title: Reset ADO.NET schema
body: <p>I modified a schema (set a field to be non-nullable), but when I try to recreate the mapping with ADO.NET I only see the old schema.</p>
  
  <p>The .edmx file looks like this:</p>
  
  <pre><code>        &lt;EntityType Name="STG_DW_BUF_CODE_D"&gt;
            &lt;Key&gt;
              &lt;PropertyRef Name="BUF_CODE_KEY" /&gt;
            &lt;/Key&gt;
            &lt;Property Name="BUF_CODE_KEY" Type="number" Nullable="false" /&gt;
  
  …
        &lt;EntityType Name="STG_DW_REGION_D"&gt;
          &lt;Property Name="REGION_KEY" Type="number" /&gt;
  </code></pre>
  
  <p>The STG_DW_REGION_D view should have Nullable="false" like the view above it.</p>
  
  <p>I can confirm the new schema has this field non-nullable through another SQL application, but I can't get ADO.NET to notice.</p>
  
  <p>I tried erasing the model and recreating it. I tried closing visual studio and starting it up again. It still sees the old schema.</p>
  
  <p>Does anyone know how to reset it? Any suggestions?</p>