Converting TRUE FALSE to YES NO

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C#

ASP.NET

SQL

MVC

i am picking BIT field from SQL server ISApproved field which stores 0 , 1 but when i pick it in my C# then it shows TRUE FALSE in column but i want YES NO instead of it.

CODE:

public ActionResult ShowHrEmployeeRec(int? EmplID = null)
        {
            if (!String.IsNullOrEmpty(Session["Admin"] as string))
            {

                IEnumerable<GetHrEmployeeResult> HrEmployee = DataContext.GetHrEmployee(EmplID).ToList();
                ViewBag.Month = Request.QueryString["Month"];
                return View(HrEmployee);
            }
            else
            {
                return RedirectToAction("IsAuth_Page", "Home");
            }
VIEW:

 @{
 
     var grid = new WebGrid(ViewData.Model, defaultSort: "EmplID", rowsPerPage: 1);
    
  }

  @if (Model.Count > 0)
  {
      <div id="AllEmpGrid_ByName">
       @grid.GetHtml(columns: grid.Columns(
                                            grid.Column("EmplID", "Employee ID"),
                                            grid.Column("EmplName", "Employee Name"),
                                            grid.Column("DeptName", "Department"),
                                            grid.Column("ShiftName", "Shift"),
                                            grid.Column("EntryDate", "Entry Date"),
                                            grid.Column("BasicSalary", "Basic Salary"),
                                            grid.Column("EmailAdd", "Email"),
                                            grid.Column("OvertimeApproved", "Overtime Approval")
                                           ))
     </div>
  }