Bug report

Client-side exported Excel workbooks are exported "uncompressed" (as readable text) and their size is much greater than the original document.

Regression since R2 2019 - 2019.2.514

Reproduction of the problem

1. Go to https://demos.telerik.com/kendo-ui/spreadsheet/index
2. Open the following file in Spreadsheet -
   Workbook Original.xlsx - 26 KB
3. Export the file to Excel

Current behavior

The exported file is 1015 KB in size. The content of the file may be read as plain text

Expected/desired behavior

The exported file is 26 KB or similar size. The content of the file is unreadable binary data

Environment

• Kendo UI version: 2019.2.619
• Browser: all

Dear Concerned,

 

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

2. Open Attached Test.xlsx file

3. Check the value of A2, it is different than Excel

Note: Cell format of A2 is set as below, if I select only $ format then it is working.

On Internet Explorer-11, UI is getting blocked while performing comparatively fast data entries, it is not only too slow but values are getting truncated as well.

 

1. Open https://demos.telerik.com/kendo-ui/spreadsheet/index in IE 11

2. Start editing cells C3 to C12 and enter value 1234 in each cell as fast as possible

3. 1234 enter, 1234 enter , 1234 enter and so on without waiting for UI rendering completion as UI freezes for few seconds, and then all cells get updated in one go

4. below is the result, few cells are having wrong values 

5. Its very serious issue

Note: Excel 365, Excel and GoogleSheet works fine in such cases

Bug report

The performance in the latest official version is significantly worse compared to older versions (2017.1.117 and 2018.1.118 tested).

Reproduction of the problem

Dojo example.

1. Click a cell
2. Press Ctrl + A
3. Select a font size from the dropdown in the Spreadsheet's toolbar

Current behavior

The UI freezes and remains unresponsive for minutes.

Expected/desired behavior

The new font size is applied without significant delay.

Environment

• Kendo UI version: 2019.2.514
• jQuery version: x.y
• Browser: [all]

Currently the font sizes in the Spreadsheet are in pixels, while in Excel they are in points (pt). The values for the fontSize remains the same upon export / import. As a result, fonts in Excel appear lager than those in Spreadsheet.

Hi again :)

I see that in the configuration I can specify the max number of rows/column. However, I can do it per component basis, and I would like to have that on a per-sheet basis. Any way I can implement this?

Thanks!

For KendoUI Spreadsheet, it should have the ability to add images or logo into the spreadsheet. This feature is already available in Handsontable component.

Provide support for images client-side import/export through Telerik Document Processing.

Wanting to format a subset of a single cell with text styling different from the rest of the cell contents.  Something like the following:

or

 

Hello!

We find a formatting problem, when we have a relatively small result, for example (0.05%) the referring component on the screen gives a strange value (-,05%) as shown in the image below.

We want to know if you can help us with this.

Thank you.

Currently the API is very much limited to what is possible in the frontend in my opinion. It would be great if you could add events like:
- A cell/range was selected
- A cell was cut/pasted/copied
- The context menu was initialized
- A row/column was added
- A row was added/deleted/hidden
- A cell's content was modified
...
...

Bug report

When pasting data from Excel, the data is being pasted as an image instead of values

Reproduction of the problem

1. Open https://dojo.telerik.com/UKAFAkEn
2. Open new Excel file on your system in MS Excel application
3. Enter data 1, 2, 3, 4, 5 in A1 to A5 in sheet1
4. Copy data from A1 to A5 from the local file
5. Paste data in C3 of Spreadsheet opened in step 1
6. The pasted result is an image instead of values

Current behavior

Pasting from Excel results in an image

Expected/desired behavior

Pasting from Excel should result in correctly filled data cells

Environment

• Kendo UI version: 2019.2.514
• jQuery version: x.y
• Browser: [Chrome 74.0.3729.131 | Firefox 66.0.5 | Edge 42.17134.1.0 ]

I want to know the combination keys that generate the paste event 

Thx,

In my testing of utilizing the spreadsheet component and starting off with for example 100 rows in the configuration options, using insert row typically seems to shift the data down (if you have anything below the cursor). It does not actually increase the number of rows in the sheet. 

 

For example if I initialize the spreadsheet with the following info:

 

This will create the spreadsheet with 100 rows and columns A-Z as expected.

Now going anywhere in the sheet (or the end) and inserting a row above/or below will not add row 101, 102, 103, etc. In fact, if you are in the very last row and hit insert row below it will come up with a message regarding a possible loss of data. 

A couple things I have tried:

• Utilizing the insertRow event and setting a flag for when the next render call happens to recreate the sheet using the fromJSON() function.This mostly works actually, however if you try this while the cursor is near the last row (within 1-2 cells) there seems to be some sort of bug that the data from toJSON() removes the data from rows 1 and 2, but only after column 2. For example see attached screenshot
• Utilizing the insertRow event and updating event.sender.options.rows to increase by 1, it does something meaning the container expands in height by a little bit, but its an empty "row" with no grids and you cannot add content (it also does not have an # for the row). Looking at the actual JSON data it appears there are a lot of other locations rows is set, in the sheet, in the view, grid, etc.

 

So with that said, is it at all possible to actually add a row to the sheet as one would expect the behavior to be. This obviously still needs to call the internal functions to recalculate the ranges and data throughout the sheet; but somehow re-fresh or re-render the UI component (just calling render again doesn't fix it).

 

 

I appreciate your help with this.

We have: Uncaught Error: The toDataURL method can be used only with jsZip 2. Either include jsZip 2 or use the toDataURLAsync method.

and we have:

so i implement a function SpreadSheetOnexcelExport on excelExport event:

$.SpreadSheetOnexcelExport = function(){
var args = arguments[0];
var options = args.sender.options;
var wb = args.workbook;
var wbX = new kendo.ooxml.Workbook(wb)
var dataURL = wbX.toDataURLAsync();
wbX.toDataURLAsync().then(function(dataURL) {
kendo.saveAs({
  dataURI: dataURL,
  fileName: options.excel.fileName
});
});
args.preventDefault();
}

The problem is that, for fileName, I have no way to use the file name, selected by the user:

Dear Concerned,

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

2. Start editing cells D3 to D11 as fast as possible (like type 45 enter, 45 enter, 45 enter and so on) (refer attached videos)

3. UI freezes for few seconds, and then all cells get updated in one go

4. But Excel 365, Excel and GoogleSheet work fine in such cases

5. Please make similar UI behavior as in Excel.

 

Check attached Excel Data Entry & Kendo Data Entry video recordings

Dear Concerned,

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

2. Upload the attached sample.xlsx file.

3. Cell B1 getting value from cell A1 using formula "=TEXT(A1, "$#,###")"

4. Delete(Blank) the value of cell A1, see error #VALUE! in cell B1.

5. The same is working fine in Excel.

6. Please suggest any workaround or quick fix.

 

 

Check attached Sample.xlsx file in Sample.zip folder

Currently sorting is not supported for a Spreadsheet which has its Sheet bound to a Kendo DataSource.

Currently filtering is not supported for a Spreadsheet which has its Sheet bound to a Kendo DataSource.