Databases
StackOverflow2013
Postsdbo
PO
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO
    primarykey
    data
    text
    <pre><code>var searchTarget = typeof(ITarget&lt;&gt;); var dict = Assembly.GetExecutingAssembly() .GetTypes() .SelectMany(t =&gt; t.GetInterfaces() .Where(i =&gt; i.IsGenericType &amp;&amp; (i.GetGenericTypeDefinition() == searchTarget) &amp;&amp; !i.ContainsGenericParameters), (t, i) =&gt; new { Key = i.GetGenericArguments()[0], Value = t }) .ToDictionary(x =&gt; x.Key, x =&gt; x.Value); </code></pre> <p>Note that if you have multiple classes implementing <code>ITarget&lt;&gt;</code> and using the same generic type argument -- for example, <code>class Foo : ITarget&lt;string&gt;</code> and <code>class Bar : ITarget&lt;string&gt;</code> -- then the <code>ToDictionary</code> call will fail with an <code>ArgumentException</code> complaining that you can't add the same key twice.</p> <p>If you do need a one-to-many mapping then you have a couple of options available.</p> <ol> <li><p>Use <a href="http://msdn.microsoft.com/en-us/library/bb549211.aspx" rel="nofollow noreferrer"><code>ToLookup</code></a> rather than <code>ToDictionary</code> to generate a <a href="http://msdn.microsoft.com/en-us/library/bb460184.aspx" rel="nofollow noreferrer"><code>Lookup&lt;K,V&gt;</code></a>:</p> <pre><code>var dict = Assembly.GetExecutingAssembly() .GetTypes() .SelectMany(/* ... */) .ToLookup(x =&gt; x.Key, x =&gt; x.Value); </code></pre></li> <li><p>If you prefer to work with something like a <code>Dictionary&lt;K,List&lt;V&gt;&gt;</code> then you could do this:</p> <pre><code>var dict = Assembly.GetExecutingAssembly() .GetTypes() .SelectMany(/* ... */) .GroupBy(x =&gt; x.Key, x =&gt; x.Value) .ToDictionary(g =&gt; g.Key, g =&gt; g.ToList()); </code></pre></li> </ol>
    singulars
    1. This table or related slice is empty.
    1. POHow do I put all types implementing a certain generic interface in a dictionary?
      singulars
      1. PTQuestion
    1. PTAnswer
    1. USLukeH
    1. USLukeH
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. POHow do I put all types implementing a certain generic interface in a dictionary?
      singulars
      1. PTQuestion
    1. This table or related slice is empty.
    1. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTAcceptedByOriginator
    1. COAlternate: `AppDomain.CurrentDomain.GetAssemblies().SelectMany(x => x.GetTypes(). //etc`
      singulars
      1. PO
      1. USWill
    2. COWorked perfectly! Thanks very much. One question, though: what is the motivation for adding `!i.ContainsGenericParameters`?
      singulars
      1. PO
      1. USJames Wenday
    3. CO`!i.ContainsGenericParameters` excludes `class C<T> : ITarget<T> { ... }`.
      singulars
      1. PO
      1. USAnton Tykhyy
 

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