I have the need to preserve the precision of a user-entered number, but that
needs to be stored in a (non-string) floating point variable (such as double or
decimal). Due to the internal limitations of numerical precision of the double
type, I'm presuming that the value will be stored in a decimal for the time
being.
Supposing the following:
decimal d1 = 123.45;
decimal d2 = 888.1234567;
decimal d3 = 677.100;
decimal d4 = 1.0;
Now, when converting to string, I want the following:
string s1 = d1.ToString(/*format???*/); // Should be "123.45"
string s2 = d2.ToString(/*format???*/); // Should be "888.123456 7"
string s3 = d3.ToString(/*format???*/); // Can be "677.1"
string s4 = d4.ToString(/*format???*/); // Should be "1";
I don't want s1 to be something like:
"123.450000 00"
and I don't want s2 to be truncated to something like:
"888.123"
Get what I'm after? Is there a format string that will handle this?
If not, what I currently have is to simply string.Trim("0" ) the trailing zeros
and then string.Trim("." ) to trim a lagging decimal.
1  3906 
Julie wrote:
I have the need to preserve the precision of a user-entered number, but that
needs to be stored in a (non-string) floating point variable (such as double or
decimal). Due to the internal limitations of numerical precision of the double
type, I'm presuming that the value will be stored in a decimal for the time
being.
Supposing the following:
decimal d1 = 123.45;
decimal d2 = 888.1234567;
decimal d3 = 677.100;
decimal d4 = 1.0;
Now, when converting to string, I want the following:
string s1 = d1.ToString(/*format???*/); // Should be "123.45"
string s2 = d2.ToString(/*format???*/); // Should be "888.123456 7"
string s3 = d3.ToString(/*format???*/); // Can be "677.1"
string s4 = d4.ToString(/*format???*/); // Should be "1";
I don't want s1 to be something like:
"123.450000 00"
and I don't want s2 to be truncated to something like:
"888.123"
Get what I'm after? Is there a format string that will handle this?
If not, what I currently have is to simply string.Trim("0" ) the trailing zeros
and then string.Trim("." ) to trim a lagging decimal.
Found the answer myself. A format string of "G" looks like the solution, just
didn't see it first time around in the string formatting docs. This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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I have the need to preserve the precision of a user-entered number, but that
needs to be stored in a (non-string) floating point variable (such as double or
decimal). Due to the internal limitations of numerical precision of the double
type, I'm presuming that the value will be stored in a decimal for the time
being.
Supposing the following:
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