For some reason I need to define a hidden column when using KendoUI grid:
var fields = {
ID: { type: "string", editable: true, nullable: false },
HideID : { type: "string", editable: false, nullable: false ,hidden: true },
Name: { type: "string", editable: true, nullable: false }
};
var ColumnsDefine = [
{ field: "ID", title: "ID", width: 100 },
{ field: "HideID", hidden: true },
{ field: "Name", title: "Name", width: 100 }
];
I change the HideID column value using JavaScript (operate the dataItem) without editing the grid's record.
And the JavaScript code to change the hidden field is like below (it's inside a command-click function)
var tr = $(e.target).closest("tr");
var data = this.dataItem(tr);
data.HideID = "123";
Now the problem is when I click the default update button, the background update method is not being called because I didn't make changes to any visible column. But if I modify any visible columns and click update, both the HideID and another field will be updated successfully in the background.
What should I do to notify the KendoUI grid that its data has been changed and fire the update method by clicking the update button?
Your grid dataItem will be a kendo.data.ObservableObject; you need to set your HideID property in such a way that the kendo framework sees the change, using it's set() method:
var tr = $(e.target).closest("tr");
var data = this.dataItem(tr);
data.set("HideID","123");
Once you've done that, you should find that it's dirty field is set to true. That signals to the datasource that this object has changes which need to be saved via the update method.
See also this article which gives a good explanation of how the observableObject can be used for binding https://docs.telerik.com/kendo-ui/framework/mvvm/observableobject#set-field-values
Hope this helps!
If i begin correcting my error cells or update a new cell, cell highlights disappear.The issue exists even if I scroll vertically.Attached screenshot
You need to apply to each cell you want to validate this validator :
requiredFieldValidator = function (value, callback) {
if (!value) {
//addErrorDiv(myMessageDiv, myErrorMessages.required_field);
callback(false);
} else {
callback(true);
}
};
Like this :
columns: [
{data: 'firstName', validator: 'requiredFieldValidator'},
{data: 'lastName', validator: 'requiredFieldValidator'},
]
Example : JSFiddle
I am trying to add a hidden field for the user registration. The problem is not with the field itself but with its value. I want to parse it a default value. This is my code:
Accounts.ui.config({
requestPermissions: {},
extraSignupFields: [{
fieldName: 'name',
fieldLabel: 'Name',
inputType: 'text',
visible: true,
validate: function(value, errorFunction) {
if (!value) {
errorFunction("Please write your first name");
return false;
} else {
return true;
}
}
},{
fieldName: 'status',
fieldLabel: 'Status',
inputType: 'text',
value: 'somevalue',
visible: false,
}]
});
I want to add the value to the field 'status'.
Actually, I found the answer. The option is the following code in the
server folder:
Accounts.onCreateUser(function(options, user) {
if (options.profile) {
user.profile = options.profile;
}
user.profile.status = "sth";
return user;
});
Looking at the implementation of signup in that package, there is no way to set a default value. The code just creates an object in signup() and grabs whatever existing values from the form that it can.
I have kendo-ui grid, with some fields.
I need one of the fields to be editable on add new row, and not editable on update row.
I try to change data-source definitions before add row, and change it back before update.
But the changing doesn't help.
Is there any way to do it?
Here is what I tried to do:
var schema = {
data: 'results',
model: {
id: 'GroupCode',
fields: {
GCode: { editable: false },
GroupPrincipalId: { editable: false },
GroupPrincipalName: { editable: false },
ChildCount: { editable: true },
}
}
};
onAddClick: function(){
var gridElement = ('#myGrid').data('kendoGrid');
gridElement.dataSource.options.schema.model.fields.GroupPrincipalId.editable = true;
gridElement.dataSource.options.schema.model.fields.GroupPrincipalName.editable = true;
gridElement.addRow();
}
(onAddClick is called by my custom adding-button, not related to kendo-adding-logic);
You can use the approach described here:
http://www.telerik.com/forums/making-column-as-readonly-on-update-and-editable-on-insert-in-grid
When create button is pressed you mark a variable as isCreating and in the edit section you check it and if is false you disable the requiered field/fields.
i have a kendoui grid which list claims. one of the columns is lenders which is a foreign key reference to the lenders table. what i want is to be able to display the lender name in the grid instead of its id reference.
ive setup the lenders datasource as follows
var dsLenders = new kendo.data.DataSource({
transport: {
read: {
url: "../data/lenders/",
dataType: "jsonp"
},
parameterMap: function(options, operation) {
if (operation === "read") {
return options;
}
}
}
});
and the grid looks like this
$("#gridClaims").kendoGrid({
dataSource: claimData,
autoSync:true,
batch: true,
pageable: {
refresh: true,
pageSizes: true
},
filterable: true,
sortable: true,
selectable: "true",
editable: {
mode: "popup",
confirmation: "Are you sure you want to delete this record?",
template: $("#claimFormPopup").html()
},
navigable: true, // enables keyboard navigation in the grid
toolbar: ["create"], // adds insert buttons
columns: [
{ field:"id_clm", title:"Ref", width: "80px;" },
{ field:"status_clm", title:"Status", width: "80px;" },
{ field:"idldr_clm", title:"Lender", values: dsLenders },
{ field:"type_clm", title:"Claim Type"},
{ field:"value_clm", title:"Value", width: "80px;", format:"{0:c2}", attributes:{style:"text-align:right;"}},
{ field:"created", title:"Created", width: "80px;", format: "{0:dd/MM/yyyy}"},
{ field:"updated", title:"Updated", width: "80px;", format: "{0:dd/MM/yyyy}"},
{ field:"user", title:"User" , width: "100px;"},
{ command: [
{text: "Details", className: "claim-details"},
"destroy"
],
title: " ",
width: "160px"
}
]
});
however its still displaying the id in the lenders column. Ive tried creating a local datasource and that works fine so i now is something to do with me using a remote datasource.
any help would be great
thanks
Short answer is that you can't. Not directly anyway. See here and here.
You can (as the response in the above linked post mentions) pre-load the data into a var, which can then be used as data for the column definition.
I use something like this:-
function getLookupData(type, callback) {
return $.ajax({
dataType: 'json',
url: '/lookup/' + type,
success: function (data) {
callback(data);
}
});
}
Which I then use like this:-
var countryLookupData;
getLookupData('country', function (data) { countryLookupData = data; });
I use it in a JQuery deferred to ensure that all my lookups are loaded before I bind to the grid:-
$.when(
getLookupData('country', function (data) { countryLookupData = data; }),
getLookupData('state', function (data) { stateLookupData = data; }),
getLookupData('company', function (data) { companyLookupData = data; })
)
.then(function () {
bindGrid();
}).fail(function () {
alert('Error loading lookup data');
});
You can then use countryLookupData for your values.
You could also use a custom grid editor, however you'll probably find that you still need to load the data into a var (as opposed to using a datasource with a DropDownList) and ensure that the data is loaded before the grid, because you'll most likely need to have a lookup for a column template so that you're newly selected value is displayed in the grid.
I couldn't quite get ForeignKey working in any useful way, so I ended up using custom editors as you have much more control over them.
One more gotcha: make sure you have loaded your lookup data BEFORE you define the column. I was using a column array that was defined in a variable I was then attaching to the grid definition... even if the lookup data is loaded before you use the grid, if it's defined after the column definition it will not work.
Although this post past 2 years, I still share my solution
1) Assume the api url (http://localhost/api/term) will return:
{
"odata.metadata":"http://localhost/api/$metadata#term","value":[
{
"value":2,"text":"2016-2020"
},{
"value":1,"text":"2012-2016"
}
]
}
please note that the attribute name must be "text" and "value"
2) show term name (text) from the foreign table instead of term_id (value).
See the grid column "term_id", the dropdownlist will be created if added "values: data_term"
<script>
$.when($.getJSON("http://localhost/api/term")).then(function () {
bind_grid(arguments[0].value);
});
function bind_grid(data_term) {
$("#grid").kendoGrid({
dataSource: ds_proposer,
filterable: true,
sortable: true,
pageable: true,
selectable: "row",
columns: [
{ field: "user_type", title: "User type" },
{ field: "user_name", title: "User name" },
{ field: "term_id", title: "Term", values: data_term }
],
editable: {
mode: "popup",
}
});
}
</script>
For those stumbling across this now, this functionality is supported:
https://demos.telerik.com/aspnet-mvc/grid/foreignkeycolumnbinding