CODEWITHSUNDEEP
wpfvalidationmvvmtextboxprism
Bogdan Verbenets
Bogdan Verbenets

Reputation: 26952

check if value in textbox is valid

I have a textbox with a validator that permits only integer values. How do I check if text in my textbox represents a correct integer value without checking the text itself?

I am using Prism MVVM so I would like to hear some solution like "bind a validator property to your viewmodel/model code", but a generic WPF solution is also fine.

The problem is that I can't get the incorrect value in my model / viewmodel. If the value is incorrect, then the underlying binded property doesn't get set.

Upvotes: 0

Views: 1271

Answers (1)

devdigital
devdigital

Reputation: 34369

You could use IDataErrorInfo, or Data Annotations. The Data Annotations Extensions project contains an Integer attribute.

Upvotes: 1

Related Questions