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    <p>This will be difficult if your entity types do not all implement the same interface or derive from the same class. If they do, it's pretty simple:</p> <pre><code>// example base type, which your entities would need to implement public interface IApprovable { public int ID {get; set;} public string Approved_by {get; set;} public DateTime Approved_on {get; set;} } //... public void ApproveRowTable&lt;T&gt;(List&lt;int&gt; idValues) where T : IApprovable { using(var context = new SSPModel.sspEntities()) { var table = context.Set&lt;T&gt;(); var entities = table.Where(e =&gt; idValues.Contains(e.ID)); foreach(var entity in entities) { entity.Approved_by = GlobalClass.GlobalVar; entity.Approved_on = DateTime.Now; } context.SaveChanges(); } } </code></pre> <p>If your entity types do not implement a common base type, then you should modify them by creating empty partials which do implement it:</p> <pre><code>public partial class GeneralRule : IApprovable {} </code></pre> <p>If you cannot do that, then you can do something like the following. (I'm assuming <code>ID</code> is the PK, so we can use <code>Find()</code> rather than needing to build an expression:</p> <pre><code>public void ApproveTableRows(Type entityType, IEnumerable&lt;int&gt; idsToApprove) { using(var context = new SSPModel.sspEntities()) { var set = context.Set(entityType); if(set == null) throw new ArgumentException("No DbSet found with provided name", "tableSetName"); var approveByProperty = entityType.GetProperty("Approved_by"); var approveOnProperty = entityType.GetProperty("Approved_on"); if(approveByProperty == null || approveOnProperty == null) throw new InvalidOperationException("Entity type does not contain approval properties"); foreach (object id in idsToApprove) { var entityInstance = set.Find(id); approveByProperty.SetValue(entityInstance, GlobalClass.GlobalVar); approveOnProperty.SetValue(entityInstance, DateTime.Now); } context.SaveChanges(); } } </code></pre> <p>As you can see, this is less efficient, as it issues a new query for each ID rather than getting them all at once. Also, the method accepts an entity <code>Type</code> rather than a string, to avoid the need to hunt down the right property by reflection. This could be improved, but really I think you should probably update your entities to implement a shared interface.</p>
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    1. USSteve Ruble
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