Controller.TryUpdateModel(Of TModel) Method (TModel, String, String(), String())
Visual Studio 2010
Updates the specified model instance using values from the controller's current value provider, a prefix, a list of properties to exclude, and a list of properties to include.
Assembly: System.Web.Mvc (in System.Web.Mvc.dll)
'Declaration Protected Friend Function TryUpdateModel(Of TModel As Class) ( _ model As TModel, _ prefix As String, _ includeProperties As String(), _ excludeProperties As String() _ ) As Boolean
Type Parameters
- TModel
The type of the model object.
Parameters
- model
- Type: TModel
The model instance to update.
- prefix
- Type: System.String
The prefix to use when looking up values in the value provider
- includeProperties
- Type: System.String()
A list of properties of the model to update.
- excludeProperties
- Type: System.String()
A list of properties to explicitly exclude from the update. These are excluded even if they are listed in the includeProperties parameter list.
| Exception | Condition |
|---|---|
| ArgumentNullException | The model parameter or the ValueProvider property is Nothing. |
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.
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