BindingGroup.ValidationRules Property

Gets a collection of ValidationRule objects that validate the source objects in the BindingGroup.

Namespace:  System.Windows.Data
Assembly:  PresentationFramework (in PresentationFramework.dll)

member ValidationRules : Collection<ValidationRule>

Property Value

Type: System.Collections.ObjectModel.Collection(ValidationRule)
A collection of ValidationRule objects that validate the source objects in the BindingGroup.

When a ValidationRule is added to a BindingGroup, the BindingGroup is passed in as the first parameter of the Validate method. You can get the proposed values of the object by using the TryGetValue or GetValue(Object, String) method. You can get the objects that are the sources of the bindings from the Items property.

The following example adds the custom ValidationRule, ValidateDateAndPrice, to the BindingGroup.


<StackPanel.BindingGroup>
  <BindingGroup NotifyOnValidationError="True">
    <BindingGroup.ValidationRules>
      <src:ValidateDateAndPrice ValidationStep="ConvertedProposedValue" />
    </BindingGroup.ValidationRules>
  </BindingGroup>
</StackPanel.BindingGroup>


The following example shows the ValidateDateAndPrice class. The Validate method uses the BindingGroup to get the values the user entered into the form, and checks that if an item is over 100 dollars, it will be available for at least seven days.

No code example is currently available or this language may not be supported.

.NET Framework

Supported in: 4, 3.5 SP1, 3.0 SP2

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
Was this page helpful?
(1500 characters remaining)
Thank you for your feedback

Community Additions

ADD
Show:
© 2014 Microsoft