Reading addIn XML using Xml.Linq

Question

I have seen many instances of this question in this forum, with answers! So why am I still asking? Because I have tried for hours to read specific parts of the XML below using XDocument and yet no succees, here is the whole addIn XML as exported from a page:

<webParts>
  <webPart xmlns="http://schemas.microsoft.com/WebPart/v3">
    <metaData>
      <type name="Microsoft.SharePoint.WebPartPages.ClientWebPart, Microsoft.SharePoint, Version=16.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" />
      <importErrorMessage>Cannot import this Web Part.</importErrorMessage>
    </metaData>
    <data>
      <properties>
        <property name="TitleIconImageUrl" type="string" />
        <property name="Direction" type="direction">NotSet</property>
        <property name="ExportMode" type="exportmode">All</property>
        <property name="HelpUrl" type="string" />
        <property name="Hidden" type="bool">False</property>
        <property name="Description" type="string">Description</property>
        <property name="FeatureId" type="System.Guid, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">624a6c65-81ec-4670-8204-f1e2162e98c0</property>
        <property name="CatalogIconImageUrl" type="string" />
        <property name="Title" type="string">Title</property>
        <property name="AllowHide" type="bool">True</property>
        <property name="ProductWebId" type="System.Guid, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">936f3da1-4a4f-46af-b0f8-fbbcb1556430</property>
        <property name="AllowZoneChange" type="bool">True</property>
        <property name="TitleUrl" type="string" />
        <property name="ChromeType" type="chrometype">TitleOnly</property>
        <property name="AllowConnect" type="bool">True</property>
        <property name="Width" type="unit">350px</property>
        <property name="Height" type="unit" />
        <property name="WebPartName" type="string">WebPart</property>
        <property name="HelpMode" type="helpmode">Navigate</property>
        <property name="AllowEdit" type="bool">True</property>
        <property name="AllowMinimize" type="bool">True</property>
        <property name="ProductId" type="System.Guid, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">624a6c65-81ec-4670-8204-f1e2162e98bf</property>
        <property name="AllowClose" type="bool">True</property>
        <property name="ChromeState" type="chromestate">Normal</property>
      </properties>
    </data>
  </webPart>
</webParts>

I can load the XML using:

XDocument addinTemplate = XDocument.Load("AddInTemplate.xml");

with no problems, but when I try to reach any other part of the XML like the , it just doesn't work. Shouldn't it be as simple as var properties = addinTemplate.Descendants("properties"); ? What am I missing? I have also tried to create my own simple XML structure and had no problems getting any specific element/attribute from it, what is different with addIn XML? My goal is to reach the properties element to loop through its property children.

Update

Using:

var properties = addinTemplate.Descendants("properties").Select(p => new
            {
                name = p.Attribute("name"),
                type = p.Attribute("type")
            }).ToList();

Or:

var properties = addinTemplate.Descendants("properties");

does not yield any results, without getting an error message.

does your XML file contains <?xml version="1.0" encoding="utf-8" ?> in the top? — Atish Kumar Dipongkor
– Atish Kumar Dipongkor, Commented Nov 27, 2015 at 10:59
Yes it does, but it does not seem to help, when I tried with another simple XML structure, it worked without having <?xml version="1.0" encoding="utf-8" ?> — Eliya Amanoeel
– Eliya Amanoeel, Commented Nov 27, 2015 at 11:03

Atish Kumar Dipongkor · Accepted Answer · 2015-11-27 11:42:22Z

1

var properties = addinTemplate.Descendants("properties")
                       .Select(p => new { 
                                         name = p.Attribute("name"), 
                                         type = p.Attribute("type")}
                       ).ToList();

Instead of above, try following and let me know.

var properties = addinTemplate
                     .Descendants()
                     .Where(e => e.Name.LocalName == "properties")
                     .ToList();

Update #1

Following will give all Descendants under properties

var properties = addinTemplate.Descendants()
            .Where(e => e.Name.LocalName == "properties")
            .Descendants()
            .Select(p => new { name = p.Attribute("name"), type = p.Attribute("type") })
            .ToList();

I have tested it.

edited Nov 27, 2015 at 11:42

answered Nov 27, 2015 at 11:32

Atish Kumar Dipongkor

13.4k5 gold badges34 silver badges65 bronze badges

1

Works perfectly! I began to remove parts of the XML to see what it is that stopped it from working, it was really the <webPart xmlns="schemas.microsoft.com/WebPart/v3"></webPart> element, when i removed this element, everything works fine, and it's only this element that has xmlns definition, anything to consider about that?

Eliya Amanoeel
– Eliya Amanoeel

2015-11-27 11:36:33 +00:00
Commented Nov 27, 2015 at 11:36
Sure, I'm not running away :)

Eliya Amanoeel
– Eliya Amanoeel

2015-11-27 11:39:14 +00:00
Commented Nov 27, 2015 at 11:39
If you are not run away already, then find my another update. :)

Atish Kumar Dipongkor
– Atish Kumar Dipongkor

2015-11-27 11:42:58 +00:00
Commented Nov 27, 2015 at 11:42

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