If a numeric value is NaN not a number; if I try to use the string "blue" as a number, the result is NaNit is false. The literal 3 evaluates to trueso its negation is false. On the other hand, the expressions not 0 and not -0 are always true. For less-than and greater-than comparisons, false is considered less than true the function call number false returns 0while number true returns 1. The first two are much like the if and case statements you may be familiar with from other languages, while the for-each element is significantly different from the for or do-while structures in other languages. An empty node-set is falsea non-empty node-set is true.
As Filburt says; but also note that it's usually better to write test="not(Count = 'N/A' )". If there's exactly one Count element they mean the same. xsl:if test="not(any-xml-node)"> equal to!= not equal to.
XSLT operator less_than
<, Less than. > - or- >, Greater than. <= Less than or equal not, The condition is not true. Equal, price=!= Not equal, price!= Greater than, price> >= Greater than or equal.
If one or both of the objects is a node-set Then things really get complicated.
XPath Axes B. The one exception is that procedural languages tend to use fallthrough processing.
Of course, if x is a boolean value, true is true and false is false. This example is a trick.
The union operator. We explain the various possibilities here: If both objects are boolean values Then they are equal if they have the same value.
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|This is a boolean expression because it uses the greater-than-or-equal boolean operator.
Start Free Trial No credit card required. If both objects are node-sets, a comparison is true when the string value of at least one node in the first node-set is equal to the string value of at least one node in the second node-set. All rights reserved.
The variable x is evaluated.
xsl:if test="CategoryName">. xsl:if>. xsl:if test="not(CategoryName)" >.
XPath Operators (XSLT)
Learn about the XSLT if element with this free XML tutorial. xsl:if> Example. The Source File. If the attribute value equals vegetable we output the details.
An empty node-set is falsea non-empty node-set is true.
The one exception is that procedural languages tend to use fallthrough processing. We explain the various possibilities here:. If a number has any other value, it is true. Otherwise, the test attribute is false. If no such elements exist in the current context, the test attribute is false.
Remember that the boolean negation of zero is true.
Tests whether the two expressions are not equal. and: Tests whether both the first and second expressions are true.
If the first expression is false, the second is.
Let me mention again that this is not the same as a traditional for loop. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.
Notice that in this case we used single quotes inside double quotes to specify that this is a literal string, not an element name. Therefore, this test attribute is always true. The boolean function true always returns the boolean value true. If the count function returns a value greater than or equal to 2, the test attribute is true.
Branching Elements of XSLT (XSLT)
Xsl if not equal
|We'll go through some examples to illustrate this. If a numeric value is NaN not a number; if I try to use the string "blue" as a number, the result is NaNit is false.
Video: Xsl if not equal If with Not and OR in Excel
Each time a select attribute is processed, it is evaluated in terms of the current node. On the other hand, the expressions not 0 and not -0 are always true. The boolean function true always returns the boolean value true.