Questions on UI for ASP.NET MVC Forum

1 answer

476 views

Hi
I am trying to load a treeview using an Ajax call but with the load on demand set to false, I am looking to return the hierarchy to the client in a single call. The basic layout of the treeview is simple

@(Html.Kendo().TreeView()
                          .Name("AvailablePortfolios")
                        .DataSource(dataSource => dataSource.Read("GetSelectedClientPortfolios", "PortfolioGroup"))
                        .LoadOnDemand(false))

and the json returned from the client is

[{"id":10014853,"text":"Ali, Mr Jake","items":[{"id":35443,"text":"Individual Investment Account (IMF0BGNX D)","hasChildren":false},{"id":35444,"text":"ISA (IMF0BGNXSHD)","hasChildren":false}],"hasChildren":true}]

When I use this setup I find that the client is making roughly 20 - 30 requests to the server with the following request

GET /Platform/Tools/PortfolioGroup/GetSelectedClientPortfolios?id=10014853 HTTP/1.1

The Treeview then displays the first level correctly but whenever I attempt to expand out the tree I get the first node repeated.

Is there something wrong with the way my json is constructed or is there some other step I have missed. Are there any examples of an Ajax request with load on demand set to false.

Thanks

Colin

TreeView

answered on 14 May 2013

2 answers

320 views

Client-Side Sorting with a View bound directly to the Model

New to Kendo & MVC, so please bear with me.
I have a view that contains a grid that is working almost perfectly for me. My model is a System.Data.DataTable which is generated by a service, and is entirely dynamic (in that I don't know the schema until runtime). I'm injecting the model directly into the View, which uses the DataColumn definitions in the DataTable to generate the presentation layer (GridColumnSettings):

@using System.Data

@using System.Linq

@using Kendo.Mvc.UI

@model System.Data.DataTable

@(Html.Kendo()

.Grid(Model)

.Name("View")

.Columns(columns => columns.LoadSettings(

Model.Columns.Cast<DataColumn>().Select(dc => new GridColumnSettings {

Member = dc.ColumnName,

Title = dc.Caption,

MemberType = dc.DataType,

Format = "{0:" + dc.ExtendedProperties["format"] + "}",

Width = "100px"

})))

.Sortable()

.Scrollable()

)

I'm quite happy with this approach - it's simple and elegant and keeps the Model (arguably ViewModel) and Controller blissfully ignorant of any Kendo/UI concepts. The only problem with this is that sorting always calls back into the Controller, and the DataTable is regenerated, even though it will not have changed.

I've seen in some Ajax samples the use of a 'serverSorting' property on a 'dataSource' instance, and I think I need to set that to false in order to get what I want, but I can't see how that applies in my MVC scenario. I don't want to set up a DataSource() that makes an Ajax() call that then Read()s the returned Json, because I have all the data already, but I'm struggling to see how else would I get access to the DataSource.ServerSorting property.

What am I missing?

Grid

answered on 13 May 2013

3 answers

164 views

ColumnMenu Undefined Columns

Hi,
I'm using ASP.NET MVC Wrapper for KendoUI in my project.
I saw Grid ColumnMenu and I want to use it and it works everything but the menu lists 3 undefined columns. My grid has 3 columns without model binding and with empty title but I set this

.IncludeInMenu(false)

but nothing changes. So I've tried to comment those columns but nothing changes again.
How can I solve this problem?

Thanks,
Matteo.

Grid

answered on 13 May 2013

0 answers

137 views

obtaining value from Numeric TextBox not working

Hello!
ex: I have field in Model
I use this:

<tr

<td>

@Html.LabelFor(model => model.ThicknessDry)

</td>

<td>

@Html.EditorFor(model => model.ThicknessDry

</td>

</tr

.HtmlAttributes(new { id = Guid.NewGuid().ToString() })

but I can't call to my ThicknessDry (thicknessDry.png), because I use new Id ( this need to me)
P.S. I can't delete this code: .HtmlAttributes(new { id = Guid.NewGuid().ToString() }) ( in EditorTemplates)

....later
This code help me!

$("input[name=ThicknessDry]").val();

NumericTextBox

asked on 11 May 2013

12 answers

331 views

Kendo UI with WebAPI and MVC Wrapper

<section id="maincontent">

<div class="container">

@(Html.Kendo().Grid<Person>()

.Name("Grid")

.Columns(columns =>

{

columns.Bound(s => s.PersonID);

columns.Bound(s => s.FirstName);

columns.Bound(s => s.Surname);

columns.Bound(s => s.IsEmployed);

columns.Command(c =>

{

c.Edit();

c.Destroy();

});

})

.ToolBar(tools =>

{

tools.Create();

})

.Sortable()

.Pageable()

.Filterable()

.DataSource(dataSource => dataSource

.Ajax()

.Model(model =>

{

model.Id(s => s.PersonID);

})

.Read(read => read.Url("api/Person").Type(HttpVerbs.Get))

.Create(create => create.Url("api/Person").Type(HttpVerbs.Post))

.Update(update => update.Url("api/Person").Type(HttpVerbs.Put))

.Destroy(destroy => destroy.Url("api/Person").Type(HttpVerbs.Delete))

)

</div>

</section>

<script>

$(function() {

var grid = $("#Grid").data("kendoGrid");

// WebAPI needs the ID of the entity to be part of the URL e.g. PUT /api/Person/PutPerson/80

grid.dataSource.transport.options.update.url = function(data) {

return "api/Person/PutPerson/" + data.personID;

};

// WebAPI needs the ID of the entity to be part of the URL e.g. DELETE /api/Person/DeletePerson/80

grid.dataSource.transport.options.destroy.url = function(data) {

return "api/Person/DeletePerson/" + data.personID;

};

});

</script>

Hi,
I'm trying to accomplish following Task as this example shows :

Binding to a Web ApiController
http://www.kendoui.com/code-library/mvc/grid/binding-to-a-web-apicontroller.aspx

The problem is that without giving any error the DataGrid simply doesn't show/Bind the data. When checking the Traffic and the data which is retrieved everything looks fine.

Any ideas?
thanks in advance

, here the return json data:

....

[{"personID":"3123","firstName":"231","surname":"312321","isEmployed":null},{"personID":"999","firstName":"The","surname":"Best Employee","isEmployed":"Master"},{"personID":"P001","firstName":"XXX","surname":"XXX","isEmployed":null},{"personID":"P002","firstName":"XXX","surname":"XXX","isEmployed":null},{"personID":"P003","firstName":"XXX","surname":"XXX","isEmployed":null},{"personID":"P004","firstName":"XXX","surname":"XXX","isEmployed":null},{"personID":"P005","firstName":"XXX","surname":"XXX","isEmployed":null},{"personID":"P006","firstName":"XXX","surname":"XXX","isEmployed":null},{"personID":"P007","firstName":"XXX","surname":"XXX","isEmployed":null},{"personID":"P008","firstName":"XXX","surname":"XXX","isEmployed":null}]

....

and here my View:

and here my ApiController:

namespace KiScope.RemoteClient.WebAPI.Controllers.Apis

{

// Specify on Controller level that the user has to authorize before he can start

// The actual implementation of the Redirect to Login functionality has to be done on the client side

// here is a video explaining this: http://www.asp.net/web-api/videos/getting-started/authorization

//[Authorize]

public class PersonController : ApiController

{

// Remember that the UOW disposes itself after usage, so no need to handle this manually

private readonly IRemoteClientUoW uow;

// Ninject Initialization

public PersonController(IRemoteClientUoW _uow)

{

uow = _uow;

}

public DataSourceResult GetPeople([ModelBinder(typeof(ModelBinders.DataSourceRequestModelBinder))] DataSourceRequest request)

{

var seaman = uow.Person.GetAll();

return seaman.ToDataSourceResult(request,s => new

{

s.PersonID,

s.FirstName,

s.Surname,

s.IsEmployed

}

);

}

// ... MORE CODE

General Discussions

answered on 10 May 2013

2 answers

113 views

templates

i keep see in code examples, a template like this
columns.Template(t => { }).HeaderTemplate("").ClientTemplate(@"
< a href='javascript: void(0)' class='abutton edit' onclick='editRow(this)' title='button edit'>button edit</a>
< a href='javascript: void(0)' class='abutton delete' onclick='deleteRow(this)' title='button delete'>button delete</a>")

if i have to give other parameters to that editRow javascript function or multiple,for example a string something like editRow(this,2,'text',g) can i do it ? and how do i format this in that template context?
from the above example some parameters are given by value,some by reference.

and if i write "this" ,always it is interpreted as the sender of that event?it's very insteresting,i write something as a text and it is interpreted as a valid value,in this case a reference.

Regards,
Daniel

Grid

answered on 10 May 2013

2 answers

165 views

Selected row date column not displaying long date format

Hi I have a column in my grid that is a DateTime field with long format date e.g. Friday, May 10, 2013

This is how it is defined in the ViewModel

[Required]

[DataType(DataType.Date)]

[DisplayFormat(DataFormatString = "{0:D}")]

[Display(Name = "Visit Date")]

public DateTime VisitDate { get; set; }

The column is displayed correctly with what I want e.g. Friday, May 10, 2013 but when I get the selected row data for that column it is coming back with the following:

[17:39:18.580] VisitDate: Fri May 10 2013 00:00:00 GMT-0400 (Eastern Daylight Time)

Here is the code on the view to get the selected row.

function deleteRow() {

var grid = $('#scheduleGrid').data('kendoGrid');

var rows = grid.select();

if (rows.length > 0) {

var dataItem = grid.dataItem(rows);

console.log("VisitDate: " + dataItem.VisitDate);

}

How do I change it to get the long format date that is displayed in the grid? Any help greatly appreciated.

Grid

answered on 10 May 2013

1 answer

39 views

Editor not posting back in IE10

I have just returned to using Kendo and put a simple editor on an MVC view. Works fine in Firefox and in IE 10 with compatibility view turned on. With compatibility view turned off the post data for that field is empty.

Is there a specific setting or version that would affect this ?

-Robert

Editor

answered on 10 May 2013

1 answer

126 views

Wrong Data displayed after Insert

Hello dear KendoUI Team!
I've got the following problem:
In one grid, after I insert e new row and click update, the grid does not show the new row. Instead it shows the former first row twice.
After a refresh the new row is shown, so the data is entered correctly on server side.
The grid is ajax bound and inside a tabstrip.
Any Ideas what is going wrong?

brgds
Malcolm Howlett

Grid

answered on 10 May 2013

2 answers

346 views

Aggregate function within Kendo grid header template

Hi Team
I have a column as shown in the attached excel. I am not finding a way to find the aggregates of the columns 'Fixed' and 'Variable' as mentioned in the excel. Could you please provide with suitable inputs.

-Nikhila

Grid

answered on 10 May 2013