Is there any tool similar to error provider in wpf using vb?

Do you mean something like System.Windows.Forms.ErrorProvider:
https://msdn.microsoft.com/en-us/library/system.windows.forms.errorprovider%28v=vs.110%29.aspx[^]?

First of all, look at this: http://errorprovidersforwpf.codeplex.com[^].

(Take a look at this CodeProject articles, not of good reputation though:
An Error Provider for Windows Presentation Foundation[^],
Wpf ErrorProvider - Integrating IDataErrorInfo, WPF, and the Validation Application Block (VAB)[^].)

I think this concept itself is very limited. In many cases, you can decide if the state of control is valid only if you consider a set of controls taken together. In many cases, it makes sense to validate the set of control only at the moment when the user is about to use the controls' data, such as at the click of some button like "Submit", "Perform".

See also this article on validation in WPF: Validation in Windows Presentation Foundation[^].

—SA