Skip to main content

SharePoint: Comparing dates in XSLT

In one of my sharePoint projects, I had to compare a date with the current date in XSLT. As it turned out, there is no support for date comparision in XSLT.
This is how I went about doing it.

The trick involves converting the date string into a number
Say the date is in ISO format YYYY-MM-DDTHH:MM:SSZ (for example, 2001-01-21T22:54:47Z).

Say we have a variable DueDate
<xsl:variable name="DueDate" select="'2001-01-21T22:54:47Z'">

Replace the dashes in the string with empty string
Take the first 10 character in the date sring
convert the string to number
number(translate(substring(@DueDate,1,10),'-',''))

On doing the above we get: 20010121


We can do the same thing with the date to compare. We can compare the duedate with the current date in SharePoint as follows
number(translate(substring(@DueDate,1,10),'-','')) & lt;number(translate(substring(ddwrt:TodayIso(),1,10),'-',''))

You can apply the same logic to compare dates in different formats.

Comments

Tahir Naveed said…
Thank you so much for posting this. I spend half of my day figuring out how to compare the dates in XSL...Now I am back in the business.
1:52 PM
Tahir Naveed said…
I have posted a complete solution on my blog: http://techturnip.blogspot.com/2009/05/comparing-dates-in-xsl.html
11:57 AM
Post a Comment

Popular posts from this blog

Clear Validation Errors and Validation Summary messages

ASP.net built in validation does not provide us a straight forward to clear all the validation errors. This would be really helpful while resetting a form. The reset html button would simply reset the form values but will not clear the validation errors. The following javascript code snippet can be used to clear the validation error messages. Have a reset button on your form and call the following js function onclick. <input type="reset" onclick="HideValidationErrors();" /> function HideValidationErrors() { //Hide all validation errors if (window.Page_Validators) for (var vI = 0; vI < Page_Validators.length; vI++) { var vValidator = Page_Validators[vI]; vValidator.isvalid = true; ValidatorUpdateDisplay(vValidator); } //Hide all validaiton summaries if (typeof (Page_ValidationSummaries) != "undefined") { //hide the validation summaries
2 comments
Read more

Find the cause of poor performance in Sql Server

I found the following two part article by Gail Shaw on Simple-Talk really helpful in trouble shooting poorly performing queries in Sql Server. The articles talks about spotting poorly performing queries with the help of the Profiler, understand Sql Server Query plans and fine tune the peformance using proper indexes. Part 1: http://tinyurl.com/ccl6gj Part 2: http://tinyurl.com/okcuqg
18 comments
Read more