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Controller.TryUpdateModel(Of TModel) Method (TModel, String, String(), IValueProvider)

Updates the specified model instance using values from the value provider, a prefix, and included properties.

Namespace:  System.Web.Mvc
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(), _
	valueProvider As IValueProvider _
) As Boolean
'Usage
Dim model As TModel
Dim prefix As String 
Dim includeProperties As String()
Dim valueProvider As IValueProvider 
Dim returnValue As Boolean 

returnValue = Me.TryUpdateModel(model, _
	prefix, includeProperties, valueProvider)

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.
valueProvider
Type: System.Web.Mvc.IValueProvider
A dictionary of values that is used to update the model.

Return Value

Type: System.Boolean
true if the update is successful; otherwise, false.

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 the generic parameter.

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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