not getting entire xml data into tableview - iphone

Question

im parsing xml data into table view,here iam retrieving question and answer tags,problem occured in question tag only one question was displayed remaining questions not displayed ,this is the web service http://www.cmellc.com/DesktopModules/CaseChallenge/quiz.xml
this is the code i wrote
- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict
{
currentTag = elementName;
if ([currentTag isEqualToString:#"question"])
{
model = [[ModelDataView alloc]init];
}
if([currentTag isEqualToString:#"answer"])
{
model_2=[[Model2 alloc]init];
}
}
- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName
{
if([elementName isEqualToString:#"question"])
{
[dataControllerArray addObject:model];
}
if ([elementName isEqualToString:#"answer"])
{
[dataControllerArray2 addObject:model_2];
model_2 = nil;
}
currentTag = nil;
}
- (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string
{
if ([currentTag isEqualToString:#"result"])
{
model_2.result = string;
}
if ([currentTag isEqualToString:#"notes"])
{
model_2.notes = string;
}
if ([currentTag isEqualToString:#"question"])
{
model.question = string;
}
}
this is code for tableview methods
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *cellIdentifier = #"cell";
static NSString *cellIdentifier2 = #"cell2";
UITableViewCell *cell;
if(tableView.tag==2)
{
cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier];
if (cell == nil)
{
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifier] autorelease];
}
Model2 *obj=[modelController.dataControllerArray2 objectAtIndex:indexPath.row];
NSString *res=obj.result;
cell.textLabel.text=res;
return cell;
}
else if(tableView.tag==1)
{
cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier2];
if (cell == nil)
{
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifier2] autorelease];
}
ModelDataView *obj=[modelController.dataControllerArray objectAtIndex:indexPath.row];
NSString *res=obj.question;
UIWebView *_webView = [[UIWebView alloc] initWithFrame:CGRectMake(0, 0, 320, 190)];
[self.view addSubview:_webView];
CGRect frame = _webView.frame;
frame.size.height = 190;
_webView.frame = frame;
[_webView loadHTMLString:res baseURL:[NSURL URLWithString:res]];
return cell;
}
}
thank you for helping me