Databases
StackOverflow2013
Postsdbo
POWCF returns ArrayOfKeyValueOfintstringKeyValueOfintstring[] instead of Dictionary<int, string> and Array instread of List
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POWCF returns ArrayOfKeyValueOfintstringKeyValueOfintstring[] instead of Dictionary<int, string> and Array instread of List
    primarykey
    data
    text
    <p>So I've spent the last several hours investigating this issue and it is clear that I am not the only one. Why are my Dictionaries and Lists being returned as Arrays? </p> <p>I understand that Arrays are used as default for the sake of compatibility. WCF makes a conscious effort to distance itself from being .Net dependent. But both my Server and Client are developed in C# .Net so I'm okay.</p> <p>Here is a sampling of similar questions on just StackOverflow alone:</p> <ol> <li><a href="https://stackoverflow.com/questions/13551541/wcf-service-returning-array-instead-of-list">WCF service returning array instead of List</a> </li> <li><a href="https://stackoverflow.com/questions/493376/why-does-wcf-return-myobject-instead-of-listt-like-i-was-expecting">Why does WCF return myObject[] instead of List like I was expecting?</a> </li> <li><a href="https://stackoverflow.com/questions/2160052/wcf-service-returning-an-array-of-dictionarystring-object">WCF service returning an array of dictionary</a> </li> <li><a href="https://stackoverflow.com/questions/13513027/wcf-proxy-returning-array-instead-of-list-even-though-collection-type-generic">WCF Proxy Returning Array instead of List EVEN THOUGH Collection Type == Generic.List</a> </li> <li><a href="https://stackoverflow.com/questions/13298066/wcf-returning-array-instead-of-list-even-though-collection-type-generic-list">WCF Returning Array instead of List EVEN THOUGH Collection Type == Generic.List</a> </li> <li><a href="https://stackoverflow.com/questions/2525463/why-does-my-wcf-service-return-and-array-instead-of-a-list-t">Why does my WCF service return and ARRAY instead of a List ?</a> </li> <li><a href="https://stackoverflow.com/questions/14101245/array-instead-of-list-in-wcf-service-proxy-generated-using-svcutil-exe">Array instead of List in WCF Service Proxy Generated using svcutil.exe</a></li> </ol> <p><strong>What I have set up:</strong> <img src="https://i.stack.imgur.com/Dpcat.jpg" alt="Service Reference Configuration"></p> <p>I am generating the Proxy via this command: </p> <pre><code> C:\Program Files (x86)\Microsoft SDKs\Windows\v7.0A\Bin&gt;svcutil.exe /language:cs /out:generatedProxy.cs /config:app.config /ct:System.Collections.Generic.List`1 http://192.168.0.99:9000/ProjectDatabase/?? </code></pre> <p>My service contract looks like this:</p> <pre><code>[ServiceContract] public interface IMyContract { [OperationContract] [ServiceKnownType(typeof(Dictionary&lt;int, string&gt;))] Dictionary&lt;int, string&gt; getClassDictionary(); } </code></pre> <p>My implementation:</p> <pre><code>public Dictionary &lt;int, string&gt; getClassDictionary() { Dictionary&lt;int, string&gt; myDict = new Dictionary&lt;int, string&gt;(); myDict.Add(1, "Geometry"); myDict.Add(2, "Algebra"); myDict.Add(3, "Graph Theory"); return myDict; } </code></pre> <p>Even in my <code>Reference.svcmap</code> I have:</p> <pre><code>&lt;CollectionMappings&gt; &lt;CollectionMapping TypeName="System.Collections.Generic.List`1" Category="List" /&gt; &lt;/CollectionMappings&gt; </code></pre> <p>However, despite my best efforts and research I still get:</p> <blockquote> <p>Dictionary&lt;'int, string'> returning as ArrayOfKeyValueOfintstringKeyValueOfintstring[]</p> </blockquote> <p>And:</p> <blockquote> <p>List&lt;'T'> returning as T[]</p> </blockquote> <p>I feel like I've tried everything and done everything right, but I have to be missing something. So what is it? Thank you for your time, help, and consideration. </p> <p><strong>Update:</strong></p> <p>I've even attempted a route of working around the <code>Array</code> imposition, by writing a <code>serializable</code> <code>struct</code> and adding them to an array. </p> <pre><code>[Serializable] public struct KeyValuePair&lt;K, V&gt; { public K Key { get; set; } public V Value { get; set; } } </code></pre> <p>However, when I return the <code>KeyValuePair&lt;int, string&gt;[]</code>. My proxy is generating a return of <code>KeyValuePairOfintstring[]</code>.</p> <p><strong>Solution is posted below.</strong></p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USCommunity
    1. USDerek W
    plurals
    1. PL
      singulars
      1. LTLinked
    2. PL
      singulars
      1. LTLinked
    3. PL
      singulars
      1. LTLinked
    1. PL
      singulars
      1. LTLinked
    2. PL
      singulars
      1. LTLinked
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POWCF returns ArrayOfKeyValueOfintstringKeyValueOfintstring[] instead of Dictionary<int, string> and Array instread of List
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. POWCF returns ArrayOfKeyValueOfintstringKeyValueOfintstring[] instead of Dictionary<int, string> and Array instread of List
      1. USAnimesh
      1. VTFavorite
    3. VO
      singulars
      1. POWCF returns ArrayOfKeyValueOfintstringKeyValueOfintstring[] instead of Dictionary<int, string> and Array instread of List
      1. This table or related slice is empty.
      1. VTUpMod
    1. COI loved this `ArrayOfKeyValueOfintstringKeyValueOfintstring[]`
      singulars
      1. POWCF returns ArrayOfKeyValueOfintstringKeyValueOfintstring[] instead of Dictionary<int, string> and Array instread of List
      1. USI4V
    2. COWhy would the proxy be generated like that?
      singulars
      1. POWCF returns ArrayOfKeyValueOfintstringKeyValueOfintstring[] instead of Dictionary<int, string> and Array instread of List
      1. USDerek W
    3. COStrange. I just built a new service, host, and client that returns a `Dictionary<int, string>` and it works just fine. Tomorrow I'll write up a new solution and see if that fixes the issue.
      singulars
      1. POWCF returns ArrayOfKeyValueOfintstringKeyValueOfintstring[] instead of Dictionary<int, string> and Array instread of List
      1. USDerek W
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload