I'm using Kendo grid for my tables, and I want to filter on categories in addition to the actual values.
For example, imagine the column has the integer values 1-10. By default, I can client-side-filter on any of those values, and I want to keep that. However, I want to add the evens, the odds, and the prime numbers to my filter options.
Is there a way to do that?
My answer is untested and only a theory but the grid does have a filterMenuInit event that will allow you to modify the content of the filter dropdown displayed to the user. You'll be able to add or modify some of the values created by the grid.
The next thing you'll have to do is the override the datasource's filter function to handle the your special values:
grid.dataSource.filter = function() {
//Apply your odd / even filter logic here using the this keyword
var result = this.yourfilterLogicHere();
//Make sure to return the expected format
return result;
}
Related
I'm very new to writing script for Google Sheets, and I'm attempting to create a spreadsheet that will only display a dropdown in a column ("Provisional Notes") if the value in a column ("Certified or Provisional" is "Provisional." If it is "Certified," the user is be able to enter data freely. I'm also wanting to remove the validation if the value changes from "Provisional". I also need the solution to run on the Google Sheets App, as this spreadsheet will be run on an iPad and/or a smartphone.
I've done quite a bit of searching, and only seem to find dropdowns that depend on other dropdowns, rather than leaving a cell blank if the initial dropdown is a certain value.
What I have come up with so far only runs once (even though I've attempted to have it occur on every edit?) Also, if the value changes from Provisional to Certified, the validation does not get removed.
For my practice, I've applied it to only 2 specific cells, rather than the entire 2 columns.
function onEdit2(e){
var dropdownCell = SpreadsheetApp.getActive().getRange('P2');
var certCell = SpreadsheetApp.getActive().getRange('J2');
var rule = SpreadsheetApp.newDataValidation().requireValueInList(['Test 1', 'Test 2'], true).build();
function insertDropdown(){
if(e.certCell.getValue() === "P"){
dropdownCell.setDataValidation(rule);
}
}
}
I greatly appreciate all suggestions!
To delete a data validation you just need to use the method setDataValidation() and set its value to null to delete the data validation present on that cell.
In the following code example, depending on the value inserted I am adding or deleting the data validation. This code example has self explanatory comments:
function onEdit(e) {
// get sheet
var sheet = SpreadsheetApp.getActive().getSheetByName('Sheet1');
// if modifications happen in A
if(e.range.getColumn()==1){
// check inserted value
if(e.range.getValue()=='Provisional'){
// create rule from a list range and set it to the same row in column B
var rule = SpreadsheetApp.newDataValidation().requireValueInList(['A','B']).setAllowInvalid(false).build();
sheet.getRange(e.range.getRow(),2).setDataValidation(rule);
}
// if it is set to certified
if(e.range.getValue()=='Certified'){
// delete any data validation that may have been in its adjacent cell
sheet.getRange(e.range.getRow(),2).setDataValidation(null);
}
}
}
So what I'm trying to accomplish is when the grid is fully loaded, I loop over a certain column that contains checkboxes. Depending on the value of the checkbox I should be able to disable it.
Problem is that I can't access the html element that's there. Am i doing something wrong or overlooking something?
What i've tried:
loadComplete: function() {
// Fetch all the ID's of the rows
var rows = $("#table").getDataIDs();
// Loop over the rows
if(rows.length != 0){
for(i=0; i < rows.length; i++) {
// Get the data so we test on a certain condition
var row = $("#table").jqGrid("getRowData", rows[i]);
if (row.gridCheckbox == 1) {
//disable the element
row.prop("disabled", "disabled");
}
}
}
}
It's important to understand that changing one element on the page follow in the most cases to web browser reflow: validation whether some property (position for example) need be changed in all other elements on the page. If you do changes in the loop then your JavaScript code can be really slow.
Thus it's strictly recommended to reduce the number of changes of the DOM. Especially to reduce the number of changes jqGrid provides rowattr, cellattr and custom formatters. If you need for example to set disabled attribute on some rows then you should now do this in loadComplete, but to use rowattr instead to inform jqGrid that some additional attributes (disabled="disabled") should be set on some rows. jqGrid collect first the string representation of the whole table body and it use one assignment of innerHTML to fill the whole body of the grid in one DOM operation. It improves essentially the performance. See code example in the old answer.
I have a grid with several columns, most of which have values selectable from a given set. (i.e. they are shown as dropdown boxes when inserting/updating.) I want to enable filtering, but not necessarily on all columns at once. So I tried adding an empty option for each column, but this means it also shows up in the dropdown for insert/update, which is not what I want.
So how should I solve this? Do I need to override one or more of the row renderer functions?
You can redefine filterTemplate of the column like the following:
filterTemplate: function() {
var $select = jsGrid.fields.select.prototype.filterTemplate.call(this);
$select.prepend($("<option>").prop("value", "0").text("(All)"));
return $select;
}
Here is the working fiddle http://jsfiddle.net/tabalinas/g68ofLs1/
Is there any way i can hide HOT columns from javascript?
The requirement is such that the column to hide will come as a parameter in javascript and based on that the respective column will show hide accordingly.
The HOT has rowHeaders and colHeaders and the data with 20 columns.
Please advise.
OUTDATED SOLUTION
Ok I founnd a possible solution. I tested it out on my own system but it's actually quite simple.
You should be using a customRenderer in your columns option. Read up about this if you aren't already. The idea is that you're giving each cell its own renderer. In this custom function, you can do something like this:
var colsToHide = [3,4,6]; // hide the fourth, fifth, and seventh columns
function getCustomRenderer() {
return function(instance, td, row, col, prop, value, cellProperties) {
if (colsToHide.indexOf(col) > -1) {
td.hidden = true;
} else {
td.hidden = false;
}
}
}
What this renderer does is hide the cells that the var colsToHide specify. All you do now is add a DOM element that lets the user pick which and so every time the table gets rendered (which happens basically after any change, or manually triggered need be), the cells in the columns specified will be hidden, keeping the data array intact like you described. And when not in colsToHide they are re-rendered so make sure you get that working as well.
Here I implemented it with very basic functionality. Just enter the index of a column into the input fields and watch the magic happen.
http://jsfiddle.net/zekedroid/LkLkd405/2/
Better Solution: handsontable: hide some columns without changing data array/object
I need the ability to add a random amount of subgrids to a jqgrid. Basically the subgrid is idential to the parent jqgrid apart from having their column headings hidden. Is there a way where I can define the grid once in say a js file method and have the grid id and data url passed in as a parameter and then append different versions of itself into its subGridRowExpand after its defined. It just seems very laborious to have to define multiple versions of the same jqgrid one inside the other.
Could I do something like
var i = 0;
var maxsubgrids = 5;
function CreateGrid(gridId, dataUrl) {
$(gridId).grid(
...... Grid definition
subGridRowExpand: function(subgrid_id, row_id) {
if (subgridcount < maxsubgrids){
CreateGrid('#subgridId' + i++, subgridDataURL);
}
}
......... continue with grid definition
}
I know the above isn't correct but just an idea, but I think it would be better if the grid could be just created once in a method and then find a way to insert the subGridRowExpand section afterwards. Is this even possible?
You should consider to use TreeGrid instead of Subgrids. It's important to understand that subitems of TreeGrid have always the same number of columns like it's parent elements. So I suppose it corresponds to requirements which you have. Of extending of tree node nodeid, parentid and n_level will be automatically added to the list of parameters of the URL (see the documentation).