How can I filter data from different object using same method?

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In my Project I use N-tier architecture. For each User Interface (UI page: .aspx extension )there is a single class. These class inherit different Entity class.
In my Data Filtering Layer I want to pass the object of the UI page and want to check.
So for different page I pass different object to my filtering method. How can I filter different object for different page in same filtering method?

Posted 24-Sep-13 22:29pm

Tanumay99

Updated 24-Sep-13 22:33pm

v4

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ArunRajendra 25-Sep-13 4:49am

Give an example.

2 solutions

Solution 1

Well,

Since C# is an object orientated language, you should be able to parse an entire object as you would parse an type of variable. for example :

C#

void ParseSomething(Object obj)
{
   Form a = null;
   if (obj.GetType() == typeof(Form))
      a = (Form)obj;
   if (a != null)
   {
      Label lbl = a.lblName.Text; //Assuming for a second that lblName is public
   }
}

I hope this is what you meant, or else please provide an example.

Posted 24-Sep-13 22:59pm

Rick van Woudenberg

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*Suvabrata Roy* · Accepted Answer · 2013-09-24T23:01:00

Hi,

As far I can understand that's a problem of tight couple.

What you can do....

C#

public interface IFilterable
{
object Filter();
}

implement the same in you Entity Class and then Call Filter Function from your DataFilter Layer

[Update]

C#

public interface IFilterable
    {        
        object Filter();
    }
    
    public abstract class EntityRepo<T> : IFilterable
    {        
        public virtual object Filter()
        {
            return null;
        }
    }
    public class EmpRepo : EntityRepo<EntityEmp>
    {
        public object Filter()
        {            
            // write your logic
            return new List<EntityEmp>();
        }
    }
    public class EntityEmp : IFilterable
    {
        public int ID { get; set; }
        public string Name { get; set; }
       
    }
    // Data Filter Layer 

    public class FilterData
    {
        public IEnumerable< T> GetFilteredData<T>(IFilterable Fltr)
        {
            return (IEnumerable<T>)Fltr.Filter();
        }
    }

I think it will help you...