Selecting multiple random rows in handsontable - javascript

I am using handsontable in my project. Selection of continous rows i.e using shift key to select multiple continous rows is working fine, but when i am trying to select random rows using control key it is not working. I have been told that there is no way to select multiple random rows in handsontable.
We are initializing handson constructor in the following way :-
$element.handsontable({
columns:$scope.handsontable.columns,
data: $scope.handsontable.data,
colHeaders: $scope.handsontable.columnHeaders,
colWidths:$scope.handsontable.columnWidths,
readOnly:$scope.handsontable.readOnly,
fillHandle: false,
**currentRowClassName: 'currentRow',
currentColClassName: 'currentCol',**
variableRowHeights : false,
cells: function () {
this.renderer = $scope.gridConfiguration;
}
});
.css class for handson "currentRowClassName" and "currentColClassName" are provided as :-
.handsontable .currentRow {
background-color: #66A3FF !important;
}
.handsontable .currentCol {
background-color: #F9F9FB;
}
When looking into handsontable.js i found the following if block :-
if (priv.settings.currentRowClassName || priv.settings.currentColClassName) {
instance.view.wt.selections.highlight.clear();
instance.view.wt.selections.highlight.add(priv.selRange.from);
instance.view.wt.selections.highlight.add(priv.selRange.to);
}
i tried commenting out its first line( instance.view.wt.selections.highlight.clear();) so that the selection does not get cleared but even this not working.
Please help me with selection of random(not necessarily continuous) rows using handsontable. Thanks
and tried changing it but nothing worked

I don't think HOT supports this sort of selection but you may be able to use some DOM manipulations to achieve it. What you can try is creating a .beforeMouseDown event where if the ctrl key and nothing else is selected, you append to some array the cell that you are currently on.
Then look through the source code to where this same thing is done for Shift. My guess is that it says that when Shift is held down, set SelectedCells to all cells between start and end of the selections. You just need to change it to ONLY start and end, not things in between.

Related

Hide or Collapse a single specific row in ag-grid using Javascript

After a lot of search in SO without any particular solution, I am compelled to ask this question.
In Simple words - I want to collapse or hide a specific row using Javascript in ag-grid. I have tried several methods explained in ag-grid documentation and also in SO, but none has worked till now.
All the following methods have been tried and none of the codes worked.
Let rowNode = gridOptions.api.getRowNode(params.value);
Method #1. params.api.getDisplayedRowAtIndex(2).setExpanded(false);
Method #2. params.api.getRowNode(params.value).setExpanded(false);
Method #3. gridOptions.api.setRowNodeExpanded(rowNode,false);
Method #4. gridOptions.api.getRowNode(rowId).style.visibility = "collapse";
I have also tried using plain CSS, like this - Data has disappeared but the white blank row is visible
rowNode.setDataValue('class', 'hidden'); //Where “class” is a field
const gridOptions = {
//Other grid options...
getRowClass: params => {
if (params.data.class === "hidden") {
return 'hidden';
}
},
https://stackblitz.com/edit/js-nvtqhz?file=infoCellRenderer.js
setExpand / setRowNode Expanded only works on collapsible rows, i.e it will collapse an expanded row. it will not hide it.
I edited your stackblitz,
I made a couple of changes to make it work.
Selectable Rows
So, when you click a row, I'm marking it as selected. There is a property on ag-grid rowSelection: 'single' | 'multiple. If you want to hide only one row at a time, use 'single' if you can hide multiple rows use 'multiple'
External filtering
So, ag grid can filters rows if we provide a criteria.It can be a check on any of data property as well. For your problem, I have added a filter that says if any row is selected, remove it from the grid.
Following are the changes
/// method called on clicking the button
function hideRow(params) {
let rowNode = gridOptions.api.getRowNode(params.value); // get the clicked row
rowNode.setSelected(true); //mark as selected
gridOptions.api.onFilterChanged(); // trigger filter change
}
Triggering the filter change will call this method for each row
function doesExternalFilterPass(node) {
return !node.selected; // if row node is selected dont show it on grid.
}
You can access the rows hidden any time using
gridOptions.api.getSelectedRows() //Returns an array of data from the selected rows. OR
gridOptions.api.getSelectedNodes() //Returns an array of the selected nodes.
And, if you want to show a row again, just filter from this above mentioned method and do these steps
rowNode.setSelected(false); //mark as unselected
gridOptions.api.onFilterChanged(); // trigger filter change
This will automatically show the row on grid.
Hope this helps! :)

Color cell according to condition

I have a table in which I have to set background color when the cell in header and cell in row appear as pair in a certain list in data source.
For example:
column : "AUD, USD"
row : "BRL, CZK"
in the cell of column AUD and row is BRL I check if exists in the list in datasource "AUD-BRL" and if so I need to color in a green
Now, I thought to do it in this way:
columns and rows will be in lists.
I go over both lists and then color in those indexes the cell.
So that I will have one function for whole table and not have to call from each cell to function (There are 1200 cells overall).
How can that be done?
The answer from Fede MG is correct.
If I understand your question correctly, you want to add a highlighting rule to all cells in the table detail row. Unfortunately I think it is a bit cumbersome to achieve this in BIRT.
I assume that your table has e.g. bindings like COL_VALUE_1, ..., COL_VALUE_9 for the cell values and COL_TITLE_1, ..., COL_TITLE_9 for the column headers.
Furthermore I assume a bit of experience with using Javascript in BIRT.
The way I do this like this:
For each detail cell I create a onCreate event script with code like this:
highlightDetailCell(this, row, 1);
... where 1 is the column number. E.g. this is the code for the first column, for the second column i replace the 1 with 2 and so on. One can quickly do this with copy&paste.
Next I implement the logic in a function inside the onInitialize script of the report like this:
function highlightDetailCell(item, row, colnum) {
var colTitle = row["COL_TITLE_" + colnum];
var colValue = row["COL_VALUE_" + colnum];
var highlight = use_your_logic_to_decide(colTitle, colValue);
if (highlight) {
item.get_Style().backgroundColor = "yellow";
}
}
This is the basic idea. If you want to add the script to many cells, it might be a lot of work to do this by hand. In fact it is possible to attach the call to the highlightDetailCell function with a script (of course, this is BIRT :-). You should read the documentation and just tinker with the Design Engine API (DE API for short).
But be warned that writing and debugging such a script may be even more work than doing the donkey work of adding and editing a one-liner to 1200 cells!
What I once did was basically this (in the onFactory event of the report item):
// This code is a simplified version that modifies just the first cell,
// However it should point you into the right direction.
// Some preparation
importPackage(Packages.org.eclipse.birt.report.model.api);
var myconfig = reportContext.getReportRunnable().getReportEngine().getConfig();
var de = DataEngine.newDataEngine( myconfig, null );
var elementFactory = reportContext.getDesignHandle().getElementFactory();
// Find the item you want to modify (in my case, a "Grid Item").
// Note that for tables, the structure is probably a bit different.
// E.G. tables have header, detail and footer rows,
// while grids just have rows.
var containerGrid = reportContext.getDesignHandle().findElement("Layout MATRIX");
// Get the first row
var row0 = containerGrid.getRows().get(0);
// Do something with the first cell (:
var cell = row0.getCells().get(0).getContent();
cell.setStringProperty("paddingTop", "1pt");
cell.setStringProperty("paddingLeft", "1pt");
cell.setStringProperty("paddingRight", "1pt");
cell.setStringProperty("paddingBottom", "1pt");
cell.setStringProperty("borderBottomColor", "#000000");
cell.setStringProperty("borderBottomStyle", "solid");
cell.setStringProperty("borderBottomWidth", "thin");
cell.setStringProperty("borderTopColor", "#000000");
cell.setStringProperty("borderTopStyle", "solid");
cell.setStringProperty("borderTopWidth", "thin");
cell.setStringProperty("borderLeftColor", "#000000");
cell.setStringProperty("borderLeftStyle", "solid");
cell.setStringProperty("borderLeftWidth", "thin");
cell.setStringProperty("borderRightColor", "#000000");
cell.setStringProperty("borderRightStyle", "solid");
cell.setStringProperty("borderRightWidth", "thin");
// When you're finished:
de.shutdown( );
Things are more complicated if you have to handle merged cells.
You could even add content to the cell (I created a whole matrix dynamically this way).
The script does not exactly what you want (add the script to each cell), but I leave this as an exercise...
It is also helpful to save the dynamically modified report design for opening in the designer, to see the outcome:
reportContext.getDesignHandle().saveAs("c:/temp/modified_report.rptdesign");
HTH
Go to the cell you want to format (applies also to elements like rows or columns), on the "Property Editor" go to "Highlights" and click "Add...". You'll get a dialog where you can enter a condition for the highlight and what styling to apply on the element if the condition is true.
Screenshot here

Jquery in loop to perform some calculation of records

Iam trying to bring some records using php and do some calculations. What iam doing now is that, each rows is having a dropdown with different currencies. When i select each currency, it calculates and shows certain values. Till here its working fine.
What i am trying to achieve is that if i select first currency dropdown, it should calculate the complete records calculations instead of selecting the currency of each rows. I guess i need to do some kind of loop in the jquery which calculates the rows.
Fiddle
Following is the part of jquery script for the currency dropdown.
$(window).load(function() {
$(document).ready(function() {
$("select").on('change', function() {
var dept_number = $(this).val();
var price = $(this).find(':selected').data('price');
var selected = $(this).find('option:selected').text();
if (selected == "INR") {
$(this).closest('table').find('.total1').val($(this).closest('table').find('.total').val());
} else {
$(this).closest('table').find('.total1').val((($(this).closest('table').find('.total').val() * price) / $(this).closest('table').find('.inrvalue').val()).toFixed(3));
}
$(this).closest('table').find('.price_unit').val(($(this).closest('table').find('.total1').val() / $(this).closest('table').find('.qty').val()).toFixed(3));
});
});
});
i guess i need to add some loops here in this jquery. Anyone to guide me how to do this. Or i need to follow a different step.
This is what i have tried as per the suggestion from Leonix.
$(document).ready(function(){
$(this).closest('table').find("select").each(function() {
var dept_number = $(this).val();
var price = $(this).find(':selected').data('price');
var selected = $(this).find("select");
if(selected=="INR")
{
$(this).closest('table').find('.total1').val($(this).closest('table').find('.total').val());
} else
{
$(this).closest('table').find('.total1').val((($(this).closest('table').find('.total').val() * price) / $(this).closest('table').find('.inrvalue').val()).toFixed(3));
}
$(this).closest('table').find('.price_unit').val(($(this).closest('table').find('.total1').val()/$(this).closest('table').find('.qty').val()).toFixed(3));
});
});
In your select change function, do a each for all rows of your table and find the dropdown:
$(this).closest('table').find("select").each(function() {
/* Each SELECT here, use $(this) */
})
or, depending of your needs :
$(this).closest('table').find("select").each(function() {
/* Each TR here, use selectInput */
var selectInput = $(this).find("select");
})
With the select in hands, use selectInput.val(changedSelectInput.val())
changedSelectInput is the jquery object containing the select who changed.
Using nested anonymous functions, take care, they are executed in the object context, so this and $(this) change depending on the object affected by function.
Advice: Use specific css classes for JS, as select.select-currency instead of select only, put these classes in your code. it will prevent so many mistakes and will save your time.
Note: currency_change[] is not a valid ID, if you dont need to set one, dont.
EDIT
Some code: https://jsfiddle.net/btpxq5ow/6/
What I did ?
Fix tags issues
Fix input in tbody issues, NEVER put it in a tr, tbody, table directly.
Fix some indentation issues
Apply the currency change to all rows
Prevent change event to call itself in an infinite loop
Apply calculation to all rows when they are updated
Fix some code syntax & performance issues
Please check your calculation are right since i modified it, see calculateRowTotals().
There are still a few html/js errorsthat must be fixed.
You will rarely get code from stackoverflow

Sencha ExtJS 4.2: how can I synchronize two combo editors in a grid?

I need to edit two columns of my grid using combos as editors, and I need the values shown in the second to be filtered accordingly to the value selected in the first one.
There is also the problem that I need to show the "bound" value (i.e. "description") instead of the Id, in the grid cell.
I prepared a (very simplified) fiddle to show the problem here
Click here for the fiddle
Looking at the fiddle, I'd need to select the brand in the first combo and then a model in the second, but I should obviously find only the models from the selected brand in there.
How can I show the descriptive text in the cell?
How can I filter the second combo?
Thanks
The editing plugin has an beforeedit event you can use, for example:
listeners: {
beforeedit: function(editor, context) {
var record = context.record;
if (context.field !== 'modelId') {
return;
}
models.clearFilter(true);
models.filter({
property: 'brandId',
value: record.getId()
});
}
}
Working example: https://fiddle.sencha.com/#fiddle/12hn

JS/JQUERY: Moving numbered table rows up and down without losing user input

I have created a table in HTML, consisting of table rows in a tbody tag.
I've used a javascript code snippet from mredkj.com to be able to add rows and delete them, too. The rows are sorted and their rank is in the first TD (cell) in every TR (row).
Now I would like the add the functionality of being able to manually 'resort' the tablerows.
The problems are:
my javascript/jquery knowledge is
very limited
the ranks of tablerows
do not get updated(when you delete a row, the
rowranks get updated by the
'reorderRows function, but calling this function from within my jQuery does not seem to
sort out the problem)
the user's input in textarea's gets erased as soon as up or down button is clicked.
For example: user adds a TR, that gets added at the bottom of the current list of tablerows, fills in the textarea and desides that the row (s)he filled should be ranked first, so she clicks the up arrow a couple of times, until it's on top.
The rank of the row is now #1 and the input is still in the textarea's.
My questions are:
Does anyone know how I can make the
rows update their ranking when the
user moves the row?
How do I maintain the user's input?
Any help is very much appreciated and if you have any other suggestions, please share them.
Code here: http://jsbin.com/eyefu5/edit - for some reason, the moving up and down doesn't work in js bin, it does however when I run it in my browser.
I updated your code to do what I think you were trying to do: http://jsbin.com/eyefu5/9/
My primary changes were to the following swap logic:
function swap(a, b){
b.before(a);
reorderRows(document.getElementById(TABLE_NAME), 0);
}
function getParent(cell){ return $(cell).parent('tr'); }
$('#diagnosetabel').on('click', '.upArrow', function(){
var parent = getParent(this);
var prev = parent.prev('tr');
if(prev.length == 1){ swap(parent, prev); }
});
$('#diagnosetabel').on('click', '.downArrow', function(){
var parent = getParent(this);
var next = parent.next('tr');
if(next.length == 1){ swap(next, parent); }
});
The biggest difference is that I switched the swap code to using jQuery's before method, which should take care of just about everything for you. I also added a call to the reorderRows method which you were already using. At the moment it starts at the beginning and reorders all the numbers after the swap, but you could narrow this down as needed because you know the only two rows which were modified.
Hope that helps!

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