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[英]Filter Array of custom objects using NSPredicate in Objective C
[英]Filter Array of Custom Data Class With NSPredicate in Objective-C
我有一个名为DataClass
的自定义数据类,这里有详细信息。
@interface DataClass : NSObject
@property (assign,nonatomic)NSInteger invoiceID;
@property (assign,nonatomic)NSInteger anInvoiceID;
@property (strong,nonatomic)NSString *customerName;
@property (strong,nonatomic)NSString *departmentName;
@property (strong,nonatomic)NSString *typeNumberOfInvoice;
@property (strong,nonatomic)NSString *invoiceDate;
@property (strong,nonatomic)NSString *stockNumber;
@property (strong,nonatomic)NSString *vehicleDetail;
@property (strong,nonatomic)NSString *rONumber;
@property (assign,nonatomic)NSInteger amount;
@property (strong,nonatomic)NSString *color;
@property (strong,nonatomic)NSString *year;
@property (strong,nonatomic)NSString *location;
@property (strong,nonatomic)NSString *carVinNumber;
@property (strong,nonatomic)NSString *dealership;
@property (strong,nonatomic)NSString *technician;
@property (strong,nonatomic)NSData *imageData;
@property (strong, nonatomic)NSMutableArray *arrayOfLocations;
在我的ViewController
类中,我有一个文本字段,在其中输入内容并根据文本显示显示内容。 我有一个名为arrayOfData和filteredDataArray的NSMutableArray
。 arrayOfData包含上述DataClass
对象,但是当我尝试使用此代码执行此操作时,我得到了错误
“ ALL或ANY运算符的左侧必须是NSArray或NSSet。”
NSPredicate *aToZPredicate =
[NSPredicate predicateWithFormat:@"ANY invoiceID CONTAINS[cd] %@", searchText];
filteredDataArray = [arrayOfData filteredArrayUsingPredicate:aToZPredicate];
[_tableView reloadData];
如果要与Integer进行比较,请不要使用contains。 等号比较
NSPredicate *aToZPredicate =
[NSPredicate predicateWithFormat:@"invoiceID == %d", [searchText intValue]];
filteredDataArray = [arrayOfData filteredArrayUsingPredicate:aToZPredicate];
[_tableView reloadData];
尝试这个
NSPredicate *aToZPredicate =
[NSPredicate predicateWithFormat:@"CAST(SELF.invoiceID, 'NSString') contains[cd] %@", searchText];
filteredDataArray = [arrayOfData filteredArrayUsingPredicate:aToZPredicate];
[_tableView reloadData];
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