Question

i m making a client server program in which i want to switch from one view to another but i am getting an error in “clientserverprogram view.m” plz help

"clientserverprogram view.h" 

#import <UIKit/UIKit.h>

@class secondview;

@interface clientserverprogramViewController : UIViewController {

    IBOutlet UITextField *name;
    IBOutlet UITextView *filepath;
    IBOutlet UIButton *print;
    IBOutlet UIButton *settings;
    IBOutlet UIButton *cancel;
    IBOutlet UILabel *display;
    IBOutlet secondview *secondview;
}

-(IBAction) print;
-(IBAction) settings;
-(IBAction) cancel;

@property (nonatomic , retain) IBOutlet UITextField *name;
@property (nonatomic , retain) IBOutlet UITextView *filepath;

@property (nonatomic , retain) IBOutlet UILabel *display;
@end




"clientserverprogram view.m"


#import "clientserverprogramViewController.h"
#import "secondview.h"


@implementation clientserverprogramViewController

@synthesize  name ,filepath,display ;

-(IBAction) print {

    NSString *str = name.text;


    [display setText : str];

}

-(IBAction) settings {


    [self presentModalViewController: secondview animated: YES ];

"" error: expected expression before 'secondview'"" 


}


-(IBAction) cancel {


    exit(0);

}


- (void)dealloc {
    [super dealloc];
}

@end


"secondview.h"


#import <UIKit/UIKit.h>


@interface secondview : UIViewController {

    IBOutlet UIView *view;

    IBOutlet UIButton *back;

}

-(IBAction) back;



@end



""secondview.m""


#import "secondview.h"


@implementation secondview




-(IBAction) back {

    [self.parentViewController dismissModalViewControllerAnimated: YES];
}


- (void)dealloc {
    [super dealloc];
}


@end

Answer 1

[self presentModalViewController: secondview animated: YES ];

"" error: expected expression before 'secondview'""

This line of code is responsible to present modal ViewController. In your case you only had a view. So either you create a controller for the second view like that:

SecondViewController *secondController=[[SecondViewController  alloc] initWithNibName:@"secondView" bundle:[NSBundle mainBundle]];
 [self presentModalViewController:secondController animated: YES ];

or you can load you second view from nib file using outlet and you can add it as subview to your current view controller view:

[self.view addSubView:secondview]; 

Update

As I can see on your code SecondView is your controller not the view, but you are try to present a controller that is not initialized. I also noticed that you have an outlet for your view on SecondView, when you create a new sub class of UIViewController you can check the option that creates a .xib file as well.

Hope that helps,