what to use: decimal or float for a variable

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I would like to know what exactly to use in my following code:

float v_tax = Convert.ToInt32(ds.Tables[0].Rows[i]["tax"]);

The 'tax' is a float datatype holding 12.55 as data.
During run time the variable v_tax is having value as 13 instead of 12.55.

Can anyone please guide me.
Regards.

Posted 2-Apr-13 6:56am

S.Rajendran from Coimbatore

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[no name] 2-Apr-13 13:05pm

"value as 13 instead of 12.55" that is because you are converting the value to an integer, "Convert.ToInt32"

2 solutions

Solution 2

Precision is the main difference between double and float. Decimal has more precision that float.
Try using float.

Posted 2-Apr-13 7:06am

Abhinav S

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Thomas Daniels · Accepted Answer · 2013-04-02T07:05:00

Solution 1

Hi,

Use the Convert.ToSingle method[^] instead of the Convert.ToInt32 method:

C#

float v_tax = Convert.ToSingle(ds.Tables[0].Rows[i]["tax"]);

Posted 2-Apr-13 7:05am

Thomas Daniels