linq avoiding foreach loop

Nagendra Panyam

can any one say how to avoid foreach loop because drive letter is compared to all drives ithink its laggs my application

public static bool IsDriveReady(char driveLetter)

{

DriveInfo[] allDrives = DriveInfo.GetDrives();

foreach (DriveInfo driveInfo in allDrives)

{

char drive = driveInfo.Name.ToUpper(CultureInfo.InvariantCulture)[0];

if (drive.CompareTo(driveLetter) == 0)

{

return driveInfo.IsReady;

}

return false;

}

4 Replies

Know the answer? Post it — somebody with the same question will find it here.

Madan Shekar7y ago
Accepted answer
observ type of the data first .
you cannot convert directly .
In my first answer if go through by debug mode you will come to know
Salman Beg7y ago
Hi. The error is saying that you are trying to convert char to string and which is not possible. So you can put a debugger and check where you are converting char to string and rectify the code. Thanks.
Nagendra Panyam7y ago
if (SystemDataLib.IsDriveReady(disk.AssignedDriveLetter.ToCharArray()[0]))
am returning after that to above how may get resolve the fallowing error
can not convert char to string
Madan Shekar7y ago
public static bool IsDriveReady(string drivename_in_stringformat)

{

DriveInfo[] allDrives = DriveInfo.GetDrives();

string replacechar = @":\";

int count = allDrives.AsEnumerable().Where(x => x.Name.Replace(replacechar, "") == drivename_in_stringformat).Count();

if (count == 1)

{

return true;

}

return false;

}

Note :- use these name spaces

using System.Linq;

using System.Collections;