Operator '==' cannot be applied to operands of type 'string' and 'int'

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5.00/5 (1 vote)

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hi all,

C++

string[] result=new string [4];
      string accessnumber = null;
      accessnumber = "";
      result = clsObj.FnCheckAccessNo();
      if (result[0] == 1)
      {
          accessnumber = result[2];
      }

Am try to use this condition it shows the follwing error, please let me know if anybody knows..

Operator '==' cannot be applied to operands of type 'string' and 'int'

Source Error:

Line 160: accessnumber = "";
Line 161: result = clsObj.FnCheckAccessNo();
Line 162: if (result[0] == 1)
Line 163: {
Line 164: accessnumber = result[2];

Posted 27-Sep-12 2:18am

stellus

Updated 27-Sep-12 2:23am

Legor

v2

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Legor 27-Sep-12 9:02am

Please accept one of the answers below.

10 solutions

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**Zoltán Zörgő** · Answer 1 · 2012-09-27T02:20:00

Solution 1

As result is an array of strings, result[0] is a string. 1 is an int literal. It is normal, that you can not compare them.
What about: if (result[0] == "1") ?

Posted 27-Sep-12 2:20am

Zoltán Zörgő

Updated 27-Sep-12 2:21am

v2

Legor · Answer 2 · 2012-09-27T02:22:00

There is not much to add since the error message allready says it all...
You can no compare a String with an Integer using the == operator.
What is it you want to achieve?

You can compare two numbers like

C++

int a = 0;
if (a == 0) ...

or two Strings

C++

string word  = "Hello";
if (word == "Bark") ...

but not

C++

if (a == word)

...

Maybe now you see what is wrong in your code?

Aarti Meswania · Answer 3 · 2012-09-27T02:46:00

Solution 5

C#

if (result[0] == (1).ToString())

or

C#

if (result[0] == "1")

Happy Coding!
:)

Posted 27-Sep-12 2:46am

Aarti Meswania

prashant_khairnar · Answer 4 · 2012-09-27T02:55:00

Hello,

Please try below corrected one :

C#

string[] result=new string [4];
            string accessnumber = null;
            accessnumber = "";
            result = clsObj.FnCheckAccessNo();
            if ( Convert.ToString(result[0]) == Convert.ToString(1))
            {
                accessnumber = result[2];
            }

Please let us know if any.

mksharma38 · Answer 5 · 2012-09-27T02:55:00

Solution 7

use following code
Put 1 inside "" or use 1.tostring()

if (result[0] == "1")

or

if (result[0] == 1.toString())

Posted 27-Sep-12 2:55am

mksharma38

vasim sajad · Answer 6 · 2012-09-27T02:59:00

Solution 8

you cant compare different datatypes
so convert any comparing datatype

C#

if (result[0] == Convert.ToString(1))
  {
    accessnumber = result[2];
  }

Posted 27-Sep-12 2:59am

vasim sajad

amolpatil2243 · Answer 7 · 2012-09-27T03:05:00

Cast right side string to integer if function returns numeric values

C#

string[] result=new string [4];
            string accessnumber = null;
            accessnumber = "";
            result = clsObj.FnCheckAccessNo();
            if ( int.parse(result[0]) == 1)
            {
                accessnumber = result[2];
            }

haitrieu749 · Answer 8 · 2012-09-27T02:35:00

Solution 4

To compare string you can use

C#

string.Compare(string s1)

In C# :D

Posted 27-Sep-12 2:35am

haitrieu749

Updated 27-Sep-12 2:36am

v2

Bhushan Shah1988 · Answer 9 · 2012-09-28T03:12:00

Solution 10

you can use

result[0].Equals("1")

Regards,
Bhushan Shah

Posted 28-Sep-12 3:12am

Bhushan Shah1988

wings_ · Answer 10 · 2012-09-27T02:26:00

Solution 3

If you wants compare two string then use

C#

a==b

and if u wants to assign the value use

C#

a=b

Posted 27-Sep-12 2:26am

wings_

Updated 27-Sep-12 2:40am

v2

Comments

Legor 27-Sep-12 8:34am

There is a mistake in your solution: "a===b"

stellus 27-Sep-12 8:35am

thanks for give me a drop of solutions , now its working fine...

wings_ 27-Sep-12 8:40am

ok thanks