UpDown Editor validation on lost focus

[Marijan Rumenovic]

Hi,

I'm using UpDown and I need configure the validation when a new value is entered.

By default, binded property is immediately updated when a key is pressed.
But I need something like LostFocus validation for the current value.

Furthermore, validation must be active on up/down buttons.

Is that possible?


Regards,
Marijan

[Antony Xavier D]

Hi Marijan,

 

We have prepared a sample based on your requirement. In that we have validated the input value 20 in the lost focus and also in value changed by the repeat button of updown.

Please find the attached sample below.

 

Regards,

Antony.

UpDownValidation_6edc3783.zip

[Daniel]

Hello, 

I have the same doubt as the author of the post, but can't download the sample attached.

[BagavathiPerumal Apranandham]

Hi Daniel,

We suggest you to use the “MinValidation” and “MaxValidation” properties to validate the value of the UpDown control on LostFocus. Please refer to the attached sample and documentation for your reference.

Documentation link: Restriction in WPF NumericUpdown control | Syncfusion

Regards,
Bagavathi Perumal A

Attachment: UpDownMinMaxValidation_ee5710d7.zip