Question

String Format c#

Asked by: saswati_m

I am getting a decimal field from the database say 45.693043. I want to convert it to String and then format it to 4 decimal places . I was originally doing like this
string interestRate = ds.Tables[0].Rows[i]["IntRate"].ToString().Trim();
string intRate = String.Format("{0:0.0000}", interestRate );
I have tried String.Format("{0:F2}", interestRate ); and N2 ...did not work ...keeps me the original string...

                           

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Asked On
2007-12-19 at 13:38:16ID23034619
Tags

format

,

string

Topics

WebApplications

,

Web Development Software

Participating Experts
2
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125
Comments
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Answers

 

by: imitchiePosted on 2007-12-19 at 14:01:47ID: 20503378

string interestRate = Math.Round(ds.Tables[0].Rows[i]["IntRate"],4).ToString();

 

by: imitchiePosted on 2007-12-19 at 14:09:12ID: 20503433

missing one thing

string interestRate = String.Format("{0:0.0000}", Math.Round(ds.Tables[0].Rows[i]["IntRate"],4));

 

by: saswati_mPosted on 2007-12-19 at 18:05:22ID: 20504478

But if I have a number like 567.89598905 it will round it off to 567.896 and I do not want that ..the number should be displayed uptil 4 places of decimal.

 

by: imitchiePosted on 2007-12-19 at 18:10:19ID: 20504491

The String.Format in the 2nd comment does that. Your number must first be reduced to 4dp using round

 

by: saswati_mPosted on 2007-12-20 at 07:24:33ID: 20507283

I tried your solution..
String.Format("{0:0.0000}", Math.Round(ds.Tables[0].Rows[i]["IntRate"],4));

it gives me the error ..cannot convert from object to double ..Math.Round does not work with objects .

 

by: imitchiePosted on 2007-12-20 at 11:31:18ID: 20509212

String.Format("{0:0.0000}", Math.Round(((double)ds.Tables[0].Rows[i]["IntRate"]),4));

.. more casting..

 

by: saswati_mPosted on 2007-12-20 at 11:50:40ID: 20509371

have you yourself tried this ?

 

by: imitchiePosted on 2007-12-20 at 12:06:29ID: 20509498

I don't have a table with an IntRate, or the time to construct it elaborately.
You can work with me on this, or you can wait for someone to get a fully working, QA tested solution for you if it's not pressing.  If there was an error, you could tell me.

String.Format("{0:0.0000}", Convert.ToDouble(ds.Tables[0].Rows[i]["IntRate"].ToString()));

If it cannot be explicitly cast to double, it could be because it's SQLDouble, not Double. Regardless of what it is (string/double/decimal), just retrieve it as string, and casting back to double.

 

by: saswati_mPosted on 2007-12-20 at 12:27:34ID: 20509637

Thanks..but we figured it out.

 

by: saswati_mPosted on 2008-03-20 at 12:42:43ID: 21175075

please delete the question

 

by: Vee_ModPosted on 2008-03-25 at 05:39:39ID: 21201264

Force accepted.
Vee_Mod
Community Support Moderator

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