Find Remaining Number of Days using XSL in SharePoint
Scenario:
I have a List for keeping track of my Outsourced resources with fields: Resource Name, Skills, Contract Start Date, End Date, etc. What I want is: Display the No.of remaining days in a page. So Added a calculated field , applied the formula : =IF(Today>=[End Date],0,INT([To Date]-Today)), So simple, isn’t it?
hmm, The problem here is: since its a calculated field, it wont get update until you update the record! All I wanted is just to display the remaining days.
Tried the formula:
Nope! didn’t work, gave me wrong values in some cases.
After Googling some time, found in Technet forums something works: Custom XSL Template!
Insert this code in Dataview XSL
<xsl:template name="DateDiff">
<xsl:param name="StartDate"></xsl:param>
<xsl:param name="TodayDate"></xsl:param>
<xsl:variable name="JulianToday">
<xsl:call-template name="calculate-julian-day">
<xsl:with-param name="Year" select="substring(ddwrt:FormatDateTime(string($TodayDate), 1033, 'yyyyMMdd'),0,5)"/>
<xsl:with-param name="Month" select="substring(ddwrt:FormatDateTime(string($TodayDate), 1033, 'yyyyMMdd'),5,2)"/>
<xsl:with-param name="Day" select="substring(ddwrt:FormatDateTime(string($TodayDate), 1033, 'yyyyMMdd'),7,2)"/>
</xsl:call-template>
</xsl:variable>
<xsl:variable name="JulianStartDate">
<xsl:call-template name="calculate-julian-day">
<xsl:with-param name="Year" select="substring(ddwrt:FormatDateTime(string($StartDate), 1033, 'yyyyMMdd'),0,5)"/>
<xsl:with-param name="Month" select="substring(ddwrt:FormatDateTime(string($StartDate), 1033, 'yyyyMMdd'),5,2)"/>
<xsl:with-param name="Day" select="substring(ddwrt:FormatDateTime(string($StartDate), 1033, 'yyyyMMdd'),7,2)"/>
</xsl:call-template>
</xsl:variable>
<xsl:value-of select="$JulianStartDate - $JulianToday"></xsl:value-of>
</xsl:template>
<xsl:template name="calculate-julian-day">
<xsl:param name="Year"/>
<xsl:param name="Month"/>
<xsl:param name="Day"/>
<xsl:variable name="JulianDay" select="floor((14 - $Month) div 12)"/>
<xsl:variable name="JulianYear" select="$Year + 4800 - $JulianDay"/>
<xsl:variable name="JulianMonth" select="$Month + 12 * $JulianDay - 3"/>
<xsl:value-of select="$Day + floor((153 * $JulianMonth + 2) div 5) +
$JulianYear * 365 + floor($JulianYear div 4) - floor($JulianYear div
100) + floor($JulianYear div 400) - 32045"/>
</xsl:template>
Call the Template with appropriate parameters:
<!-- get the delta in days between the due date and today -->
<xsl:variable name="dueDateDelta">
<xsl:call-template name="DateDiff">
<xsl:with-param name="StartDate" select="substring-before(@To_x0020_Date,'T')"/>
<xsl:with-param name="TodayDate" select="substring-before(ddwrt:TodayIso(),'T')"/>
</xsl:call-template>
</xsl:variable>
<xsl:choose>
<xsl:when test="$dueDateDelta > 0">
<xsl:value-of select="$dueDateDelta" />
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="0" />
</xsl:otherwise>
</xsl:choose>
Found another trick using JavaScript: https://sympmarc.com/2009/07/22/date-arithmetic-in-sharepoint-dvwps/
In case you have any function to add days to a date pls, let me know, thx!