WPF xml

[Rick]

I'm using WPF with net 3.5 to load the ItemsSource of a combo box from an
xml file.

The xml is setup like this:

<profiles>
<profile>
<profilename>Fi rst profile</profilename>
...
</profile>
... other profile nodes
</profiles>

In the Windows.Resourc es node of the xaml I have:

<XmlDataProvide r x:Key="xmldata" Source="c:/temp/xmlData.xml"
XPath="profiles/profile" />

and in the combobox I have:

<ComboBox Margin="5" Name="cbProfile s" Width="240" IsEditable="Tru e"
ToolTip="Select database profile"
VerticalContent Alignment="Cent er"
ItemsSource="{B inding Source={StaticR esource xmldata},
XPath=profilena me }" SelectedIndex=" 0" />

But this only retreives the first profile-profilename for the combobox list.
If I change the XPath of the combobox to //profilename, then I get them all.

What am I not understanding about how this works since I think the XPath of
the XmlDataProvider should be providing a list of <profiles/profilenodes
and then the XPath of the combobox should give me all the <profilename>
nodes.

Regards,

Rick

[Martin Honnen]

Re: WPF xml

Rick wrote:

I'm using WPF with net 3.5 to load the ItemsSource of a combo box from
an xml file.
>
The xml is setup like this:
>
<profiles>
<profile>
<profilename>Fi rst profile</profilename>
...
</profile>
... other profile nodes
</profiles>
>
In the Windows.Resourc es node of the xaml I have:
>
<XmlDataProvide r x:Key="xmldata" Source="c:/temp/xmlData.xml"
XPath="profiles/profile" />
>
and in the combobox I have:
>
<ComboBox Margin="5" Name="cbProfile s" Width="240" IsEditable="Tru e"
ToolTip="Select database profile"
VerticalContent Alignment="Cent er"
ItemsSource="{B inding Source={StaticR esource
xmldata}, XPath=profilena me }" SelectedIndex=" 0" />
>
But this only retreives the first profile-profilename for the combobox
list. If I change the XPath of the combobox to //profilename, then I get
them all.
>
What am I not understanding about how this works since I think the XPath
of the XmlDataProvider should be providing a list of <profiles/profile>
nodes and then the XPath of the combobox should give me all the
<profilenamenod es.

I think you want

<XmlDataProvide r x:Key="xmldata" Source="c:/temp/xmlData.xml"
XPath="profiles " />

and

<ComboBox Margin="5" Name="cbProfile s" Width="240" IsEditable="Tru e"
ToolTip="Select database profile"
VerticalContent Alignment="Cent er"
ItemsSource="{B inding Source={StaticR esource
xmldata}, XPath=profile/profilename }" SelectedIndex=" 0" />

As far as I understand it, the XPath on the XmlDataProvider selects a
single node as the context node, then a relative XPath on the
ItemsSource of the ComboBox selects a list of nodes relative to that
content node.


If you use an absolute XPath like //profilename then you are basically
ignoring the XPath set on the XmlDataProvider .


--

Martin Honnen --- MVP XML

http://JavaScript.FAQTs.com/