Most frequently asked questions and answers
1. Jspreadsheet converts a string to a number.
This is because autoCasting is set as default. It tries to improve the calculations by converting a string to a number. Solution: set autoCasting: false as a property in the column definitions.
columns: [{
type:'text', autoCasting: false
}]
2. What is the best way to create odd/even rows in an online spreadsheets?
Solution: Add the following CSS code to your project.
.jss tbody tr:nth-child(even) {
background-color: #EEE9F1 !important;
}
3. How do I transform multiple HTML static tables to dynamic Jspreadsheet tables?
let tables = document.querySelectorAll('table');
for (let i = 0; i < tables.length; i++) {
jspreadsheet(tables[i]);
}
4. How do I disable paste over a JSS spreadsheet?
<script>
jspreadsheet(document.getElementById('spreadsheet'), {
worksheets: [{
minDimensions: [6,6],
}],
onbeforepaste: function(instance, data, x, y) {
return false;
}
});
</script>
5. How can I intercept and change a pasted string over a JSS spreadsheet?
<script>
jspreadsheet(document.getElementById('spreadsheet'), {
worksheets: [{
minDimensions: [6,6],
}],
onbeforepaste: function(instance, data, x, y) {
data = data.replace(',', '.', data);
return data;
}
});
</script>
6. How do I overwrite a type of a cell over a column type?
<script>
jspreadsheet(document.getElementById('spreadsheet'), {
worksheets: [{
columns: [
{ type: 'text' },
{ type: 'text' },
],
cells: {
B2: { type:'number', mask:'$ #,##0.00', decimal:'.' },
B3: { type:'percent' },
}
}
});
</script>
NOTE: Only available from Jspreadsheet Pro v7.
7. How do I disabled the JavaScript contextmenu in my spreadsheet?
<script>
jspreadsheet(document.getElementById('spreadsheet'), {
worksheets: [{
columns: [
{ type: 'text' },
{ type: 'text' },
],
cells: {
B2: { type:'number', mask:'$ #,##0.00', decimal:'.' },
B3: { type:'percent' },
}
},
contextMenu: function() {
return false;
}
});
</script>
8. How do I change the default download filename?
<script>
jspreadsheet(document.getElementById('spreadsheet'), {
worksheets: [{
minDimensions: [6,6],
}],
csvFileName: 'yourname'
});
</script>
9. How do I add an external action without losing the spreadsheet focus?
Working example:
https://jsfiddle.net/spreadsheet/v5tbxg01/
10. How do I keep the selection in the spreadsheet when clicking on an element outside the sheet?
Add a class to the external element: jss_object
https://jsfiddle.net/spreadsheet/rg1tdh0z/
11. How do I automatic align numbers to the right using JSS spreadsheet?
Working example:
https://jsfiddle.net/spreadsheet/Lfxm6qw1/
12. How do I automatic add unique ID to the cells?
Working example: