Introduction to Browser Caching and .htaccess In the dynamic world of web development, the quest for speed and efficiency is unending. One of the pivotal elements in this quest is browser caching, a mechanism that, when harnessed correctly, can significantly enhance the user experience by speeding up webpage loading times. At the heart of implementing […]
Controlling Access Based on Time and Date with .htaccess
Introduction In the ever-evolving landscape of web security, one of the critical aspects that website administrators must address is access control. Controlling who can access your website and when they can do so is fundamental to ensuring the safety of your digital assets and sensitive information. To achieve this level of control, we turn to […]
Comprehensive Guide to Preventing Image Hotlinking Using .htaccess
Introduction to Image Hotlinking Image hotlinking is an online phenomenon often overlooked but significantly impacts website owners and web servers. At its core, hotlinking occurs when external websites link directly to the images on your server, rather than uploading and hosting the images on their own servers. This practice might seem harmless at first glance, […]
Blocking Users by User-Agent with .htaccess
Introduction to .htaccess for Website Security The ’.htaccess’ file, a crucial yet often understated component of website administration, serves as a gateway to robust security and user access control. Originating from “Hypertext Access,” this hidden file on Apache servers is a linchpin in customizing server behavior, particularly in enhancing website security. The Role of .htaccess […]
Advanced .htaccess Tricks for Web Developers: Enhancing Performance and Security
Introduction to .htaccess In the realm of web development, the .htaccess file stands as a pivotal yet often underutilized tool. Primarily used on Apache web servers, this configuration file offers a wide array of possibilities to enhance the performance, security, and functionality of websites. Understanding and mastering .htaccess can significantly elevate the capabilities of a […]
Get the clicked button of a MessageBox using DialogResult
The MessageBox dialog can contain several buttons: OK, Cancel, Yes, No, Retry and so on. The question is how do you figure out which of the buttons was clicked? If OK was clicked, you want to take a different action than if Cancel was clicked. The solution is to use the DialogResult object: DialogResult dlgResult = MessageBox.Show(“Do you want to continue?”, “Continue?”, MessageBoxButtons.YesNo, MessageBoxIcon.Question);if […]
How to use #ifdef and #ifndef to check if an identifier has been defined
#ifdef, #ifndef and #endif are preprocessor directives which allow us to check wether or not a value has already been defined using the #define directive. This can be useful when you’re including files that may already have the same value defined using #define. Here’s an example that defines the value Whidbey only if it wasn’t defined before: #ifndef Whidbey#define Whidbey#endif Similarly, what’s between #ifdef and #endif is compiled […]
AutoPostBack – How to submit (PostBack) page when a DropDownList item is selected
Thanks to the AutoPostBack attribute, you can easily submit the form when the user selects an item from a DropDownList. All you need to do is set the AutoPostBack attribute to true inside the DropDownList tag, as seen in the following example:
How to convert C++ variables to other data types using casting
There are several ways to convert C++ variables.Here is one method of converting an integer variable to a bool (boolean) variable: int MyInteger = 0;bool MyBool = (bool)MyInteger; And here is another way: int MyInteger = 0;bool MyBool = static_cast<bool>(MyInteger); In both cases, after the casting has been made, MyBool will contain the value false (since MyInteger was 0). If MyInteger was 1 or any other number […]
How to convert a variable from double to float
A variable of type double can easily be converted to float or any other similar data type, in C#: