Dear Concerned,

1. Launch https://demos.telerik.com/kendo-ui/spreadsheet/index

2. Select Column B11, click wrap text from Home toolbar.

3. Start typing in B11 & see cell editor keeps growing and goes beyond screen.

4. This is not user friendly, it should be same as Excel

5. Any alternative or quick fix would be appreciable

Hi Team,

I'd like to request a way to manipulate a large amount of cell groups in the Kendo UI Spreadsheet without decreasing performance.  For example, I'd like to be able to merge/unmerge and change font size to multiple specific cell groups.  I understand changing multiple DOM elements at the same time can cause sluggishness, but maybe there's a way to reduce the time. Currently, it's taking a long time to completely load.  

Thank you for investigating.

Bug report

There is no TypeScript definition for defineFunction and no custom functions can be created in TypeScript context using the approach demonstrated in this Custom functions article.

Reproduction of the problem

Try defining a new function using:
kendo.spreadsheet.defineFunction("Mask",mask).args(maskArgs)

Current behavior

The following error appears:

Propery "defineFunction" does not exist on type 'typeof spreadsheet'

Expected/desired behavior

There shouldn't be any errors

Environment

• Kendo UI version: 2019.3.1023
• jQuery version: x.y
• Browser: [all]

Working with numbers like 0.000001056  in a Spreadsheet that is bound to a dataSource, after saving the dataSource, the mentioned number will be converted to an exponential format. 

The current feature request is about preventing the format changing after saving decimal numbers.

It will be very useful if we can use the Spreadsheet with dataSource binding but keep the decimal numbers as such, not converting them to exponential expressions.

In the Spreadsheet control for jQuery it is possible to set cells as read-only through the use of the Enable property.

However, on calling saveAsExcel() these cells are editable. This means as a developer it is then necessary to create both the spreadsheet JSON (for Kendo Spreadsheet) as well as another spreadsheet class to export to Excel.

Could you please map the Cell.Enable property to the setting of Excel cells as disabled/read-only. Thanks 👍

Bug report

Memory usage is increased if the DevTools is open. Navigation between sheets is also slower.

Reproduction of the problem

1. Open our Spreadsheet demo in Chrome.
2. Import the attached Spreadsheet.
3. Open the Task Manager to check Chrome memory usage, and switch sheets to see the navigation speed.
4. Open DevTools and check memory usage again. Note that switching sheets is also significantly slower.

Current behavior

Memory usage increased and slower sheet change.

Expected/desired behavior

Memory usage should not be increased and sheet navigation should not be slow.

Environment

• Kendo UI version: 2020.2.619
• Browser: [all]

When I use this formula 

=HYPERLINK("mailto:"&B4&"?subject=“& B5 & “&body=“ & B6,", "test")

in the excel, I am able to click on the link which opens up my mail client with compose new email window and also populates To, Subject and Body of the email from cells B4, B5, B6 respectively.

But currently, HYPERLINK formula does not support "mailto:" functionality in Kendo UI spreadsheet. I would love to see this with kendo UI spreadsheet. 

For more details you can see the discussion on the forums here. 

Bug report

The AND formula, when used as part of an array formula, does not evaluate the whole array.

{=AND(A1:D1="")} would return TRUE if a value is entered in the range B1:D1 and FALSE only if value is entered in A1
=IF(AND(A1="",B1="",C1="",D1=""),TRUE,FALSE) would return FALSE if value is entered in any cell in range A1:D1

Reproduction of the problem

1. Run this dojo
2. Select cell E1, press F2 to edit formula and press Ctrl+Shift+Enter to enter as an array formula

Current behavior

1. Enter a value in cell B1 - Array formula evaluates as TRUE, Non-array formula as FALSE
2. Only if a value is entered in A1 the Array formula will evaluate as FALSE

Expected/desired behavior

Array formula should be evaluated correctly and return FALSE when a value is entered in any cell in range A1:D1.

Environment

• Kendo UI version: 2020.2.617
• Browser: [all]

Bug report

Reproduction of the problem

Reproducible in this demo: https://demos.telerik.com/kendo-ui/spreadsheet/datasource

1. Scroll down to row 78
2. Focus A78 and drag to E78. Copy the data
3. Paste over the empty 79 row's first cell
4. Press Ctrl + Z to undo the changes.
5. Open the browser's dev tools network tab and press the "Save" button above the Spreadsheet.

Current behavior

The data cleared by the "undo" shortcut is saved and sent to the server

A different behavior is exhibited if the data is pasted over the row header instead of the row's first cell. Follow the same steps, but on step 3. instead of pasting over the first cell, paste the data over the row 79 header. After undo and then clicking "Save", the fields have null values.

Expected/desired behavior

No data is sent with the request

Environment

• Kendo UI version: 2020.2.617
• jQuery version: x.y
• Browser: [all]

Need:

Extract only the values for all Spreadsheet cells. These extracted values can be sent back to server (with minimum size) as server only needs data on each sheet. On other information required like references, formulas, images, colors etc.

Possible Approach:

On click of save or a separate button, which will generate a low size data file (having sheet name, cell index and value), which we can send to server.

It will save network traffic and also no complex parsing needed at server side to fetch data.

Dear Concerned,

1. open https://demos.telerik.com/kendo-ui/spreadsheet/index

2. select row header of row 10, go to Insert tab

3. click insert row below, it inserts row successfully after row 10, it adjust formulas of row 12, and other rows there after which is good.

4. But issue is - it neither keep format of row 10 in new row & nor it add formulas to various columns in new row(e.g. F11, E11)

Please suggest how can we achieve it, it is very common and useful feature which excel have. if you do not have any ready solution then please suggest workaround for the same as it is urgent for my client.

Additional functionality for:
-- Conditional Formatting -- coloring of cells, for example based upon a value and then be able to import from excel, and export back out.
-- Data Validation (dropdowns).  Also be able to import and export back out.

Hi,

I want to highlight spreadsheet on cell hover. But I just want to highlight row and column until cell. Is there any way to do this ? 

In example, When my mouse on cell E11.

Best Regards,

Kaan

In Excel it is possible to select several rows and increase/decrease all selected rows height. In the Spreadsheet this works only for the last selected row. The following steps demonstrate the behavior:

1. Open https://demos.telerik.com/kendo-ui/spreadsheet/index

2. Click on the header of row 6, hold and drag until rows 6, 7, 8, 9 , 10 are selected.

3. Click the handle below row 10's header and drag to increase the height of the rows. The Spreadsheet increases only the last row's height.

Currently, the sheets in the Spreadsheet component can be reordered. It will be a very useful feature if we can configure the component in a way this reordering can be disabled.

Thus the users won't be able to move the sheets' tabs.

It would be great if you would add accessabbility to the spreadsheet as it seems to be the last control without this feature.

Currently the focus gets trapped inside its grid and the user cannot leave the spreadsheet with the TAB key. At least this should be avoided. It would be also better if only the first cell would be focusable and you then could navigate with the arrow keys, as with thousands of cells it is not very comfortable to use the TAB key.

Add support for multiple ranges for the Spreadsheet's SUM function, for example: 

=SUM(E5:E6:E9:E10)