UITextField display issue in TableView cell - ios

Question

I created at least 10 cells with each UITextField on it, for registration page. When I insert the words on the textfield in the first cell, and when I scrolled the tableView, the textfield which is in another cell show up the word that I just typed.
Below is my code. The textField data which I input is looping, which is caused by dequeueReusableCellWithIdentifier... How can I solve this problem? Thank you very much.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = #"RCell";
RegisterCell *cell = (RegisterCell *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil)
cell = [[[RegisterCell alloc] initWithFrame:CGRectMake(0, 0, 280, 44) reuseIdentifier:CellIdentifier] autorelease];
if(indexPath.section == 0){
NSDictionary *rowData = [self.regisLabel objectAtIndex:[indexPath row]];
NSString *mainLabel = [NSString stringWithFormat:#"%#", [rowData objectForKey:#"regisLbl"]];
cell.registerLabel.text = mainLabel;
UITextField *valTxtField = [[UITextField alloc] initWithFrame:CGRectMake(120, 5, 180, 30)];
valTxtField.font = [UIFont fontWithName:#"Futura-CondensedExtraBold" size:18.0];
valTxtField.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter;
valTxtField.delegate = self;
valTxtField.returnKeyType = UIReturnKeyDone;
valTxtField.autocorrectionType = UITextAutocorrectionTypeNo;
valTxtField.autocapitalizationType = UITextAutocapitalizationTypeNone;
if(indexPath.row == 0)
{
valTxtField.text = #"";
emailTxtFld = valTxtField; //emailTxtFld is global variable
}
if(indexPath.row == 1)
{
valTxtField.text = #"";
reEmailTxtFld = valTxtField; //reEmailTxtFld is global variable
}
[cell.contentView addSubview:valTxtField];
[valTxtField release];
}
else if(indexPath.section == 1){
NSDictionary *rowData = [self.regisLabel objectAtIndex:[indexPath row]+10];
NSString *mainLabel = [NSString stringWithFormat:#"%#", [rowData objectForKey:#"regisLbl"]];
cell.registerLabel.text = mainLabel;
cell.registerTextField.enabled = NO;
}
else if(indexPath.section == 2){
if(indexPath.row == 0){
NSDictionary *rowData = [self.regisLabel objectAtIndex:[indexPath row]+11];
NSString *mainLabel = [NSString stringWithFormat:#"%#", [rowData objectForKey:#"regisLbl"]];
cell.registerLabel.text = mainLabel;
cell.registerTextField.enabled = NO;
}
}
return cell;
}

Answer 1

An easy way is to just remove all subviews from the cells contentView before you add subviews, example:
for (UIView *subview in [cell.contentView subviews])
[subview removeFromSuperview];
A more efficient way would be to do all the creation of cells inside the if (cell == nil) statement, but that depends on how many cells you have in the table.

Answer 2

The right implementation is to move the creation of any view whithin if (cell == nil)
Like so:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = #"RCell";
RegisterCell *cell = (RegisterCell *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier];
UITextField *valTxtField;
if (cell == nil)
{
cell = [[[RegisterCell alloc] initWithFrame:CGRectMake(0, 0, 280, 44) reuseIdentifier:CellIdentifier] autorelease];
if(indexPath.section == 0){
valTxtField = [[UITextField alloc] initWithFrame:CGRectMake(120, 5, 180, 30)];
valTxtField.font = [UIFont fontWithName:#"Futura-CondensedExtraBold" size:18.0];
valTxtField.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter;
valTxtField.delegate = self;
valTxtField.returnKeyType = UIReturnKeyDone;
valTxtField.autocorrectionType = UITextAutocorrectionTypeNo;
valTxtField.autocapitalizationType = UITextAutocapitalizationTypeNone;
valTxtField.tag = 100;
[cell.contentView addSubview:valTxtField];
[valTxtField release];
}
}
valTxtField = (UITextField *)[cell.contentView viewWithTag:100];
if(indexPath.section == 0){
NSDictionary *rowData = [self.regisLabel objectAtIndex:[indexPath row]];
NSString *mainLabel = [NSString stringWithFormat:#"%#", [rowData objectForKey:#"regisLbl"]];
cell.registerLabel.text = mainLabel;
if(indexPath.row == 0)
{
valTxtField.text = #"";
emailTxtFld = valTxtField; //emailTxtFld is global variable
}
if(indexPath.row == 1)
{
valTxtField.text = #"";
reEmailTxtFld = valTxtField; //reEmailTxtFld is global variable
}
}
else if(indexPath.section == 1){
NSDictionary *rowData = [self.regisLabel objectAtIndex:[indexPath row]+10];
NSString *mainLabel = [NSString stringWithFormat:#"%#", [rowData objectForKey:#"regisLbl"]];
cell.registerLabel.text = mainLabel;
cell.registerTextField.enabled = NO;
}
else if(indexPath.section == 2){
if(indexPath.row == 0){
NSDictionary *rowData = [self.regisLabel objectAtIndex:[indexPath row]+11];
NSString *mainLabel = [NSString stringWithFormat:#"%#", [rowData objectForKey:#"regisLbl"]];
cell.registerLabel.text = mainLabel;
cell.registerTextField.enabled = NO;
}
}
return cell;