Introduction:
Here we will learn how to get object property names and
values using reflection reflection in c#,
vb.net
with example or use reflection to get all property types and names of an object
in c#, vb.net
with example or reflection to get all properties of any object in c#,
vb.net
or Type.GetAllProperties reflection method to get all properties and values of
an object in c#, vb.net
with example. By using Reflection
properties we can easily get all object property names and values based on our
requirements.
Description:
In previous articles I explained send display images in gridview from database in asp.net, asp.net upload image and show image preview before upload, Display images in crystal reports in asp.net with example, asp.net open pdf file in web browser with example, jQuery zoom image on mouse over with example, dictionary object in c#, vb.net with example, static constructor in c#, vb.net with example, difference between ref and out in c#, vb.net with example
and many more articles related to generic list, asp.net,
mvc, c#,
vb.net.
Now I will explain how to use reflection to get object property names and values
in c#, vb.net
with example.
By using Reflection PropertiesInfo we can easily get object list property names and
values based on our requirements.
Following is the simple code snippet to get all the
property names and values of an object in c#,
vb.net
using reflection.
C#
Code
Type type =
user.GetType();
PropertyInfo[]
props = type.GetProperties();
string str = "{";
foreach (var prop in props)
{
str+= (prop.Name+":"+ prop.GetValue(user))+",";
}
return str.Remove(str.Length-1)+"}";
|
VB.NET Code
Dim type As Type = user.[GetType]()
Dim props() As PropertyInfo =
type.GetProperties()
Dim str As String = "{"
For Each prop In props
str += (prop.Name + ":" + CStr(prop.GetValue(user))) + ","
Next
Return str.Remove(str.Length - 1) + "}"
|
If you want complete example to get all the properties
and values of an object write the code like as shown following.
C#
Code
using System;
using
System.Collections.Generic;
using
System.Reflection;
namespace
SampleConsoleApp
{
class Program
{
static void Main(string[] args)
{
List<userdetails>
items = new List<userdetails>();
items.Add(new userdetails { userid = 1, username = "suresh",
location = "chennai" });
items.Add(new userdetails { userid = 2, username = "rohini",
location = "guntur" });
items.Add(new userdetails { userid = 3, username = "praveen", location = "bangalore" });
items.Add(new userdetails { userid = 4, username = "sateesh", location = "vizag" });
items.Add(new userdetails { userid = 5, username = "madhav",
location = "nagpur" });
items.Add(new userdetails { userid = 6, username = "honey",
location = "nagpur" });
string strmsg = string.Empty;
foreach (var user in items)
{
strmsg = GetPropertyValues(user);
Console.WriteLine(strmsg);
}
Console.ReadLine();
}
private static string
GetPropertyValues(userdetails user)
{
Type type =
user.GetType();
PropertyInfo[]
props = type.GetProperties();
string str = "{";
foreach (var prop in props)
{
str+= (prop.Name+":"+ prop.GetValue(user))+",";
}
return
str.Remove(str.Length-1)+"}";
}
}
class userdetails
{
public int userid { get; set; }
public string username {
get; set; }
public string location {
get; set; }
}
}
|
VB.NET Code
Imports
System.Reflection
Module Module1
Sub Main()
Dim items As New List(Of userdetails)()
Dim user As New userdetails()
items.Add(New userdetails() With {
.userid = 1,
.username = "suresh",
.location = "chennai"
})
items.Add(New userdetails() With {
.userid = 2,
.username = "rohini",
.location = "guntur"
})
items.Add(New userdetails() With {
.userid = 3,
.username = "praveen",
.location = "bangalore"
})
items.Add(New userdetails() With {
.userid = 4,
.username = "sateesh",
.location = "vizag"
})
items.Add(New userdetails() With {
.userid = 5,
.username = "madhav",
.location = "nagpur"
})
items.Add(New userdetails() With {
.userid = 6,
.username = "honey",
.location = "nagpur"
})
Dim strmsg As String = String.Empty
For Each user In items
strmsg = GetPropertyValues(user)
Console.WriteLine(strmsg)
Next
Console.ReadLine()
End Sub
Private Function
GetPropertyValues(user As userdetails) As String
Dim type As Type = user.[GetType]()
Dim props() As PropertyInfo =
type.GetProperties()
Dim str As String = "{"
For Each prop In props
str += (prop.Name + ":" + CStr(prop.GetValue(user))) + ","
Next
Return
str.Remove(str.Length - 1) + "}"
End Function
Class userdetails
Public Property userid() As Integer
Get
Return m_userid
End Get
Set
m_userid = Value
End Set
End Property
Private m_userid As Integer
Public Property username()
As String
Get
Return m_username
End Get
Set
m_username = Value
End Set
End Property
Private m_username
As String
Public Property location()
As String
Get
Return m_location
End Get
Set
m_location = Value
End Set
End Property
Private m_location
As String
End Class
End Module
|
If you observe above code we added namespace “System.Reflection” to get properties
and values of an object using PropertyInfo
property.
Demo
When we run above code we will get result like as shown
below
 |
|
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