How to compare two strings in C#

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Hello,
Can any one please tell me what is the best way to compare two strings in C#, the result of comparision must be true or false.
Actually i am using
((Microsoft.Office.Interop.Excel.Range)workSheet.Cells[IDIndexRow, ObjTypeCol]).Value2.ToString)) == "ID")
But this doesnt seems to work. it seems like there is some problem with conversion.

Posted 29-Jun-10 17:47pm

asjadazeez

Updated 29-Jun-10 18:02pm

v2

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3 solutions

Solution 1

you can use any of the below methods.
string s1="abc";
string s2="abc";

//using if else
if(s1 == s2)
return true;
else

return false;

//using ternary operator
bool cmp = ((s1==s2)?true:false);

Posted 29-Jun-10 17:56pm

Shining Legend

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asjadazeez 30-Jun-10 0:04am

Actually i am using (Microsoft.Office.Interop.Excel.Range)workSheet.Cells[IDIndexRow, ObjTypeCol]).Value2.ToString) == "ID") but some type conversion problem can you please hemp me out.

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**JF2015** · Accepted Answer · 2010-06-29T17:59:00

Solution 2

Hi,

string.equals(string) should do the trick and is the preferred way to go

string str = "Hello"; string str2 = "Hello"; bool bResult = str.Equals(str2);

Posted 29-Jun-10 17:59pm

JF2015

Comments

asjadazeez 30-Jun-10 0:04am

Actually i am using (Microsoft.Office.Interop.Excel.Range)workSheet.Cells[IDIndexRow, ObjTypeCol]).Value2.ToString) == "ID") but some type conversion problem can you please hemp me out.

asjadazeez 30-Jun-10 0:15am

OK this works fine.

hammerstein05 · Accepted Answer · 2010-06-29T18:05:00

Solution 3

From what I know, have tried, and have read around the internets

String.Equals(string) [The standard String.Equals]

and

==

Are essentially the same thing. I prefer to use the following in a lot of cases though (if I'm not sure and don't want to mess around with case);

string.Equals( string, StringComparison.CurrentCultureIgnoreCase )

Posted 29-Jun-10 18:05pm

hammerstein05

Comments

asjadazeez 30-Jun-10 0:15am

Thanks for additional info.!