About the values that CompareValidator can compare

Hello.
I want to use "CompareValidator" to validate the value entered in the DataGrid.

Specifically, I don't want the values ​​entered in a particular column to be duplicated, so I want to display a warning text with "Popup" in "Radzen Compare Validator" when I enter a value that already exists.

Q.1
Is it possible for "RadzenCompareValidator" to compare the value you want to compare (the "Operator" parameter) with multiple elements? (Can I specify an array or List for the "Value" parameter?)

Q.2
How do I convert the value I want to compare (the "Operator" parameter) to Radzen.Blazor.CompareOperator?
I tried to write

CompareOperator comp = 100 (typeof (CompareOperator));

but it doesn't work.... (error: CS0149)

Sorry for the very rudimentary question, but please give me some advice.
Also, I'm sorry if it's difficult to convey because I'm not good at English.

Hi @tomo_Big,

The CompareValidator supports single values only. You can check the source for a reference.