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  1. PO
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    <p>Here's the code I promised...</p> <p>It's not state of the art but it's a simple Console Application that gives you an idea about how to approach this. I basically read from the lists (in your case, you'd read from the database tables). Then I add the <code>DateCreated</code> and the Object itself into a custom class that allows one to order all objects by the <code>DateCreated</code> field. The presentation code is up to you, but I show you how to print to the console according to the object type.</p> <pre><code>class Program { static void Main(string[] args) { var projects = new List&lt;Project&gt;{ new Project() { ProjectId = 1, ProjectName = "My Secret Project", DateCreated = DateTime.Today.AddHours(-1) }, new Project() { ProjectId = 2, ProjectName = "My Big Project", DateCreated = DateTime.Today.AddHours(-2) }}; var projectImages = new List&lt;ProjectImage&gt; { new ProjectImage() { ProjectImageId = 1, ProjectImageSize = 17.17, DateCreated = DateTime.Today.AddHours(-3) }, new ProjectImage() { ProjectImageId = 2, ProjectImageSize = 10.17, DateCreated = DateTime.Today.AddHours(-4) }}; var objects = new List&lt;MyCustomClass&gt;(); foreach (var project in projects) { objects .Add( new MyCustomClass() { DateCreated = project.DateCreated, Object = project }); } foreach (var projectImage in projectImages) { objects.Add( new MyCustomClass() { DateCreated = projectImage.DateCreated, Object = projectImage }); } // Objects ordered by Date, Newest first... var objectsByDateCreated = objects.OrderByDescending(o =&gt; o.DateCreated); foreach (var @object in objectsByDateCreated) { Console.WriteLine(string.Format("{0} =&gt; {1}", @object.Object.GetType().Name, @object.DateCreated)); } // Displaying objects according to type foreach (var @object in objectsByDateCreated) { if (@object.Object is Project) { var project = @object.Object as Project; Console.WriteLine(project.ProjectName); } else if (@object.Object is ProjectImage) { var projectImage = @object.Object as ProjectImage; Console.WriteLine(projectImage.ProjectImageSize); } } } } public class MyCustomClass { public DateTime DateCreated { get; set; } public object Object { get; set; } } public class Project { public int ProjectId { get; set; } public string ProjectName { get; set; } public DateTime DateCreated { get; set; } } public class ProjectImage { public int ProjectImageId { get; set; } public double ProjectImageSize { get; set; } public DateTime DateCreated { get; set; } } </code></pre>
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    1. POEntity Framework: Join Entities of Different Types and Order by Date
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    1. USLeniel Maccaferri
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    1. VO
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    1. COBut the sorting is being handled in memory and the questions specifically says EF.
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    2. COFrom his question, where the order occurs doesn't matter in this case. Besides, I can't visualize another way of handling all this in the database server side in a single pass... :)
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      1. USLeniel Maccaferri
    3. COI guess doing unions could work.
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