You CAN header redirect a POST request, and include the POST information. However, you need to explicitly return HTTP status code 307. Browsers treat 302 as a redirect with for GET, ignoring the original method. This is noted explicitly in the HTTP documentation: https://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.3.8 Practically, this means in PHP you need to set the status … Read more
Yes, this is legal. This is useful for implementations of virtuals from the base class in implementations that do not intend on using the corresponding parameter: you must declare the parameter to match the signature of the virtual function in the base class, but you are not planning to use it, so you do not … Read more
My solution (Guids is a list of ids you would like to filter by): List<MyTestEntity> result = new List<MyTestEntity>(); for(int i = 0; i < Math.Ceiling((double)Guids.Count / 2000); i++) { var nextGuids = Guids.Skip(i * 2000).Take(2000); result.AddRange(db.Tests.Where(x => nextGuids.Contains(x.Id))); } this.DataContext = result;
That will work fine (no exception). Extension methods don’t use virtual calls (i.e. it uses the “call” il instruction, not “callvirt”) so there is no null check unless you write it yourself in the extension method. This is actually useful in a few cases: public static bool IsNullOrEmpty(this string value) { return string.IsNullOrEmpty(value); } public … Read more
Here is my own contribution for the Java programming language. first some code: public void swap(int x, int y) { int tmp = x; x = y; y = tmp; } calling this method will result in this: int pi = 3; int everything = 42; swap(pi, everything); System.out.println(“pi: ” + pi); System.out.println(“everything: ” + … Read more
Oddly enough, the title to your question is basically the answer to it. You want to do something like this, using mysqli parameterized queries: $db = new mysqli(<database connection info here>); $name = “michael”; $age = 20; $stmt = $db->prepare(“SELECT $fields FROm $table WHERE name = ? AND age = ?”); $stmt->bind_param(“si”, $name, $age); $stmt->execute(); … Read more
The other answers have done a good job at explaining duck typing and the simple answer by tzot: Python does not have variables, like other languages where variables have a type and a value; it has names pointing to objects, which know their type. However, one interesting thing has changed since 2010 (when the question … Read more
You’re calling request.getParameter() instead of request.getAttribute() to obtain the value. Since you’ve set it as request attribute, you should also get it as request attribute. So: request.setAttribute(“foo”, foo); is only available by Object foo = request.getAttribute(“foo”); // NOT getParameter(). The getParameter() is only for HTTP request parameters as you can specify in request URL or … Read more
I had the same question and more, and though this thread is old, it is still a good one, so in summary for SSRS 2008R2 I found… Situations You want to use a value from a URL to look up data You want to display a parameter from a URL in a report You want … Read more
In the answers to the question this duplicates the limitation mentioned in @ford04’s answer here, that infer only looks at the last overloaded signature, is acknowledged. But this answer shows it’s not completely impossible; you can tease out some information about overloads, at least for functions with up to some arbitrary fixed number of them. … Read more