public override bool IsValidForRequest(RouteContext context, ActionDescriptor action) {
if (string.Equals(context.HttpContext.Request.Method, "GET", StringComparison.OrdinalIgnoreCase) ||
string.Equals(context.HttpContext.Request.Method, "HEAD", StringComparison.OrdinalIgnoreCase) ||
string.Equals(context.HttpContext.Request.Method, "DELETE", StringComparison.OrdinalIgnoreCase) ||
string.Equals(context.HttpContext.Request.Method, "TRACE", StringComparison.OrdinalIgnoreCase)) {
return false;
}
if (string.IsNullOrEmpty(context.HttpContext.Request.ContentType)) {
return false;
}
if (!context.HttpContext.Request.ContentType.StartsWith("application/x-www-form-urlencoded", StringComparison.OrdinalIgnoreCase)) {
return false;
}
return !string.IsNullOrEmpty(context.HttpContext.Request.Form[_name]);
}
}
