Question

我是Objective-C的新手。我正在使用NSArrayController来填充NSTableView。最初，我在表视图中选择了所有行。我无法找到背后的原因。

for(int i=0;i<nCount;i++)
{
    NSString *fileName_File = [[[filenames objectAtIndex:i] lastPathComponent] stringByDeletingPathExtension];

    NSString *pathExtension = [[filenames objectAtIndex:i] pathExtension];
    NSString *yourPath = [filenames objectAtIndex:i];
    NSFileManager *fmgr = [[NSFileManager alloc] init];
    NSDictionary *attrs = [fmgr attributesOfItemAtPath: yourPath error: nil];
    [attrs retain]; 
    UInt32 result = [attrs fileSize];
    /*NSString * zStr1 = [[NSString alloc]initWithFormat:@"%d",i+1];
    NSString * zStr2 = [[NSString alloc]initWithFormat:@"%@",fileName_File];
    NSString * zStr3 = [[NSString alloc]initWithFormat:@"%@",pathExtension];
    NSString * zStr4 = [[NSString alloc]initWithFormat:@"%d",result];
    NSString * zStr5 = [[NSString alloc]initWithFormat:@"%@",[filenames objectAtIndex:i]];*/
    CMyMediaData * MyMediaObj = [[CMyMediaData alloc]initWithString1:[[NSString alloc]initWithFormat:@"%@",@""]
                                                           andString2:[[NSString alloc]initWithFormat:@"%@",fileName_File] 
                                                           andString3:[[[NSString alloc]initWithFormat:@"%@",pathExtension]uppercaseString]
                                                           andString4:[[NSString alloc]initWithFormat:@"%d",result]
                                                           andString5:[[NSString alloc]initWithFormat:@"%@",[filenames objectAtIndex:i]]
                                  ];
    [attrs release];
    [mMedia.mcMediaController.mcTableViewMyMedia addObject:MyMediaObj];
    //[mMedia.nsMutaryOfDataObject addObject:MyMediaObj];
}   this is the code to add data to nsarraycontroller object.mcMediaController is object of NSArrayController

Answer 1

NSArrayController有一个属性selectsInsertedObjects。如果为YES，则选择插入的对象，包括addObject:添加的对象。

您可以将该属性设置为NO，或者您可以在添加项目后使用以下内容取消设置选择：

mMedia.mcMediaController.mcTableViewMyMedia.selectedObjects = @[];

如何防止在启动时选择NSTableView的所有行

1 个答案: