With the particular database server we are using it's just as expensive to run a COUNT() query as it is to run the actual query, so I'd prefer to not display the count at all.
Normally, outside of kendo grid, I would just display previous and next buttons but not show the total count. Is it possible to achieve something similar with Kendo Grid?
Set the numeric property of the pageable object in your kendo grid options. That should disable the numeric buttons for you:
$("#grid").kendoGrid({
pageable: {
numeric: false
}
});
See http://docs.kendoui.com/api/web/grid#configuration-pageable.numeric for more info
To set the data to a specific count, in your kendo datasource options, use the schema.total function to return some large value to give you enough paged data:
var dataSource = new kendo.data.DataSource({
schema: {
total: function(response) {
return 100000000;
}
}
});
Related
I want to be able to filter a column based on values from a different column.
I have bound a column to ID property and showing Name (using template). When the user filters/sorts, the values of the bound property (ID) are used. I want to use the values of a different property/column.
I have already figured out a way to handle sort (using compare function for kendo.ui.GridColumnSortable) but cannot find a way to handle filter.
PS: I tried using filterMemberPath and sortMemberPath but they only seem to work for server side filtering/sorting.
Talked to Kendo support and found a couple of ways to handle this issue:
if using Kendo version 2016.3 or above, the filter event can be used
filterable: true,
filter: function(e) {
if (e.filter.filters[0].field == "age") {
e.preventDefault();
this.dataSource.filter({ field: "name", operator: "startswith", value: "Jane" });
}
but if using kendo version 2016.1 or below, the following approach works which uses filterMenuInit and binds the click event on filter button
filterable: true,
filterMenuInit: function(e) {
var button = e.container.find(".k-primary");
var fieldName = e.field;
var grid = this;
button.on("click", function(e) {
e.preventDefault()
grid.dataSource.filter({ field: "name", operator: "startswith", value: "Jane" });
});
},
I have strange issue while setting the total record count for the Kendo Grid.
I am populating the grid based on a search query. The results is loaded upon the submit button click .
Grid pagination is controlled though server side code. So the search results are reduced to the subset of the result and the number of records retrieved are as per the page size set for the grid .
I also mentioned a field to get the total number of results .
After the server side execution , the results are send back in JSON format . The response contains the result data and the TotalRecordCount .
I am setting the results to the Grid like this (This works !)
$('#SearchResult').data('kendoGrid').dataSource.data(response.SearchResults)
But the problem is ,number of pages is always sets to 1
I tried setting the "total" property of the Grid datasource explicitly ,
$('#SearchResult').data('kendoGrid').dataSource.total(response.TotalResults)
but this is not setting properly
I tried different methods
var dataSource = new kendo.data.DataSource({
data: response.SearchResults,
total: response.TotalRecordNumbers
});
var resultGrid = $('#SearchResult').data('kendoGrid');
resultGrid.setDataSource(dataSource);//does not work
I am able to populate the results, but the issue is since the total is not set properly, the pagination is not working .
Any help is much appreciated .
Thank you
You have to set the 'total' on the schema, not on the dataSource itself.
var dataSource = new kendo.data.DataSource({
transport: {
/* transport configuration */
},
serverGrouping: true,
schema: {
total: function(response) {
return response.total;
}
}
});
This example is copied from the official Doku
I am wondering if there's an easy way to have the multiselect widget's css functionality shown in this demo
http://demos.kendoui.com/web/multiselect/index.html
applied to an autocomplete widget.
If the only reason for using autocomplete is that the list of values is huge and you want to do server side filtering (serverFiltering) with a multiselect widget as well. You just need to define serverFiltering as true.
Example:
var ds = new kendo.data.DataSource({
transport: {
read: {
url : "getData.php"
}
},
serverFiltering: true
});
$("#items").kendoMultiSelect({
dataValueField: "name",
dataTextField : "name",
dataSource : ds
});
You will receive a some additional parameters saying what the user has typed so far and you server can return only the data that meets the condition.
This JSFiddle (http://jsfiddle.net/OnaBai/rpDuL/) tries to show you how it works. You can start typing a country name and see that it actually filters the data. Since this is just JavaScript I've simulated server filtering implementing a read function that greps the data for those records meeting the condition.
I have a Grid which has edit set to Popup.
In my grid model, I have defined a field level validation for uniqueness like below. How can I know which is the currently select row so I can avoid comparing my field value with the same row's value?
model: {
id: "id",
fields: {
id: {
nullable: false,
editable: false,
hidden : true
},
"timeStamp": {
type: "date",
validation: { // validation rules
required: true, // the field is required
unique: function (input) {
if (!input.is("[name=timeStamp]")) {
return true;
}
input.attr("data-unique-msg", '${msg.UNIQUE_TIME}' );
var data = grid.dataSource.data();
//HOW CAN I KNOW WHICH ROW Is currently selected?
I am also working with custom validators on a Kendo Grid Popup Window. I used the following code to obtain the model:
var m = $(input).closest('.k-popup-edit-form').data('kendoEditable').options.model;
I prefer this mechanism because I don't have refer to the grid object, making the code more portable from page to page.
Maybe a little tricky solution but it should work... Each record in a DataSource has a Unique Id assigned by Kendo UI. These uid, for popup editing is used in the window in such a way that Kendo UI can easily identify the record being edited without having to save the state. You should do the same.
Your function just need to do:
var uid = $(input).closest(".k-popup-edit-form").data("uid");
var item = grid.dataSource.getByUid(uid);
Now, item contains all the fields of the record being edited.
I have a Kendo grid with a checkbox as a column along with other columns. I want to get all the rows where the checkbox is checked.
Please give me some idea.
Why not use the multi select feature of Kendo ui Grid
var checkDataSource = new kendo.data.DataSource({
data: checks
});
$("#CheckGrid").kendoGrid({
dataSource: checkDataSource,
change: CheckGridOnChange,
selectable:"multiple",
...
});
function CheckGridOnChange() {
var data = checkDataSource.view(),
selected = $.map(this.select(), function(item) {
return data[$(item).index()].CheckId;//CheckId is my unqiue id for my data, yours would probably be different
});
var ids = selected.join(",");
}
Ref url: Kendo ui grid Events Just hold control and select multiple rows