本文介绍了一种使用XSL模板从SharePoint项目的URL中提取文件扩展名的方法。通过递归处理路径参数，该模板能准确地识别并返回文件扩展名，便于进一步的条件格式化或逻辑分支。
When working with data view web parts or data form web parts in SharePoint, you might want to use some conditional formatting or branching logic, based on the file extention of your SharePoint item.
This xsl template returns the file extention from an URL:
<!-- Determine File Extention template --> <xsl:template name="get-file-extension"> <xsl:param name="path"/> <xsl:choose> <xsl:when test="contains($path, '/')"> <xsl:call-template name="get-file-extension"> <xsl:with-param name="path" select="substring-after($path, '/')"/> </xsl:call-template> </xsl:when> <xsl:when test="contains($path, '.')"> <xsl:call-template name="get-file-extension"> <xsl:with-param name="path" select="substring-after($path, '.')"/> </xsl:call-template> </xsl:when> <xsl:otherwise> <xsl:value-of select="$path"/> </xsl:otherwise> </xsl:choose> </xsl:template> |
It runs recursively through the parameter "path" and returns the extention.
You can call and use it like this:
<xsl:variable name="extension"> <xsl:call-template name="get-file-extension"> <xsl:with-param name="path" select="@yourcolumnname" /> </xsl:call-template> </xsl:variable> <!-- example use in branching logic --> <xsl:choose> <xsl:when test="$extension = 'pdf'"> <!-- add your logic --> </xsl:when> </xsl:choose> |
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