When using TreeList widget with a simple model like this:

public class MyModel
{
     public int? Id {get;set;}
     public int? ParentId {get;set;}
     public string Name {get;set;}
}

...

@(Html.Kendo().TreeList<MyModel>().Name("treeList")
    .Toolbar(t=>t.Create())
    .Editable(e=>e.Mode("popup"))
    .DataSource(ds=>ds
          .Model(m=>
          {
               m.Id(f=>f.Id);
               m.ParentId(f=>f.ParentId);
               m.Field(f=>f.Name);
          })
         .Create(c=>c.Action("Create", "My"))
        )
        .Columns(c=>
        {
c.Add().Field(f=>f.Id);
c.Add().Field(f=>f.ParentId)
c.Add().Field(f=>f.Name)
        })
)

When filling the popup, there are no error, but the item is NOT inserted in the treeList. If I change the type of the Id and ParentId to non nullable, the problem is solved.

In your demo, the model seems to have nullable fields as Id and ParentId, but there are no demo of item creation. Is it a bug or something missing in my code?When using TreeList widget with a simple model like this:

public class MyModel
{
     public int? Id {get;set;}
     public int? ParentId {get;set;}
     public string Name {get;set;}
}

...

@(Html.Kendo().TreeList<MyModel>().Name("treeList")
    .Toolbar(t=>t.Create())
    .Editable(e=>e.Mode("popup"))
    .DataSource(ds=>ds
          .Model(m=>
          {
               m.Id(f=>f.Id);
               m.ParentId(f=>f.ParentId);
               m.Field(f=>f.Name);
          })
         .Create(c=>c.Action("Create", "My"))
        )
        .Columns(c=>
        {
c.Add().Field(f=>f.Id);
c.Add().Field(f=>f.ParentId)
c.Add().Field(f=>f.Name)
        })
)

When filling the popup, there are no error, but the item is NOT inserted in the treeList. If I change the type of the Id and ParentId to non nullable, the problem is solved.

In your demo, the model seems to have nullable fields as Id and ParentId, but there are no demo of item creation. Is it a bug or something missing in my code?

Regards

Filter option is working with columns not having clientTemplates like AccountName but not in others.

In synchronous mode, it's easy to take a server side action when all files are processed via foreach (var file in files), when it is completed. But how to do this in async mode? The server controller has no notion of the total number of files. And I don't see an Event fired when all the files are upload, although the control has the "Done" UI indication.

thanks, Tom

I'm creating a grid for a model that has child relationship that is not required.  The grid displays when the child has a value but if the child is null then I get a message that a value can't be null.  For example.   If my model is:

public class ProjectTypeViewModel
{
     [Column("ManpowerProjectTypeID")]
     public int ID { get; set; }

     [StringLength(50)]
     [Display(Name = "Project Type")]
     public string ProjTypeDesc { get; set; }

     [UIHint("ClientProjectType")]
     public ProjectTypeComboViewModel ParentProjectType { get; set; }
}

public class ProjectTypeComboViewModel
{
     [Column("ManpowerProjectTypeID")]
     public int ID { get; set; }

      [StringLength(50)]
      [Display(Name = "Project Type")]
      public string ProjTypeDesc { get; set; }
} 

Then my grid looks like:

@(Html.Kendo().Grid<ManpowerForecast.Web.ViewModels.ProjectTypeViewModel>()
.Name("gridProjectType")
.Columns(columns =>
{
   columns.Bound(c => c.ProjTypeDesc).Width(200);
   columns.Bound(c => c.ParentProjectType).ClientTemplate("#=ParentProjectType.ProjTypeDesc#")
          .Width(150);
})
.Editable(editable => editable.Mode(GridEditMode.InCell))
.HtmlAttributes(new { style = "height: 550px" })
.Refresh(true)
.DataSource(dataSource => dataSource
.Ajax()
.Batch(true)
.ServerOperation(false)
.Events(events => events.Error("error_handler"))
.Model(model =>
{

     model.Id(prop => prop.ID);
     model.Field(b => b.ParentProjectType).DefaultValue(ViewData["defaultProjectTypes"] as ProjectTypeComboViewModel);
})
.Create(create => create.Action("CreateManpowerProjectTypes", "Manpower"))
.Read(read => read.Action("ReadManpowerProjectTypes", "Manpower"))
.Update(edit => edit.Action("UpdateManpowerProjectTypes", "Manpower"))
.Destroy(delete => delete.Action("DestroyManpowerProjectTypes", "Manpower"))
.PageSize(20)
)
)

this displays just fine as long as ParentProjectType has a value but if it is null I get an error in the browser consul that reads: ProjTypeDesc is null.  If I comment out all the lines that have to do with the ParentProjectType the grid will display the data but off course doesn't contain the parent project type field.  How do I indicate in the grid that the data isn't required or is nullable?

I am trying to bind a grid in the editor template that contains List<> and have the ability to add and edit this list I need to do this in multiple places so Any idea would help a lot.

Model:

public int AgencyId { get; set; }
public string AgencyName { get; set; }
public int AgencyNumber { get; set; }
public string TIN { get; set; }
public bool Incorp { get; set; }
public string Affiliat { get; set; }
public IList<AgencyLocation> AgencyLocationCollection 

 Cshtml

<individual Field edits>

Need a grid here that will show all the associate locations and allow add and edit

  @(Html.Kendo().Grid<AgencyLocation>()
.Name("Grid")
.EnableCustomBinding(false)
.BindTo(Model.AgencyLocationCollection)
.Columns(columns =>
{
columns.Bound(m => m.AddressShortString);
columns.Bound(m => m.AgencyLocationId);
})
)

I'm using a Kendo UI Grid in conjunction with two AutoComplete widgets.  Everything mostly works perfectly, however, if a user pages through the grid and then does a search using one of the AutoComplete widgets, the grid does not display the data.  The pager at the bottom of the grid is updated but the grid is blank.  The user must click on a page before the data is displayed.  I have not been able to find a setting to resolve this despite hours of Googling.  Here's the code for my grid: 

I'm working through the Grid HtmlHelper extension example in the Telerik documentation. I get red squiggly line with 2 errors.Unknown method and unknown type. When i debug I get " CS0246: The type or namespace name 'KendoGridServerBinding' could not be found (are you missing a using directive or an assembly reference?)" I have the add namespace in web.config and the kendo.mvc is referenced in my project. I have attached the code and error.

I've downloaded and I'm running the kendoui-northwind-dashboard-master project.

In the OrdersController I've set a breakpoint on the Orders_Read Action.

I run the application in Debug and navigate to the Products & Orders page.

In Locals I drill down into orders/Results View and it returns 830 records.

I then set the Order Date filter to 'Is after 4/22/1998'.

In Locals I again drill down into orders/Results View and it still returns 830 records.

The view properly filters and returns 34 items.

1. Is Lazy Loading being used in this Grid?

2. If so how do I verify only the filtered records are returned from the DB query?

3. If Lazy loading is not being used in this project could you point me to or supply me with one that is?

I need to be able to build a project that scales properly so that I can return a subset of records rather than the thousands of records that will be in the database.

I've found a strange behaviour thats happening when i've got a grouped multi select list (again virtualised as asked in the other thread "Multi select change event not firing") and try to select an item.

The grouping function itself seems fine, as i can see the different items are under their respective headers, however when i try to select an item from the drop down list, a completely different item is selected instead of the selected item (most of the time it seems to be reversed, e.g. items 1, 2, 3, 4 showing on grouped list. Select item 1, and item 2 gets selected. Select item 2, item 1 gets selected. Sometimes the correct item is selected).

If there is no grouping applied, the selected value is always correct.