Use variables to call dynamic methods / parameters

Question

5.00/5 (2 votes)

See more:

Hi there,

I'm trying to dynamically get all properties and their values from dynamic objects.
This is the code I have so far:

C#

//The code that should show the parameter and the parameter value
class MdlObject
{
    public void Insert(dynamic anObject)
    {
        var propertyInfos = anObject.GetType().GetProperties();
        // sort properties by name
        // write property names
        foreach (var propertyInfo in propertyInfos)
        {
            //this works perfect, returns Name and Id
            MessageBox.Show(propertyInfo.Name);
            //Gives an error, because it literally calls "anObject.propertyInfo.Name"
            MessageBox.Show(anObject.propertyInfo.Name);
            //This works, thanks Nishant Sivakumar :)
            MessageBox.Show(propertyInfo.GetValue(anObject, null).ToString());

        }
    }

C#

//Example of a simple object I want to put in
class Mdltest
{
    public String Name { get; set; }
    public int Id { get; set; }
}

C#

//Example of how to call it
var test= new Mdltest{Id = 10, Name = "just testing"};
var tmp = new MdlObject();
tmp.Insert(test);

Could someone tell me how I'm suppose to fix the "anObject.propertyInfo.Name" part? because when I use that it literally calls "anObject.propertyInfo.Name", and not for example anObject.Name and anObject.Id ...

Thanks in advance for the help :)

Gr.

Posted 13-Jul-10 8:36am

Necrowizard

Updated 13-Jul-10 9:48am

v3

Add a Solution

Comments

Nish Nishant 13-Jul-10 15:18pm

Reason for my vote of 5
Well phrased question. Worth a 5!

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

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

Nish Nishant · Accepted Answer · 2010-07-13T09:17:00

That won't work, you can do it this way:

C#

class MdlObject
{
    public void Insert(dynamic anObject)
    {
        var propertyInfos = anObject.GetType().GetProperties();
        foreach (var propertyInfo in propertyInfos)
        {
            MessageBox.Show(propertyInfo.Name);
        }

        MessageBox.Show(anObject.Name);
        MessageBox.Show(anObject.Id.ToString());
    }
}

Or do this:

C#

foreach (var propertyInfo in propertyInfos)
{
    MessageBox.Show(propertyInfo.Name);
    MessageBox.Show(propertyInfo.GetValue(anObject, null).ToString());
}

Martin Jarvis · Accepted Answer · 2010-07-13T09:10:00

Solution 1

You need to call the GetValue method on the PropertyInfo, passing in the object you want to query.

Posted 13-Jul-10 9:10am

Martin Jarvis

Comments

Necrowizard 13-Jul-10 15:38pm

Reason for my vote of 3
Thanks, that was the right method, not very well explained, like answer 2 tho