How to delete multiple rows in Kendo grid? - kendo-ui

I have a kendo grid with first column as Checkboxes. I want to delete multiple rows using those check boxes. I am able to delete only single row at a time.
I tried adding
.Batch(true)
for the data source and below is my function for delete button outside the grid.
function deleteRule() {
var grid = $("#grid").data("kendoGrid");
grid.select().each(function () {
grid.removeRow($(this));
});
}
Any suggestions please ?

Yo mate,
How exactly do you remove that one row? Why you use the select method?
Basically I would suggest you to create a delete button which executes the logic to delete the selected rows - I guess you are using a tempalte column with a checkbox inside. If you add a class to that checkbox you can easily select all the checkboxes inside of the grid. So lets say the name of the class for the checkbox is cool then you can execute the following logic in the delete button click handler:
function whenYourDeleteButtonIsClicked(){
var grid = $("#grid").data("kendoGrid");
$('.cool:selected').each(function(){
grid.removeRow($(this).closest('tr'));
})
}
I hope you got the idea mate.
Good luck.

Here is what i use
works very well
$('#your-grid-id').data("kendoGrid").select().each(function () {
grid.dataSource.remove(grid.dataItem($(this).closest("tr")));
});

Related

Get the field that is going to be edited in kendo beforeedit event

I have a dependent column that needs to be editable based on value of the first cell. How can do this using the beforeedit event of kendo grid.
I wish to avoid closing the cell in edit event of kendo grid.
Below is a sample
https://dojo.telerik.com/enodEwub
In order to achieve this when "Inline" edit mode is used you can use the Grid's cancelRow() method.
$("#grid").kendoGrid({
//....
edit: onEdit
});
function onEdit(e) {
//your custom logic
$('#grid').data("kendoGrid").cancelRow();
}
Hope that helps!

Is it possible (and if so how) to add an item to the column menu of a kendo UI grid?

So I have a grid and the columns have the good ol' column menu on them with the filtering/sorting/excluding of columns and it all works fine.
The fly in the ointment is that I would like to allow the user to rename a column heading and the obvious place in the UI to allow this is in said column menu.
Something like this:
(where the red bit is just another option that I click on and popup a little window to let me type in a new heading)
Is this possible and how would I do it?
I see that menus can be customized and the grid demo shows how to adjust the stuff in the filter popup but I am not sure how I would add this item (I can see how I would programmatically do the rename but just this getting an option onto the menu has me stumped).
You can use the columnMenuInit event. Two possibilities:
$("#grid").kendoGrid({
dataSource: dataSource,
columnMenu: true,
columnMenuInit: function (e) {
var menu = e.container.find(".k-menu").data("kendoMenu");
var field = e.field;
// Option 1: use the kendoMenu API ...
menu.append({
text: "Rename"
});
// Option 2: or create custom html and append manually ..
var itemHtml = '<li id="my-id" class="k-item k-state-default" role="menuitem">' +
'<span class="k-link"><b>Manual entry</b></span></li>';
$(e.container).find("ul").append(itemHtml);
// add an event handler
menu.bind("select", function (e) {
var menuText = $(e.item).text();
if (menuText == "Rename") {
console.log("Rename for", field);
} else if (menuText === "Manual entry") {
console.log("Manual entry for", field);
}
});
}
})
See fiddle with two alternatives:
http://jsfiddle.net/lhoeppner/jJnQF/
I guess that the point of a filter is to filter, not to make changes on the grid.
But anyways i found this Kendo Post that may help you to achieve what you need.
You can also take a look a this one too.

Set title and additional properties to kendo ui grid

I am using kendo ui grid to display data. I want to set title for the grid.Is there any way to set it.
Also I want to set some additional/custom property for grid which will help to identify the grid uniquely. Any custom property I can set to grid so I can get its value when required.
So in case if there are more instances on grid this will help.
Please suggest on this.
Iterating through all your tables can be done using:
$.each($(".k-grid"), function (idx, grid) {
// Do whatever you want to do with "grid"
...
});
If you want to add a title, might be something like:
$.each($(".k-grid"), function (idx, grid) {
$(grid).data("kendoGrid").wrapper.prepend('<div class="k-grid-header"><table><thead><tr><th class="k-header">Title</th></tr></thead></table></div>');
});
For setting a click event to the HTML img elements, you can do:
$("tr", ".k-grid").on("click", "img:first", function () {
// Here "this" is the "img" on which you clicked, finding the grid is:
var grid = $(this).closest(".k-grid").data("kendoGrid");
console.log("grid", grid);
// If you want to access the "id"
console.log("id", grid.element.attr("id"));
});
Once you click on the first image of each row what I do in the event handler is finding the closest HTML element with k-grid class (the grid): this is the HTML containing the grid.
If you want to get Kendo UI grid element the you need to use data("kendoGrid").
Simple and elegant.
In this JSFiddle: http://jsfiddle.net/OnaBai/2qpT3/2/, if you click on "Add Titles" button you add a title to each table and if you click on "Add Handlers" and then in an image, you will get an alert with the id of the table that the image belongs to.
EDIT: If you want to iterate on every image that is in the first column, of every KendoUI grid on your document, you should do:
$.each($("td:first > img", ".k-grid table tbody > tr"), function (idx, elem) {
// "elem" is the image
console.log(idx, elem);
// associate event
$(elem).on("click", fnHandler);
});
I prefer to change the title like this:
$("#grid th[data-field=Field]").html("Title");

Kendo cascading dropdown loading dropdown based on other drop down selection

I am planning of using a cascading kendo drop down.
Drop down 1 - Countries - it will list down all the countries.
Drop down 2 - States - Based on the selection of the country I have to show the states here.
The data for both are loaded from my api controllers. I referred to this link
http://demos.kendoui.com/web/dropdownlist/cascadingdropdownlist.html
But, I need to pass the first selected value to the second drop down.
PLease suggest the best way to do it. Examples would be really helpful.
Thanks.
you have to use events for that
http://demos.kendoui.com/web/dropdownlist/events.html
.Events(e =>
{
e.Change("change").Select("select").Open("open").Close("close").DataBound("dataBound");
})
<script>
function change() {
// get a reference to the dropdown list
var dropdownlist = $("#dropdownlistTwoForStates").data("kendoDropDownList");
//Write your logic here to bind data for thie dropdown
// disable the dropdown list
dropdownlist.enable(true);
};
</script>

Prevent certain SlickGrid columns from being reordered

The drag/drop column reordering is a great feature, but how do I prevent the users from moving particular (non-data) columns?
For example, I am using the Checkbox Selectors for my mutli-select Grid, but this column should always be locked to the left, while the other columns can be freely reordered.
I looked at the sortable demos on jQuery UI and modified the setupColumnReorder function in slick.grid.js to exclude certain items. By excluding the checkbox column I was able to prevent it from getting reordered, even by dragging other columns before it.
function setupColumnReorder() {
var checkBoxColumn = $headers.children([0]).attr('id');
$headers.sortable({
items: "div:not('.slick-resizable-handle','#"+checkBoxColumn+"')",
...
Since my checkbox column is always first, I just grab the id like so. A bit of a hack, but it worked.
I tried this:
function setupColumnReorder() {
var checkBoxColumn = $headers.children([0]).attr('id');
$headers.sortable({
items: "div:not('.slick-resizable-handle','#"+checkBoxColumn+"')",
...
but i had problems when dragging other columns before it. Then i tried this:
grid.onColumnsReordered.subscribe(function (e, args) {
if (myGridColumns[0].id != grid.getColumns()[0].id)
{
grid.setColumns(myGridColumns);
}
else
{
myGridColumns= grid.getColumns();
}
});
and it was just fine.

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