Hi there,

I've been searching and reading for 2 days now and I've some doubts about the TreeView that I need to clarify.

1. The tree will have three levels of deep

    + Contenedor "zst"
    |
    | --- Bulto 1. Largo: 2.6 Ancho: 3.6 Alto: 5.3
    |     |
    |     --- Producto: "Table"    Cantidad: 32
    |     --- Producto: "Computer" Cantidad: 25
    |
    | --- Bulto 2. Largo: 1.3 Ancho: 8.3 Alto: 2.2
    |     |
    |     --- Producto: "Mouse"    Cantidad: 8
    |     --- Producto: "Keyboard" Cantidad: 7
    |
    + Contenedor "trx"
      |
      |
      --- Bulto 1. Largo: 4.2 Ancho: 13.1 Alto: 15.7
          |
          --- Producto: "Display"    Cantidad: 7.7
          --- Producto: "Battery"    Cantidad: 2.3


What follows are questions that I don't have answers so far and I don't know whether it's possible to achieve using this widget

1. I need to apply a different template to every level: 
   a) In the first level (Contenedor) I need to show the word "Contenedor" plus a string specified by the user
   b) In the second level (Bulto) I need to show the word "Bulto" plus "Largo" followed by a number then the word "Ancho" followed by a number and the word "Alto" followed by a number
   c) In the third level (Producto) I need to show the word "Producto" plus a string then the word "Cantidad" followed by a number

2. In every level of the tree the user can edit the values:
   a) In the first level (Contenedor) the user can change the description (a string)
   b) In the second level (Bulto) the user can change the "Largo" (decimal), "Ancho" (decimal) and "Alto" (decimal)
   c) In the third level (Producto) the user can change "Cantidad" (decimal).

3. The TreeView must support drag & drop between it and a Grid widget so the user can drop the items from the tree in the grid and items from the grid in the Tree.

4. How do I get the model associated to a node in the Tree? If possible I would like to keep in the datasource the same members of the classes defined in the backend for each node in the Tree. I.e.

When I get the model of a node in the second level (Bulto) I would like to get this in the JavaScript object:

 

Instead of the TreeViewItem object.

 

Here's my model

 

Here's my view

 

Here's the template

 

 

However the way I use the template here is applied to all levels.

 

Can anyone please help me with this?

 

Thank you.

Currently I read the data needed for the ComboBox like:

            $(domNode).kendoComboBox({
                dataSource: {
                    transport: {
                        read: function(options) {
                            setReadOptions && setReadOptions(options);
                            const filters = that.getDataSourceData(options.data);
                            const serviceUrl = `${trackUrl.includes('?') ? trackUrl + '&' : trackUrl+'?'}${that.encodeData(filters)}`;
                            ajax.get<any>(serviceUrl)
                                .then((returnObj) => {
                                    let comboBoxOptions = returnObj;
                                    if (filterOptions) {
                                        comboBoxOptions = filterOptions(returnObj);
                                    }
                                    options.success(comboBoxOptions);
                                }).fail(() => {
                                    options.error("Could not retrive data for selected document Id.");
                                })
                        },
                        prefix: ''
                    },
. . . . .

Now there is the possibility of the url that is used could change. Based on that changed url I would like to set new options with a call to something like  I do for when the ajax method returns

                                    if (filterOptions) {
                                        comboBoxOptions = filterOptions(returnObj);
                                    }
                                    options.success(comboBoxOptions);

I know I can refresh the comboBox with something like

                this.comboBox.dataSource.read()

But I don't know how to also affect the options for the comboBox?

 

Kevin

How do I remove rows? Currently I do something like:

                    e.workbook.sheets.forEach(function (sheet) {
                        sheet.rows = sheet.rows.filter(r => r.type != "group-header");
                    });
                    e.sender.saveAsExcel();

But it seems that the saveAsExcel() function is ignoring the rows that I have filtered out?

     I've got a bunch of methods client-side that build up a list of all the filters to apply to a grid. However, I'm told it is possible to pass this list over to the server in order to have better control over the filters? In my case, I am trying to create a filter that looks like this:

`(cond || cond || cond) && cond`

I've noticed that Kendo seems to only support cases where it is `cond || cond` or `cond && cond`. Unless there is a way to make the above condition work, how can I pass my filters to the server and the `DataSourceRequest` in order to have that further control?

Hi,

I am new to using KendoUI and am sorry if this has been answered before but I cannot seem to find an answer that works for me. I have a search button and a grid on the page. I am taking to d.3 in the backend (a DMS system) using library calls. The user enters s/he search query in the field and I call the Read method in my Controller to get the data from d.3. What is happening is that I am getting the data back in the request but the grid is not updating.

Here is my MVC code:

@(Html.Kendo()
    .Grid(Model)
    .Name("grid")
    .DataSource(dataSource => dataSource
        .Ajax()
        .ServerOperation(false)
        .Read(r => r.Action("Read", "Search"))
    )
    .Filterable(f => f.Mode(GridFilterMode.Row))
    .Columns(columns =>
    {
    {
        columns.Bound(c => c.DocumentType)
            .Filterable(false)
            .Width("150px")
            .Title(@Localizer["SearchTableHeaderDocumentType"]);

        columns.Bound(c => c.DocumentTypeLong)
            .Filterable(true)
            .Title(@Localizer["SearchTableHeaderDocumentTitle"])
            .Filterable(ftb => ftb.Cell(cell => cell.Operator("contains").SuggestionOperator(FilterType.Contains)));

    })
    )

I have a button on the page that does the submit using the following code:

   var search = $("#search-field").val();
    if (!search) return;
    if (search.trim() === "") return;
    var dataSource = $("#grid").data("kendoGrid").dataSource;
    var parameters = {
        searchFor: search
    }

    // call the search passing the parameters -> searchFor is the parameter name on the SearchController/Read method
    dataSource.read(parameters);

 

This calls my Read method in the SearchController.cs. The Search method creates the data that is supposed to be passed back to the Grid: 

 

            // setup your result for KendoUI
            DataSourceResult result = model.Entries.ToDataSourceResult(request);

            // return
            return Json(result);

I also see the data structure in the response if I check the event after the RequestEnd:

            .Events(events => events.RequestEnd("onRequestEnd"))

or if I check the response in Chrome - this is what I get:

+0Object {DocumentId: "GD00000016", DocumentType: "D3CHG", DocumentTypeLong: "D.3 :: Fehler/Request", …}Object
+1Object {DocumentId: "GD00000148", DocumentType: "DEPSU", DocumentTypeLong: "Abteilung :: Leitung", …}Object
+2Object {DocumentId: "GD00000149", DocumentType: "DEPSU", DocumentTypeLong: "Abteilung :: Leitung", …}Object
+3Object {DocumentId: "GD00000150", DocumentType: "DEPSU", DocumentTypeLong: "Abteilung :: Leitung", …}Object
+4Object {DocumentId: "GD00000266", DocumentType: "IDOCU", DocumentTypeLong: "Infrastruktur :: Handbuch", …}Object
+5Object {DocumentId: "GD00000267", DocumentType: "IDOCU", DocumentTypeLong: "Infrastruktur :: Handbuch", …}Object
+6Object {DocumentId: "GD00000268", DocumentType: "IDOCU", DocumentTypeLong: "Infrastruktur :: Handbuch", …}Object
+7Object {DocumentId: "GD00000269", DocumentType: "CKNOW", DocumentTypeLong: "Global :: Wissen", …}Object
+8Object {DocumentId: "GD00000277", DocumentType: "IDOCU", DocumentTypeLong: "Infrastruktur :: Handbuch", …}Object

 

very odd. 

 

Maybe this helps: If I return dummy data from the Index method (I am currently returning an empty list  => return View(new List<SearchEntryModel>());) before using the Read method from the grid everything magically works (except that the number of entries is limited to the return from the Index method). 

 

Sorry about the weird explanation but I don't know how to better explain it. 

 

Thank you in advance

Martin

 

 

Kendo grid inline edit mode resulting an editable row with narrow controls which don't have any kendo styles. Please let me know the possible solution  to resolve this.

Hi,

I have an application that is strictly used in the central time zone.  Our web server is on pacific time zone.  Data is passed to the web server from the central time zone and I want to display it this way.  Every non-kendo control shows the time as is.  The kendo grid is showing the date with an adjustment of +2 hours so it appears there is a conversion - which I do not want.

My column format is as follows:

Is it possible to tell the grid to show the date/time "as is"?

Thanks,
David A.

I have been searching for an hour or so to find the code used in the Chart API demo and I could not find it in the github for the rest of the demos.  I am wondering where that code is located.

Having grid with 2 foreign key columns. Grid shows them as is should - value from foreign column (matched by ID)

But in edit mode I have Integer field instead of drop down in one of them.

Models and EditTemplate absolutely identical (as I see)
Problem is in Teachers

Here is models

   [DisplayName("Level")]
        [UIHint("Level")]
        public int LevelId
        {
            get;
            set;
        }

        [DisplayName("Teacher")]
        [UIHint("Teacher")]
        public int TeacherId
        {
            get;
            set;
        }

here is Level.cshtml
@model object
           
@(
 Html.Kendo().DropDownListFor(m => m)
                        .BindTo((System.Collections.IEnumerable)ViewData["levels"]).DataTextField("Title").DataValueField("Id")
)


here Teacher.cshtml
@model object
           
@(
 Html.Kendo().DropDownListFor(m => m)
                            .BindTo((System.Collections.IEnumerable)ViewData["teachers"]).DataTextField("Name").DataValueField("TeacherId")
)

also
ViewData["teachers"]) populated as
  var dataContext = new EntitiesModel();
            var items = dataContext.Peoples
                        .Select(c => new TeachersViewModel
                        {
                            TeacherId = c.HumanId,
                            Name = c.nme + " " + c.Surname,
                            OccupationId = c.OccupationId
                        }).Where(p => p.OccupationId == 2)
                        .OrderBy(e => e.Name);
            ViewData["teachers"] = items;
            ViewData["defaulteacher"] = items.First();

Still do`nt get why one of column don want to be dropdown

Hi

I have based the following code on Grid / Custom command
https://demos.telerik.com/aspnet-mvc/grid/custom-command

When I run the code I get the following error in the Developer Console(Edge & Chrome)
Uncaught ReferenceError: EditDetails is not defined

I have been unable to find the problem, any suggestions?

Is there a way that i can call a controller method without going through javascript?

 

Thanks