strong-typing

Display an image contained in a byte[] with ASP.Net MVC3

旧街凉风 提交于 2019-11-28 17:56:15
I've a view with a strong type. This strong type has a field consisting of a byte[], this array contains a picture. Is it possible to display this image with something like @Html.Image(Model.myImage) ? Thank you very much You can create a controller action method that returns an image as a FileContentResult: public FileContentResult Display(string id) { byte[] byteArray = GetImageFromDB(id); return new FileContentResult(byteArray, "image/jpeg"); } Then you can create an ActionLink to the action method in the view using the image id from the model. It depends on how big the image is. If it is

Can someone tell me what Strong typing and weak typing means and which one is better?

瘦欲@ 提交于 2019-11-28 17:12:42
Can someone tell me what Strong typing and weak typing means and which one is better? That'll be the theory answers taken care of, but the practice side seems to have been neglected... Strong-typing means that you can't use one type of variable where another is expected (or have restrictions to doing so). Weak-typing means you can mix different types. In PHP for example, you can mix numbers and strings and PHP won't complain because it is a weakly-typed language. $message = "You are visitor number ".$count; If it was strongly typed, you'd have to convert $count from an integer to a string,

What are the key aspects of a strongly typed language?

一笑奈何 提交于 2019-11-28 09:46:37
What makes a language strongly typed? I'm looking for the most important aspects of a strongly typed language. Yesterday I asked if PowerShell was strongly typed, but no one could agree on the definition of "strongly-typed", so I'm looking to clarify the definition. Feel free to link to wikipedia or other sources, but don't just cut and paste for your answer. The term "strongly typed" has no agreed-upon definition. It makes a "great" argument in a flamewar, because whenever someone is proven wrong, they can just redefine it to mean whatever they want it to mean. Other than that, the term

Derby's handling of NULL values

。_饼干妹妹 提交于 2019-11-28 04:48:03
问题 I am new to Derby and I noticed that I face similar problems as when using the DB2 RDBMS as far as null values are concerned. The Derby documentation states, that a null value must have a type associated with it (something that DB2 finally got rid of in version 9.7): http://db.apache.org/derby/docs/10.7/ref/crefsqlj21305.html Now, I am trying to find a general solution to this problem here as this will be a part of my database abstraction library jOOQ. The below example just documents the

How far to go with a strongly typed language?

邮差的信 提交于 2019-11-28 03:48:38
Let's say I am writing an API, and one of my functions take a parameter that represents a channel, and will only ever be between the values 0 and 15. I could write it like this: void Func(unsigned char channel) { if(channel < 0 || channel > 15) { // throw some exception } // do something } Or do I take advantage of C++ being a strongly typed language, and make myself a type: class CChannel { public: CChannel(unsigned char value) : m_Value(value) { if(channel < 0 || channel > 15) { // throw some exception } } operator unsigned char() { return m_Value; } private: unsigned char m_Value; } My

What to do if a typings (or tsd) is not available?

时光毁灭记忆、已成空白 提交于 2019-11-28 02:32:19
问题 I was looking over the TypeScript handbook and I can't seem to find the answer. If I am using a library that no typings exist, what are my options? One is to create the typings file, but this I don't really want to do. What are my other options, I seem to remember some kind of 'declare' keyword ? Or maybe something in the tsconfig ? I assume there is a way of declaring this variable (type) globally so every time I use it, it would just work. And I presume there is a way of just declaring it

Emulating delegates with free generic type parameters in C#

不打扰是莪最后的温柔 提交于 2019-11-28 00:21:32
问题 This is a hard question about language design, patterns and semantics. Please, don't down-vote just because you don't see the practical value. First, let's think about functions and their parameters. Then we'll look at the analogies between functions with their parameters/arguments and generic classes/functions with their type-parameters/type-arguments. Functions are blocks of code with some unspecified values called " parameters ". You supply the arguments and receive the result. Generic

What are Java's primitive types? [duplicate]

断了今生、忘了曾经 提交于 2019-11-27 17:20:30
This question already has an answer here: What's the difference between primitive and reference types? 7 answers What are primitive type in Java? What is the difference between a primitive type and a reference type? How many primitive types does Java have, and what are they? In Java, every variable has a type declared in the source code. There are two kinds of types: reference types and primitive types. Reference types are references to objects. Primitive types directly contain values. There are 8 primitive types: byte short int long char float double boolean From the Java Language

Strong Typing a property name in .NET

送分小仙女□ 提交于 2019-11-27 14:02:16
问题 Say I have a class with one property Public Class MyClass Public Property MyItem() as Object .... End Property End Class I have to pass the name of the property to a function call. (Please don't ask why it should be done this way, its a third party framework). For example SomeFunc("MyItem") But what I would like to do is, change the string into a strongly typed parameter. Meaning, if the property name is renamed or changed, it should be reflected here too. So something of this type : Dim

Is Python a weakly typed language as variables can switch types?

对着背影说爱祢 提交于 2019-11-27 13:12:48
问题 The way I understand it, the following is allowed in PHP because it's a weakly-typed language. $var = 'Hello'; $var = 5; I just installed a Windows version of Python 2.6 and I was expecting it NOT to let me change type just like that, but the Python equivalent of the above code works just like in PHP yikes! >>> var = "Hello" >>> type(var) <type 'str'> >>> var = 5 >>> type(var) <type 'int'> Is my understanding of weak/strong typing flawed? 回答1: Your example demonstrates dynamic typing, not