Controller.UpdateModel<TModel> Method (TModel, String)

Updates the specified model instance using values from the controller's current value provider and a prefix.

Namespace:  System.Web.Mvc
Assembly:  System.Web.Mvc (in System.Web.Mvc.dll)


Protected Friend Sub UpdateModel(Of TModel As Class) ( _
    model As TModel, _
    prefix As String _
Dim model As TModel
Dim prefix As String

Me.UpdateModel(model, prefix)
protected internal void UpdateModel<TModel>(
    TModel model,
    string prefix
where TModel : class
protected public:
generic<typename TModel>
where TModel : ref class
void UpdateModel(
    TModel model, 
    String^ prefix
JScript does not support generic types or methods.

Type Parameters

  • TModel
    The type of the model object.


  • model
    Type: TModel
    The model instance to update.
  • prefix
    Type: System.String
    A prefix to use when looking up values in the value provider.


You do not have to explicitly specify the generic parameter TModel. Instead, you can let the C# or Visual Basic type inference engine determine the generic parameter TModel by omitting it.

The TryUpdateModel method is like the UpdateModel method except that the TryUpdateModel method does not throw an InvalidOperationException exception if the updated model state is not valid.

Security noteSecurity Note:

Use one of the TryUpdateModel methods that takes either a list of properties to include (a whitelist) or a list of properties to exclude (a blacklist). If no explicit whitelist or blacklist is passed, the TryUpdateModel method tries to update every public property in the model for which there is a corresponding value in the request. A malicious user could exploit this in order to update properties that you do not intend to provide access to.

See Also


Controller Class

UpdateModel Overload

System.Web.Mvc Namespace