在xslt转换过程中自动关闭xml标签

Question

I have :

<input type="checkbox" name="idsProduct" value="{@id}" 
       id="form_checkbox_product_{@id}">
    <xsl:if test="$x=$y">
        <xsl:attribute name="checked" >checked</xsl:attribute>
    </xsl:if>
</input>

and I get :

  <input type="checkbox" name="idsProduct" value="26294"
         id="form_checkbox_product_26294" checked="checked"></input>

I want an input tag like :

<input type="checkbox" name="idsProduct" value="26294" 
       id="form_checkbox_product_26294" checked="checked" />

my xsl output is :

 <xsl:output 
      omit-xml-declaration="yes" 
      method="xml"
      encoding="utf-8"
      indent="no" />

How can I autoclose this tag?

Answer 1

This is similar to this question (although your problem is the direct inverse):

Using xsl:if doesn't include closing tag

There's discussion of a 'trick' here that causes the longer form of a closed element to be used, which you appear to be inadvertently using here, in a slightly different form. I suspect your problem is because you're asking the xslt to output directly to text. Outputting to an xml document first, and then serializing that should solve your problem.

Here's an extension method I used for transforming to an XmlDocument rather than a string, which you can then simply read the .OuterXml property of if you want the string equivalent; because XSLT isn't doing the outputting to text, it should treat the closed tags correctly.

    public static XmlDocument Transform(this XmlDocument input, XslCompiledTransform xslt)
    {
        XmlDocument outDoc = new XmlDocument(input.CreateNavigator().NameTable);
        using (XmlWriter xr = outDoc.CreateNavigator().AppendChild())
        {
            xslt.Transform(input, xr);
        }

        return outDoc;
    }

Answer 2

Try removing all whitespace from between the tags:

<input type="checkbox" name="idsProduct" value="{@id}" id="form_checkbox_product_{@id}"><xsl:if test="$x=$y"><xsl:attribute name="checked" >checked</xsl:attribute></xsl:if></input>

Does that work?