jqGrid free multiPageSelect multiselect clear selarrrow - jqgrid

I have a jqgrid with multiselect and multiPageSelection. My users can select different rows on different pages between ajax page calls. I've added a custom button and method to the pager to clear the selected rows regardless of page:
$("#grid").navButtonAdd('#pager', {
caption: "Clear",
title: "Clear Selection",
buttonicon: "ui-icon-circle-close",
onClickButton: function() {
$("#grid").setGridParam({ multiPageSelection: false });
$("#grid").resetSelection();
$("#grid").setGridParam({ multiPageSelection: true});
},
position: "first"
});
You can see I've had to set multiPageSelection to false, reset the selection and then set multiPageSelection back to true to make this work.
I tried
$("#grid").resetSelection();
and then one of:
$("#grid").setGridParam({ selarrrow: ""});
$("#grid").setGridParam({ selarrrow: []});
$("#grid").setGridParam({ selarrrow: {}});
$("#grid").setGridParam({ selarrrow: null});
None of them worked. Either they generated an error or the command was ignored and selarrrow still contained values.
resetSelection only clears the values on the current page if multiPageSelection is true.
Is there a jqgrid command to reset the selection regardless of multiPageSelect?

If I correctly understand your problem then you just use wrong way to reset array parameter selarrrow (or other parameter like data). The most easy way to do that consist of the usage of getGridParam instead of setGridParam. The call of getGridParam without an additional parameter returns the reference to all internal parameters of jqGrid and you will be easy to replace any array parameter:
var $grid = $("#grid"), p = $grid.jqGrid("getGridParam"});
p.selarrrow = [];
Alternatively you can use
$("#grid").jqGrid("setGridParam", { selarrrow: [] }, true);
with the second parameter true. The last way is a little more readable, but any usage of setGridParam is slower as the usage of getGridParam.

Related

Two different edit form in jqgrid

Is there a way to implement 2 different edit form in jqGrid. I mean one normal usual edit form and the other with a much lesser form field (customized). both in the same navGrid. say edit and editpartial. can anyone throw some light?? many thanks.
The buttons "Add" and "Edit" added by navGrid call both editGridRow method with different parameters as the second parameter (properties parameter). In case of usage navGrid called as
$("#grid").jqGrid("navGrid", "#pager", {parameters}, prmEdit, prmAdd);
then navGrid calls
$("#grid").jqGrid("editGridRow", rowid, prmEdit);
if the user click "Edit" button and calls
$("#grid").jqGrid("editGridRow", rowid, prmAdd);
if the user click "Add" button.
In the same way you can add new custom button to navigator with respect of navButtonAdd method. For example
$("#grid").jqGrid("navButtonAdd", "#pager", {
caption: ""/*"My Edit"*/,
buttonicon: "ui-icon-note", // some icon
title: "My edit",
onClickButton: function() {
var $self = $(this);
$self.jqGrid("editGridRow",
$self.jqGrid("getGridParam", "selrow"),
{ // some options
recreateForm: true
}
);
}
});
In the way you add one more Edit button. The only thing which you need do now is temporary changing of editable property of some columns before call of editGridRow and resetting it to original value after call of editGridRow. You can use setColProp method to simplify the work. For example if you want to make myColumn column editable you can use
$("#grid").jqGrid("navButtonAdd", "#pager", {
caption: ""/*"My Edit"*/,
buttonicon: "ui-icon-note", // some icon
title: "My edit",
onClickButton: function() {
var $self = $(this);
// make "myColumn" temporary editable
$self.jqGrid("setColProp", "myColumn", {editable: true});
$self.jqGrid("editGridRow",
$self.jqGrid("getGridParam", "selrow"),
{ // some options
recreateForm: true
}
);
// make "myColumn" back as non-editable
$self.jqGrid("setColProp", "myColumn", {editable: false});
}
});
I want to emphasize that usage of recreateForm: true option for all usage of editGridRow (inclusive navGrid) is very important. So I recommend you just change default value of the option:
$.extend($.jgrid.edit, { recreateForm: true });

Kendo AutoComplete - force users to make valid selection

I've got a few Kendo AutoComplete fields linked to remote data (hundreds of possibilities, so DropDownList is not an option).
How can I force users to make a selection from the displayed list?
I'm also retrieving the additional data that's returned from the data source, e.g.
$("#station").kendoAutoComplete({
dataSource: stationData,
minLength: 2,
dataTextField: 'name',
select: function(e){
var dataItem = this.dataItem(e.item.index());
console.dir(dataItem);
}
});
I'm doing additional stuff with the data in dataItem and it needs to be a valid selection.
Thanks
SOLVED:
I think I was possibly over-complicating things. The answer is pretty simple and is posted below.
var valid;
$("#staton").kendoAutoComplete({
minLength: 2,
dataTextField: "name",
open: function(e) {
valid = false;
},
select: function(e){
valid = true;
},
close: function(e){
// if no valid selection - clear input
if (!valid) this.value('');
},
dataSource: datasource
});
This method allows users to type whatever they like into the AutoComplete if list not opens. There are two corrections to fix this:
initialize variable valid as false:
var valid = false;
Check if no valid selection in change event, but not in close:
...
change: function(e){ if (!valid) this.value(''); }
The answer the OP posted, in addition to the answer suggested by #Rock'n'muse are definitely good propositions, but both miss an important and desired functional aspect.
When utilizing the solution given by #Mat and implementing the change-vice-close suggestion from #Rock'n'muse, the typed-in value indeed clears from the widget if no selection is made from the filtered data source. This is great; however, if the user types in something valid and selects a value from the filtered list, then places the cursor at the end of the value and types something which now invalidates the value (doesn't return any valid selections from the data source), the typed-in value is not cleared from the widget.
What's happening is that the isValid value remains true if the previously typed-in (and valid) value should be altered. The solution to this is to set isValid to false as soon as the filtering event is triggered. When the user changes the typed-in value, the widget attempts to filter the data source in search of the typed-in value. Setting isValid to false as soon as the filter event is triggered ensures a "clean slate" for the change event as suggested by the solution from #Rock'n'muse.
Because we're setting isValid to false as soon as the filtering event is triggered, we do not need to do so in the open event (as data source filtering must occur before the user will ever see an option to select). Because of this, the open event binding was removed from #Mat's solution. This also means the initial assignment of false upon declaration of isValid is superfluous, but variable assignment upon declaration is always a good idea.
Below is the solution from #Mat along with the suggestions from #Rock'n'muse and with the filtering implementation applied:
var isValid = false;
$("#staton").kendoAutoComplete({
minLength: 2,
dataTextField: "name",
select: function () {
valid = true;
},
change: function (e) {
// if no valid selection - clear input
if (!valid) {
e.sender.value("");
}
},
filtering: function () {
valid = false;
},
dataSource: datasource
});
As an addendum, using the select event binding to set and evaluate a simple boolean value as #Mat proposes is much cleaner, simpler and faster than using a jQuery $.each(...) on the data source in order to make sure the typed-in value matches an actual item of the data source within the change event. This was my first thought at working a solution before I found the solution from #Mat (this page) and such is my reasoning for up-voting his solution and his question.
Perhaps, can you make your own validation by using the blur event :
$("#station").blur(function() {
var data = stationData,
nbData = data.length,
found = false;
for(var iData = 0; iData < nbData; iData++) {
if(this.value === data[iData].yourfieldname) // replace "yourfieldname" by the corresponding one if needed
found = true;
}
console.log(found);
});
You can check this fiddle.
You most likely need some custom logic which to intercept each key stroke after the min length of two symbols is surpassed, and prevent the option to enter a character which makes the user string not match any of the items from the autocomplete list.
For this purpose intercept the change event of the Kendo autocomplete and compare the current input value from the user against the items from the filtered list.
Hope this helps,
$("#autocomplete_id").val("");
$("#autocomplete").kendoAutoComplete({
dataSource: datasource,
minLength: 1,
dataTextField: "catname",
dataValueField:"id",
select: function(e) {
var dataItem = this.dataItem(e.item.index());
$("#autocomplete_id").val(dataItem.id);
},
dataBound: function(e){
$("#autocomplete_id").val("");
}
});
FYI, autocomplete_id is a hidden field to store the value of the autocomplete. - Sometimes, we would like to have the dataValueField other than dataTextField. So, it serves its purpose.
In this you can get the value of the autocomplete "id" from the element autocomplete_id - which is dataValueField from serverside.
In databound, its values is set to null, and on select, it is assigned the "id" value.
Although the accepted answer works, it is not the best solution.
The solution provided doesn't take into account if the user enters a value before even the kendo AutoComplete widget triggers the open event. In result, the value entered is not forced and therefore, the entry/selection is invalid.
My approach assumes that the application is running in MVC and the array is passed in ViewData. But this can be changed to suit your environment.
My approach:
var validSelect, isSelected;
$("#staton").kendoAutoComplete({
minLength: 2,
filter: "startswith",
dataTextField: "name",
filtering: function(e) {
validSelect = false;
dataArr = #Html.Raw(Json.Encode(ViewData["allStatons"]));
// for loop within the ViewData array to find for matching ID
for (var i = 0; i < dataArr .length; i++){
if (dataArr[i].ID.toString().match("^" + $("#staton").val())) {
validSelect = true;
break;
}
}
// if value entered was not found in array - clear input
if (!validSelect) $("#staton").val("");
},
select: function(e){
isSelected = true;
},
close: function(e){
// if selection is invalid or not selected from the list - clear input
if (!validSelect || !isSelected) $("#staton").val("");
},
dataSource: datasource
});
As you can see, this approach requires the array from the server side on load so that it can match during the filtering event of the widget.
I found this on Telerik's site by just using the change event. For me this works best. I added the "value === ''" check. This will catch when the user "clears" the selection.
Here's the link to the full article.
$("#countries").kendoAutoComplete({
dataSource: data,
filter: "startswith",
placeholder: "Select country...",
change: function() {
var value = this.value();
if (value === '') return;
var found = false;
var data = this.dataSource.view();
for(var idx = 0, length = data.length; idx < length; idx++) {
if (data[idx] === value) {
found = true;
break;
}
}
if (!found) {
this.value("");
alert("Custom values are not allowed");
}
}
});
In my AutoComplete Change event I check for a selected item and clear the cell if not selected.
function myAutoComplete_OnChange(e)
{
if (this.dataItem())
{
// Don't use filtered value as display, instead use this value.
e.sender.element[0].value = this.dataItem().WidgetNumber;
}
else
{
var grid = $("#grid").data("kendoGrid");
grid.dataItems()[grid.select().index()].WidgetKey = null;
grid.dataItems()[grid.select().index()].WidgetNumber = null;
}
}

In jqGrid do I have to manually call saveRow to trigger an ajax save request?

The documentation here is not very clear:
http://www.trirand.com/jqgridwiki/doku.php?id=wiki:inline_editing&s[]=editurl#saverow
Do I have to manually make a saveRow call after the user finishes editing a table cell/row, or will jqGrid automatically trigger saveRow when the row (cell?) loses focus?
I'm giving jqGrid a editurl value in the initial setup, but I don't see any ajax requests going out when I finish editing a row.
You have two options:
You use editRow with the parameter keys: true. In the case the method saveRow will be called if the user press Enter and the method restoreRow will be called if the user press Esc. In the case you don't need to call saveRow explicitly. Inside of onSelectRow one calls typically restoreRow see here an example.
You can call saveRow instead of restoreRow in the onSelectRow callback. Additionally (or alternatively) you can gives the user an interface to save current editing row. It can be some kind of "Save" button.
Although that's an old question, I'd like to add an example of explicitly calling editRow and then saveRow, which is a pretty frequent case.
The following code allows the user to just move freely between selected rows, and save the previous selected, edited row:
var grid = $('#gridName').jqGrid({
// ... some grid properties ...
editurl: 'clientArray',
cellEdit: false, // that's the default, but just to make clear that wer'e in inline edit mode
onSelectRow: utils.onSelectRow
// ... some more grid properties ...
});
var utils = {
prevRowId: null, // we have to keep the previous row id
onSelectRow: function (rowId, selectionStatus, event) {
if (rowId && rowId !== utils.prevRowId) {
var $grid = $(event.target).closest('table');
$grid.jqGrid('saveRow', utils.prevRowId);
$grid.jqGrid('editRow', rowId, { keys: true });
utils.prevRowId = rowId;
}
},
};
I couldn't find one of Oleg's official examples doing exactly this (they're all using buttons, as this one, or calling retrieveRow instead of saveRow, as this one).

JQGrid - toggling multiselect

Is there a way to toggle the multiselect option of a grid?
Changing the multiselect parameter of the grid and calling for a reload has the side-effect of leaving the header behind when disabling or not creating the header column if multiselect was not TRUE upon the grid creation.
The closest I have come is setting multiselect to TRUE upon grid creation and using showCol and hideCol to toggle: $('#grid').showCol("cb").trigger('reloadGrid');
This has a side effect of changing the grid width when toggled. It appears the cb column width is reserved when it is not hidden.
Basically I'm attempting to create a grid with an "edit/cancel" button to toggle the multiselect -- very similar to how the iPhone/iPad handles deleting multiple mail or text messages.
Thank you in advance.
I full agree with Justin that jqGrid don't support toggling of multiselect parameter dynamically. So +1 to his answer in any way. I agree, that the simplest and the only supported way to toggle multiselect parameter will be connected with re-initialize (re-creating) the grid.
So if you need to change the value of multiselect parameter of jqGrid you need first change multiselect parameter with respect of respect setGridParam and then re-creating the grid with respect of GridUnload method for example. See the demo from the answer.
Nevertheless I find your question very interesting (+1 for you too). It's a little sport task at least to try to implement the behavior.
Some remarks for the understanding the complexity of the problem. During filling of the body of the grid jqGrid code calculate positions of the cells based on the value of multiselect parameter (see setting of gi value here and usage it later, here for example). So if you will hide the column 'cb', which hold the checkboxes, the cell position will be calculated wrong. The grid will be filled correctly only if either the column 'cb' not exists at all or if you have multiselect: true. So you have to set multiselect: true before paging or sorting of the grid if the column 'cb' exist in the grid. Even for hidden column 'cb' you have to set multiselect to true. On the other side you have to set multiselect to the value which corresponds the real behavior which you need directly after filling of the grid (for example in the loadComplete).
I hope I express me clear inspite of my bad English. To be sure that all understand me correctly I repeat the same one more time. If you want try to toggle multiselect dynamically you have to do the following steps:
create grid in any way with multiselect: true to have 'cb' column
set multiselect: false and hide 'cb' column in the loadComplete if you want to have single select behavior
set multiselect: true always before refreshing the grid: before paging, sorting, filtering, reloading and so on.
I created the demo which seems to work. It has the button which can be used to toggle multiselect parameter:
In the demo I used the trick with subclassing (overwriting of the original event handle) of reloadGrid event which I described the old answer.
The most important parts of the code from the demo you will find below:
var events, originalReloadGrid, $grid = $("#list"), multiselect = false,
enableMultiselect = function (isEnable) {
$(this).jqGrid('setGridParam', {multiselect: (isEnable ? true : false)});
};
$grid.jqGrid({
// ... some parameters
multiselect: true,
onPaging: function () {
enableMultiselect.call(this, true);
},
onSortCol: function () {
enableMultiselect.call(this, true);
},
loadComplete: function () {
if (!multiselect) {
$(this).jqGrid('hideCol', 'cb');
} else {
$(this).jqGrid('showCol', 'cb');
}
enableMultiselect.call(this, multiselect);
}
});
$grid.jqGrid('navGrid', '#pager', {add: false, edit: false, del: false}, {}, {}, {},
{multipleSearch: true, multipleGroup: true, closeOnEscape: true, showQuery: true, closeAfterSearch: true});
events = $grid.data("events"); // read all events bound to
// Verify that one reloadGrid event hanler is set. It should be set
if (events && events.reloadGrid && events.reloadGrid.length === 1) {
originalReloadGrid = events.reloadGrid[0].handler; // save old
$grid.unbind('reloadGrid');
$grid.bind('reloadGrid', function (e, opts) {
enableMultiselect.call(this, true);
originalReloadGrid.call(this, e, opts);
});
}
$("#multi").button().click(function () {
var $this = $(this);
multiselect = $this.is(":checked");
$this.button("option", "label", multiselect ?
"To use single select click here" :
"To use multiselect click here");
enableMultiselect.call($grid[0], true);
$grid.trigger("reloadGrid");
});
UPDATED: In case of usage jQuery in version 1.8 or higher one have to change the line events = $grid.data("events"); to events = $._data($grid[0], "events");. One can find the modified demo here.
I really like what you are trying to do here, and think it would be a great enhancement for jqGrid, but unfortunately this is not officially supported. In the jqGrid documentation under Documentation | Options | multiselect you can see the Can be changed? column for multiselect reads:
No. see HOWTO
It would be nice if there was a link or more information about that HOWTO. Anyway, this is probably why you are running into all of the weird behavior. You may be able to work around it if you try hard enough - if so, please consider posting your solution here.
Alternatively, perhaps you could re-initialize the grid in place and change it from/to a multi-select grid? Not an ideal solution because the user will have to wait longer for the grid to be set up, but this is probably the quickest solution.
A simpler answer:
<input type="button" value="Multiselect" onclick="toggle_multiselect()">
<script>
function toggle_multiselect()
{
if ($('#list1 .cbox:visible').length > 0)
{
$('#list1').jqGrid('hideCol', 'cb');
jQuery('.jqgrow').click(function(){ jQuery('#list1').jqGrid('resetSelection'); this.checked = true; });
}
else
{
$('#list1').jqGrid('showCol', 'cb');
jQuery('.jqgrow').unbind('click');
}
}
</script>
Where list1 is from <table id="list1"></table>.

while the select editoption posts the value (or id) of the selected list item, autocomplete posts the label - i need id posted

While both autocomplete and select in jqgrid editform place the selected label into the cell, select will place the value (id) in the postdata array where autocomplete will place the label into the postdata array.
is there a way to get the editoption's autocomplete to post the item value (id) instead of the label?
here is the jqgrid code segment i'm using autocomplete in...
$('#tab3-grid').jqGrid({
colNames:['Workorder', 'wo.CUID',.....],
colModel:[
.
.
.
{name:'wo.CUID', index:'cu.LastName', width:120, fixed:true, align:'center', sortable:true, editable:true, edittype:'text',
editoptions:{dataInit:function(el){$(el).autocomplete({ source: 'php/customer-ac-script.php'
, minLength: 1
})
}
},
formoptions:{rowpos: 1, label:'Customer', elmprefix:'* '},
editrules:{required:true}
},
.
.
.
$('#tab3-grid').jqGrid('navGrid', '#tab3-pager',
{view:true, closeOnEscape:true, cloneToTop:true}, // general parameters that apply to all navigation options below.
{jqModal:true, navkeys:[true,38,40], savekey:[true,13]}, // edit options.
{jqModal:true, navkeys:[true,38,40], savekey:[true,13], reloadAfterSubmit:false, afterSubmit: addRecordID}, // add options.
{jqModal:true, afterSubmit: serverMessage}, // del options.
{jqModal:true}, // search options.
{jqModal:true, navkeys:[true,38,40]} // view options.
);
The php code segment:
// construct autocomplete select.
$i = 0;
while($row = mysql_fetch_assoc($result)) {
$output[$i][$crudConfig['id']] = $row['CUID'];
$output[$i][$crudConfig['value']] = $row['LastName'];
logMsg(__LINE__,'I','cu.CUID: '.$row['CUID'].', cu.LastName: '.$row['LastName']);
$i++;
}
// encode to json format and send output back to jqGrid table.
echo json_encode($output);
logMsg(__LINE__,'I','Send json output back to jqGrid table: '.json_encode($output));
Would it be as simple as calling a function under the autocomplete select event or the grid before or after editform submit?
Also, i noticed this note in the jqgrid doc's for datainit: that says...
Note: Some plugins require the position of the element in the DOM and
since this event is raised before inserting the element into the DOM
you can use a setTimeout function to accomplish the desired action.
Would the lack of including the settimeout function be causing the problem?
The server code which provide the JSON response on the autocomplete request has id and value properties. On the other side the standard behavior of jQuery UI Autocomplete is to use label and value properties (see "Datamodel" in the documentation). The value of label property (if any exist) will be used to display in the contextmenu. The value of value property will be placed in the <input> field after the user choose the item from the contextmenu. The value of label property can has HTML markup, but the value of value property must be the text.
So I see the problem as pure problem of the usage of jQuery UI Autocomplete independent on jqGrid. If I understand correct your question you can solve your problem by modification your server side code.
Oleg's answer clarifying the data model for jquery UI's autocomplete, has allowed me to move forward and understand that autocomplete has nothing to do with constructing and sending the postdata array to the server, jqgrid's editform handles it. With that knowledge, i was able to answer my original question and successfully integrate autocomplete into jqgrid. So, in the interest of sharing, i'd like to show you all my motivation and solution.
By default, selecting a label from the autocomplete list put's the value of the selected label/value pair into the text box. All the editform cares about when you submit is what's in the edit fields. So when you submit the editform, the cell's postdata element value will again contain the value of the autocomplete text box. But what if while wanting to post the value of the label/value pair, you want the label of the label/value pair displayed in the text box? You have a problem! How do you get the value of the label/value pair posted to the server?
Well, after spending a few days on it, it turns out to be quite simply. While i'm sure there is more than one solution, here is mine:
add a hidden id column in the grid
define the select: and focus: events in the autocomplete function
in the select: function; insert the selected label into the text box (optional), disable the default behavior of autocomplete, then set the cell of the hidden column to the value of the selected label/value pair
in the focus: function; insert the selected label into the text box(optional), disable the default behavior of autocomplete
add an "onclickSubmit:" event to the navgrid edit options with function name something like "fixpostdata"
in the "fixpostdata" function; get the cell value of the hidden column and insert it into the postdata element associated with the cell.
The following are the grid and javascript code segments i used…
grid segments
{name:'wo_CUID', index:'wo_CUID', width: 70, hidden: true},
{name:'wo.CUID', index:'cu.LastName', width:120, sortable:true, editable:true, edittype:'text',
editoptions:{
dataInit:function(el){ // el contains the id of the edit form input text box.
$(el).autocomplete({
source: 'php/customer-ac-script.php',
minLength: 1,
select: function(event, ui){event.preventDefault();
$(el).val(ui.item.label);
var rowid = $('#tab3-grid').getGridParam('selrow');
// set the hidden wo_CUID cell with selected value of the selected label.
$('#tab3-grid').jqGrid('setCell', rowid,'wo_CUID',ui.item.value);},
focus: function(event, ui) {event.preventDefault();
$(el).val(ui.item.label);}
})
}
},
formoptions:{rowpos: 1, label:'Customer', elmprefix:'* '},
editrules:{required:true}
},
.
.
$('#tab3-grid').jqGrid('navGrid', '#tab3-pager',
{view:true, closeOnEscape:true, cloneToTop:true},
{jqModal:true, navkeys:[false,38,40], onclickSubmit: fixpostdata}, // edit options.
.
.
javascript function
// define handler function for 'onclickSubmit' event.
var fixpostdata = function(params, postdata){
var rowid = $('#tab3-grid').getGridParam('selrow');
var value = $('#tab3-grid').jqGrid('getCell', rowid,'wo_CUID');
postdata['wo.CUID'] = value;
return;
}
The fixpostdata function fires when you submit the editform but befor the postdata array is sent to the server. At this point you replace the cell's postdata element value with whatever you want. In this case, the value of the label/value pair stored in the hidden column cell. When the function returns, the modified postdata array is sent to the server.
Done!

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