How to make not matching properties value as null

Question

0.00/5 (No votes)

See more:

Hi All,

Iam having a class with 100 properties and another mapping class with 20 properties which will match with in 100 properties. Now when I map with mapping object I should get 100 properties with values of 20 properties which were matched, remaining 80 properties should get null though its having value. How to achieve this can you guys help me on this.

Please let me know if I am not clear.

Ex:
1)

new class {
               Property1 = value,
               property2=value,
               property3= value
             }

2) Mapping class:

new class {
             Property1,
               property2
}

Output should be:

{
      Property1 = value,
      property2=value,
      property3= null
}

What I have tried:

I am not having any best solution. My thought was looping the properties and make null non matching properties. Please suggest me the best solution for this.

Posted 8-Dec-16 22:50pm

NaVeN Kumar

Updated 12-Dec-16 12:56pm

Add a Solution

Comments

F-ES Sitecore 9-Dec-16 4:52am

You haven't shown your code so how can we tell you what the problem is?

NaVeN Kumar 9-Dec-16 4:54am

I am not sure whether my thought is best solution or not. I will try it and post.

CPallini 9-Dec-16 5:22am

I see no alternative to looping.

Nathan Minier 9-Dec-16 10:42am

Constructor injection would work.

public MyClassWith100Props(MyMappingClass map){ ... //assign }

1 solution

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)

Mehedi Shams · Answer 1 · 2016-12-12T12:56:00

Hi NaVeN,

Your idea of looping through properties should work. You need to add the reflection namespace:

C#

using System.Reflection;

Then you need to access the properties of the 100-value class, and the matching class. For this you store all of them in PropertyInfo[] array:

C#

PropertyInfo[] PropertiesOf100Class = typeof(ClassHaving100Properties).GetProperties();
PropertyInfo[] PropertiesOfMappingClass = typeof(MappingClass).GetProperties();

Then you browse through each property of the matching class and see if there is a match in the primary class (i.e. the class having 100 values).

C#

foreach (var MatchingProperty in PropertiesOfMappingClass)
    foreach (var Property in PropertiesOf100Class)                
        if (MatchingProperty.Name.Equals(Property.Name))
            MessageBox.Show(Property.Name); // Replace this line with whatever you want to do.

Please change the classnames accordingly.