Check if a cell contains valid data - google-sheets

I have applied the data validation in Google Sheets, now the user gets a warning and a red corner in a cell if the value in a cell is not from a selected range. However, I would like to check with my script if the value in a cell C1 is valid or not.
Is there something similar to 'ISERR(C1)' but for validation?

Related

conditional formatting in google sheet

First Requirement in google sheet
how to highlight cell A1 if data enter in cell B1 and A1 is remain empty and when data enter in cell A1 its color auto reset.
Second Requirement in google sheet
when user enter data in B1 how auto highlights cells C1,D1,E1,F1 untill data also enter in all these cells
im want that when user enter data in cell B1 and cell A1 is empty its auto highlight the cell A1 and when user enter Data enter in cell B1 cell C1,D1,E1,F1 auto highlight/fill with color and when user enter data in all these cells its auto reset.
You can try with this formula in range A1:F:
=(A1="")*(COUNTA($A1:$F1))
It checks if that specific cell is empty and if there is another value in that row. If you need to check B in particular add *($B1<>"")
Let me know if it's useful

Google sheets - Relative conditional format based on cell above

I search in the deepest parts on the internet for a google sheets relative conditional formating based on the cell above value, which means, that whenever i add a new value in the cell below, it will automatically check the cell above value and format the cell according to it.
I've finally came to the solution explained below.
The result will be something like this:
I hope it works for you, weary traveller.
Select the range of cells that you want to format.
Go to >Format > Conditional Format > Add rule.
Under format rules select the option "Custom Formula is".
Paste the next formula if you want to check that your current cell is BIGGER THAN the cell above: =INDIRECT(ADDRESS(ROW();COLUMN())) > INDIRECT(ADDRESS(ROW()-1;COLUMN()))
OR the next formula if you want to check that your current cell is LOWER THAN the cell above: =INDIRECT(ADDRESS(ROW();COLUMN())) < INDIRECT(ADDRESS(ROW()-1;COLUMN())).
Select the color you like to apply, and click in DONE.
If the range of cells is A2:G, this rule will also work:
=AND(A2<>"",A2<A1) [RED]
=AND(A2<>"",A2>A1) [GREEN]

Conditionally formatting if multiple cells are not blank and the cell I am formatting is blank

I have created a spreadsheet and I need to have a blank cell highlighted if ever another cell in its row is not blank and am having trouble figuring it out. I know the basics behind conditional formatting in Google Sheets just need some advice.
try like this:
apply to range A1:A
enter custom formula: =($B1<>"")*($A1="")
logic: if B cell is not blank and A cell is blank then A cell gets highlighted

Colour a cell based on the colours applied to a key list

I want to apply the colours in a list to an array of cells. The list contains the items that are made available in a data validation drop-down for each cell. This example should show what I mean. I have manually set the backgrounds of the cells to match the key but I want to do this automatically, so that when a cell is assigned from a drop-down it gets the colour from the key table.
Can this be done with conditional formatting (bearing in mind that the key list will get new members/colours)?
No. But the whole range (table and dropdown cells) can be formatted with CF formula rules (one per colour).

Google Sheets Conditional formatting custom formula: if current cell is empty, but other cell is not

So I'm trying to write a custom formula in google sheets for this condition. I want the current cell to be blacked out if it's empty, but only if this other cell is not empty. This prevents a lot of other cells from being blacked out further down the column (I'm adding new rows periodically as new data becomes available).
I can do something like =E:E<>"", which tests if the other cell is not empty, but I can't figure out how to add to it to test that the current cell is empty.
I want to test that column F is empty, and that column E is not. The row number would be the same, ie F1 is empty, E1 is not empty.
Thanks.
Try:
=AND(ISBlank(E1),NOT(isBlank(F1)))
Entered in E1
Apply to E1:E

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