I would like pagination to show only if I have more records than my pageSize. Is there any way to achieve this affect?
Ideally as data is added/removed on the client the pagination mechanism would show/hide accordingly (again, only displaying if there are more items than the pagesize).
Any ideas/workarounds?
Update
The answer provided by j4ro seems to work great once I removed the height setting code. It was not necessary for me, but your mileage may vary as I didn't test this with a more typical use-case.
dataBound: function () {
if (this.dataSource.totalPages() === 1) {
this.pager.element.hide();
}
else {
this.pager.element.show();
}
}
Add this function to your grid on dataBound event:
dataBound: function () {
var gridContent = this.element.find('.k-grid-content');
if (this.dataSource.totalPages() === 1) {
gridContent.css('height', gridContent.height() + this.pager.element.innerHeight());
this.pager.element.hide();
}
else {
this.pager.element.show();
gridContent.css('height', gridContent.height() - this.pager.element.innerHeight());
}
}
Related
I have a SlickGrid with dataview working pretty good, grid and dataview are synced up for modify and delete selections using syncGridSelection, however an interesting problem occurs on the changed CSS styles. The changed rows CSS stlye are being applied to the same "visible" row number in the grid when I choose a filter set that does not include the actual changed rows. The sort works fine, but I noticed that the filter is not working. Does anyone have a fix for this? Can you paste as much info and code for me as possible because I'm new to SlickGrid. I pasted code that loads up the grid.
function LoadGridData() {
$.getJSON('#Url.Action("GetConfigurations")', function (rows) {
if (rows.length > 0) {
if (rows[0].id = 'undefined') {
$(rows).each(function (index) {
rows[index].newAttribute = "id"
rows[index]["id"] = index;
});
}
};
data = rows;
dataView.beginUpdate();
dataView.setItems(data);
dataView.setFilter(filter);
dataView.endUpdate();
// Refresh the data render
grid.invalidate();
grid.render();
grid.setSelectedRows([]);
dataView.syncGridSelection(grid, true);
});
}
After debugging I found that I had used an older example of marking css changed in function getItemMetadata. The correct code is below. Previously I was referencing data[row]. When Syncing DataView to Grid, the getItem() method returns the correct row. In this case my DataState is my own changed indicator on the view model.
dataView.getItemMetadata = function (row) {
var item = this.getItem(row);
if (item && item.DataState == 2) {
return {
"cssClasses":
"changed"
};
}
In my KendoUI datasource, I have the following defined:
change: function (e) {
if (e.action === "itemchange") {
// auto-format Display As
var geoDisplay, geoUrl;
if (e.items[0].GeoState.length > 0) {
geoDisplay = e.items[0].GeoCity + ", " + e.items[0].GeoState;
} else {
geoDisplay = e.items[0].GeoCity;
}
//this.dataItem(this.select()).GeoDisplay = geoDisplay;
e.items[0].GeoCity = "updated: " + e.items[0].GeoCity; // visually updates if editing this field
e.items[0].GeoDisplay = geoDisplay; // field is not updated
}
console.log("change: " + e.action);
console.log(e);
// do something else with e
},
Essentially I want to update other fields on a row being edited based on a field's input.
In this example, GeoCity is updated. The itemchange event is fired and only the GeoCity field gets updated with the new value. However I can see from the data that the other fields' data have been updated.
I have tried doing a .sync() and a few other methods to get this to appear, but no luck so far.
Incidentally, my grid is defined within an AngularJS directive and it's onEdit event isn't what I'm looking for, as I want the events that fire when each field is updated, not the whole row.
How can I get the other fields to visually update?
I managed to solve the issue by placing the following code in the data source code:
change: function (e) {
if (e.action === "itemchange") {
// auto-format Display As
var thisRow = $("#accountGeoLocationEditorGrid tbody").find(".k-grid-edit-row");
// update geo display
if (e.field === "GeoCity" || e.field === "GeoState") {
var geoDisplay, geoUrl;
if (e.items[0].GeoState.length > 0) {
geoDisplay = e.items[0].GeoCity + ", " + e.items[0].GeoState;
} else {
geoDisplay = e.items[0].GeoCity;
}
if (e.items[0].GeoDisplay.length == 0) {
e.items[0].GeoDisplay = geoDisplay;
thisRow.find("input[name=GeoDisplay]").val(geoDisplay);
}
}
}
I was really looking for another way to do this, as I don't really want to be doing DOM lookup, etc in a defined datasource.
Other suggestions welcome.
Did you try the grid refresh() method? At the end of your changes in the change event, call this line (with your grid's correct id):
$("#grid").data("kendoGrid").refresh();
I've tested this on my grid and kendo's samples and it works fine like this. You are editing the datasource but the grid is not aware of the extra changes you have done, except the cell that was edited. Calling refresh will update all the cells on the grid to reflect the datasource.
Validation used for a field in KendoGrid works fine on currently being edited cell when I try to select other cell.But It doesn't work when I try to sort any column or use filter.
How can I enforce validation as the way normal focusout event works to any HTML element?
Code used in datasource
var mainDataSource={
data :listJson
,type:"json"
,batch:true
,schema: {
model: {
id: "Port_ID"
,fields:{
Port_ID:{type: "string",editable:false,nullable:false}
,Slot1:{type:"number",editable:false}
,Slot2:{type:"number",editable:false}
,Type1:{type: "string",editable:true}
,Type2:{type: "string",editable:false}
,IsHFL:{type:"boolean",editable:false}
Project:{
type:"string"
,editable:true
,validation: {
custom: function(input) {
if(input.val()=="") {//to be added further
input.attr("data-custom-msg", "Message");
return false;
}
else
return true;
}
}
}
,Used_For:{ type: "string",editable:true}
,Start_Date:{type:"date",editable:true}
}
}
}
};
Got feedback from telerik team on it http://www.kendoui.com/forums/framework/validation/validation-call-not-triggered-on-grid-column-sort-filter.aspx
Generally speaking, preventing the binding when there are validation errors is not supported, but can be achieved with some additional code. Basically, you should use the dataSource requestStart event to prevent the binding with the event argument preventDefault method when there are errors e.g.
requestStart: function(e){
var grid = $("#grid").data("kendoGrid");
if(grid.editable && !grid.editable.validatable.validate()){
e.preventDefault();
}
}
When I create a checkbox column (through use of formatters/editors) in Slickgrid, I've noticed that it takes two clicks to interact with it (one to focus the cell, and one to interact with the checkbox). (Which makes perfect sense)
However, I've noticed that I am able to interact with the checkbox selectors plugin (for selecting multiple rows) with one click. Is there any way I can make ALL of my checkboxes behave this way?
For futher readers I solved this problem by modifing the grid data itself on click event. Setting boolean value to opposite and then the formatter will display clicked or unclicked checkbox.
grid.onClick.subscribe (function (e, args)
{
if ($(e.target).is(':checkbox') && options['editable'])
{
var column = args.grid.getColumns()[args.cell];
if (column['editable'] == false || column['autoEdit'] == false)
return;
data[args.row][column.field] = !data[args.row][column.field];
}
});
function CheckboxFormatter (row, cell, value, columnDef, dataContext)
{
if (value)
return '<input type="checkbox" name="" value="'+ value +'" checked />';
else
return '<input type="checkbox" name="" value="' + value + '" />';
}
Hope it helps.
The way I have done it is pretty straight forward.
First step is you have to disable the editor handler for your checkbox.
In my project it looks something like this. I have a slickgridhelper.js to register plugins and work with them.
function attachPluginsToColumns(columns) {
$.each(columns, function (index, column) {
if (column.mandatory) {
column.validator = requiredFieldValidator;
}
if (column.editable) {
if (column.type == "text" && column.autocomplete) {
column.editor = Slick.Editors.Auto;
}
else if (column.type == "checkbox") {
//Editor has been diasbled.
//column.editor = Slick.Editors.Checkbox;
column.formatter = Slick.Formatters.Checkmark;
}
}
});
Next step is to register an onClick event handler in your custom js page which you are developing.
grid.onClick.subscribe(function (e, args) {
var row = args.grid.getData().getItems()[args.row];
var column = args.grid.getColumns()[args.cell];
if (column.editable && column.type == "checkbox") {
row[column.field] = !row[column.field];
refreshGrid(grid);
}
});
Now a single click is suffice to change the value of your checkbox and persist it.
Register a handler for the "onClick" event and make the changes to the data there.
See http://mleibman.github.com/SlickGrid/examples/example7-events.html
grid.onClick.subscribe(function(e, args) {
var checkbox = $(e.target);
// do stuff
});
The only way I found solving it is by editing the slick.checkboxselectcolumn.js plugin. I liked the subscribe method, but it haven't attached to me any listener to the radio buttons.
So what I did is to edit the functions handleClick(e, args) & handleHeaderClick(e, args).
I added function calls, and in my js file I just did what I wanted with it.
function handleClick(e, args) {
if (_grid.getColumns()[args.cell].id === _options.columnId && $(e.target).is(":checkbox")) {
......
//my custom line
callCustonCheckboxListener();
......
}
}
function handleHeaderClick(e, args) {
if (args.column.id == _options.columnId && $(e.target).is(":checkbox")) {
...
var isETargetChecked = $(e.target).is(":checked");
if (isETargetChecked) {
...
callCustonHeaderToggler(isETargetChecked);
} else {
...
callCustonHeaderToggler(isETargetChecked);
}
...
}
}
Code
pastebin.com/22snHdrw
Search for my username in the comments
I used the onBeforeEditCell event to achieve this for my boolean field 'can_transmit'
Basically capture an edit cell click on the column you want, make the change yourself, then return false to stop the cell edit event.
grid.onBeforeEditCell.subscribe(function(row, cell) {
if (grid.getColumns()[cell.cell].id == 'can_transmit') {
if (data[cell.row].can_transmit) {
data[cell.row].can_transmit = false;
}
else {
data[cell.row].can_transmit = true;
}
grid.updateRow(cell.row);
grid.invalidate();
return false;
}
This works for me. However, if you're using the DataView feature (e.g. filtering), there's additional work to update the dataview with this change. I haven't figured out how to do that yet...
I managed to get a single click editor working rather hackishly with DataView by calling
setTimeout(function(){ $("theCheckBox").click(); },0);
in my CheckBoxCellEditor function, and calling Slick.GlobalEditorLock.commitCurrentEdit(); when the CheckBoxCellEditor created checkbox is clicked (by that setTimeout).
The problem is that the CheckBoxCellFormatter checkbox is clicked, then that event spawns the CheckBoxCellEditor code, which replaces the checkbox with a new one. If you simply call jquery's .click() on that selector, you'll fire the CheckBoxCellEditor event again due because slickgrid hasn't unbound the handler that got you there in the first place. The setTimeout fires the click after that handler is removed (I was worried about timing issues, but I was unable to produce any in any browser).
Sorry I couldn't provide any example code, the code I have is to implementation specific to be useful as a general solution.
I have 3 different tabs where i am displaying data using jQGrids(each tab contain one grid).
But i just thought that my grids are completely the same, only the difference is that they using different url to get data.
So I have three similar girds on each tab only with different urls:
First: url: '/Home/GetData?id=1' Second: url: '/Home/GetData?id=2' and Third: url: '/Home/GetData?id=3'
So i was thinking that may be i may declare grid only once and than on each tab click a can pass the url to load data? So on each tab click jQGrid will be populating from the new url.
May be some one may have any ideas about that?
Or may be some one may have better ideas how to reduce "jQGrid copy-paste" in that case?
UPDATE 0:
Nearly get it work i mean it is working but there is one small problem,
When i am switching tabs the header of the grid getting lost...and some jqgrid formatting as well.
here is my code:
$("#tabs").tabs({
show: function (event, ui) {
if (ui.index == 0) {
//$("#Grid1").appendTo("#tab1");
//$("#Grid1Pager").appendTo("#tab1");
//When Appending only pager and grid div, header getting lost so i've append the whole grid html instead
$("#gbox_Grid1").appendTo("#tab1");
changeGrid("#Grid1", 1);
}
else if (ui.index == 1) {
//$("#Grid1").appendTo("#tab2");
//$("#Grid1Pager").appendTo("#tab2");
$("#gbox_Grid1").appendTo("#tab2");
changeGrid("#Grid1", 2);
}
else if (ui.index == 2) {
//$("#Grid1").appendTo("#tab3");
//$("#Grid1Pager").appendTo("#tab3");
$("#gbox_Grid1").appendTo("#tab3");
changeGrid("#Grid1", 3);
}
}
});
function changeGrid(grid, id) {
$(grid).jqGrid('setGridParam', {
url: '/Home/GetData?id=' + id
});
$(grid).trigger('reloadGrid');
}
UPDATE 1
All right, i've changed the code to append the whole grid instead of appending grid div and pager only. So it is working like that.
You can basically make the tabs as regular buttons that will call some function which sets new URL parameter to the grid and reloads it.
The function should be something like this:
function changeGrid(grid, id) {
$(grid).jqGrid('setGridParam', {
url: '/Home/GetData?id=' + id, page: 1
});
$(grid).trigger('reloadGrid');
}
Note that I set the page to 1. Keep in mind that you might need to set the default sorting column or something similar depending on your solution.
UPDATE
If you really want to go with the tabs, the 'show' event handler can be simplified.
Try this:
$("#tabs").tabs({
show: function (event, ui) {
var id = ui.index + 1;
$("#gbox_Grid1").appendTo("#tab" + id);
$("#Grid1").jqGrid('setGridParam', {
url: '/Home/GetData?id=' + id
});
$("#Grid1").trigger('reloadGrid');
}
});