I have defined the Validation method and indicated its BeforeClose dialogue property.
Established the value of the Cancel property in both true and false.Put an interrupt in the debugger.The method is invoked when clicking buttons in the dialog, but the value of the Cancel property is not important. Dialog is always closed
BSBuvana Sathasivam Syncfusion Team June 20, 2019 04:35 AM
Sorry for the inconvenience caused.
We have checked your reported issue and able to reproduce on “Issue with cancel argument in BeforeClose event”. We will fix this issue and include in our upcoming Volume 2 beta release, which is planned to roll out on end of June.