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Posted 6 Jun 2011

Looping through Object's properties in C#

, 6 Jun 2011 CPOL
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Loop to Find All Properties Info of an Object In C# ..

Have you ever tried to make a dynamic test page? To build and HTML element contains all the properties of a specific .Net object?

Well, I encountered this problem couple of days ago and while searching Google I barely found good matches.  So I decided that for my sake, and yours, I will simply post a short explanation about how to do it, followed by a quick and simple example of how to loop though object properties in C#.

First I'll provide a short explanation about Reflection:
Reflection enables you to discover an object's properties, methods, events and properties values at run-time.  Reflection can give you a full mapping of an object (well, it's public data).

In order to use reflection, and to loop through the object's properties, we'll first have to import the namespace:

using System.Reflection;

Now, lets say I have an object called User and this object has 2 public properties:

  1. UserID.
  2. Name.
My code will look something like this:
int testID = 123456; 
User usr = new User(testID); // this is constructor to get user by ID
StringBuilder sb = new StringBuilder();

PropertyInfo[] properties = user.GetType().GetProperties();
foreach (PropertyInfo pi in properties)
        string.Format("Name: {0} | Value: {1}", 
                pi.GetValue(user, null)
divResults.InnerText = sb.ToString();

This little piece of code will fill your HTML element with the properties names and values.

Have Fun,


This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


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QuestionExcellent! Pin
Camilo Reyes27-Mar-16 2:27
professionalCamilo Reyes27-Mar-16 2:27 
GeneralMy vote of 3 Pin
Diamonddrake25-Feb-13 19:01
memberDiamonddrake25-Feb-13 19:01 

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