NonlinearModel.FunctionEvaluator Property
[This documentation is for preview only, and is subject to change in later releases. Blank topics are included as placeholders.]
Gets or sets the value callback function that the solver invokes periodically in order to obtain function values for different variable values.
Namespace: Microsoft.SolverFoundation.Services
Assembly: Microsoft.Solver.Foundation (in Microsoft.Solver.Foundation.dll)
Syntax
'Declaration
Public Property FunctionEvaluator As Func
public Func FunctionEvaluator { get; set; }
public:
virtual property Func^ FunctionEvaluator {
Func^ get () sealed;
void set (Func^ value) sealed;
}
abstract FunctionEvaluator : Func with get, set
override FunctionEvaluator : Func with get, set
final function get FunctionEvaluator () : Func
final function set FunctionEvaluator (value : Func)
Property Value
Type: System.Func<T1, T2, T3, T4, TResult>
The value callback function.
Implements
INonlinearModel.FunctionEvaluator
Remarks
You must set the value callback function before trying to solve the model.
The value callback function has the following arguments:
The first argument is the INonlinearModel that is being solved.
The second argument is an Int32 that represents the row index to be evaluated, which is a goal or a constraint.
The third argument is a ValuesByIndex that contains the current variable values that are accessible by index.
The fourth argument is a Boolean that indicates whether the current call is the first evaluator call that has the current variable values.
The return value is a Double that is the value of the row for the current variable values.
.NET Framework Security
- Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.