DirTree Objective-C Reference Documentation

CkoDirTree

Current Version: 10.1.2

API for iterating over the files and sub-directories in a directory tree. The intent of this class is to provide a simplified, non-recursive way to iterate over an entire directory tree.

Object Creation

CkoDirTree *obj = [[CkoDirTree alloc] init];

Properties

BaseDir
@property (nonatomic, copy) NSString *BaseDir;

Begin iterating from this directory.

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DebugLogFilePath
@property (nonatomic, copy) NSString *DebugLogFilePath;

If set to a file path, this property logs the LastErrorText of each Chilkat method or property call to the specified file. This logging helps identify the context and history of Chilkat calls leading up to any crash or hang, aiding in debugging.

Enabling the VerboseLogging property provides more detailed information. This property is mainly used for debugging rare instances where a Chilkat method call causes a hang or crash, which should generally not happen.

Possible causes of hangs include:

  • A timeout property set to 0, indicating an infinite timeout.
  • A hang occurring within an event callback in the application code.
  • An internal bug in the Chilkat code causing the hang.

More Information and Examples
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DoneIterating
@property (nonatomic, readonly) BOOL DoneIterating;

Set to YES when the last file or sub-directory has been iterated.

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FileSize32
@property (nonatomic, readonly, copy) NSNumber *FileSize32;

The file size of the current file in the iteration. (0 if it is a directory.)

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FileSize64
@property (nonatomic, readonly, copy) NSNumber *FileSize64;

The file size as a 64-bit integer of the current file in the iteration. (0 if it is a directory.)

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FileSizeStr
@property (nonatomic, readonly, copy) NSString *FileSizeStr;
Introduced in version 9.5.0.88

The file size of the current file in the iteration as a decimal string. (0 if it is a directory.)

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FullPath
@property (nonatomic, readonly, copy) NSString *FullPath;

The absolute directory path of the current file or sub-directory.

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FullUncPath
@property (nonatomic, readonly, copy) NSString *FullUncPath;

The absolute UNC directory path of the current file or sub-directory.

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IsDirectory
@property (nonatomic, readonly) BOOL IsDirectory;

YES if the current position is a sub-directory, NO if it is a file.

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LastErrorHtml
@property (nonatomic, readonly, copy) NSString *LastErrorHtml;

Provides HTML-formatted information about the last called method or property. If a method call fails or behaves unexpectedly, check this property for details. Note that information is available regardless of the method call's success.

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LastErrorText
@property (nonatomic, readonly, copy) NSString *LastErrorText;

Provides plain text information about the last called method or property. If a method call fails or behaves unexpectedly, check this property for details. Note that information is available regardless of the method call's success.

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LastErrorXml
@property (nonatomic, readonly, copy) NSString *LastErrorXml;

Provides XML-formatted information about the last called method or property. If a method call fails or behaves unexpectedly, check this property for details. Note that information is available regardless of the method call's success.

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LastMethodSuccess
@property (nonatomic) BOOL LastMethodSuccess;

Indicates the success or failure of the most recent method call: YES means success, NO means failure. This property remains unchanged by property setters or getters. This method is present to address challenges in checking for null or Nothing returns in certain programming languages.

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Recurse
@property (nonatomic) BOOL Recurse;

If YES, the iteration will be recursive. If NO the iteration is non-recursive. The default value is YES.

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RelativePath
@property (nonatomic, readonly, copy) NSString *RelativePath;

The relative directory path of the current file or sub-directory. (Relative to the BaseDir)

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VerboseLogging
@property (nonatomic) BOOL VerboseLogging;

If set to YES, then the contents of LastErrorText (or LastErrorXml, or LastErrorHtml) may contain more verbose information. The default value is NO. Verbose logging should only be used for debugging. The potentially large quantity of logged information may adversely affect peformance.

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Version
@property (nonatomic, readonly, copy) NSString *Version;

Version of the component/library, such as "10.1.0"

More Information and Examples
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Methods

AdvancePosition
- (BOOL)AdvancePosition;

Advances the current position in the directory tree traversal to the next file or sub-directory.

Important: If AdvancePosition returns NO, it can be an error, or it could be that there are no more files and directories. To distinguish between the two cases, examine the DoneIterating property. If DoneIterating is YES, then the NO return value is not an error, but instead indicates that the end has been reached.

Returns YES for success, NO for failure.

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BeginIterate
- (BOOL)BeginIterate;

Begins a directory tree traversal. After calling this method, the various property values such as Fullpath, FileSize32, etc. can be retrieved for the 1st file / sub-directory in the traversal.

Important: If BeginIterate returns NO, it can be an error, or it could be that there are 0 files and directories. To distinguish between the two cases, examine the DoneIterating property. If DoneIterating is YES, then the NO return value is not an error, but instead indicates 0 files/directories.

Returns YES for success, NO for failure.

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