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home / developersection / forums / how to filtering with the entity framework is an asp.net mvc application
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Anupam Mishra
Anupam Mishra

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1 Answers

Anupam Mishra
Anupam Mishra 05 Feb 2016
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Finally, I have resolve this problem.
For Solution of above problem, we are creating  one student controller and its index view. We want to display  a Filter records(i.e. First Name,Last Name ) in index view. For this we create a search string text box in a view for searching  FirstName,LastName in student records.
this is a code of Student controller Index Action:
public ActionResult Index(string sortOrder, string searchString, string currentFilter)
{
ViewBag.NameSortParm = String.IsNullOrEmpty(sortOrder) ? "Name" : "";
ViewBag.DateSortParm = sortOrder == "Date" ? "Date_desc" : "Date";
ViewBag.CurrentFilter = searchString;
if (!String.IsNullOrEmpty(searchString))
    {
        students = students.Where(s => s.FirstName.ToUpper().Contains(searchString.ToUpper())
                               || s.LastName.ToUpper().Contains(searchString.ToUpper()));
    }
{
        students = students.Where(s => s.FirstName.ToUpper().Contains(searchString.ToUpper())
|| s.LastName.ToUpper().Contains(searchString.ToUpper()));
}
   var students = from s in db.Student  // Student is a table i.e. containing records of student
select s;
switch (sortOrder)
{
case "Name":
         students = students.OrderByDescending(s => s.FirstName);
break;
case "Date":
         students = students.OrderBy(s => s.EnrollmentDate);
break;
case "Date_desc":
         students = students.OrderByDescending(s => s.EnrollmentDate);
break;
default:
         students = students.OrderBy(s => s.FirstName);
break;
}
return View(students.ToList());
}
Now. we have changed the index view of student. Code is as Follows: 
  <h2>Student Index</h2>

    <p>

    @Html.ActionLink("Create New",  "Create")

    @using (Html.BeginForm("Index", "Student", FormMethod.Get))

     {

    <p>

        Find by name: @Html.TextBox("SearchString", ViewBag.CurrentFilter as string)  

        <input type="submit" value="Search" />
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