我使用SudzC作为iPhone应用程序。我成功地调用了我的ASP.Net webservice并将所需的数据拉入名为tableData的NSMutable数组中。我有一个tableView应该显示tableData的内容;但这不起作用。我在这个问题上找了好几个小时。我对Objective C世界非常陌生,所以我认为这对我来说是一个小小的疏忽。我也将我的TableView链接到ViewController(委托/数据源)。
这是我的代码:
#import "ViewController.h"
#import "DocumentServiceJSONService.h"
@interface ViewController ()
@end
@implementation ViewController
NSMutableArray *tableData;
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
}
-(void)viewWillAppear:(BOOL) animated {
tableData = [[NSMutableArray alloc] init];
DocumentServiceJSONService* service = [[DocumentServiceJSONService alloc] init];
[service GetAllEMSDocumentsXMLAsString: self action:@selector(handleGetAllEMSDocuments:)];
[super viewWillAppear:animated];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
-(void) handleGetAllEMSDocuments:(id) result {
if ([result isKindOfClass:[NSError class]]) {
//if an error has occurred, handle it
return;
}
if([result isKindOfClass: [SoapFault class]]) {
return;
}
NSString* xmlString = result;
CXMLDocument *xmlDoc = [[CXMLDocument alloc] initWithXMLString:xmlString options:0 error:nil];
NSArray *nodes = NULL;
nodes = [xmlDoc nodesForXPath:@"//EMSDocuments" error:nil];
for (CXMLElement *node in nodes) {
NSMutableDictionary *item = [[NSMutableDictionary alloc] init];
int counter;
for (counter = 0; counter < [node childCount]; counter++) {
[item setObject:[[node childAtIndex:counter] stringValue] forKey:[[node childAtIndex:counter] name]];
}
//[item setObject:[[node attributeForName:@"DisplayName"] stringValue] forKey:@"DisplayName"];
NSString *displayName = [item objectForKey:@"DisplayName"];
[tableData addObject:displayName];
}
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [tableData count];
}
-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return 1;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *simpleTableIdentifier = @"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];
if (cell == nil)
{
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:simpleTableIdentifier];
}
cell.textLabel.text = [tableData objectAtIndex:indexPath.row];
return cell;
}
@end
感谢任何建议。
答案 0 :(得分:1)
确保在.h中正确设置了委托和数据源:
@interface YourViewController : UIViewController <UITableViewDataSource, UITableViewDelegate>
如果您将XIB用于用户界面,则tableview将作为数据源和委托连接到文件所有者。
- 编辑: 为您创建一个Outlet tableview: