Problem in constructor

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I have a class OrderItemcl. and it has not any default constructor.
When i inherit this class in TestOrderItemcl it gives error msg.

OrderItem does not contain any constructor that takes 0 argument.

Posted 26-Aug-12 19:15pm

k@ran

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k@ran 27-Aug-12 1:16am

how to solve this issue ?

2 solutions

Solution 1

Add the following to your OrderItem class :

C#

public class OrderItem
{
   public OrderItem() //add this
   {
   }

   // rest of your code
}

Posted 26-Aug-12 19:22pm

Mehdi Gholam

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k@ran 27-Aug-12 1:39am

can i do it without modifying OrderItemcl class

Mehdi Gholam 27-Aug-12 1:44am

Change the code where you are using it (change the lines where you are getting the error in Visual Studio).

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Kuthuparakkal · Accepted Answer · 2012-08-26T19:38:00

Solution 2

use a constructor on the child class that calls base (parent) constructor as :

C#

public child(int i) : base(i)

Make sure you use appropriate types, I used int i here.

Thanks,

Kuthuparakkal

Posted 26-Aug-12 19:38pm

Kuthuparakkal