Need to find the parent node id

This is my sample input

<table id="1" style="width=100%">
    <tr>
        <td id="1">
            <table开发者_如何学Go id="2" style="width=50%">
                <tr>
                    <td id="2">
                    </td>
                </tr>
            </table>
        </td>
    </tr>
</table>

I am using xslt1.0. when ever the template match 'td' is matched, i need to find the corresponding table id value..For example, If the td with id=1 is matched,i want to take style attribute value from table(id=1) and if the td with id=2 is matched,i want to take style attribute value from table(id=2). I have written ancestor::table/@style in my template, but both td are referring the styles of table with id=1.

I have written ancestor::table/@style in my template

You were close. Because there can be more than one table in the ancestor axis, you need to get the first one like in ancestor::table[1]/@style. Of course, if you are absolute sure there is always a chain of table -> tr -> td (not optional tbody) then you could go with @Flack's answer.

Assuming you are in 'td' context, use this XPath:

../../@style

Test XSLT against your sample:

<xsl:stylesheet version="1.0"
    xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
    <xsl:template match="td">
        <xsl:value-of select="../../@style"/>
        <xsl:apply-templates/>
    </xsl:template>
</xsl:stylesheet>

Result:

width=100%width=50%

Try this XPath it works perfectly

<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:template match="td">
    <xsl:value-of select="ancestor::table[1]/@style"/>
    <xsl:apply-templates/>
</xsl:template>

Result:

width=100%width=50%