Question

If- else condition in XSL

Asked by: tia_kamakshi

Hi,

I am new to XSL. I wish to transform XML file using XSL file

I have customer xml which I am transforming from customer xsl file

In XSL I am trying to print values from if-else condition


Like if value exists in XML file print that else print value in else part



for example

If Title is present in XML file and value of title in XML file is blank print 'Mr./Mrs' or else print what ever value is in XML file

 <xsl:template  match="/Customer">
                        
        <xsl:value-of  select="if (Title) then Title else 'Mr./Mrs'"/>
                        
</xsl:template>


Another example

If Firstname is present in XML file and value of Firstname in XML file is blank print '' or else print what ever value is in XML file that is 'XX'

<xsl:template  match="/Customer">
                        
              <xsl:value-of  select="if (Firstname) then Firstname else ''"/>
                        
</xsl:template>


Please help me in correcting my XSL

Below is my example XML and XSL

Please guide

Many Thanks

************************XML********************
 
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="Customer.xsl"?>
 
<Customer>
	
	<Title></Title>
	<Firstname>XX</Firstname>
	<Lastname>YY</Lastname>	
</Customer>
 
************************XSL********************
 
<?xml version="1.0"?>
 
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
 
<xsl:template match="/Customer">
  
  <html>
  <head>
  </head>
  
  <body>
  Title is: 
        <xsl:template  match="/Customer"> 
	                  
	  	<xsl:value-of  select="if (Title) then Title else 'Mr./Mrs'"/> 
	                  
            </xsl:template> 
            
<br />
 
First name: 
 
<xsl:template  match="/Customer"> 
	                  
	  	<xsl:value-of  select="if (Firstname) then Firstname else ''"/> 
	                  
            </xsl:template> 
 
  </body>
</html>
</xsl:template>
 
</xsl:stylesheet>

                                  
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Asked On
2009-06-22 at 02:55:05ID24510623
Topics

XSL Formatting Objects

,

Extensible Stylesheet Language Transformation (XSLT)

Participating Experts
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Points
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Comments
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Answers

 

by: GertonePosted on 2009-06-22 at 02:59:47ID: 24680896

<?xml version="1.0"?>
 
<xsl:stylesheet version="1.0"
    xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
    
    <xsl:template match="/Customer">
        
        <html>
            <head>
            </head>
            
            <body>
                Title is: 
                <xsl:choose>
                    <xsl:when test="Title">
                        <xsl:value-of select="Title"/>
                    </xsl:when>
                    <xsl:otherwise>
                        <xsl:text>Mr./Mrs</xsl:text>
                    </xsl:otherwise>
                </xsl:choose>
                 <br />
                
                First name: 
                
                <xsl:value-of select="Firstname"/>
                
                
            </body>
        </html>
    </xsl:template>
    
</xsl:stylesheet>
                                              
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by: GertonePosted on 2009-06-22 at 03:02:43ID: 24680910

Note,
For the title I have use a choose construct
with a choose construct you ca have as many when clauses as you want

For the firstname I could have use an if clause (similar like a choose, but without alternatives,
since you are giving an empty string as an alternative
                <xsl:if test="Firstname">
                    <xsl:value-of select="Firstname"/>
                </xsl:if>
but if Firstname is not present, nothing will show up, so you don't need the if clause
and a simple
                     <xsl:value-of select="Firstname"/>
is sufficient

Note also that you can't have templates nested in eachother

 

by: tia_kamakshiPosted on 2009-06-22 at 03:03:24ID: 24680913

Many Thanks for your XSL code

But it is not printing Mr./Mrs for the title if Title is blank. It is printing blank value

Please help me in fixing the code

Thanks again for quick response

 

by: GertonePosted on 2009-06-22 at 03:05:32ID: 24680921

A, but the test is checking if the Title element is present,
you now want to test for the Title having content
change the choose like this

                <xsl:choose>
                    <xsl:when test="string-length(normalize-space(Title)) &gt; 0">
                        <xsl:value-of select="Title"/>
                    </xsl:when>
                    <xsl:otherwise>
                        <xsl:text>Mr./Mrs</xsl:text>
                    </xsl:otherwise>
                </xsl:choose>
                                              
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by: tia_kamakshiPosted on 2009-06-22 at 03:08:45ID: 31594984

Works great Many Many Thanks for your help and quick reply.

 

by: GertonePosted on 2009-06-22 at 06:48:17ID: 24682376

welcome

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