How to pass table object as parameter to a linq expression method?

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C#

LINQ

C#4.0

.NET4

Hello Codeproject,

How can I send parameter to an Expression method in Linq??

When I am Trying this.

var y3 = from p in Dc.Table4s where funtion(new Table4(){Num = 1}) select p;

Getting result in y3.

But, when I try to pass p as parameter its raising error ' Operator '==' cannot be applied to operands of type 'bool' and 'AliasRnD.YesNo'

var y4 = from p in Dc.Table4s where funtion(p) == YesNo.Yes select p;

How to pass p as a parameter and get the same result?
My code is given below.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.Linq.Expressions;
using System.Collections;

namespace AliasRnD 
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window 
    {
        public MainWindow()
        {
            InitializeComponent();
            DataClasses1DataContext Dc = new DataClasses1DataContext();

               
            System.Linq.Expressions.Expression<Func<Table4, Boolean>> expression1 = IsEqual(YesNo.Yes);
            var funtion = expression1.Compile();

                      var y3 = from p in Dc.Table4s where funtion(new Table4(){Num = 1}) select p;


            var y4 = from p in Dc.Table4s where funtion(p) == YesNo.Yes select p;
             
           
              }

        Expression<Func<Table4, bool>> IsEqual(YesNo val) 
        {
            return ((p) => p.Num == (int?)val);
        }
           
        
 
   public  enum YesNo : int
    {
        Yes = 1, No = 2
    }

Regardz

Salam6331