Question

How can I access dynamically properties from a generated LINQ class ?

Cause I would like to be able to customize the displayed table columns where Partner is the LINQ Class generated from a SQL Server Database Table.

<table class='grid'>   <thead>    <tr>      <% foreach (Column c in (IEnumerable)ViewData['columns']) { %>      <th><%= c.Title %></th>          <% } %>                                   </tr>  </thead>  <tbody>  <% foreach (Partner p in (IEnumerable)ViewData.Model) { %>    <tr>      <% foreach (Column c in (IEnumerable)ViewData['columns']) { %> ?????   <th> <%= p.GetProperty(c.Name) %>  </th>  ?????      <% } %>             </tr>         <% } %>   </tbody> </table> 

Any idea how the code of the p.GetProperty(c.Name) method could look like ?

Forgive me if the Question is very simple but as I’m new to C# and LINQ I really couldn’t figure it out.

Answer 1

Reflection is a pretty good fit here, but really – everything is known at compile time. So it’s possible to specify everything at design time.

public class DataItem {   string Title {get;set;}   object Value {get;set;} }  public interface IDataItems {   IEnumerable<DataItem> Items() }   //suppose LINQ gives you this: public partial class Customer {   public string Name {get;set;}   public string Address {get;set;}   public int Age {get;set;} }  //then you add this in another file. //if there's a lot of this, it can be code genned by design-time reflection public partial class Customer : IDataItems {   public IEnumerable<DataItem> IDataItems.Items()   {     yield return new DataItem() {'Name', Name};     yield return new DataItem() {'Address', Address};     yield return new DataItem() {'Age', Age};   } }  //and the foreach loops look like this: foreach(DataItem d in ViewData.OfType<IDataItems>().First().Items()) {   d.Title; }  foreach(IDataItems container in ViewData.OfType<IDataItems>()) {     foreach(DataItem d in container.Items())     {        d.Value;     } }