1. Home
  2. Forum
  3. ASP.NET Core
  4. Drop Down List

Drop Down List

Hi Support

Could you show me how to populate Drop down List in a Grid field using a table from EF

Regards

Edmund Herbert

1 Reply
FS Farveen Sulthana Thameeztheen Basha Syncfusion Team August 3, 2017 05:48 PM UTC

Hi Edmund, 

Thanks for contacting Syncfusion Support. 

We have created sample with Entity framework by creating the db NorthWNDContext_context and bind to the Grid datasource. Also we have bind the Employee db to the dropdown datasource of the Grid column.Please refer to the code example:- 

<ej-grid id="Grid" allow-paging="true" allow-sorting="true" action-complete="onComplete"> 
      <e-datamanager json="(IEnumerable<Orders>)ViewBag.datasource" remove-url="Home/Delete" update-url="Home/Update" insert-url="Home/Insert" adaptor="remoteSaveAdaptor"></e-datamanager> 
                <e-edit-settings allow-adding="true" allow-editing="true" allow-deleting="true" ></e-edit-settings> 
                <e-columns> 
                    <e-column field="OrderID" is-primary-key="true" header-text="Order ID" text-align="Right"></e-column> 
                    <e-column field="CustomerID" header-text="CustomerID" edit-type="String"></e-column> 
                    <e-column field="ShipCity" header-text="Ship City datasource="(IEnumerable<Employee>)ViewBag.datasource"  edit-type="Dropdown"></e-column> 
                </e-columns> 
             
    </ej-grid> 

Serverside:- 

public class HomeController : Controller 
    { 
        private NORTHWNDContext _context; 
        public HomeController(NORTHWNDContext context) 
        { 
            _context = context; 
        } 
 
        public IActionResult Index() 
        { 
 
            List<Orders>  Result = _context.Orders.Take(100).ToList(); 
            ViewBag.datasource = Result; 
                            List<Employee> data = new List<Employee>(); 
            data = db.Employees.ToList(); 
            ViewBag.DataSource = data; 
            return View(); 
          } 
                   } 
        public List<Orders> GetData() 
        { 
 
            List<Orders> datas = _context.Orders.Take(100).ToList(); 
            return datas; 
        } 
                   
      public ActionResult Data([FromBody]DataManager dm) 
        { 
            IEnumerable Data = _context.Orders.Take(100).ToList(); 
 
            Syncfusion.JavaScript.DataSources.DataOperations operation = new Syncfusion.JavaScript.DataSources.DataOperations(); 
            if (dm.Sorted != null && dm.Sorted.Count > 0) //Sorting 
            { 
                Data = operation.PerformSorting(Data, dm.Sorted); 
            } 
            if (dm.Where != null && dm.Where.Count > 0) //Filtering 
            { 
                Data = operation.PerformWhereFilter(Data, dm.Where, dm.Where[0].Operator); 
            } 
            if (dm.Search != null && dm.Search.Count > 0) //searching 
            { 
                Data = operation.PerformSearching(Data, dm.Search); 
            } 
 
            int count = Data.AsQueryable().Count(); 
            if (dm.Skip != 0) 
            { 
                Data = operation.PerformSkip(Data, dm.Skip); 
            } 
            if (dm.Take != 0) 
            { 
                Data = operation.PerformTake(Data, dm.Take); 
            } 
            return Json(new { result = Data, count = count }); 
         
    } 
        public class DataResult 
        { 
            public IEnumerable result { get; set; } 
            public int count { get; set; } 
            public IEnumerable aggregate { get; set; } 
            public IEnumerable groupDs { get; set; } 
        } 
 
        public ActionResult CellEditInsert([FromBody]EditParams value) 
        { 
            var datas = _context; 
            datas.Orders.Add(value.value); 
            datas.SaveChanges(); 
            return Json(value); 
        } 
        public ActionResult CellEditUpdate([FromBody]EditParams value) 
        { 
            var db = _context; 
            db.Entry(value.value).State = EntityState.Modified; 
            db.SaveChanges(); 
            return Json(value); 
 
        } 
        public ActionResult CellEditDelete([FromBody]EditParams value) 
        { 
            var db = _context; 
            Orders order = db.Orders.Where(c => c.OrderID == Convert.ToInt32(value.key)).FirstOrDefault(); 
            db.Orders.Remove(order); 
            db.SaveChanges(); 
            return Json(order); 
        } 


Please refer to the sample and documentation link :- 



Regards, 

Farveen sulthana T 


Loader.
Up arrow icon