I'm using a comboBox with the allowCustom setting. 2 questions:
1) How can I make sure that only integer values can be entered as custom value (meaning numeric values without decimal point)?
2) How can I make sure that only double values can be entered as custom value (meaning numeric values with or without decimal point)?
1 Answer, 1 is accepted
Hi Bernd,
The KendoReact Combobox component provides "onChange" event that can be used for manipulating the custom value, but it will fire only when the user blur the input (select the value). Within the event you can perform validation and do not change the state value if it does not match your requirement.
Another option would be to attach event handler for the keydown event of the input element and allow only numeric values, the decimal separator and the delete key. I have created a simple example with this approach, but you can modify it as per the exact requirements:
Hope this helps.
Regards,
Konstantin Dikov
Progress Telerik
Virtual Classroom, the free self-paced technical training that gets you up to speed with Telerik and Kendo UI products quickly just got a fresh new look + new and improved content including a brand new Blazor course! Check it out at https://learn.telerik.com/.
Rank 5
Bronze
Bronze
Bronze