Hello,

I have some problems with setting up correct Cell Validation for my use-case. I want to create a list validation which is going to have a numeric options instead of typical string values.

So in order to achieve that I created a following cell validation:

{
    dataType: "list",
    showButton: true,
    comparerType: "list",
    from: '{1,2,3,4,5}',
    allowNulls: true,
    type: "reject"
}

Everything works fine in the widget, but the problems starts when I want to Export the following spreadsheet to Excel format. I'm getting the following message when trying to open such file:

In the past I had a similar problem with the list validation (but for string values) (https://www.telerik.com/account/support-tickets/view-ticket/1381434)

There you suggested to create a validation using different format for "from" property. So I decided to change it from:

from: '{1,2,3,4,5}',

to

from: '"1,2,3,4,5"',

After that I can freely export the spreadsheet without any problems, but then my list is inserting string values instead of numeric ones, therefore this solution is not suitable for my use-case.


And my question is: Is there a possibility to create a Cell validation where I can put numeric values as a possible options without breaking the export process? 

Here's a example spreadsheet, which I used to reproduce this behavior: https://dojo.telerik.com/IfuMIbic

Best regards,

Bug report

Excel file is corrupted when it is created with the kendo.ooxml.Workbook toDataURL method, using stringified sheet data:

let dataURL = new kendo.ooxml.Workbook(JSON.stringify(data)).toDataURL();

If the data is passed to the Workbook without stringifying it, this causes a circular reference error (check the console).

let dataURL = new kendo.ooxml.Workbook(data).toDataURL();

Reproduction of the problem

Dojo example.

1. Click the "To Json" button above the Spreadsheet.
2. Try to open the generated file in Excel.

Current behavior

The generated Excel file is corrupted

Expected/desired behavior

The generated Excel file is not corrupted

Environment

• Kendo UI version: 2020.2.617
• 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

Reproduction of the problem

Use the Events demo to reproduce, since the events are logged in the console: https://demos.telerik.com/kendo-ui/spreadsheet/events

1. Add a new sheet
2. Drag left the newly added sheet, to make it first
3. Click "Invoice", hold down the mouse button and drag the Invoice sheet back to first place

Current behavior

The Invoice sheet is selected but the selectSheet event does not fire.

Expected/desired behavior

The selectSheet event fires

Environment

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

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

When using a custom cell editor in the Spreadsheet along with keyboard navigation value selection is not limited to the cell with the custom cell editor

Reproduction of the problem

1. Run the Custom Editors Demo
2. Click on cell B2 and open the list popup with available values for selection
3. Press the right arrow key on the keyboard
4. Select a value from the list
5. The selected value will be applied to cell C2

Current behavior

The selected value is applied to cell other then the one using the custom cell editor

Expected/desired behavior

The selected value should be applied only to the cell with the custom cell editor

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.

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.

Currently, when the "Custom format" button in the Spreadsheet is clicked, the available predefined formats that can be applied to a cell appear as demonstrated in the below screenshot. These predefined options don't change if you set a specific Kendo UI culture. 

It will be a very useful feature to be able to change the predefined custom formats. Also, it will be nice if the custom formats in the Spreadsheet can be set based on the selected Kendo UI culture. 

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

=SUM(E5:E6:E9:E10)

Bug report

The select method of the range in the Spreadsheet component throws an error when we have a selected cell in the visible area of the component and try to select a range that is outside of this visible area.
The bug is replicable both when the range is passed as exact cells or row-column pair:

• sheet.range(3,2,3,3).select();
• sheet.range("C4:E6").select();

** This is a regression from the R3 2019 release

Reproduction of the problem

1. Open this Dojo
2. Scroll to row 70+ and select a random cell
3. Press the "Select range" button

Current behavior

The following error appears in the browser's console

If you scroll to the top rows of the Spreadsheet there is a visual selection of the cells that are passed in the range

Expected/desired behavior

On "Select range" click the "C4:E6" cell range should be selected and the Spreadsheet should be automatically scrolled to this selection.

Here is a working demo: https://dojo.telerik.com/uRERUxOm

Environment

• Kendo UI version: 2020.1.219
• jQuery version: x.y
• Browser: [all]