xmlPackages calling app_code functions

[K&N]

Hi,

I know we have probably been over this before, but I am having a similar problem to unspokenchaos in January. I am using vb, but I getting the same error...

XmlPackage Exception: Exception=Last Trace Point=[]. Cannot find the script or external object that implements prefix 'urn:myFunctions'.

Firstly I assume this should work with vb? (I am not a web programmer by trade).

Secondly, it is probably something really dumb, I have been banging my head against a brick wall for a few hours and a second pair of eyes always helps so...

Thirdly, I am on 7.1.0.0, I assume this will not be a problem?

The end game is to get magiczoom working so I am planning to override LookUpProductImage, however at the moment I just want to the basics going...

So new namespace file:

Imports System
Imports System.Collections
Imports System.Collections.Generic
Imports System.Xml
Imports System.Xml.XPath
Imports System.Xml.Xsl
Imports System.IO
Imports System.Resources
Imports System.Globalization
Imports System.Reflection
Imports System.Data
Imports System.Configuration
Imports System.Drawing
Imports System.Web
Imports System.Web.Security
Imports System.Web.UI
Imports System.Web.UI.WebControls
Imports System.Web.UI.WebControls.WebParts
Imports System.Web.UI.HtmlControls
Imports System.Threading
Imports System.Text
Imports System.Text.RegularExpressions
Imports AspDotNetStorefrontCommon

'<summary>
'Summary description for MyCode
'</summary>

Namespace mynamespace

Public Class Slug

Public Function getmylistbox() As String
Return "<select id='Select1'> <option>hello</option></select> "
End Function


End Class


End Namespace


My webconfig update:

<add name="myCustomFunctions" type="mynamespace.slug" namespace="urn:myFunctions" />

My xml package:

<?xml version="1.0" encoding="UTF-8" ?>
<!-- ################################################## ################################################## ## -->
<!-- Copyright AspDotNetStorefront.com, 1995-2006. All Rights Reserved. -->
<!-- http://www.aspdotnetstorefront.com -->
<!-- For details on this license please visit the product homepage at the URL above. -->
<!-- THE ABOVE NOTICE MUST REMAIN INTACT. -->
<!-- $Header: /v6.1/Web/XmlPackages/test.xml.config 1 12/30/05 2:33p Administrator $ -->
<!-- ################################################## ################################################## ## -->
<package version="2.1" displayname="Variants In Right Bar" allowengine="true" debug="true" includeentityhelper="true">
<PackageTransform>
<xsl:stylesheet version="1.0" xmlns:mynamespace="urn:mynamespace" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:myFunctions="urn:myFunctions" xmlns:aspdnsf="urn:aspdnsf" exclude-result-prefixes="aspdnsf">
<xslutput method="html" omit-xml-declaration="yes" />
<xsl:template match="*">
I AM HEAR!!!!

<xsl:value-of select="myFunctions:getmylistbox()" disable-output-escaping="yes" />

aspdnsf:GetMLValue(Name)
</xsl:template>
</xsl:stylesheet>
</PackageTransform>
</package>

and then dropped into engine.aspx:

<aspdnsf:XmlPackage id="Package1" PackageName="test.xml.config" runat="server" EnforceDisclaimer="true" EnforcePassword="true" EnforceSubscription="true" AllowSEPropogation="true" ReplaceTokens="true"/>


I have basically copied the original guy in this post apart from the conversion to vb...

Any advice would be great.

[yakatz]

XmlPackage Exception: Exception=Last Trace Point=[]. Cannot find the script or external object that implements prefix 'urn:myFunctions'.

As I think I have mentioned before in these forums, this seems to be only a problem with the vb version.
See http://forums.aspdotnetstorefront.co...6&postcount=49

[pizzle1983]

Hi,

After reading the start of this thread I've been able to call app_code functions within an xml package that will generate html, ideally though I would like to load a custom usercontrol from the xml package to do the html generation rather than a function within app_code.

Is there a way to load user controls within an xml package?

Thanks in advance.

[AspDotNetStorefront Staff - Scott]

Is there a way to load user controls within an xml package?

Unfortunately, there is not.

[jr365]

Sorry to resurrect this thread, but I would like to suggest that in .net 4 builds, the application uses mef instead of the manual web.config work.

This would allows developers to drop any dll into the bin folder, and then call it from the xslt.

No config

[jr365]

If anyone is looking for a full documentation, I wrote down on my blog what worked for me: (link)

I was able to get an external dll working. No need to muck around in the app_code folder.

[cengen]

Hope this helps someone else.

It still works as of MS 9.2.0.0 ...

I had a problem, but it turned out to be this (I don't know much about xsl):

In my xmlpackage file, I had one node was embedded within another ( </add> is out of place - needed another </add> after <add name>)

http://forums.aspdotnetstorefront.co...742#post112742

But I followed Jeremiah Redekop's example:
http://blogs.geniuscode.net/JeremiahRedekop/?p=401

At one point I put in a support ticket, but the response was a) incorrect, and b) not helpful.

Follow your dreams and believe in yourself, no one else will ....