50 lines
2.3 KiB
C#
50 lines
2.3 KiB
C#
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namespace System.Web.Mvc {
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using System.Collections.Generic;
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using System.Web.Routing;
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internal static class RouteValuesHelpers {
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public static RouteValueDictionary GetRouteValues(RouteValueDictionary routeValues) {
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return (routeValues != null) ? new RouteValueDictionary(routeValues) : new RouteValueDictionary();
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}
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public static RouteValueDictionary MergeRouteValues(string actionName, string controllerName, RouteValueDictionary implicitRouteValues, RouteValueDictionary routeValues, bool includeImplicitMvcValues) {
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// Create a new dictionary containing implicit and auto-generated values
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RouteValueDictionary mergedRouteValues = new RouteValueDictionary();
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if (includeImplicitMvcValues) {
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// We only include MVC-specific values like 'controller' and 'action' if we are generating an action link.
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// If we are generating a route link [as to MapRoute("Foo", "any/url", new { controller = ... })], including
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// the current controller name will cause the route match to fail if the current controller is not the same
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// as the destination controller.
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object implicitValue;
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if (implicitRouteValues != null && implicitRouteValues.TryGetValue("action", out implicitValue)) {
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mergedRouteValues["action"] = implicitValue;
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}
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if (implicitRouteValues != null && implicitRouteValues.TryGetValue("controller", out implicitValue)) {
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mergedRouteValues["controller"] = implicitValue;
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}
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}
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// Merge values from the user's dictionary/object
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if (routeValues != null) {
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foreach (KeyValuePair<string, object> routeElement in GetRouteValues(routeValues)) {
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mergedRouteValues[routeElement.Key] = routeElement.Value;
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}
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}
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// Merge explicit parameters when not null
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if (actionName != null) {
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mergedRouteValues["action"] = actionName;
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}
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if (controllerName != null) {
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mergedRouteValues["controller"] = controllerName;
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}
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return mergedRouteValues;
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}
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}
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}
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