Display selected value in XSL combo

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March 4th, 2004, 12:03 AM

peasfood

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Display selected value in XSL combo

Hi there,

Here is a XSL combo that I use in my app.

<select name="Year" value='{//Time/@Year}'>
<option >1900</option>
<option >1901</option>
<option >1902</option>
<option >1903</option>
<option >1904</option>
<option >1905</option>
</select>

How can I capture the value selected in this combo ?
Help please ?

thanks in advance.

March 4th, 2004, 11:41 AM

MattSidesinger

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Where do you want to capture the value from the combo?
On the server side or the client side?
What client scripting technology or server side language would be using?

March 4th, 2004, 11:23 PM

peasfood

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This is to capture it in XSL itself.
Actually "//Time/Year" attribute captures the value.

Here too, its the same, but I want the selected value to be highlighted when I visit the page time.

What happens currently is that the page is reset & the combo always shows 1900(even as (//Time/Year holds 1905 as the value inside the DB).

Basically, I want to know some XSL attribute like <xsl:valueof select ... > which will highlight the selected value when I visit the web page again.

Hope am clear.

thanks.

March 5th, 2004, 07:53 AM

MattSidesinger

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If the 19xx values are going to be hardcoded in the XSL:

Code:

<xsl:variable name="dropdownHtml">
	<select name="Year">
		<option>1900</option>
		<option>1901</option>
		<option>1902</option>
		<option>1903</option>
		<option>1904</option>
		<option>1905</option>
	</select>
</xsl:variable>

<xsl:variable name="searchFor">
	<xsl:text>></xsl:text><xsl:value-of select="//Time/@Year"/>
</xsl:variable>

<xsl:value-of disable-output-escaping="yes" select="substring-before($dropdownHtml, $searchFor)"/>
<xsl:text> selected="selected"></xsl:text><xsl:value-of select="//Time/@Year"/>
<xsl:value-of disable-output-escaping="yes" select="substring-after($dropdownHtml, $searchFor)"/>

If the 19xx values come from the XML:

Code:

<select name="Year">
<xsl:for-each select="/child::node()/years/year">
	<xsl:choose>
		<xsl:when test=". = //Time/@Year">
			<option selected="selected"><xsl:value-of select="."/></option>
		</xsl:when>
		<xsl:otherwise>
			<option><xsl:value-of select="."/></option>
		</xsl:otherwise>
	</xsl:choose>
</xsl:for-each>
</select>

OR if the values come from a document called years.xml in the same dir as the XSL (the best solution):

Code:

<select name="Year">
<xsl:for-each select="document(years.xml)/years/year">
	<xsl:choose>
		<xsl:when test=". = //Time/@Year">
			<option selected="selected"><xsl:value-of select="."/></option>
		</xsl:when>
		<xsl:otherwise>
			<option><xsl:value-of select="."/></option>
		</xsl:otherwise>
	</xsl:choose>
</xsl:for-each>
</select>

On a side note, for performance sake, it is not always wise to use // in your XPath unless you absolutely need it. // means descendent or self which is slower then saying something like /rootElementName/Time/@Year or /child:node()/Time/@Year. You might want to read up on your XPath.

I would also be wide to put this functionality into a template and put the template in an imported XSL file.

Matt

March 7th, 2004, 11:31 PM

peasfood

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thanks Matt for the detailed reply.
My values are indeed hardcoded in the XSL.

There are two modes of accessing this web page.

CREATE: In this mode,the combo will be always showing 1900. I have no problem with this.

EDIT: This is where I have a problem. The combo still shows 1900 , even as \\Project\FeeType contains 1905 or some other selected value.

I want the combo to highlight the selected value with the rest of the values also as part of the combo.

I tied the foll , but didnt succeed.

*** Code ***
<select name="Year">

<xsl:choose>
<xsl:when Year ="@Year='1900' or @Year='1901' or @Year='1902' " >

<xsl:if test="@Year='1900'">
<option value="1900" selected="selected">1900</option>
<option value="1901">1901</option>
Rest of the ...values
</xsl:if>

<xsl:if test="@Year='1901'">
<option value="1900" >1900</option>
<option value="1901" selected="selected">1901</option>
Rest of the ...values
</xsl:if>

Similarly , this continues till 1905.

</xsl:when>

The Otherwise clause is for CREATE mode.
<xsl

therwise>

<option >1900</option>
<option >1901</option>
<option >1902</option>
<option >1903</option>
<option >1904</option>
<option >1905</option>

</xsl

therwise>
</xsl:choose>

Thanks again for all your patience.

March 8th, 2004, 07:11 AM

MattSidesinger

Java PHP Oracle Developer

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Location: C-Bus OH-IO

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Use the code I gave and an editor like ActiveState's Komodo so that you can set breakpoints and change the code as needed. Don't use the *** Code *** part of your last reply. Use one of the three solutions I gave you or you programmer friends will laugh at you at this years summer BBQ. Trust me.

http://www.activestate.com

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