CODEWITHSUNDEEP
xsltxslt-1.0xslt-2.0
Mithil
Mithil

Reputation: 3770

How can I calculate the absolute value of a number in XSLT?

I have

<xsl:value-of select="DifferenceInDays" />

DifferenceInDays has a value that can be a negative or a positive number, I want to display its absolute value. How can I do this?

Upvotes: 16

Views: 28472

Answers (4)

Dimitre Novatchev
Dimitre Novatchev

Reputation: 243529

In XPath 1.0 use the following expression:

   $vNum*($vNum >=0) - $vNum*($vNum < 0)

In case this expression is embedded in an XSLT (XML) attribute, the < character must be escaped:

   $vNum*($vNum >=0) - $vNum*($vNum &lt; 0)

In XPath 2.0 (XSLT 2.0) use the abs() function.

Upvotes: 36

Jon Mifsud
Jon Mifsud

Reputation: 183

Some of the answers are complicating life way too much for XSLT 1.0 it's actually much simpler. Using the number formatting you can define a structure for Positive and Negative numbers, the default negative is -0 however you can define your own.

<xsl:value-of select='format-number(DifferenceInDays,"0;0")'/>

The above code will show the absolute value of Difference in Days just by using the provided formatting function.

Upvotes: 6

k b
k b

Reputation:

diffInDays * (1 - 2*(diffInDays &lt; 0))

Upvotes: 1

Jory
Jory

Reputation: 155

This can be achieved using the xpath abs function.

<xsl:value-of select="abs(DifferenceInDays)"/>

Upvotes: 6

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