How to retain a decimal?

[Guest]

Hello.

If a convert a string (string number = "24.45") into a double, using the
Convert class ((double doublenumber = Convert.ToDouble(number)), the result
will have the value 2445.

How do I retain the correct value?

 

[Alvin Bruney [MVP - ASP.NET]]

..net offers the decimal type. use it instead of a double

--
Regards,
Alvin Bruney
[Shameless Author Plug]
The Microsoft Office Web Components Black Book with .NET
available at www.lulu.com/owc, Amazon, B&H etc


Forth-coming VSTO.NET

 

[Guest]

That doesn't help one bit.

decimal decimalnumber = Convert.ToDecimal("25.34");

decimalnumber will have the value 2534 after this. I have tried it already.


This problem that I receive should be quite common.

As example, you have a textbox on a webform, and you need to enter a price
for a product. If you convert the text of the textbox, the problem should
clear:

User entered the value 25.55 into the textbox.
double number = Convert.ToDouble(textbox.text);

number has the value 2555. How to retain the value 25.55 ?

 

[Chris Botha]

This problem that I receive should be quite common.

No, it is not that common, 1st time I've seen this.
put a breakpoint in your code and examine the values, I think you are
passing in "2534".


"the friendly display name"

That doesn't help one bit.

decimal decimalnumber = Convert.ToDecimal("25.34");

decimalnumber will have the value 2534 after this. I have tried it
already.


This problem that I receive should be quite common.

As example, you have a textbox on a webform, and you need to enter a price
for a product. If you convert the text of the textbox, the problem should
clear:

User entered the value 25.55 into the textbox.
double number = Convert.ToDouble(textbox.text);

number has the value 2555. How to retain the value 25.55 ?

..net offers the decimal type. use it instead of a double

--
Regards,
Alvin Bruney
[Shameless Author Plug]
The Microsoft Office Web Components Black Book with .NET
available at www.lulu.com/owc, Amazon, B&H etc


Forth-coming VSTO.NET

 

[Alvin Bruney [MVP - ASP.NET]]

decimal decimalnumber = Convert.ToDecimal("25.34");
provides a value of "25.34".

decimalnumber will have the value 2534 after this. I have tried it
already.

Nope, you could not have possibly tried it!

--
Regards,
Alvin Bruney
[Shameless Author Plug]
The Microsoft Office Web Components Black Book with .NET
available at www.lulu.com/owc, Amazon, B&H etc


Forth-coming VSTO.NET
-------------------------------------------------------------------------------
"the friendly display name"

That doesn't help one bit.

decimal decimalnumber = Convert.ToDecimal("25.34");

decimalnumber will have the value 2534 after this. I have tried it
already.


This problem that I receive should be quite common.

As example, you have a textbox on a webform, and you need to enter a price
for a product. If you convert the text of the textbox, the problem should
clear:

User entered the value 25.55 into the textbox.
double number = Convert.ToDouble(textbox.text);

number has the value 2555. How to retain the value 25.55 ?

..net offers the decimal type. use it instead of a double

--
Regards,
Alvin Bruney
[Shameless Author Plug]
The Microsoft Office Web Components Black Book with .NET
available at www.lulu.com/owc, Amazon, B&H etc


Forth-coming VSTO.NET

 

[Juan T. Llibre]

That's very odd.

When I try it, decimalnumber returns 25.34

That doesn't help one bit.

decimal decimalnumber = Convert.ToDecimal("25.34");

decimalnumber will have the value 2534 after this. I have tried it already.


This problem that I receive should be quite common.

As example, you have a textbox on a webform, and you need to enter a price
for a product. If you convert the text of the textbox, the problem should
clear:

User entered the value 25.55 into the textbox.
double number = Convert.ToDouble(textbox.text);

number has the value 2555. How to retain the value 25.55 ?

..net offers the decimal type. use it instead of a double

--
Regards,
Alvin Bruney
[Shameless Author Plug]
The Microsoft Office Web Components Black Book with .NET
available at www.lulu.com/owc, Amazon, B&H etc


Forth-coming VSTO.NET

 

[Damien]

That doesn't help one bit.

decimal decimalnumber = Convert.ToDecimal("25.34");

decimalnumber will have the value 2534 after this. I have tried it already.


This problem that I receive should be quite common.

As example, you have a textbox on a webform, and you need to enter a price
for a product. If you convert the text of the textbox, the problem should
clear:

User entered the value 25.55 into the textbox.
double number = Convert.ToDouble(textbox.text);

number has the value 2555. How to retain the value 25.55 ?

Sounds like some kind of locale/I18N problem. What happens if you try
to convert "25,55" to decimal?

Damien