Le type ou le nom d'espace de noms 'ToolkitScriptManager" n'existe pas dans l'espace de noms du Système".Web.L'INTERFACE utilisateur.Contrôles webcontrols'

J'obtiens les erreurs suivantes

  The type or namespace name 'ToolkitScriptManager' does not exist in the namespace 'System.Web.UI.WebControls' (are you missing an assembly reference?)  
  The type or namespace name 'ModalPopupExtender' does not exist in the namespace 'System.Web.UI.WebControls' (are you missing an assembly reference?)  
  The type or namespace name 'Accordion' does not exist in the namespace 'System.Web.UI.WebControls' (are you missing an assembly reference?)   

J'ai installé ajaxControlToolKit et je l'ai déjà dans mon web.fichier de configuration

<pages controlRenderingCompatibilityVersion="3.5" clientIDMode="AutoID"><controls>
    <add tagPrefix="ajaxToolkit" assembly="AjaxControlToolkit" namespace="AjaxControlToolkit" />
  </controls></pages>

Mon .page aspx

 <%@ Page Language="C#" AutoEventWireup="true"       CodeBehind="PaintBrushCanvas.aspx.cs" Inherits="VirtualClassroom.PaintBrushCanvas" %>
 <%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="ajaxToolkit" %>
 <!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Paint Brush</title>
 <style type="text/css">
  #container { position: relative; overflow: auto; scrollbar-base-color:#ffeaff;  }
  #imageView { border: 1px dashed #CCCCCC; margin: 5px; border-style: dotted; border-width: 1px; background-color: #FFFFFF; vertical-align: top;  }
  #imageTemp { position: absolute; top: 1px; left: 1px; margin: 5px; }
  #imageTempt { position: absolute; top: 1px; left: 1px; margin: 5px; }
</style>
<link href="../StyleSheet.css" rel="stylesheet" type="text/css" />   
<script type="text/javascript" src="CanvasUtils.js"></script>

 <script type="text/javascript">
    window.moveTo(0, 0);
    window.resizeTo(screen.width, screen.height);
 </script>
</head>

<asp:ToolkitScriptManager ID="ToolkitScriptManager1" runat="server" EnablePageMethods="true">
</asp:ToolkitScriptManager>
<asp:ModalPopupExtender ID="ModalPopupExtender1" runat="server" BehaviorID="MPBehaviorIDOpen" 
TargetControlID="btnPopupRender" PopupControlID="panelOpen" BackgroundCssClass="modalBackground"
PopupDragHandleControlID="panelOpenHead" OkControlID="btnOKOpen" CancelControlID="btnCancelOpen" /> 
<asp:ModalPopupExtender ID="ModalPopupExtender2" runat="server" BehaviorID="MPBehaviorIDResize" 
TargetControlID="btnPopupRender" PopupControlID="panelPageSize" BackgroundCssClass="modalBackground"
PopupDragHandleControlID="panelPageSizeHead" OkControlID="btnPageSizeOK" CancelControlID="btnPageSizeCancel" /> 
<div>
<asp:Button id="btnPopupRender" Height="0px" Width="0px" runat="server" style="display:none;" />
</div>
<table style="height: 100%; vertical-align: top; width: 100%;">
<tr>
<td style="height: 100%; vertical-align: top;">
<asp:Accordion ID="MyAccordion" runat="server" SelectedIndex="0" 
HeaderCssClass="accordionHeader" ContentCssClass="accordionContent" 
FadeTransitions="true" FramesPerSecond="40" TransitionDuration="250"
AutoSize="None" CssClass="accordionStyle" Width="140">
<Panes>
<asp:AccordionPane ID="AccordionPane1" runat="server">
<Header>Toolbox</Header>
<Content>
<asp:ImageButton ID="btnOpen" runat="server"  Width="40px" Height="40px"
OnClientClick="ShowPopup(event,'MPBehaviorIDOpen'); return false;" ImageUrl="~/Images/open.png" /><br />
<asp:Label ID="Label1" runat="server" Text="Open"></asp:Label><br /> <br />
<asp:ImageButton ID="btnPageSize" runat="server"  Width="40px" Height="40px"
OnClientClick="ShowPopup(event,'MPBehaviorIDResize'); return false;" ImageUrl="~/Images/paperSettings.png" /><br />
<asp:Label ID="Label5" runat="server" Text="Page Size"></asp:Label><br /> <br />
<asp:ImageButton ID="btnDraw" runat="server"  Width="40px" Height="40px" 
OnClientClick="SelectTool('pencil'); return false;" ImageUrl="~/Images/draw.png" /><br />
<asp:Label runat="server" Text="Draw"></asp:Label><br /><br />
<asp:ImageButton ID="btnText" runat="server" Width="40px" Height="40px" 
OnClientClick="SelectTool('text'); return false;" ImageUrl="~/Images/text.png" /><br />
<asp:Label ID="Label2" runat="server" Text="Text"></asp:Label><br /><br />
<asp:ImageButton ID="btnLine" runat="server" Width="40px" Height="40px" 
OnClientClick="SelectTool('line'); return false;" ImageUrl="~/Images/line.png" /><br />
<asp:Label runat="server" Text="Line"></asp:Label><br /><br />
<asp:ImageButton ID="btnSquare" runat="server" Width="40px" Height="40px" 
OnClientClick="SelectTool('rect'); return false;" ImageUrl="~/Images/square.png" /><br />
<asp:Label runat="server" Text="Square"></asp:Label><br /><br />
<asp:ImageButton ID="btnSave" runat="server" Width="40px" Height="40px" 
OnClientClick="SaveDrawings();return false;"  ImageUrl="~/Images/save.png" /><br />
<asp:Label ID="Label11" runat="server" Text="Save"></asp:Label><br /><br />
<asp:ImageButton ID="btnExit" runat="server" Width="40px" Height="40px" 
OnClientClick="Exit();return false;"  ImageUrl="~/Images/exit.png" /><br />
<asp:Label ID="Label3" runat="server" Text="Exit"></asp:Label><br /><br />
</Content>
</asp:AccordionPane>
</Panes>
</asp:Accordion>
</td>
<td style="height: 100%; vertical-align: top; ">
<div id="container">
<canvas id="imageView"></canvas> 
</div>
</td>
</tr>
</table>
<div id="panelOpen" class="modalPopup" style="display:none;">
<div id="panelOpenHead" class="popupHeader">
<p>Choose File</p>
</div>
<div style="text-align:center;">
<p>
<input id="fileUploadImg" type="file" accept="image/*"  />
</p>
<p>
<input type="button" id="btnOKOpen" value="OK" onclick="UpdateCanvas(); return false;" />
<input type="button" id="btnCancelOpen" value="Cancel" />
</p>
</div>
</div>
<div id="panelPageSize" class="modalPopup" style="display:none;">
<div id="panelPageSizeHead" class="popupHeader">
<p>Page Size</p>
</div>
<div style="text-align:center;">
<p>
Enter Width: <input type="text" id="txtWidth" style="width:100px;" /> px
</p>
<p>
Enter Height: <input type="text" id="txtHeight" style="width:100px;" /> px
</p>
<p>
<input type="button" id="btnPageSizeOK" value="OK" onclick="Resize(); return false;" />
<input type="button" id="btnPageSizeCancel" value="Cancel" />
</p>
</div>
</div>
</form>
</body>
</html>

C'est mon web.fichier de configuration

  <?xml version="1.0" encoding="utf-8"?>
<!--
For more information on how to configure your ASP.NET application, please    visit
http://go.microsoft.com/fwlink/?LinkId=169433
-->
<configuration>
<configSections>
<sectionGroup name="system.web.extensions"      type="System.Web.Configuration.SystemWebExtensionsSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
<sectionGroup name="scripting" type="System.Web.Configuration.ScriptingSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
<section name="scriptResourceHandler" type="System.Web.Configuration.ScriptingScriptResourceHandlerSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication"/>
<sectionGroup name="webServices" type="System.Web.Configuration.ScriptingWebServicesSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
<section name="jsonSerialization" type="System.Web.Configuration.ScriptingJsonSerializationSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="Everywhere"/>
<section name="profileService" type="System.Web.Configuration.ScriptingProfileServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication"/>
<section name="authenticationService" type="System.Web.Configuration.ScriptingAuthenticationServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication"/>
<section name="roleService" type="System.Web.Configuration.ScriptingRoleServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication"/>
</sectionGroup>
</sectionGroup>
</sectionGroup>
</configSections>
<connectionStrings>
<add name="DBCS" connectionString="data source=.; database=xxx; integrated    security=SSPI" providerName="System.Data.SqlClient" />
</connectionStrings>
<system.web>
<compilation debug="true" targetFramework="4.5" />
<authentication mode="Forms">
<forms loginUrl="SelectUser.aspx" defaultUrl="SelectUser.aspx" />
</authentication>
<authorization>
<deny users="?" />
</authorization>
<membership>
<providers>
<clear />
<add name="AspNetSqlMembershipProvider"    type="System.Web.Security.SqlMembershipProvider" connectionStringName="ApplicationServices" enablePasswordRetrieval="false" enablePasswordReset="true" requiresQuestionAndAnswer="false" requiresUniqueEmail="false" maxInvalidPasswordAttempts="5" minRequiredPasswordLength="6" minRequiredNonalphanumericCharacters="0" passwordAttemptWindow="10" applicationName="/" />
</providers>
</membership>
<profile>
<providers>
<clear />
<add name="AspNetSqlProfileProvider"   type="System.Web.Profile.SqlProfileProvider" connectionStringName="ApplicationServices" applicationName="/" />
</providers>
</profile>
<roleManager enabled="false">
<providers>
<clear />
<add name="AspNetSqlRoleProvider"   type="System.Web.Security.SqlRoleProvider" connectionStringName="ApplicationServices" applicationName="/" />
<add name="AspNetWindowsTokenRoleProvider" type="System.Web.Security.WindowsTokenRoleProvider" applicationName="/" />
</providers>
</roleManager>
<pages controlRenderingCompatibilityVersion="3.5" clientIDMode="AutoID"><controls>
<add tagPrefix="ajaxToolkit" assembly="AjaxControlToolkit" namespace="AjaxControlToolkit" />
<add tagPrefix="asp" namespace="System.Web.UI.WebControls" assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
</controls></pages>
</system.web>
<system.webServer>
<modules runAllManagedModulesForAllRequests="true" />
</system.webServer>
<assemblies>
<add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral,      PublicKeyToken=B77A5C561934E089"/>
<add assembly="System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
<add assembly="System.Web.Extensions.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
<add assembly="System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
</assemblies>
<runtime>
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
<dependentAssembly>
<assemblyIdentity name="Microsoft.Owin"        publicKeyToken="31bf3856ad364e35" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-3.0.0.0" newVersion="3.0.0.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="Microsoft.Owin.Security" publicKeyToken="31bf3856ad364e35" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-3.0.0.0" newVersion="3.0.0.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="Microsoft.WindowsAzure.Storage" publicKeyToken="31bf3856ad364e35" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-2.1.0.4" newVersion="2.1.0.4" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="HtmlAgilityPack" publicKeyToken="bd319b19eaf3b43a" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-1.4.9.0" newVersion="1.4.9.0" />
</dependentAssembly>
</assemblyBinding>
</runtime>
</configuration>

J'ai goggled à se débarrasser de cette erreur, mais je ne peux pas.S'il vous plaît aider.Merci à l'avance!!!!

OriginalL'auteur Anusha | 2015-01-27