SharePoint 2010 视图 xsl 文件中支持嵌入服务器控件,嵌入服务器控件时,系统先采用xsl将视图xml解析成一个相似UserControl的存在,而后执行UserControl。html
代码示例以下:api
<xsl:stylesheet xmlns:x="http://www.w3.org/2001/XMLSchema" xmlns:d="http://schemas.microsoft.com/sharepoint/dsp" version="1.0" exclude-result-prefixes="xsl msxsl ddwrt" xmlns:ddwrt="http://schemas.microsoft.com/WebParts/v2/DataView/runtime" xmlns:asp="http://schemas.microsoft.com/ASPNET/20" xmlns:__designer="http://schemas.microsoft.com/WebParts/v2/DataView/designer" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:msxsl="urn:schemas-microsoft-com:xslt" xmlns:SharePoint="Microsoft.SharePoint.WebControls" xmlns:codeart="CodeArt.SharePoint.SmartQuery" xmlns:ddwrt2="urn:frontpage:internal"> <xsl:output method="html" indent="no" encoding="uft-8" /> <xsl:include href="/_layouts/xsl/main.xsl" /> <xsl:include href="/_layouts/xsl/internal.xsl" /> <xsl:decimal-format NaN="" /> <xsl:template match="/" xmlns:aa="System.Web.UI"> <xsl:value-of disable-output-escaping="yes" select="'<%@ Register Tagprefix="codeart" Namespace="CodeArt.SharePoint.SmartQuery" Assembly="CodeArt.SharePoint.SmartQuery, Version=1.0.0.0, Culture=neutral, PublicKeyToken=df96d56002e5fe16" %>'"/> <hr /> <codeart:XXXWebPart runat="server"/> <hr /> <xsl:apply-templates mode="RootTemplate" select="$XmlDefinition" /> <hr/> </xsl:template> <xsl:template name="FieldRef_header.ZhuanYe" match="FieldRef[@Name='ZhuanYe']" mode="header"> <th nowrap="" scope="col" onmouseover="OnChildColumn(this)" class="ms-vh2"> <div class="ms-vh-div"> <xsl:copy-of select="current()" /> 专业 <xsl:value-of select="@DisplayName"/> </div> </th> </xsl:template> </xsl:stylesheet>
须要注意的是:服务器
并非全部服务器控件都是能够嵌入xsl的,控件必须继承于WebControl,而不能只继承Control。缘由: app
XsltListViewWebPart解析xsl时,嵌入的控件解析成UserControl后,会增长额外的属性,如:this
<hr xmlns:aa="System.Web.UI" xmlns:ddwrt2="urn:frontpage:internal" xmlns:SharePoint="Microsoft.SharePoint.WebControls" xmlns:__designer="http://schemas.microsoft.com/WebParts/v2/DataView/designer" xmlns:asp="http://schemas.microsoft.com/ASPNET/20" xmlns:d="http://schemas.microsoft.com/sharepoint/dsp" xmlns:x="http://www.w3.org/2001/XMLSchema"、>
<asp:UpdatePanel runat="server" xmlns:asp="http://schemas.microsoft.com/ASPNET/20"><ContentTemplate><asp:Calendar runat="server" xmlns:aa="System.Web.UI" xmlns:ddwrt2="urn:frontpage:internal" xmlns:SharePoint="Microsoft.SharePoint.WebControls" xmlns:__designer="http://schemas.microsoft.com/WebParts/v2/DataView/designer" xmlns:d="http://schemas.microsoft.com/sharepoint/dsp" xmlns:x="http://www.w3.org/2001/XMLSchema" /></ContentTemplate></asp:UpdatePanel>
这些强制加入的名称控件属性显然不是标准的控件属性,而Control没有实现IAttributeAccessor, 不能任意增长自定义属性,因此会出错,WebControl实现了IAttributeAccessor接口,能够增长任意属性,全部不会出错,以上示例代码中嵌入了UpdatePanel,UpdatePanel直接继承Control,因此会出差。错误信息通常为:spa
分析器错误 说明: 在分析向此请求提供服务所需资源时出错。请检查下列特定分析错误详细信息并适当地修改源文件。 分析器错误消息: 类型“xxx”不具备名为“xmlns:asp”的公共属性。