take a look at this Sample AJAX Application    lt body gt       lt form runat  server  gt           lt asp ScriptManager ID  ScriptManager1  runat  server  gt  lt  asp ScriptManager gt                   lt  form gt   lt  body gt

User · Answer

If you are using microsoft ajax on your page you need the script manager control added to your master page or the page that needs it  It Manages ASP NET Ajax script libraries and script files  partial-page rendering  and client proxy class generation for Web and application services   lt asp ScriptManager ID  ScriptManger1  runat  Server  gt   lt  asp ScriptManager gt    The full usage   lt asp ScriptManager     AllowCustomErrorsRedirect  True False      AsyncPostBackErrorMessage  string      AsyncPostBackTimeout  integer      AuthenticationService-Path  uri      EnablePageMethods  True False      EnablePartialRendering  True False      EnableScriptGlobalization  True False      EnableScriptLocalization  True False      EnableTheming  True False      EnableViewState  True False      ID  string      LoadScriptsBeforeUI  True False      OnAsyncPostBackError  AsyncPostBackError event handler      OnDataBinding  DataBinding event handler      OnDisposed  Disposed event handler      OnInit  Init event handler      OnLoad  Load event handler      OnPreRender  PreRender event handler      OnResolveScriptReference  ResolveScriptReference event handler      OnUnload  Unload event handler      ProfileService-LoadProperties  string      ProfileService-Path  uri      RoleService-LoadRoles  True False      RoleService-Path  uri      runat  server      ScriptMode  Auto Inherit Debug Release      ScriptPath  string      SkinID  string      SupportsPartialRendering  True False      Visible  True False  gt           lt AuthenticationService             Path  uri    gt           lt ProfileService             LoadProperties  string              Path  uri    gt           lt RoleService             LoadRoles  True False              Path  uri    gt           lt Scripts gt               lt asp ScriptReference                 Assembly  string                  IgnoreScriptPath  True False                  Name  string                  NotifyScriptLoaded  True False                  Path  string                  ResourceUICultures  string                  ScriptMode  Auto Debug Inherit Release    gt           lt  Scripts gt           lt Services gt               lt asp ServiceReference                 InlineScript  True False                  Path  string    gt           lt  Services gt   lt  asp ScriptManager gt

User · Answer

The ScriptManager is a web control that you register in the page using   lt asp ScriptManager ID  ScriptManger1  runat  Server    gt    inside the Form tag

User · Answer

There many cases where script Manager may give problem like that  you Try This First add Script Manager in appropriate Placeholder or any place Holder which appears before the content in which Ajax Control is used    We need to add ScriptManager while using any AJAX Control not only update Panel   lt asp ScriptManager ID  ScriptManger1  runat  Server    gt  If you are using Latest Ajax Control Toolkit  I am not sure about version 4 0 or 4 5  you need to use that Particular ToolkitScriptManager and not ScriptManager from default Ajax Extensions  You can use only one ScriptManager or ToolKitScriptManager on page  If you have added it on Master Page you no need to add it again on Web Page   The problem mentioned here may because of ContentPlaceHolder Please Check how many content place holders you have on your master page  Lets take an example if you have 2 content Placeholders  Head  and  ContentPlaceHolder1  on Master Page and ContentPlaceHolder1 is your Content Page please check below code I added here my ScriptManager on Second Placeholder just below there is update panel         lt  DOCTYPE html gt    lt html xmlns  http   www w3 org 1999 xhtml  gt   lt head runat  server  gt       lt title gt  lt  title gt       lt asp ContentPlaceHolder id  head  runat  server  gt       lt  asp ContentPlaceHolder gt   lt  head gt   lt body gt       lt form id  form1  runat  server  gt       lt div gt           lt asp ContentPlaceHolder id  MainContent  runat  server  gt           lt asp ScriptManager ID  ScriptManger1  runat  Server    gt             lt asp UpdatePanel ID  UpdatePanel1  runat  server  gt       lt ContentTemplate gt       lt  ContentTemplate gt   lt  asp UpdatePanel gt           lt  asp ContentPlaceHolder gt       lt  div gt       lt  form gt   lt  body gt   lt  html gt     Most of us make mistake while designing web form when we choose masterpage by default on web page there are equal number of placeholders as of MasterPage    lt    Page Title    Language  C   MasterPageFile    Master Pages Home master  AutoEventWireup  true  CodeFile  frmCompanyLogin aspx cs  Inherits  Authentication frmCompanyLogin    gt    lt asp Content ID  Content1  ContentPlaceHolderID  head  Runat  Server  gt   lt  asp Content gt   lt asp Content ID  Content2  ContentPlaceHolderID  MainContent  Runat  Server  gt   lt  asp Content gt    We no need to remove any PlaceHolder it is guiding structure but you must have to add the web form Contents in Same PlaceHolder where you added your ScriptManager on Master Page  or add Script Manager in appropriate Placeholder or any place Holder which appears before the content in which Ajax Control is used

User · Answer

On the ASP NET page  inside the form tags

User · Answer

The script manager must be put onto the page before it is used  This would be directly on the page itself  or alternatively  if you are using them  on the Master Page   The markup would be     lt asp ScriptManager ID  ScriptManager1  runat  server  LoadScriptsBeforeUI  true              EnablePartialRendering  true    gt

User · Answer

You can add your Script Manager tags just below the  lt Form gt  tag of your page  Here is how you can place your Script Manager tag        lt asp ScriptManager ID  ScriptManager1  runat  server  gt       lt  asp ScriptManager gt    If you are using Master Pages  its recommended to use your Script Manager in  your Master page so that you do not have to write it again and again on every page that contains AJAX controls

User · Answer

It simply wants the ASP control on your ASPX page   I usually place mine right under the  tag  or inside first Content area in the master s body  if your using a master page    lt body gt       lt form id  form1  runat  server  gt           lt asp ScriptManager ID  scriptManager  runat  server  gt  lt  asp ScriptManager gt           lt div gt               Content           lt  div gt       lt  form gt   lt  body gt

User · Answer

Just put ScriptManager inside form tag like this    lt form id  form1  runat  server  gt       lt asp ScriptManager ID  ScriptManager1  runat  server  gt       lt  asp ScriptManager gt     If it has Master Page then Put this in the Master Page itself

[asp.net] The ScriptManager must appear before any controls that need it

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