I have a kendo grid with column with 'sortable' set to true. I want to determine in the dataBound function if it was called as a result of the sort arrow being clicked on. How do I do this?
To see if it was triggered by the arrow being clicked you could see if the direction of the sort changed. To get the direction of the sort you can do something like this:
$('#yourGrid').data('kendoGrid').dataSource.bind('change', function() {
//YOUR CODE
var grid = $("#yourGrid").data("kendoGrid");
var dataSource = grid.dataSource;
var sortArray = ds.sort();
//assuming you only have column being sorted you would use the array in the position 0
var direction = sortArray[0].dir;
//YOUR CODE
}
Related
I have a DropDownListFor control inside a Kendo grid, and I need the value of another element in that row in order to pass a parameter to the DropDownList's server-side read method. It's a similar setup to the example here.
Here is the code which defines the DropDownListFor:
#(Html.Kendo().DropDownListFor(m => m)
.Name("LinkIdentifier")
.OptionLabel("---Select Form, etc.---")
.DataValueField("ID")
.DataTextField("Name")
.AutoBind(false)
.DataSource(source =>
{
source.Read(read =>
{
read.Action("LinkTypeIdentifierDdl", "Alerts").Type(HttpVerbs.Post).Data("getCurrentLinkType");
}).ServerFiltering(true);
})
)
And here is the javascript function which is called in .Data:
function getCurrentLinkType() {
var grid = $("#linkGrid").data("kendoGrid");
var data = grid.dataSource.data();
var dataItem = data[0];
var valueForParameter = dataItem.SomeValue
//--snipped for brevity
}
The problem above is data[0]. It only points to the first row in the grid, which won't be correct if editing any other row. If I use a javascript debugger within this method and look at "this", it's the AJAX call which is referenced, not the dropdown control. I can't specify ".Data("getCurrentLinkType(this)")" as the method.
So, how can I determine which row/control has made the call to getCurrentLinkType?
There is no context passed from the Grid to the DropDownList to the Data function, so you need to figure it out yourself.
I have found 2 ways.
1:
// If your grid is single Selectable(), use the current selection
var dataItem = grid.dataItem(grid.select());
2:
// If your grid is not Selectable or is multi Selectable, get the row/tr closest to the editor and then get the dataItem from that
var dataItem = grid.dataItem($("#LinkIdentifier").closest("tr"));
I would like to remove row from Treelist after click in button. I bind function in event "click: remove". Firstly , I choose a row and next try remove object from DataSource. And this point is not correct.
remove: function () {
var that = this;
if (this.isGridSelected) {
var arr = [];
arr = this.selectedRow.toJSON();//this line show selected row
this.roleDataSourcePrzypisane.remove(this.arr);//I think this row is wrong ...Remove no work
console.log(this.roleDataSourcePrzypisane);
this.set("roleDataSourcePrzypisane", this.roleDataSourcePrzypisane);
} else {
iwInfo('Please choose row', 'warning');
}
}
function removeRow(e) {
var treelistCurrentInstance = $("#treelist").data("kendoTreeList");
var currentRow = $(e).closest('tr');
treelistCurrentInstance.removeRow(currentRow);
}
I have tried something similar, i'm taking reference of current row by instance of button and using removeRow method of kendo treelist.
Assume a button control:
<button id="btn">Remove selected row</button>
The click event removes a selected row in the kendoUI jQuery TreeList control:
$("#btn").click(function()
{
let Treelist = $("#treelist").data("kendoTreeList");
let Row = Treelist.select();
Treelist.removeRow(Row);
});
Ensure that the TreeList is editable, e.g. with:
"editable": true
in the TreeList creation definition, otherwise the .removeRow() method won't work.
I have a kendo grid inside kendo grid (using integrated grid). I have implemented drag n drop in both grid using grid sortable provided by kendo. But it is only work with one grid at a time. If I commented one of them, second grid reordering perfectly. I want that user can able to drag n drop both grid. Please help.
I was missing filter option in parent grid.
var grid = mygrid.data("kendoGrid");
grid.table.kendoSortable({
handler: ".handler",
**filter: ">tbody >tr:not(.k-detail-row)",**
hint: function (element) { //customize the hint
var grid = $("#gridProductGroup").data("kendoGrid"),
table = grid.table.clone(), //clone Grid's table
wrapperWidth = grid.wrapper.width(), //get Grid's width
wrapper = $("<div class='k-grid k-widget'></div>").width(wrapperWidth),
hint;
table.find("thead").remove(); //remove Grid's header from the hint
table.find("tbody").empty(); //remove the existing rows from the hint
table.wrap(wrapper); //wrap the table
table.append(element.clone()); //append the dragged element
//table.append(element.next().clone());
hint = table.parent(); //get the wrapper
return hint; //return the hint element
},
Filter differentiate between detail grid and parent grid.
It is working for me
I am using Kendo UI grid without pagination. I have set the below code to load the data in the grid view while scrolling
scrollable: { virtual: true },
My problem is, I have selected 100th row in the grid by scrolling . I am refreshing the grid. After refresh, I need to select the 100th row again. Is it possible ?
Regards
Senthil
After refresh select the row you need as shown below
var grid = $("#grid").data("kendoGrid");
grid.select("tr:eq(100)");
For more info check out kendo DOC http://docs.telerik.com/kendo-ui/api/javascript/ui/grid#methods-select
Basically the question is annotate the row that you have selected when it changes to do so and then in dataBound event select that same row.
In order to save the selected row you can do:
change: function (e) {
// Save some information from the selected row
var item = this.dataItem(this.select());
// Here we save uid
var uid = item.uid;
this.selectedRow = uid;
},
dataBound: function (e) {
// If we have any row selected
if (this.selectedRow) {
// Use this.select for selecting it
this.select("tr[data-uid='" + this.selectedRow + "']");
}
}
You can see this here: http://jsfiddle.net/OnaBai/eLk7zkzs/
Is there a way to add a new row to a slickgrid on demand? For example, have a button on the page that shows the new row when clicked.
It can be done easily using dataView.addItem(params), just replace params with your parameters..
function addNewRow(){
var item = { "id": "new_" + (Math.round(Math.random() * 10000)), "Controller": tempcont, "SrNo1": tempsrno };
dataView.addItem(item);
}
here id, Controller, SrNo1 are ids of colunm
You can add a row dynamically, such as with a button click, by subscribing the "onAddNewRow" listener to your grid object. As many have suggested, it is best to use the dataView plugin to interface with your data. Note that you'll want the "enableAddRow" option set to "true".
Firstly, DataView requires that a unique row "id" be set when adding a new row. The best way to calculate this is by using dataView.getLength() which will give you the number of rows that currently exist in you grid (which we'll use as the id for the new row). The DataView addItem function expects an item object. So we create an empty item object and append the id to it.
Secondly, you'll be only focusing a single cell when you add your data. After you've entered that data (by blurring that cell), DataView will notice that you have not entered data for any of the remaining cells in the row (of course) and will default their values to "undefined". This is not really a desired effect. So what you can do is loop through the columns you've explicitly set and append them to our item object with a value of "" (empty string).
Thirdly, we don't want all the cells to be blank. Actually, we want the original cell's entered data to appear. We have that data so we can set it last so that it will overwrite the "" (empty string) value we previously set.
Lastly, we'll want to update the grid such that it displays all of these changes.
grid.onAddNewRow.subscribe(function (e, args) {
var input = args.item;
var col = Object.keys(input)[0]
var cellVal = input[Object.keys(input)[0]]
// firstly
var item = {};
item.id = dataView.getLength();
// secondly
$.each(columns, function(count, value) {
colName = value.name
console.log(colName)
item[colName] = ""
})
// thirdly
item[col] = cellVal
dataView.addItem(item);
// lastly
grid.invalidateRows(args.rows);
grid.updateRowCount();
grid.render();
grid.resizeCanvas();
});
I hope this helps. Cheers!
You can always add new rows to the grid. All you need to do is add the data object for the row to your grid data.
Assume you create your grid from a data source - myGridData (which is an array of objects).
Just push the new row object to this array. Call the invalidate method on the grid.
Done :)
Beside creating the new row, I needed it to be shown, so that the user can start writing on it. I'm using pagination, so here is what I did:
//get pagination info
var pageInfo = dataView.getPagingInfo();
//add new row
dataView.addItem({id: pageInfo.totalRows});
//got to last page
dataView.setPagingOptions({pageNum: pageInfo.totalPages});
//got to first cell of new row
var aux = totalRows/ pageInfo.pageSize;
var row = Math.round((aux - Math.floor(aux)) * pageInfo.pageSize, 0);
grid.gotoCell(row, 0 ,true);
Before I use pagination, I just needed this:
var newId = dataView.getLength();
dataView.addItem({id: newId});
grid.gotoCell(newId, 0 ,true);
var newRow = {col1: "col1", col2: "col2"};
var rowData = grid.getData();
rowData.splice(0, 0, newRow);
grid.setData(rowData);
grid.render();
grid.scrollRowIntoView(0, false);
Working fine for me.