How do I verify the cell or Table?

Tags: #<Tag:0x00007f8b2b1f41c8>
#1

Assuming that there is a table, the information on the table is currently imported into getSourceData and stored in the DB.

I was checking whether the data I brought to getSourceData was correct or not by turning it into the conditional statement I wrote, and when I happened to look it up in the document, there was a function called validatecell.

So I tried to use this function, but I didn’t think there was a related example, so I was curious how it was used exactly, so I left a question.

Currently, the action I want to do is simply to check whether the value that enters the cell is string or number.

Of course, I know that celltype can be changed to numbers and letters through rendering function, but only red is displayed on the screen, and exceptions are being processed separately.

#2

Hi @curlydoggi

Could you share your recent progress in a demo? (just the part that you have to gather the data, without the server part)

#3

Hi @curlydoggi

do we have any updates here or can we call it solved?

#4

Sorry for the late response. Alexandra, I posted a question but I couldn’t care about it irresponsibly.

It is difficult to post a related example. I just want to verify it.

For example, when only numbers should be entered in hands-on-table, the user entered characters in hands-on-table. After that, I just want to make an exception so that when I use a function or try to take action, I can’t move on to that action.

#5

If 0 or 1 is returned as a result of such verification, the result would prevent me from taking the next action or from doing it, is there any way?

#6

To clarify @curlydoggi, in your use case user can type only digits in a cell editor and the editor will not close until they type a correct value?

#7

It’s not that the table won’t close, it’s that the next function to be done is not executed.

For example, let’s say that there is a function in the table that inputs a number and adds it using that number.

If a string is entered in the table, the plus function should not be executed, of course, there will be an error on the console.

To prevent this case, I want to do cell validating and give a warning message to the user in case of an error.

Whether it’s a number or a letter, I want to give a validating option to the cell I want.

Are the things I mentioned above completely irrelevant to the validate cell of hands-on table?

#8

OK so let’s confirm. Please confirm if I got it correct.

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#9

image

I think we look at each other differently. What I’m talking about is to validate if it’s entered incorrectly by the user like the table above.

If a character is entered in a cell where a number is to be entered, such as in the table above, and the next action (function) is executed without verification or exception processing, a problem will arise.

If this is a problem related to storing data in the DB, an error will occur because it does not fit the DB data type.

As a result, before executing a function related to the table, I want to identify the incorrectly entered cell and give a warning message to the user without executing the function if there is an error.

Are the things I said related to the validate cell?

#10

Would afterValidate hook meet your requirements? When the cell editor is closed and the value turns red as invalid this hook is called. It returns

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Within that hook, you will be able to attach your custom error message for the user.

#11

Is there any example of using afterValidate?

#12

Here is a simple example https://jsfiddle.net/b0wf1ra4/. Let me know if you would need anything more than that.

#13

Thank you Alexandra, I was able to solve the problem. Is it okay to ask questions about verification from time to time?

#14

Verification, what do you mean? Generally, we provide guidance related to any aspect of Handsontable.

#15

Never mind. I said it wrong. Anyway, thank you always.

#16

Thank you for the update. I’m closing this thread.

#17