changing data in table view on button clicked-iphone - iphone

Question

I am new for iPhone apps development.
In my app when i clicked on search button ,i want to display record in table view.
i m using array to change record in table view but its not working..please help
viewController.m
-(IBAction) printButtonPressed : (id) sender
{
mylabel.text =keyfileld.text;
UITableView *tableView ;
NSIndexPath *indexPath;
mylabel.text =keyfileld.text;
NSString *post =[NSString stringWithFormat:#"username=%#",keyfileld.text];
NSString *hostStr = #"http://demo.com/search_iphone.php?";
hostStr = [hostStr stringByAppendingString:post];
NSData *dataURL = [NSData dataWithContentsOfURL: [ NSURL URLWithString: hostStr ]];
NSString *serverOutput = [[NSString alloc] initWithData:dataURL encoding: NSASCIIStringEncoding];
[states removeObjectForKey:#"1"];
[states removeObjectForKey:#"2"];
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = (UITableViewCell *) [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier];
}
cell.textLabel.text = [datasource objectAtIndex:indexPath.row];
cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
if(serverOutput)
{
NSArray *listItems = [serverOutput componentsSeparatedByString:#"#"];
UIAlertView *alertsuccess = [[UIAlertView alloc] initWithTitle:#"Congrats" message:#"You are authorized"
delegate:self cancelButtonTitle:#"OK" otherButtonTitles:nil, nil];
[alertsuccess show];
mylabel.text = serverOutput;
NSMutableArray *stringArray = [[NSMutableArray alloc] init];
int x=1;
for (int i=0;i<listItems.count; i++)
{
NSString *myString = [NSString stringWithFormat:#"%d",x];
NSArray *listItemsid = [[listItems objectAtIndex:i] componentsSeparatedByString:#","];
NSLog(#"place name at index %d: %#\n", i, [listItemsid objectAtIndex:1]);
[states setObject:[listItemsid objectAtIndex:1] forKey:myString];
x++;
[stringArray insertObject:[NSMutableArray arrayWithObjects:str,nil] atIndex:i];
}
datasource = [states allKeys];
} else {
UIAlertView *alertsuccess = [[UIAlertView alloc] initWithTitle:#"Error" message:#"Username or Password Incorrect"
delegate:self cancelButtonTitle:#"OK" otherButtonTitles:nil, nil];
[alertsuccess show];
// [alertsuccess release];
}
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = (UITableViewCell *) [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier];
}
id aKey = [datasource objectAtIndex:indexPath.row];
cell.textLabel.text = [states objectForKey:aKey];
cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
return cell;
}

Answer 1

Try calling [tableView reloadData]; after loading the new data into the array's...