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asp.net - 类型或命名空间名称 'ToolkitScriptManager' 在命名空间 'System.Web.UI.WebControls' 中不存在

转载 作者：行者123 更新时间：2023-12-02 09:42:28 27 4
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我收到以下错误

  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?)

我已经安装了 ajaxControlToolKit 并且我的 web.config 文件中有它

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

我的 .aspx 页面

 <%@ 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>

这是我的 web.config 文件

  <?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>

我已经竭尽全力摆脱这个错误，但我做不到。请帮忙。提前致谢!!

最佳答案

关于asp.net - 类型或命名空间名称 'ToolkitScriptManager' 在命名空间 'System.Web.UI.WebControls' 中不存在，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/28165184/

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