How to show a message yes/no before delete record?

[enchev]

No, you can use the partial class of the page to define the method for showing simple dialog similar to the code in this thread:

Setting the value of a RadioButtonList to a Property in the Designer generates an error

Hi @Crowmmark, You are right. At the moment component cannot be configured from the designer to work with nullable values. We will do our best to provide fix early next week. Possible workaround is to defined it using HTML component like this: [image] [image] The handler should be in the partial class of the page [image] here is how it looks runtime [image]