C#

var QCViewAllHistValue1 = (from frmlst in cfList
   join viewalllst in QCViewAllBrokerList1
   on new
   {
       val = String.IsNullOrEmpty(frmlst.Section) ? "" : frmlst.Section.Trim().ToUpper(),
       val1 = String.IsNullOrEmpty(frmlst.xFundCode) ? "" : frmlst.xFundCode.Trim().ToUpper(),
       val2 = String.IsNullOrEmpty(frmlst.Period) ? "" : frmlst.Period.Replace("A", "").Replace("E", "").Trim().ToUpper(),
       val3 = String.IsNullOrEmpty(frmlst.Broker) ? "" : frmlst.Broker.Trim().ToUpper()
   }
   equals new
   {
       val = String.IsNullOrEmpty(viewalllst.ViewAllSection) ? "" : viewalllst.ViewAllSection.Trim().ToUpper(),
       val1 = String.IsNullOrEmpty(viewalllst.xFundCode) ? "" : viewalllst.xFundCode.Trim().ToUpper(),
       val2 = String.IsNullOrEmpty(viewalllst.ViewAllPeriod) ? "" : viewalllst.ViewAllPeriod.Replace("A", "").Replace("E", "").Trim().ToUpper(),
       val3 = String.IsNullOrEmpty(viewalllst.ViewAllBroker) ? "" : viewalllst.ViewAllBroker.Trim().ToUpper()
   }

   select new QCHelper()
   {
       Value = viewalllst == null ? string.Empty : (viewalllst.Value == null ? string.Empty : viewalllst.Value),
   }).ToList<QCHelper>();

while (true)
   {

       Thread.Sleep(40);



           // Butoes do mouse=====================
       if (Control.MouseButtons == MouseButtons.Left)
       {
        MessageBox.Show("Left");

       }

       if (Control.MouseButtons == MouseButtons.Right)
       {
           MessageBox.Show("Right");

       }

Can anyone provide an example, or point  me to a walkthrough? 
I need clarification on how to make a sql table(SQL Express) using code first approach in entity framework model and:(add, edit, save & delete) in that table, and to do that using MVVM pattern, in a WPF application. 
Specifically I am facing a problem in trying to create the database using the c# code in the wpf application without having to access the SQl Server Management Studio to create the database.

I would really appreciate any advice.

Console.WriteLine("-----Enter at least 10 numbers-----");
            int[] num = new int[10]; //array declaration
            int input = 0; //initialization for the while loop
            //using a while loop method to store value in the index
            while (input <= 10)
            {
                Console.Write("Enter a whole number: ");
                num[input] = Convert.ToInt32(Console.ReadLine());
                input++;
            }
            //using for loop to display Even numbers from your elements
            Console.Write("\nThis are the list of Even Numbers: ");
            int Even = 0;
            while (Even < 10)
            {
                if (num[input] % 2 == 0)
               
                    Console.Write(num[input]);
                Even++;
            }
            //using for loop to display Odd numbers from your elements
            Console.Write("\nThis are the list of your Odd Numbers: ");
            int Odd = 0;
            while (Odd < 10)
            {
                if (num[input] % 2 == 1)
                
                    Console.Write(num[input]);
                Odd++;
            }
            Console.ReadLine();