NSString variable is not NSstring - iphone

Question

I have a problem with NSString variable.
.h file
NSString *strDeleteFilePath;
#property (nonatomic,retain) NSString* strDeleteFilePath;
.m File
#synthesize strDeleteFilePath;
//After that when delete button click
-(IBAction)deleteButton:(id)sender {
UIButton *bt=(UIButton *)sender;
strDeleteFilePath=[FunctionManager getDocumentDirectoryPath:#"MyPhotos"];
strDeleteFilePath=[NSString stringWithFormat:#"%#/%#",strDeleteFilePath,[arrSaveImage objectAtIndex:bt.tag]];
NSLog(#"strDeletePath=%#",strDeleteFilePath);
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"" message:#"Are you sure you want to delete this photo" delegate:self cancelButtonTitle:#"Delete" otherButtonTitles:#"Cancel", nil];
[alert show];
[alert release];
}
nslog prints proper path in string as below :
strDeletePath=/Users/Samir/Library/Application Support/iPhone
Simulator/6.0/Applications/A72B7488-ABCB-48EC-91D0-CEE87FA121FE/Documents/MyPhotos/Dt20130411164806.png
when click on delete button in alert view...
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{
if (buttonIndex == 0){
NSFileManager *fileManager = [NSFileManager defaultManager];
NSError *error = nil;
if(![fileManager removeItemAtPath:strDeleteFilePath error:&error]) {
NSLog(#"Delete failed:%#", error);
} else {
NSLog(#"image removed: %#", strDeleteFilePath);
}
[self setScrollviewItem];
}
}
it crash on line if(![fileManager removeItemAtPath:strDeleteFilePath error:&error]) and give following error ExE_BAD..ACCESS...
Thank You, in Advance.

Answer 1

Use self. strDeleteFilePath instead of strDeleteFilePath.

Answer 2

Try this
-(IBAction)deleteButton:(id)sender {
UIButton *bt=(UIButton *)sender;
strDeleteFilePath=[FunctionManager getDocumentDirectoryPath:#"MyPhotos"];
strDeleteFilePath=[[NSString alloc] initWithFormat:#"%#/%#",strDeleteFilePath,[arrSaveImage objectAtIndex:bt.tag]]; //change is here
NSLog(#"strDeletePath=%#",strDeleteFilePath);
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"" message:#"Are you sure you want to delete this photo" delegate:self cancelButtonTitle:#"Delete" otherButtonTitles:#"Cancel", nil];
[alert show];
[alert release];
}

Answer 3

replace this :
if(![fileManager removeItemAtPath:strDeleteFilePath error:&error]) {
NSLog(#"Delete failed:%#", error);
} else {
NSLog(#"image removed: %#", strDeleteFilePath);
}
with:
if([fileManager fileExistsAtPath: strDeleteFilePath])
{
[fileManager removeItemAtPath: strDeleteFilePath error: nil];
}
else{
NSLog(#"File not found");
}