objective-c – 用数组绑定NSRuleEditor行

概述在开发者文档中我发现了这个： NSRuleEditor exposes one binding, rows. You can bind rows to an ordered collection (such as an instance of NSMutableArray). Each object in the collection should have the following prope 在开发者文档中我发现了这个：

NSRuleEditor exposes one binding,rows. You can bind rows to an
ordered collection (such as an instance of NSMutableArray). Each
object in the collection should have the following propertIEs:

@”rowType” An integer representing the type of the row(NSRuleEditorRowType).

@”subrows” An ordered to-many relation (such as an instance of NSMutableArray) containing the directly nested subrows for the given
row.

@”displayValues” An ordered to-many relation containing the display values for the row.

@”criteria” An ordered to-many relation containing the criteria for the row.

任何人都可以举例说明如何做到这一点？

解决方法 ===========编辑=============

在我研究过的时候,NSRuleEditor类头包含有关绑定的下一个文档：

* -- Bindings support -- *//* Sets the class used when creating a new row in the "rows" binding; this class should be KVC and KVO compliant for the key paths Listed below.  By default this is NSMutableDictionary */- (voID)setRowClass:(Class)rowClass;- (Class)rowClass;/* Set and get the key path for the row type,which is used to get the row type in the "rows" binding.  The row type is a value property of type NSRuleEditorRowType.  The default is @"rowType". */- (voID)setRowTypeKeyPath:(Nsstring *)keyPath;- (Nsstring *)rowTypeKeyPath;/* Set and get the key path for the subrows,which is used to determined nested rows in the "rows" binding.  The subrows property is an ordered to-many relationship containing additional bound row objects. The default is @"subrows". */- (voID)setSubrowsKeyPath:(Nsstring *)keyPath;- (Nsstring *)subrowsKeyPath;/* Set and get the criteria key path,which determines the criteria for a row in the "rows" binding.  (The criteria objects are what the delegate returns from - ruleEditor: child: forCriterion: withRowType:).  The criteria property is an ordered to-many relationship. The default is @"criteria". */- (voID)setCriteriaKeyPath:(Nsstring *)keyPath;- (Nsstring *)criteriaKeyPath;/* Set and get the display values key path,which determines the display values for a row (the display values are what the delegate returns from - ruleEditor: displayValueForCriterion: inRow:).  The criteria property is an ordered to-many relationship. The default is @"displayValues". */- (voID)setdisplayValuesKeyPath:(Nsstring *)keyPath;- (Nsstring *)displayValuesKeyPath;

为了扩展答案,我将给出下一个示例,以便您了解如何将自己的类绑定为行：

@interface Bindobject : NSObject@property (nonatomic,assign) NSInteger rowType;@property (nonatomic,strong) NSMutableArray *subrows;@property (nonatomic,strong) NSMutableArray *displayValues;@property (nonatomic,strong) NSMutableArray *criteria;@end// binding custom class as row class[self.ruleEditor setRowClass:[Bindobject class]];

现在,当您向NSRuleEditor添加新行时,将使用您的类.您还可以更改KeyPath,因此可以调用@R_419_6942@行类中的字段(ivars / propertIEs),而不是文档中的特定字段.

希望这能帮助您了解NSRuleEditor的工作原理.

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我找到了this article,它应该可以帮助你理解NSRuleEditor的工作原理.

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