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copied!<p>Based on my understanding, <strong>Prism</strong> loads and show by default the first <strong>View</strong> that gets registered on each <strong>Region</strong> (Only the first <strong>View</strong> would be shown if the region is set on a <strong>ContentControl</strong> item).</p> <p>Therefore, you could <em>deactivate</em> the undesired <strong>Views</strong> on each <strong>RegionBehavior</strong> you don't want to show at startUp. This would make that when the desired <strong><em>StartUp View</em></strong> is added, it would get <em>activated</em> as there is no other <em>active</em> <strong>View</strong> yet. </p> <p>Another alternative would be to register each <strong>View</strong> on the corresponding <strong>Module</strong> <em>initialize()</em> method, instead of using <strong>RegionBehaviours</strong>. So finally, after adding each <strong>View</strong> to the corresponding <strong>Region</strong>, you would decide to <em>deactivate</em> the <strong>View</strong> whether it is the <strong><em>StartUp View</em></strong> or not.</p> <p><strong>UPDATE:</strong></p> <p>The following implementation shows a possible alternative for <strong><em>deactivating</em></strong> non-startup <strong>Views</strong> on each <strong>RegionBehavior</strong>. In order to get a more elegant solution, you could create a dictionary or a simple static class that would return the <strong>StartUpView</strong> name for the corresponding <strong>Region</strong>, and then call it as shown below:</p> <pre><code>private void AddRegisteredViews() { ... var view = viewEntry.Value; if (!Region.Views.Contains(view)) { Region.Add(view); if (view.GetType().Name != StartUpViewNames.getViewNameFromRegion(Region)) { Region.deactivate(view); } } ... } </code></pre> <p>Notice that I after the <strong>StartUpView</strong> is found and it is kept <em>active</em>, it continues deactivating the following added <strong>views</strong>, but you could leave them <em>active</em>. As I mentioned, the <strong>View</strong> that would be shown, would be the first one which gets <em>Active</em> in the <strong>Region</strong>.</p> <p>I hope this helps, Regards.</p>

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