CONVERSION strin to number

Question

1.50/5 (2 votes)

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C#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
class converstion
{

    public static void Main(string[] args)
{
string s1="sidd";
string s2="siddh";



double da=Convert.ToDouble(s1);
double d=Convert.ToDouble(s2);
Console.WriteLine("converte string is={0}",da);
Console.WriteLine("converte string is={1}", d);

}

}

it compile successfullly but not run...error "Unhandel Exceptuon:System.FormatException:input string was not in a correct formate

Posted 27-Sep-12 23:35pm

siddharth629

Updated 27-Sep-12 23:46pm

v2

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Comments

JF2015 28-Sep-12 5:38am

You are trying to convert the string "sidd" to a double - how is this supposed to work?

Abhijit Parab 28-Sep-12 5:39am

how a string can be converted into double data type. Are you aware of the Data types and type casting?

CPallini 28-Sep-12 5:45am

You should use the MagicConvert.ToDouble() method, I suppose

siddharth629 28-Sep-12 6:04am

lol

4 solutions

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nagendrathecoder · Accepted Answer · 2012-09-27T23:40:00

Solution 1

Exception is correct. How can you convert a string like "sidd" to a double.
Try converting "10" to double, it will work.

Posted 27-Sep-12 23:40pm

nagendrathecoder

Comments

siddharth629 28-Sep-12 5:45am

sir is it is possible to convert a string into integer . like "sid" to integer

nagendrathecoder 28-Sep-12 5:46am

You cannot convert string like "sid" to an integer, not even in imagination.

Vignesh.J · Accepted Answer · 2012-09-27T23:54:00

Solution 4

If u want to convert a string to a number , the values of the string must be number.

Eg : string str = "445"; // Possible
string str = "abcd"; // Not Possible

Posted 27-Sep-12 23:54pm

Vignesh.J

Rahul saraswat · Accepted Answer · 2012-09-27T23:45:00

Solution 2

Hi Siddharth,
try to understand. you can not change this type of string value into double. beacuse this is real string. How can you change your name into double. is this possible. You can do this...

C#

String str="50";
double doubleValue=Convert.ToDouble(str);

and now it will return you to a double value....

Regards Rahul

Posted 27-Sep-12 23:45pm

Rahul saraswat

Comments

siddharth629 28-Sep-12 5:48am

thanks sir

Herman<T>.Instance · Accepted Answer · 2012-09-27T23:52:00

You can use the TryParse methods
so your code should look like:

C#

public static void Main(string[] args)
{
string s1="sidd";
string s2="siddh";

double da= = 0;
double d=0;
if (Double.TryParse(s1, out da))
    Console.WriteLine("converte string is={0}",da);
if (Double.TryParse(s2, out d)
    Console.WriteLine("converte string is={0}", d);

}

This mans that if the conversion fails da and d have value 0 otherwise the converted value

CONVERSION strin to number

4 solutions

Solution 1

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Solution 2

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