Since I've tryed to write on kendoui forum but the answer I've got was "buy a license" for report a bug, I'm asking if someone has faced the same problem using kendoGrid 2013.1.319. Since I'm using it in a "sundays test application" there's no hurry at all!
My original message was on kendo forum was:
Hi there,
I've been updated kendo grid with the latest version and all of a sudden my application is facing problems on data operations. The problem seems to be located client side, because I'm correctly receiving requests for GET, PUT, POST and DELETE verbs but the grid does not update its status.
I'm using ASP.NET MVC 4 OData implementation through an API service.
For example: if I delete 2 rows and press save, the DELETE calls are made, the client grid hides the rows but if I press save again, the delete is called on and on.
The same problem is on update / create, the cell remains with the red corner and, after saving, again the data are still submitted as it was the first time.
I've noticed that when I receiving the callback on dataSource:
requestEnd: function (e) {
if (e.type === "update" || e.type === "create") {
// Refresh data after changes
this.read();
}
}
e.type is always undefined when inserting or updating records.
This is my dataSource configuration:
dataSource: {
type: 'odata', // <-- Include OData style params on query string
transport: {
read: {
url: $("#contactsGrid").attr("data-api-crud"),
dataType: "json", // <-- The default is "jsonp".
type: "GET"
},
update: {
url: $("#contactsGrid").attr("data-api-crud"),
dataType: "json", // <-- The default is "jsonp".
type: "POST"
},
create: {
url: $("#contactsGrid").attr("data-api-crud"),
dataType: "json", // <-- The default is "jsonp".
type: "PUT"
},
destroy: {
url: function (data) {
return $("#contactsGrid").attr("data-api-crud") + "/" + data.Id;
},
dataType: "json", // <-- The default is "jsonp".
type: "DELETE"
},
parameterMap: kendo.data.transports.odata.parameterMap
},
schema: {
// The array of repeating data elements (items)
data: "Results",
// The total count of records in the whole dataset. used for paging.
total: "Count",
model: {
id: "Id",
fields: {
Dealer: { type: "string", editable: true },
Address: { type: "string", editable: true }
}
}
},
pageSize: 50,
serverPaging: true,
serverFiltering: true,
serverSorting: true,
requestEnd: function (e) {
if (e.type === "update" || e.type === "create") {
// Refresh data after changes
this.read();
}
}
}
the Kendo UI team have just published a blogpost how to use the library with JayData to simplify the configuration of datasources. Hopefully it will help you.
Related
I am using a Kendo dropdownlist to display data made from a remote service call.
First, here is the definition in the HTML template:
<select
kendo-drop-down-list
k-options="dropdownOptions"
k-ng-delay="dropdownOptions">
</select>
Next, here is the code to populate the dropdown from an AngularJS controller:
var myUrl = '(url of REST service)';
$scope.dropdownOptions = {
dataSource: {
transport: {
read: {
url: myUrl,
dataType: 'json',
type: 'POST',
contentType: "application/json;charset=ISO-8859-1"
},
parameterMap: function (data, type) {
const req = {
"PARAMS": $scope.params
};
return JSON.stringify(req);
}
}
},
dataTextField: 'DESCRIPTION',
dataValueField: 'VALUE',
schema: {
type: "json",
data: "resultData",
model: {
id: "VALUE",
fields: {
"VALUE":{field: "VALUE", type: "string"},
"DESCRIPTION":{field: "DESCRIPTION", type: "string"}
}
}
}
};
(Note: the REST service requires data to be provided as a JSON object via POST, hence the type and parameterMap).
I have confirmed that the data to populate the dropdown is being returned from the REST service as an array under the key "resultData":
{
"resultData":[{"DESCRIPTION":"Whatever","VALUE":"VALUE1"},...]
}
Can anyone help me?
Update
I am also seeing "e.slice is not a function" in my dev console.
Edit
Added id field to model, no effect.
The problem was that schema should have been a child of dataSource. Once I fixed that, the data began to display.
I'm trying to understand how Kendo UI grid works. This the example for the Kendo website.
Somewhere one can find this configuration lines:
pageSize: 20,
serverPaging: true,
serverFiltering: true,
serverSorting: true
And this is the line that fetch the data
transport: {
read: "http://demos.telerik.com/kendo- ui/service/Northwind.svc/Orders"
},
I wonder whether the above parameters are being sent to the server, i.e. a server side method should like this?
public list<type> MyServerSideMethod(inr pageSize, bool serverPaging,
bool serverFiltering, boll serverSorting)
{
}
In fact, I've applied the configuration, but the pager on my grid is still not working. That why I'm wondering whether the method in the server is expecting those values.
Thank for helping
Define your read as a function and manipulate the parameters send to server
transport: {
read: function (options) {
console.log(JSON.stringify(options)); // You can see what parameters send : check your console on paging
var commandOBJ=[{
Page: 1, // Once the first 20 item is loaded and you click for the next page you will have the page in "options" (should be like options.page)
PageSize:20
}];
$.ajax({
url:"http://demos.telerik.com/kendo- ui/service/Northwind.svc/Orders",
data: { }, // send your page info here
dataType: "json", // your data return type
cache: false,
success: function (result) {
options.success(result);
},
error: function (result) {
options.error(result);
}
});
}
}
I've setup a basic Kendo Grid and I'm using the DataSourceResult class from the PHP Wrapper library on the sever side.
I've come across a strange issue... if I create a new record and then edit it (without refreshing the page), the create operation is called again, rather than the update operation.
If the page is refreshed after adding the new record, the update operation is called correctly after making changes to the record.
I can confirm that the DataSourceResult class is returning the correct data after the create operation, including the id of the new record.
Any ideas why this is happening (and how to stop it)?
Thanks
Update: Here's the datasource code. The query string in the url is just to easily distinguish the requests in Chrome's console. The additional data passed with each request is used by ajax.php to distinguish the different actions requested.
data = new kendo.data.DataSource({
transport: {
create: {
url: '/ajax.php?r=gridCreate',
dataType: 'json',
type: 'post',
data: { request: 'grid', type: 'create' }
},
read: {
url: '/ajax.php?request=gridRead',
dataType: 'json',
type: 'post',
data: { request: 'grid', type: 'read' }
},
update: {
url: '/ajax.php?r=gridUpdate',
dataType: 'json',
type: 'post',
data: { request: 'grid', type: 'update' }
},
destroy: {
url: '/ajax.php?r=gridDestroy',
dataType: 'json',
type: 'post',
data: { request: 'grid', type: 'destroy' }
},
parameterMap: function(data, operation) {
if (operation != "read"){
data.expires = moment(data.expires).format('YYYY-MM-DD HH:mm');
}
return data;
}
},
schema: {
data: 'data',
total: 'total',
model: {
id: 'id',
fields: {
id: { editable: false, nullable: true },
code: { type: 'string' },
expires: { type: 'date' },
enabled: { type: 'boolean', defaultValue: true }
}
}
},
pageSize: 30,
serverPaging: true,
serverSorting: true,
serverFiltering: true
});
Best solution
Set to update, create or delete different Call Action
From Telerik Support :
I already replied to your question in the support thread that you
submitted on the same subject. For convenience I will paste my reply
on the forum as well.
This problem occurs because your model does not have an ID. The model
ID is essential for editing functionality and should not be ommited -
each dataSource records should have unique ID, records with empty ID
field are considered as new and are submitted through the "create"
transport.
schema: {
model: {
//id? model must have an unique ID field
fields: {
FirstName: { editable: false},
DOB: { type: "date"},
Created: {type: "date" },
Updated: {type: "date" },
}
} },
For more information on the subject, please check the following
resources:
http://docs.kendoui.com/api/framework/model#methods-Model.define
http://www.kendoui.com/forums/ui/grid/request-for-support-on-editable-grid.aspx#228oGIheFkGD4v0SkV8Fzw
MasterLink
I hope this information will help
I have also the same problem & I have tried this & it will work.
.Events(events => events.RequestEnd("onRequestEnd"))
And in this function use belowe:
function onRequestEnd(e) {
var tmp = e.type;
if (tmp == "create") {
//RequestEnd event handler code
alert("Created succesully");
var dataSource = this;
dataSource.read();
}
else if (tmp == "update") {
alert("Updated succesully");
}
}
Try to Use this code in onRequestEnd event of grid
var dataSource = this;
dataSource.read();
Hope that it will help you.
Pass the auto-incremented id of the table when you call the get_data() method to display data into kendo grid, so that when you click on the delete button then Deledata() will call definitely.
Another variation, in my case, I had specified a defaultValue on my key field:
schema: $.extend(true, {}, kendo.data.transports["aspnetmvc-ajax"], {
data: "Data",
total: "Total",
errors: "Errors",
model: kendo.data.Model.define({
id: "AchScheduleID",
fields: {
AchScheduleID: { type: "number", editable: true, defaultValue: 2 },
LineOfBusinessID: { type: "number", editable: true },
Not sure what I was thinking but it caused the same symptom.
I am having a small issue that I just can't seem to figure out. I am trying to make a simple SharePoint 2013 demo app that gets a few fields from a list on the parent site and binds to a kendo grid.
Due to the new nature of SP2013, app's get created in their own local site which makes these calls cross domain. When I make the call, no data is pulled back. When I compare a working call vs the call being made by the app, I can see that a cookie is not present in the call that is failing (which is why no data is being pulled back). If anyone could offer any hints or suggestions on things to try, I would appreciate it.
The List I am trying to call is called KendoGridList and I am trying to pull back the first and last name and bind to the grid. Below is my code:
EDIT: After looking into the code a little deeper, it looks like a cookie is not getting passed in the call to the service. If I take the cookie from a normal rest call to the service which works and add it to the composer in fiddler the call goes through and returns data.
$(document).ready(function () {
$("#grid").empty();
var siteUrl = "site url placed here";
var url = siteUrl + "/_vti_bin/Listdata.svc/KendoGridList/?$select=FirstName,LastName";
grid = $("#grid").kendoGrid({
dataSource: {
type: "odata",
transport: {
read: {
url: url,
dataType: "json",
beforeSend: function (xhr) {
xhr.setRequestHeader("Accept", "application/json;odata=verbose");
}
}
},
schema: {
type: "json",
model: {
fields: {
FirstName: "FirstName",
LastName: "LastName"
}
}
},
pageSize: 10,
serverPaging: true,
serverFiltering: true,
serverSorting: true,
change: function (e) { // data load completed for grid
},
},
filterable: false,
sortable: true,
pageable: true,
scrollable: false,
//groupable: true,
columns: [{
field: "FirstName",
title: "First Name",
width: 50
}, {
field: "LastName",
title: "Last Name",
width: 50
}
]
});
});
I've also tried using:
read: {
url: url,
type: "GET",
dataType: "json",
contentType: "application/json;odata=verbose",
headers: {
"accept": "application/json;odata=verbose"
}
},
If you are using a provider-hosted app you should try using the SP cross-domain library. I think your best bet is to retrieve the data using the library and then bind the resulting info to the grid.
http://blogs.msdn.com/b/officeapps/archive/2012/11/29/solving-cross-domain-problems-in-apps-for-sharepoint.aspx
i have developed a web application using kendo ui tools and theres a kendo grid with batch edit mode..
but when i press the delete button for any record in kendo grid it will erase from the list in grid but actually not in the data source.when i reload the page or grid the deleted item will still exist..
here is the code of my grid
<div id="grid">
</div>
<script type="text/javascript">
$("#submitMarketUser").click(function () {
var grid = $("#grid").data("kendoGrid");
var dataSource = new kendo.data.DataSource({
transport: {
read: {
url: "WholeSaleTrade/GetTradeProductDetail",
dataType: "json",
data: {
test: $("#Names").val()
}
},
destroy: {
url: "WholeSaleTrade/DeletePro",
type: "POST",
dataType: "jsonp",
data: {
DAKy: $("#Names").val(),
DIKy: $("#btntxt").val()
}
},
create: {
url: "WholeSaleTrade/CreateProduct",
type: "POST",
dataType: "jsonp",
data: {
AKy: $("#Names").val(),
IKy: $("#btntxt").val()
}
}
},
pageSize: 5,
schema: {
model: {
id: "ProductKey",
fields: {
ProductKey: { editable: false, nullable: true },
ProductName: { validation: { required: true} }
}
}
}
});
$("#grid").kendoGrid({
dataSource: dataSource,
editable: true,
toolbar: ["create", "save"],
autobind: true,
pageable: true,
columns: [
{ field: "ProductName", title: "Product Name",
editor: function (container, options) {
var model = options.model;
$('<input id="btntxt" name="' + options.field + '"/>').appendTo(container).kendoComboBox({
dataSource: {
type: "POST",
transport: {
read: {
url: "MarketInformation/PopulateProducts",
success: function (data) {
var prod = data[0];
model.set("ProductName", prod.ItmNm);
model.set("ItmKy", prod.ItmKy);
model.set("UserKey", $("#Names").val());
}
}
}
},
dataValueField: "ItmKy",
dataTextField: "ItmNm"
});
}
},
{ command: ["destroy"], title: " " }
]
});
});
</script>
can not identify that where is the fault going and can somebody please help me to solve this matter.
There are three common reasons delete won't work:
1. Not setting editable of grid to inline or popup. The deleted items will be automatically processed through transport destroy only for "inline"/"popup" edit modes. Ex:
editable: {
mode: "inline",
}
//or
editable: "inline"
2. If on your datasource, you have the batch flag set to true, this means the datasource will make the call only after you tell it to, e.g calling sync(). Ex:
var dataSource = new kendo.data.DataSource({
batch: true,
//.....
});
//... in some where e.g in a save button click event call the following line:
dataSource.sync();
3. You should define id to your primary key of database field name inside model of datasource. Ex:
model: {
id: "ProductID",
fields: {
ProductID: { editable: false, nullable: true },
}
}
So the problem with your code is first one, i.e you did not set editable to inline or popup
If you choose not to include editable.mode in order to utilize the in-cell editing, you can set the toolbar of the grid to include the option save:
$("#grid").kendoGrid({
dataSource: {
transport: {
....
},
schema: {
....
}
},
toolbar: ["create", "save", "cancel"],
columns: [
....
],
editable: true
});
This will create a save button at the toolbar of the grid. After deleting any records by clicking the destroy command button, click on the save button to have the grid to make an Ajax call to the server to delete the record.
If you would rather delete the record automatically without including the save button, you could add a change event handler to the datasource of the grid:
$("#grid").kendoGrid({
dataSource: {
transport: {
....
},
schema: {
....
},
change: function(e) {
if (e.action === "remove") {
this.sync();
}
}
},
columns: [
....
],
editable: true
});
This will automatically sync the changes you made to the grid with the server when there's a data change.
Hmm try not including type: "POST", and see if it now works since as far as I can see that bit isn't included on the demo's and I don't think I included it when I last did inline edits/deletes.
I had put an arbitray name for an int on the server Delete Method.
[HttpPost]
public ActionResult DeleteRandomTest(Int32 randomTestId)
{
...
}
The default modelbinder was probably looking for a property called Id (same as the primary key of my type according to the configuration of the model).
.Model(config => config.Id(p => p.Id))
In fact, I proved this by changing the signature to the following:
[HttpPost]
public ActionResult DeleteRandomTest(Int32 Id)
{
...
}
My break point was hit after that.
Ultimately, I used the full type as the parameter as shown in the Kendo examples because I didn't want to have poorly named parameter names (not camel case) in the action. Shown as follows:
[HttpPost]
public ActionResult DeleteRandomTest([DataSourceRequest]
DataSourceRequest request, RandomDrugTest randomDrugTest)
{
...
}
This seems to the be the reason it wasn't working.
I had the same issue. My issue was caused by having a data property in the kendo model. Example:
{id: 1, data: ""}