Rounding a number up

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G

Guest

Hello,

In C#, how can I roundoff 41.8376 to 41.84? Oh these fields are casted as
double.

Thanks
 
Hi,
if it was me I would do something like:

double d = 41.8376;

Console.WriteLine(Math.Round(d, 2, MidpointRounding.AwayFromZero));

or

Console.WriteLine((int)((d + 0.005) * 100) / 100.0);

Hope that helps
Mark R Dawson
http://www.markdawson.org



Mark
 
Hi Mark,

Thank you for the response. In this case is "d" a variable name? So how
would this work when displaying "d" to an object (such as a label ) on a
form or writing it to a database?
eg.) this writting it to the database: drNewRow["fldSSTax"] = lblSSTax.Text;
and this is displaying it to a label: lblSSTax.Text = SSTax.ToString();

Also can you suggest a really good C# reference book that covers more than
"Teach Yourself Microsoft C#. Net 2003 in 24 Hours"!

Thanks D.
 
Hi,
d in the example was a variable i.e

double d = 12.123;

If I want to write this double value to a label then I need to get the
text representation of the number and assign it to the text property of a
label i.e.

Label myLabel = new Label();
myLabel.Text = d.ToString();

I am not sure of any good beginners guides to C#, I do not own any so I
can't really recommend one, I do have some more advanced books which I liked
and can recommend but these assume some level of knowledge in C#:

Professional C#
http://www.amazon.com/exec/obidos/t...f=sr_1_1/002-7619090-8940005?v=glance&s=books


Pro C# 2005 - this is a really good book but expects you to have a good
understanding of C#
http://www.amazon.com/exec/obidos/t...f=sr_1_9/002-7619090-8940005?v=glance&s=books

I believe there are beginner versions of these books as well which you may
find useful.

Hope that helps
Mark R Dawson
http://www.markdawson.org



CsharpNewcommer said:
Hi Mark,

Thank you for the response. In this case is "d" a variable name? So how
would this work when displaying "d" to an object (such as a label ) on a
form or writing it to a database?
eg.) this writting it to the database: drNewRow["fldSSTax"] = lblSSTax.Text;
and this is displaying it to a label: lblSSTax.Text = SSTax.ToString();

Also can you suggest a really good C# reference book that covers more than
"Teach Yourself Microsoft C#. Net 2003 in 24 Hours"!

Thanks D.
Mark R. Dawson said:
Hi,
if it was me I would do something like:

double d = 41.8376;

Console.WriteLine(Math.Round(d, 2, MidpointRounding.AwayFromZero));

or

Console.WriteLine((int)((d + 0.005) * 100) / 100.0);

Hope that helps
Mark R Dawson
http://www.markdawson.org



Mark
Click to expand...
Click to expand...
 
Thanks Mark,

You've been very helpful. Thanks for the information. I have just one more
question if I may.

Now how would I incorporate the first bits of info you gave,
ie. Console.WriteLine(Math.Round(d, 2, MidpointRounding.AwayFromZero)); or
Console.WriteLine((int)((d + 0.005) * 100) / 100.0);
with, ie. myLabel.Text = d.ToString(); ? Or can I not do this? To be clear,
How do I use the "Math.Round(d, 2, MidpointRounding.AwayFromZero)); with a
myLabel.Text = d.ToString(); ?

Yes, I am a beginner with C# but I have programmed in other languages so I
might be able to comprehend to books you suggested. I just need a really good
reference book that covers most if not EVERYTHING. I know that's too much to
ask for!

Thanks
D.


Mark R. Dawson said:
Hi,
d in the example was a variable i.e

double d = 12.123;

If I want to write this double value to a label then I need to get the
text representation of the number and assign it to the text property of a
label i.e.

Label myLabel = new Label();
myLabel.Text = d.ToString();

I am not sure of any good beginners guides to C#, I do not own any so I
can't really recommend one, I do have some more advanced books which I liked
and can recommend but these assume some level of knowledge in C#:

Professional C#
http://www.amazon.com/exec/obidos/t...f=sr_1_1/002-7619090-8940005?v=glance&s=books


Pro C# 2005 - this is a really good book but expects you to have a good
understanding of C#
http://www.amazon.com/exec/obidos/t...f=sr_1_9/002-7619090-8940005?v=glance&s=books

I believe there are beginner versions of these books as well which you may
find useful.

Hope that helps
Mark R Dawson
http://www.markdawson.org



CsharpNewcommer said:
Hi Mark,

Thank you for the response. In this case is "d" a variable name? So how
would this work when displaying "d" to an object (such as a label ) on a
form or writing it to a database?
eg.) this writting it to the database: drNewRow["fldSSTax"] = lblSSTax.Text;
and this is displaying it to a label: lblSSTax.Text = SSTax.ToString();

Also can you suggest a really good C# reference book that covers more than
"Teach Yourself Microsoft C#. Net 2003 in 24 Hours"!

Thanks D.
Mark R. Dawson said:
Hi,
if it was me I would do something like:

double d = 41.8376;

Console.WriteLine(Math.Round(d, 2, MidpointRounding.AwayFromZero));

or

Console.WriteLine((int)((d + 0.005) * 100) / 100.0);

Hope that helps
Mark R Dawson
http://www.markdawson.org



Mark

:

Hello,

In C#, how can I roundoff 41.8376 to 41.84? Oh these fields are casted as
double.

Thanks
Click to expand...
Click to expand...
Click to expand...
 
Label myLabel = new Label();
double d = 41.8376;
d = Math.Round(d, 2, MidpointRounding.AwayFromZero);
myLabel.Text = d.ToString();


CsharpNewcommer said:
Thanks Mark,

You've been very helpful. Thanks for the information. I have just one more
question if I may.

Now how would I incorporate the first bits of info you gave,
ie. Console.WriteLine(Math.Round(d, 2, MidpointRounding.AwayFromZero)); or
Console.WriteLine((int)((d + 0.005) * 100) / 100.0);
with, ie. myLabel.Text = d.ToString(); ? Or can I not do this? To be clear,
How do I use the "Math.Round(d, 2, MidpointRounding.AwayFromZero)); with a
myLabel.Text = d.ToString(); ?

Yes, I am a beginner with C# but I have programmed in other languages so I
might be able to comprehend to books you suggested. I just need a really good
reference book that covers most if not EVERYTHING. I know that's too much to
ask for!

Thanks
D.


Mark R. Dawson said:
Hi,
d in the example was a variable i.e

double d = 12.123;

If I want to write this double value to a label then I need to get the
text representation of the number and assign it to the text property of a
label i.e.

Label myLabel = new Label();
myLabel.Text = d.ToString();

I am not sure of any good beginners guides to C#, I do not own any so I
can't really recommend one, I do have some more advanced books which I liked
and can recommend but these assume some level of knowledge in C#:

Professional C#
http://www.amazon.com/exec/obidos/t...f=sr_1_1/002-7619090-8940005?v=glance&s=books


Pro C# 2005 - this is a really good book but expects you to have a good
understanding of C#
http://www.amazon.com/exec/obidos/t...f=sr_1_9/002-7619090-8940005?v=glance&s=books

I believe there are beginner versions of these books as well which you may
find useful.

Hope that helps
Mark R Dawson
http://www.markdawson.org



CsharpNewcommer said:
Hi Mark,

Thank you for the response. In this case is "d" a variable name? So how
would this work when displaying "d" to an object (such as a label ) on a
form or writing it to a database?
eg.) this writting it to the database: drNewRow["fldSSTax"] = lblSSTax.Text;
and this is displaying it to a label: lblSSTax.Text = SSTax.ToString();

Also can you suggest a really good C# reference book that covers more than
"Teach Yourself Microsoft C#. Net 2003 in 24 Hours"!

Thanks D.
:

Hi,
if it was me I would do something like:

double d = 41.8376;

Console.WriteLine(Math.Round(d, 2, MidpointRounding.AwayFromZero));

or

Console.WriteLine((int)((d + 0.005) * 100) / 100.0);

Hope that helps
Mark R Dawson
http://www.markdawson.org



Mark

:

Hello,

In C#, how can I roundoff 41.8376 to 41.84? Oh these fields are casted as
double.

Thanks
Click to expand...
Click to expand...
Click to expand...
 
I think it would be only fair to mention NumberFormatting...

such as myLabel.Text = d.ToString("#.00");

that way, the value of "d" doesn't change--only the text representation of
it in the label.

for more info on the numeric formatting, see
http://msdn.microsoft.com/library/d...uide/html/cpconcustomnumericformatstrings.asp

scott



Mark R. Dawson said:
Label myLabel = new Label();
double d = 41.8376;
d = Math.Round(d, 2, MidpointRounding.AwayFromZero);
myLabel.Text = d.ToString();


CsharpNewcommer said:
Thanks Mark,

You've been very helpful. Thanks for the information. I have just one
more
question if I may.

Now how would I incorporate the first bits of info you gave,
ie. Console.WriteLine(Math.Round(d, 2, MidpointRounding.AwayFromZero));
or
Console.WriteLine((int)((d + 0.005) * 100) / 100.0);
with, ie. myLabel.Text = d.ToString(); ? Or can I not do this? To be
clear,
How do I use the "Math.Round(d, 2, MidpointRounding.AwayFromZero)); with
a
myLabel.Text = d.ToString(); ?

Yes, I am a beginner with C# but I have programmed in other languages so
I
might be able to comprehend to books you suggested. I just need a really
good
reference book that covers most if not EVERYTHING. I know that's too much
to
ask for!

Thanks
D.


Mark R. Dawson said:
Hi,
d in the example was a variable i.e

double d = 12.123;

If I want to write this double value to a label then I need to get
the
text representation of the number and assign it to the text property of
a
label i.e.

Label myLabel = new Label();
myLabel.Text = d.ToString();

I am not sure of any good beginners guides to C#, I do not own any so
I
can't really recommend one, I do have some more advanced books which I
liked
and can recommend but these assume some level of knowledge in C#:

Professional C#
http://www.amazon.com/exec/obidos/t...f=sr_1_1/002-7619090-8940005?v=glance&s=books


Pro C# 2005 - this is a really good book but expects you to have a good
understanding of C#
http://www.amazon.com/exec/obidos/t...f=sr_1_9/002-7619090-8940005?v=glance&s=books

I believe there are beginner versions of these books as well which you
may
find useful.

Hope that helps
Mark R Dawson
http://www.markdawson.org



:

Hi Mark,

Thank you for the response. In this case is "d" a variable name? So
how
would this work when displaying "d" to an object (such as a label )
on a
form or writing it to a database?
eg.) this writting it to the database: drNewRow["fldSSTax"] =
lblSSTax.Text;
and this is displaying it to a label: lblSSTax.Text =
SSTax.ToString();

Also can you suggest a really good C# reference book that covers more
than
"Teach Yourself Microsoft C#. Net 2003 in 24 Hours"!

Thanks D.
:

Hi,
if it was me I would do something like:

double d = 41.8376;

Console.WriteLine(Math.Round(d, 2, MidpointRounding.AwayFromZero));

or

Console.WriteLine((int)((d + 0.005) * 100) / 100.0);

Hope that helps
Mark R Dawson
http://www.markdawson.org



Mark

:

Hello,

In C#, how can I roundoff 41.8376 to 41.84? Oh these fields are
casted as
double.

Thanks
Click to expand...
Click to expand...
Click to expand...
 
That's perfect! Thanks for your help

D

Mark R. Dawson said:
Label myLabel = new Label();
double d = 41.8376;
d = Math.Round(d, 2, MidpointRounding.AwayFromZero);
myLabel.Text = d.ToString();


CsharpNewcommer said:
Thanks Mark,

You've been very helpful. Thanks for the information. I have just one more
question if I may.

Now how would I incorporate the first bits of info you gave,
ie. Console.WriteLine(Math.Round(d, 2, MidpointRounding.AwayFromZero)); or
Console.WriteLine((int)((d + 0.005) * 100) / 100.0);
with, ie. myLabel.Text = d.ToString(); ? Or can I not do this? To be clear,
How do I use the "Math.Round(d, 2, MidpointRounding.AwayFromZero)); with a
myLabel.Text = d.ToString(); ?

Yes, I am a beginner with C# but I have programmed in other languages so I
might be able to comprehend to books you suggested. I just need a really good
reference book that covers most if not EVERYTHING. I know that's too much to
ask for!

Thanks
D.


Mark R. Dawson said:
Hi,
d in the example was a variable i.e

double d = 12.123;

If I want to write this double value to a label then I need to get the
text representation of the number and assign it to the text property of a
label i.e.

Label myLabel = new Label();
myLabel.Text = d.ToString();

I am not sure of any good beginners guides to C#, I do not own any so I
can't really recommend one, I do have some more advanced books which I liked
and can recommend but these assume some level of knowledge in C#:

Professional C#
http://www.amazon.com/exec/obidos/t...f=sr_1_1/002-7619090-8940005?v=glance&s=books


Pro C# 2005 - this is a really good book but expects you to have a good
understanding of C#
http://www.amazon.com/exec/obidos/t...f=sr_1_9/002-7619090-8940005?v=glance&s=books

I believe there are beginner versions of these books as well which you may
find useful.

Hope that helps
Mark R Dawson
http://www.markdawson.org



:

Hi Mark,

Thank you for the response. In this case is "d" a variable name? So how
would this work when displaying "d" to an object (such as a label ) on a
form or writing it to a database?
eg.) this writting it to the database: drNewRow["fldSSTax"] = lblSSTax.Text;
and this is displaying it to a label: lblSSTax.Text = SSTax.ToString();

Also can you suggest a really good C# reference book that covers more than
"Teach Yourself Microsoft C#. Net 2003 in 24 Hours"!

Thanks D.
:

Hi,
if it was me I would do something like:

double d = 41.8376;

Console.WriteLine(Math.Round(d, 2, MidpointRounding.AwayFromZero));

or

Console.WriteLine((int)((d + 0.005) * 100) / 100.0);

Hope that helps
Mark R Dawson
http://www.markdawson.org



Mark

:

Hello,

In C#, how can I roundoff 41.8376 to 41.84? Oh these fields are casted as
double.

Thanks
Click to expand...
Click to expand...
Click to expand...
 
Thanks Scott

Your information was very helpful.


D.


Scott Coonce said:
I think it would be only fair to mention NumberFormatting...

such as myLabel.Text = d.ToString("#.00");

that way, the value of "d" doesn't change--only the text representation of
it in the label.

for more info on the numeric formatting, see
http://msdn.microsoft.com/library/d...uide/html/cpconcustomnumericformatstrings.asp

scott



Mark R. Dawson said:
Label myLabel = new Label();
double d = 41.8376;
d = Math.Round(d, 2, MidpointRounding.AwayFromZero);
myLabel.Text = d.ToString();


CsharpNewcommer said:
Thanks Mark,

You've been very helpful. Thanks for the information. I have just one
more
question if I may.

Now how would I incorporate the first bits of info you gave,
ie. Console.WriteLine(Math.Round(d, 2, MidpointRounding.AwayFromZero));
or
Console.WriteLine((int)((d + 0.005) * 100) / 100.0);
with, ie. myLabel.Text = d.ToString(); ? Or can I not do this? To be
clear,
How do I use the "Math.Round(d, 2, MidpointRounding.AwayFromZero)); with
a
myLabel.Text = d.ToString(); ?

Yes, I am a beginner with C# but I have programmed in other languages so
I
might be able to comprehend to books you suggested. I just need a really
good
reference book that covers most if not EVERYTHING. I know that's too much
to
ask for!

Thanks
D.


:

Hi,
d in the example was a variable i.e

double d = 12.123;

If I want to write this double value to a label then I need to get
the
text representation of the number and assign it to the text property of
a
label i.e.

Label myLabel = new Label();
myLabel.Text = d.ToString();

I am not sure of any good beginners guides to C#, I do not own any so
I
can't really recommend one, I do have some more advanced books which I
liked
and can recommend but these assume some level of knowledge in C#:

Professional C#
http://www.amazon.com/exec/obidos/t...f=sr_1_1/002-7619090-8940005?v=glance&s=books


Pro C# 2005 - this is a really good book but expects you to have a good
understanding of C#
http://www.amazon.com/exec/obidos/t...f=sr_1_9/002-7619090-8940005?v=glance&s=books

I believe there are beginner versions of these books as well which you
may
find useful.

Hope that helps
Mark R Dawson
http://www.markdawson.org



:

Hi Mark,

Thank you for the response. In this case is "d" a variable name? So
how
would this work when displaying "d" to an object (such as a label )
on a
form or writing it to a database?
eg.) this writting it to the database: drNewRow["fldSSTax"] =
lblSSTax.Text;
and this is displaying it to a label: lblSSTax.Text =
SSTax.ToString();

Also can you suggest a really good C# reference book that covers more
than
"Teach Yourself Microsoft C#. Net 2003 in 24 Hours"!

Thanks D.
:

Hi,
if it was me I would do something like:

double d = 41.8376;

Console.WriteLine(Math.Round(d, 2, MidpointRounding.AwayFromZero));

or

Console.WriteLine((int)((d + 0.005) * 100) / 100.0);

Hope that helps
Mark R Dawson
http://www.markdawson.org



Mark

:

Hello,

In C#, how can I roundoff 41.8376 to 41.84? Oh these fields are
casted as
double.

Thanks
Click to expand...
Click to expand...
Click to expand...
 
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