Generate CSV file for Export the datas’s

.h File

UIAlertView *Alert;

BOOL mail_status;

.m File:

-(void)Generate_CSV

{

    NSString *csv_values = [NSString stringWithFormat:@“Names”];   

NSString *string_heading =@"Others”;

    csv_values = [NSString stringWithFormat:@"%@, ""%@""", csv_values,string_heading];

    

    for (int i=0; i<[Array count]; i++)

    {

        NSString *str_products = [Array objectAtIndex:i];

        str_products = [str_products stringByReplacingOccurrencesOfString:@" " withString:@""];

        csv_values = [NSString stringWithFormat:@"%@, ""\n""""%@""", csv_values,str_products];

    }

    

    if (mail_status)

    {

        NSData *csv_data = [csv_values dataUsingEncoding:NSUTF8StringEncoding];

        

        if ( [MFMailComposeViewController canSendMail] )

        {

            MFMailComposeViewController *mailComposer = [[MFMailComposeViewController alloc] init];

            mailComposer.mailComposeDelegate = self;

            [mailComposer addAttachmentData:csv_data mimeType:@"text/csv" fileName:@"results.csv"];

            [mailComposer setSubject:@"Results CSV File”];

            

            [self presentViewController:mailComposer animated:YES completion:NULL];

        }
        else

        {

              UIAlertView* alert=[[UIAlertView alloc]initWithTitle:@"No Mail Accounts" message:@"Please set up a Mail account in order to send email." delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil];

               [alert show];

        }

    }

    

    else

    {

        NSString *file = @"/results.csv";

        NSArray *arrayPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);

        NSString *docDirectory = [arrayPaths objectAtIndex:0];

        NSString *filePaths = [docDirectory stringByAppendingString:file];

        [csv_values writeToFile:filePaths atomically:YES encoding:NSUTF8StringEncoding error:nil];

        

        [self open_csv];

    }

}

- (void) mailComposeController:(MFMailComposeViewController *)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError *)error

{

    switch (result)

    {

        case MFMailComposeResultCancelled:

            NSLog(@"Mail cancelled");

            Alert = [[UIAlertView alloc]initWithTitle:@"Message" message:@"E-Mail Cancelled" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];

            [Alert show];

            break;

        case MFMailComposeResultSaved:

            NSLog(@"Mail saved");

            Alert = [[UIAlertView alloc]initWithTitle:@"Message" message:@"E-Mail Saved" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];

            [Alert show];

            break;

        case MFMailComposeResultSent:

            NSLog(@"Mail sent");

            Alert = [[UIAlertView alloc]initWithTitle:@"Message" message:@"E-Mail Sent" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];

            [Alert show];

            break;

        case MFMailComposeResultFailed:

            NSLog(@"Mail sent failure: %@", [error localizedDescription]);

            Alert = [[UIAlertView alloc]initWithTitle:@"Message" message:@"E-Mail Sending Failed" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];

            [Alert show];

            break;

        default:

            break;

    }

    

    // Close the Mail Interface

    [self dismissViewControllerAnimated:YES completion:NULL];

}

-(void)open_csv

{

    csv_view.hidden = NO;

    csv_view.layer.masksToBounds = YES;

    

    //Show the Excel in WebView

    NSString *file = @"/results.csv";

    NSArray *arrayPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);

    NSString *docDirectory = [arrayPaths objectAtIndex:0];

    NSString *filePath = [docDirectory stringByAppendingString:file];

    if (filePath)

    {

        NSURL *url=[NSURL fileURLWithPath:filePath];

        NSURLRequest *req=[NSURLRequest requestWithURL:url];

        [csv_content loadRequest:req]; //csv_content -- WebView

    }

}

-(IBAction)csv_close:(id)sender

{

    csv_view.hidden = YES;

}