/// <summary>
/// Returns an anchor element (a element) for the specified link text, action, controller, and route values.
/// </summary>
/// <param name="linkText">The inner text of the anchor element.</param>
/// <param name="actionName">The name of the action.</param>
/// <param name="controllerName">The name of the controller.</param>
/// <param name="routeValues">An Object that contains the parameters for a route.</param>
/// <returns>An anchor element (a element).</returns>
/// <exception cref="ArgumentNullException"></exception>
public IEncodedString ActionLink(string linkText, string actionName, string controllerName, object routeValues)
{
var routerValuesDict = UtilHelper.ObjectToDictionary(routeValues);
return(ActionLink(linkText, actionName, controllerName, routerValuesDict, null));
}
/// <summary>
/// {{actionLink 'linkText' 'action' 'controller' (object key=value) (object key=value) 'protocol' 'host'}}
/// </summary>
/// <return>
/// <a href=protocol://host/controller/action?routeValues>linkText</a>
/// </return>
public void RegisterActionLink_Helper()
{
_hbsService.RegisterHelper("actionLink", (output, context, arguments) =>
{
if (arguments.Length < 3 || arguments.Length > 7)
{
throw new HandlebarsException("{{actionLink}} helper must have at least 3 arguments with maximum 7 arguments");
}
var linkText = arguments.At <string>(0);
var actionName = arguments.At <string>(1);
var controllerName = arguments.At <string>(2);
var initialRouteValues = arguments.Length > 3 ? arguments.At <Dictionary <string, object> >(3) : null;
var initialHtmlAttributes = arguments.Length > 4 ? arguments.At <Dictionary <string, object> >(4) : null;
var protocol = arguments.Length > 5 ? arguments.At <string>(5) : null;
var hostName = arguments.Length > 6 ? arguments.At <string>(6) : null;
if (string.IsNullOrWhiteSpace(actionName))
{
throw missingParameterException("actionLink", "actionName");
}
if (string.IsNullOrWhiteSpace(controllerName))
{
throw missingParameterException("actionLink", "controllerName");
}
var routeValues = CastDictionary(initialRouteValues);
if (initialRouteValues != null && routeValues == null)
{
throw new ArgumentException("Couldn't Cast RouteValues. @{actionLink}");
}
var htmlAttributes = CastDictionary(initialHtmlAttributes);
if (initialHtmlAttributes != null && htmlAttributes == null)
{
throw new ArgumentException("Couldn't Cast HtmlAttributes. @{actionLink}");
}
Uri uri = null;
if (routeValues != null && routeValues.Count != 0)
{
routeValues.Add("action", actionName);
routeValues.Add("controller", controllerName);
uri = UtilHelper.BuildURI(protocol ?? _viewSettings.Protocol, hostName ?? _viewSettings.Hostname, _viewSettings.UrlPattern, routeValues);
}
else
{
var uriBuilder = new UriBuilder(protocol ?? _viewSettings.Protocol, hostName ?? _viewSettings.Hostname)
{
Path = controllerName + "/" + actionName
};
uri = uriBuilder.Uri;
}
if (linkText == null)
{
linkText = uri.ToString();
}
var htmlAttrStr = UtilHelper.ConvertDictionaryToString(htmlAttributes);
var link = string.Format("<a {2}href=\"{0}\">{1}</a>", uri.ToString(), HttpUtility.HtmlEncode(linkText), htmlAttrStr);
output.WriteSafeString(link);
});
}
