


Tutorial on handling return values in .NET MyMVC framework
The time when the MyMVC framework processes the return value is in the ExecuteAction method (there is that code in front).
Here is just a simple additional explanation.
I defined an interface for the result of Action:
public interface IActionResult{ void Ouput(HttpContext context);}
Four types of ActionResult are implemented in the framework:
/// <summary> /// 表示一个用户控件结果(用户控件将由框架执行)/// </summary>public sealed class UcResult : IActionResult/// <summary> /// 表示一个重定向的结果/// </summary>public sealed class RedirectResult : IActionResult/// <summary> /// 一个Json对象结果/// </summary>public sealed class JsonResult : IActionResult/// <summary> /// 表示一个页面结果(页面将由框架执行)/// </summary>public sealed class PageResult : IActionResult
When you want to output the return value, not only use With the IActionResult interface, I also use the following call:
context.Response.Write(result.ToString());
Don’t underestimate the ToString() call.
For custom data types , you can use it to control whether the final output to the client is JSON or XML, or your own defined text serialization format. (For example: spliced together with special delimiters), therefore, it has enough ability to replace the JsonResult type, and it also does not affect the unit test of Action.
The power of ToString() is that it is a virtual method and can be overridden by derived classes.
So, if you only plan to return a data entity object to the client, you can either implement the IActionResult interface or override the ToString method.
【Related Recommendations】
1. Special Recommendation: "php Programmer Toolbox" V0.1 version download
3. Entry-level .NET MVC example
4. MyMVC frame’s detailed explanation of the process of finding Action
5. .NET MyMVC frame’s detailed explanation of the process of executing Action
6. .NET MyMVC framework tutorial on how to assign values to methods
The above is the detailed content of Tutorial on handling return values in .NET MyMVC framework. For more information, please follow other related articles on the PHP Chinese website!

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics

The usage methods of symbols in C language cover arithmetic, assignment, conditions, logic, bit operators, etc. Arithmetic operators are used for basic mathematical operations, assignment operators are used for assignment and addition, subtraction, multiplication and division assignment, condition operators are used for different operations according to conditions, logical operators are used for logical operations, bit operators are used for bit-level operations, and special constants are used to represent null pointers, end-of-file markers, and non-numeric values.

In C, the char type is used in strings: 1. Store a single character; 2. Use an array to represent a string and end with a null terminator; 3. Operate through a string operation function; 4. Read or output a string from the keyboard.

In C language, special characters are processed through escape sequences, such as: \n represents line breaks. \t means tab character. Use escape sequences or character constants to represent special characters, such as char c = '\n'. Note that the backslash needs to be escaped twice. Different platforms and compilers may have different escape sequences, please consult the documentation.

The difference between multithreading and asynchronous is that multithreading executes multiple threads at the same time, while asynchronously performs operations without blocking the current thread. Multithreading is used for compute-intensive tasks, while asynchronously is used for user interaction. The advantage of multi-threading is to improve computing performance, while the advantage of asynchronous is to not block UI threads. Choosing multithreading or asynchronous depends on the nature of the task: Computation-intensive tasks use multithreading, tasks that interact with external resources and need to keep UI responsiveness use asynchronous.

In C language, the main difference between char and wchar_t is character encoding: char uses ASCII or extends ASCII, wchar_t uses Unicode; char takes up 1-2 bytes, wchar_t takes up 2-4 bytes; char is suitable for English text, wchar_t is suitable for multilingual text; char is widely supported, wchar_t depends on whether the compiler and operating system support Unicode; char is limited in character range, wchar_t has a larger character range, and special functions are used for arithmetic operations.

In C language, char type conversion can be directly converted to another type by: casting: using casting characters. Automatic type conversion: When one type of data can accommodate another type of value, the compiler automatically converts it.

char and unsigned char are two data types that store character data. The main difference is the way to deal with negative and positive numbers: value range: char signed (-128 to 127), and unsigned char unsigned (0 to 255). Negative number processing: char can store negative numbers, unsigned char cannot. Bit mode: char The highest bit represents the symbol, unsigned char Unsigned bit. Arithmetic operations: char and unsigned char are signed and unsigned types, and their arithmetic operations are different. Compatibility: char and unsigned char

Errors and avoidance methods for using char in C language: Uninitialized char variables: Initialize using constants or string literals. Out of character range: Compare whether the variable value is within the valid range (-128 to 127). Character comparison is case-insensitive: Use toupper() or tolower() to convert character case. '\0' is not added when referencing a character array with char*: use strlen() or manually add '\0' to mark the end of the array. Ignore the array size when using char arrays: explicitly specify the array size or use sizeof() to determine the length. No null pointer is not checked when using char pointer: Check whether the pointer is NULL before use. Use char pointer to point to non-character data
