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Eavesdropping attacks are often easy to launch, but most people don't worry about them in their applications.
We had to write several lines of code, compile them, and then execute the resulting program, just to obtain the result of a simple sentence written on the screen.
It certainly would have been much faster to type the output sentence ourselves.
The class may also filter HTML data to remove tags and attributes that could be used to perform Cross-Site Scripting (XSS) exploits.
In computer programming, a string is traditionally a sequence of characters, either as a literal constant or as some kind of variable.
The control also works well when bound to a data source.
The Format event on a data binding can be used to reformat incoming data to comply with the mask, and the Parse event can be used to reformat outgoing data to comply with the specifications of the data field. If you want full programmatic control over validation, or need to perform complex validation checks, you should use the validation events built into most Windows Forms controls.If you need to require users to enter data in a well-defined format, such as a telephone number or a part number, you can accomplish this quickly and with minimal code by using the Masked Text Box control.A is a string made up of characters from a masking language that specifies which characters can be entered at any given position in the text box. If the user types an incorrect entry, for example, the user types a letter when a digit is required, the control will automatically reject the input.Let's imagine that I ask you to remember the number 5, and then I ask you to also memorize the number 2 at the same time.You have just stored two different values in your memory (5 and 2).No assumption is made about the nature of the symbols.