IRouteConstraint.Match Method
Definition
Important
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Determines whether the URL parameter contains a valid value for this constraint.
public:
bool Match(System::Web::HttpContextBase ^ httpContext, System::Web::Routing::Route ^ route, System::String ^ parameterName, System::Web::Routing::RouteValueDictionary ^ values, System::Web::Routing::RouteDirection routeDirection);public bool Match (System.Web.HttpContextBase httpContext, System.Web.Routing.Route route, string parameterName, System.Web.Routing.RouteValueDictionary values, System.Web.Routing.RouteDirection routeDirection);abstract member Match : System.Web.HttpContextBase * System.Web.Routing.Route * string * System.Web.Routing.RouteValueDictionary * System.Web.Routing.RouteDirection -> boolPublic Function Match (httpContext As HttpContextBase, route As Route, parameterName As String, values As RouteValueDictionary, routeDirection As RouteDirection) As BooleanParameters
- httpContext
- HttpContextBase
An object that encapsulates information about the HTTP request.
- route
- Route
The object that this constraint belongs to.
- parameterName
- String
The name of the parameter that is being checked.
- values
- RouteValueDictionary
An object that contains the parameters for the URL.
- routeDirection
- RouteDirection
An object that indicates whether the constraint check is being performed when an incoming request is being handled or when a URL is being generated.
Returns
true if the URL parameter contains a valid value; otherwise, false.
Remarks
You use the Match method to add validation logic for the constraint. This method is called by the routing framework when an incoming request is processed and when a URL is constructed. You can determine the current scenario by examining the routeDirection parameter.
When a request is processed, the routing framework determines whether the pattern and values of the incoming request match the pattern and constraints of the route. When a URL is constructed, the routing framework determines whether the values supplied when the GetVirtualPath method is called match the pattern and constraints of the route.
