hexadecimal conversion

[aswd]

hii all..i want the user to enter hexedecimal valuein the text box, so i need to convert it..but i dont know how..anyone can help me plss this is my email: hafizul_10422@yahoo.com :)

[Ashutosh Phoujdar]

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[aswd]

how to validate the hexadecimal value?? thanks for ur help!!

[Alan N]

Hi, You can use the Parse or TryParse methods of the number types to do the conversion. This fragment in c# should get you started.

  String userInput = "ab7f";
  Int64 value = Int64.Parse(userInput, System.Globalization.NumberStyles.HexNumber);

Alan N

[riced]

What do want to convert it to? The assumption is that it's to integer but it could be to character or binary or unicode. E.g. 4C hex goes to: integer 76 binary 01001100 ASCII L EBCDIC <<br mode="hold" /> You really need to be specific when asking questions.

[aswd]

I’m stuck on how to enter a HEX number into a text box

[Guffa]

Strictly speaking, what you are asking for is actually not possible. There is nu such thing as a hexadecimal numbe, you either have a number or the hexadecimal textual representation of a number. Converting the textual representation into a number is called parsing. Entering the hexadecimal textual representation of the number in a textbox is easy. Make sure that the textbox has focus (you will see the blinking caret in the tectbox), then you just push keys on the keyboard to enter characters in the textbox. Valid characters for the hexadecimal representation are the digits 0 to 9 and the letters A to F. The letters can be either upper case or lower case.

Despite everything, the person most likely to be fooling you next is yourself.