基于ASP.NETAJAX的WebPart开发与部署-转

原文链接：http://www.cnblogs.com/dnmidi/archive/2007/10/21/932417.html

• 本文中的信息都是收集来的，来源很多，无法一一列出，望见谅。内容仅作为个人的知识管理。 WindowsSharePointServicesv3基于ASP.NET2.0构建。MicrosoftASP.NETAJAX1.0在MOSS之后推出，因此在某些情况下,ASP.NETAJAX和SharePoint之间存在一些兼容性问题，这些问题将会在

•  
  为MicrosoftASP.NETAJAX1.0扩展SharePointweb.config
  我们需要为Ajax注册一些特定的条目。编辑SharePoint的web.config文件，该文件通常位于如下目录：

   

  
  c:\inetpub\wwwroot\wss\virtualdirectories\80
   添加<sectionGroup>元素到 <configSections>标记：<configSections>
        <sectionGroupname="system.web.extensions"type="System.Web.Configuration.SystemWebExtensionsSectionGroup,System.Web.Extensions,Version=1.0.61025.0,Culture=neutral,PublicKeyToken=31bf3856ad364e35">
       <sectionGroupname="scripting"type="System.Web.Configuration.ScriptingSectionGroup,System.Web.Extensions,Version=1.0.61025.0,Culture=neutral,PublicKeyToken=31bf3856ad364e35">
           <sectionname="scriptResourceHandler"type="System.Web.Configuration.ScriptingScriptResourceHandlerSection,System.Web.Extensions,Version=1.0.61025.0,Culture=neutral,PublicKeyToken=31bf3856ad364e35"requirePermission="false"allowDefinition="MachineToApplication"/>
         <sectionGroupname="webServices"type="System.Web.Configuration.ScriptingWebServicesSectionGroup,System.Web.Extensions,Version=1.0.61025.0,Culture=neutral,PublicKeyToken=31bf3856ad364e35">
           <sectionname="jsonSerialization"type="System.Web.Configuration.ScriptingJsonSerializationSection,System.Web.Extensions,Version=1.0.61025.0,Culture=neutral,PublicKeyToken=31bf3856ad364e35"requirePermission="false"allowDefinition="Everywhere"/>
           <sectionname="profileService"type="System.Web.Configuration.ScriptingProfileServiceSection,System.Web.Extensions,Version=1.0.61025.0,Culture=neutral,PublicKeyToken=31bf3856ad364e35"requirePermission="false"allowDefinition="MachineToApplication"/>
           <sectionname="authenticationService"type="System.Web.Configuration.ScriptingAuthenticationServiceSection,System.Web.Extensions,Version=1.0.61025.0,Culture=neutral,PublicKeyToken=31bf3856ad364e35"requirePermission="false"allowDefinition="MachineToApplication"/>
         </sectionGroup>
       </sectionGroup>
     </sectionGroup>
  </configSections>
  添加<controls>节的内容，放在<system.web>/<pages>标记中。    <pages>
       <controls>
         <addtagPrefix="asp"namespace="System.Web.UI"assembly="System.Web.Extensions,Version=1.0.61025.0,Culture=neutral,PublicKeyToken=31bf3856ad364e35"/>
       </controls>
     </pages>   
  在<compilation>标记内的<assemblies>标记中添加下面的内容：      <assemblies>
        <addassembly="System.Web.Extensions,Version=1.0.61025.0,Culture=neutral,PublicKeyToken=31bf3856ad364e35"/>
       </assemblies>
  在<httpHandlers>节中添加下面的内容： <httpHandlers>
       <addverb="*"path="*.asmx"validate="false"type="System.Web.Script.Services.ScriptHandlerFactory,System.Web.Extensions,Version=1.0.61025.0,Culture=neutral,PublicKeyToken=31bf3856ad364e35"/>
       <addverb="*"path="*_AppService.axd"validate="false"type="System.Web.Script.Services.ScriptHandlerFactory,System.Web.Extensions,Version=1.0.61025.0,Culture=neutral,PublicKeyToken=31bf3856ad364e35"/>
       <addverb="GET,HEAD"path="ScriptResource.axd"type="System.Web.Handlers.ScriptResourceHandler,System.Web.Extensions,Version=1.0.61025.0,Culture=neutral,PublicKeyToken=31bf3856ad364e35"validate="false"/>
   </httpHandlers>
  在HttpModules节中添加下面的注册内容，放在所有已有的注册内容下面  <httpModules>
       <addname="ScriptModule"type="System.Web.Handlers.ScriptModule,System.Web.Extensions,Version=1.0.61025.0,Culture=neutral,PublicKeyToken=31bf3856ad364e35"/>
   </httpModules>
  在<SharePoint>/<SafeControls>节中，添加一条SafeControl，用于MicrosoftAjaxExtensions的System.Web.UI命名空间。  <SafeControls>
       <SafeControlAssembly="System.Web.Extensions,Version=1.0.61025.0,Culture=neutral,PublicKeyToken=31bf3856ad364e35"Namespace="System.Web.UI"TypeName="*"Safe="True"/>
   </SafeControls>
  最后,添加下面的configuration标记到web.config文件末尾,在结束标记<configuration>前面。
   <system.web.extensions>
     <scripting>
       <webServices>
       <!--Uncommentthislinetoenabletheauthenticationservice.IncluderequireSSL="true"ifappropriate.-->
       <!--
         <authenticationServiceenabled="true"requireSSL="true|false"/>
       -->
       <!--Uncommenttheselinestoenabletheprofileservice.ToallowprofilepropertiestoberetrievedandmodifiedinASP.NETAJAXapplications,youneedtoaddeachpropertynametothereadAccessPropertiesandwriteAccessPropertiesattributes.-->
       <!--
       <profileServiceenabled="true"
                       readAccessProperties="propertyname1,propertyname2"
                       writeAccessProperties="propertyname1,propertyname2"/>
       -->
       </webServices>
       <!--
       <scriptResourceHandlerenableCompression="true"enableCaching="true"/>
       -->
     </scripting>
   </system.web.extensions>
   <system.webServer>
     <validationvalidateIntegratedModeConfiguration="false"/>
     <modules>
       <addname="ScriptModule"preCondition="integratedMode"type="System.Web.Handlers.ScriptModule,System.Web.Extensions,Version=1.0.61025.0,Culture=neutral,PublicKeyToken=31bf3856ad364e35"/>
     </modules>
     <handlers>
       <removename="WebServiceHandlerFactory-Integrated"/>
       <addname="ScriptHandlerFactory"verb="*"path="*.asmx"preCondition="integratedMode"
            type="System.Web.Script.Services.ScriptHandlerFactory,System.Web.Extensions,Version=1.0.61025.0,Culture=neutral,PublicKeyToken=31bf3856ad364e35"/>
       <addname="ScriptHandlerFactoryAppServices"verb="*"path="*_AppService.axd"preCondition="integratedMode"type="System.Web.Script.Services.ScriptHandlerFactory,System.Web.Extensions,Version=1.0.61025.0,Culture=neutral,PublicKeyToken=31bf3856ad364e35"/>
       <addname="ScriptResource"preCondition="integratedMode"verb="GET,HEAD"path="ScriptResource.axd"type="System.Web.Handlers.ScriptResourceHandler,System.Web.Extensions,Version=1.0.61025.0,Culture=neutral,PublicKeyToken=31bf3856ad364e35"/>
     </handlers>
   </system.webServer>
  利用AjaxBaseWebPart进行开发

  编写使用该扩展的WebPart最简单的办法就是直接继承别人写好的AjaxBaseWebPart。下面是我用的一个。您也可以用其他的，或自己写一个。
  下面是命名空间引用部分：
  　usingSystem;
  usingSystem.Collections.Generic;
  usingSystem.Text;
  usingSystem.Web;
  usingSystem.Web.UI.WebControls.WebParts;
  usingSystem.Xml.Serialization;
  usingSystem.Web.UI;
  usingMicrosoft.SharePoint.WebPartPages;
  usingMicrosoft.SharePoint.Utilities;
  usingSystem.Web.UI.WebControls;
  usingSystem.Drawing;
  下面是AjaxBaseWebPart类的实现部分：
  　    ///<summary>
     ///AbaseclassthatimplementsallthefunctionalityrequiredtouseASP.netAjaxextensionsinsideWSS
     ///</summary>
     [XmlRoot(Namespace="Deps.AjaxBaseWebpart")]
     publicabstractclassAjaxBaseWebpart:Microsoft.SharePoint.WebPartPages.WebPart
     {
         /*
          *TheideaandthecodebehindthisbasewebpartwastakenfromEricsblogpostat:
          *
          *ThisbasicallymanagesthepresenceandconfigurationoftheScriptManager
          *whichisrequiredbyASP.netajaxextensionstohandlepostbacks,ect.Thiswebpartalsoincludes
          *acommonmethodforhandlingerrors.
          */
         #regionDeclarations
         privatestring_ValidationGroupId;
         privateValidationSummary_ErrorContainer;
         privateScriptManager_AjaxManager;
         #endregion

         #regionConstructor
         publicAjaxBaseWebpart()
         {

         }
         #endregion

         #regionMethods
         ///<summary>
         ///Usedtoprovideacommonwaytodisplayerrorstotheuserofthecurrentwebpart.
         ///</summary>
         ///<paramname="message">Descriptionoftheerrorthatoccured.</param>
         publicvoidRegisterError(stringmessage)
         {
             if(this.Controls.Contains(_ErrorContainer))
             {
                 //thiswayofgeneratingauniquecontrolidisusedinsomeoftheOOBwebparts
                 intuniqueCounter;
                 if(HttpContext.Current.Items["GetUniqueControlId"]!=null)
                 {
                     uniqueCounter=(int)HttpContext.Current.Items["GetUniqueControlId"];
                 }
                 else
                 {
                     uniqueCounter=0;
                 }
                 uniqueCounter++;
                 HttpContext.Current.Items["GetUniqueControlId"]=uniqueCounter;

                 //createacustomvalidatortoregisterthecurrenterrormessagewiththeValidationSummarycontrol
                 CustomValidatorcv=newCustomValidator();
                 cv.ID=string.Concat("_Error_",uniqueCounter);
                 cv.ValidationGroup=_ValidationGroupId;
                 cv.Display=ValidatorDisplay.None;
                 cv.IsValid=false;
                 cv.ErrorMessage=message;

                 this.Controls.Add(cv);
             }
             else
             {
                 //ifRegisterErroriscalledbeforetheCreateChildControlsoverrideinAjaxBasePartthentransfertheusertoanerrorpageusingtheSPUtility
                 SPUtility.TransferToErrorPage("TheCreateChildControlsfunctionoftheAjaxBaseParthasnotbeencalled. Youprobablyneedtoadd\"base.CreateChildControls()\"tothetopofyourCreateChildControlsoverride.");
             }
         }
         ///<summary>
         ///NeedstobecalledtoensurethattheValidationSummarycontrolisregisteredonthepage. Anychildwebpartswillneedtohavebase.CreateChildControls()atthetopoftheirownCreateChildControlsoverride.
         ///</summary>
         protectedoverridevoidCreateChildControls()
         {
             base.CreateChildControls();

             if(!this.Controls.Contains(_ErrorContainer))
             {
                 _ValidationGroupId=Guid.NewGuid().ToString();

                 _ErrorContainer=newValidationSummary();
                 _ErrorContainer.ID="_ErrorContainer";
                 _ErrorContainer.ValidationGroup=_ValidationGroupId;
                 _ErrorContainer.BorderStyle=BorderStyle.Solid;
                 _ErrorContainer.BorderWidth=Unit.Pixel(3);
                 _ErrorContainer.BorderColor=Color.Red;

                 this.Controls.Add(_ErrorContainer);
             }
         }
         #endregion

         #regionEvents
         ///<summary>
         ///Oninitfiresbeforepageload.ModificationstothepagethatarenecessarytosupportAjaxaredonehere.
         ///</summary>
         protectedoverridevoidOnInit(EventArgse)
         {
             base.OnInit(e);

             //gettheexistingScriptManagerifitexistsonthepage
             _AjaxManager=ScriptManager.GetCurrent(this.Page);

             if(_AjaxManager==null)
             {
                 //createnewScriptManagerandEnablePartialRendering
                 _AjaxManager=newScriptManager();
                 _AjaxManager.EnablePartialRendering=true;

                 //Fixproblemwithpostbacksandformactions(DevDiv55525)
                 Page.ClientScript.RegisterStartupScript(typeof(AjaxBaseWebpart),this.ID,"_spOriginalFormAction=document.forms[0].action;",true);

                 //tag:"form"att:"onsubmit"val:"return_spFormOnSubmitWrapper()"blocksasyncpostbacksafterthefirstone
                 //notcalling"_spFormOnSubmitWrapper()"breaksallpostbacks

 //returningtrueallthetime,somewhatdefeatsthepurposeofthe_spFormOnSubmitWrapper()whichistoblockrepetitivepostbacks,butitallowsMSAJAXExtensionstoworkproperly
               //itsahackthathopefullyhasminimaleffect
               if(this.Page.Form!=null)
               {
                   stringformOnSubmitAtt=this.Page.Form.Attributes["onsubmit"];
                   if(!string.IsNullOrEmpty(formOnSubmitAtt)&&formOnSubmitAtt=="return_spFormOnSubmitWrapper();")
                   {
                       this.Page.Form.Attributes["onsubmit"]="_spFormOnSubmitWrapper();";
                   }

 

                   //addtheScriptManagerasthefirstcontrolinthePage.Form
                   //Idon'tthinkthisactuallymatters,butIdidittobeconsistentwithhowyouaresupposedtoplacetheScriptManagerwhenuseddeclaritevly
                   this.Page.Form.Controls.AddAt(0,_AjaxManager);
               }
           }
       }
       #endregion

       #regionProperties
       ///<summary>
       ///ExposesthePage'sscriptmanager.ThevalueisnotsetuntilafterOnInit
       ///</summary>
       [WebPartStorage(Storage.None)]
       publicScriptManagerAjaxManager
       {
           get{return_AjaxManager;}
           set{_AjaxManager=value;}
       }
       #endregion
   }
开发时只要继承这个WebPart就可以添加UpdatePanel，并在里面添加其他控件了。

转载于:https://www.cnblogs.com/dnmidi/archive/2007/10/21/932417.html

标签：Web,WebPart,ASP,usingSystem,NETAJAX,ErrorContainer,添加,AjaxManager,cv
来源： https://blog.csdn.net/weixin_30814329/article/details/95949424