title: How can I declaratively read app settings from ServiceConfiguration.cscfg?
body: <p>Web.Config</p>
  
  <pre><code>&lt;appSettings&gt;
     &lt;add key="minimumValue" value="0" /&gt;
     &lt;add key="maximumValue" value="1000" /&gt;
  &lt;/appSettings&gt;
  </code></pre>
  
  <p>Web Form</p>
  
  <pre><code>&lt;asp:RangeValidator ID="RangeValidator1" runat="server" Display="None" ErrorMessage="Error message." ControlToValidate="TextBox" MinimumValue="&lt;%$ appSettings:minimumValue %&gt;" MaximumValue="&lt;%$ appSettings:maximumValue %&gt;" Type="Integer" /&gt;
  </code></pre>
  
  <p>App settings in Web.config file are read-only after deployment process.
  So I put these settings to ServiceDefinition.csdef and ServiceConfiguration.cscfg files and I can read them via code-behind:</p>
  
  <pre><code>RoleEnvironment.GetConfigurationSettingValue
  </code></pre>
  
  <p><strong>Does it exists declarative way for this?</strong></p>
  
  <p>Like &lt;%$ appSettings:maximumValue %> for app setting in Web.Config.</p>