StringTable DataFlex Reference Documentation
StringTable
Current Version: 10.1.2
A memory efficient class for holding a large number of strings (accessible by index). The primary use is as a read-only table of strings that is built once and then used by the application.
This class is introduced in Chilkat v9.5.0.62.
Object Creation
// (Dataflex programs use the 32-bit Chilkat ActiveX) Handle hoStringTable
Get Create(RefClass(cComChilkatStringTable)) to hoStringTable
Properties
Count
The number of strings in the table.
topDebugLogFilePath
Procedure Set ComDebugLogFilePath String value
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.
LastBinaryResult
This property is mainly used in SQL Server stored procedures to retrieve binary data from the last method call that returned binary data. It is only accessible if Chilkat.Global.KeepBinaryResult is set to True. This feature allows for the retrieval of large varbinary results in an SQL Server environment, which has restrictions on returning large data via method calls, though temp tables can handle binary properties.
topLastErrorHtml
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.
topLastErrorText
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.
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.
topLastMethodSuccess
Procedure Set ComLastMethodSuccess Boolean value
Indicates the success or failure of the most recent method call: True means success, False 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.
topLastStringResult
In SQL Server stored procedures, this property holds the string return value of the most recent method call that returns a string. It is accessible only when Chilkat.Global.KeepStringResult is set to TRUE. SQL Server has limitations on string lengths returned from methods and properties, but temp tables can be used to access large strings.
LastStringResultLen
The length, in characters, of the string contained in the LastStringResult property.
topVerboseLogging
Procedure Set ComVerboseLogging Boolean value
If set to True, then the contents of LastErrorText (or LastErrorXml, or LastErrorHtml) may contain more verbose information. The default value is False. Verbose logging should only be used for debugging. The potentially large quantity of logged information may adversely affect peformance.
topVersion
Methods
Append
AppendFromFile
Appends strings, one per line, from a file. Each line in the path should be no longer than the length specified in maxLineLen. The charset indicates the character encoding of the contents of the file, such as "utf-8", "iso-8859-1", "Shift_JIS", etc.
Returns True for success, False for failure.
topAppendFromSb
Appends strings, one per line, from the contents of a StringBuilder object.
Returns True for success, False for failure.
Clear
Removes all the strings from the table.
topFindSubstring
Return the index of the first string in the table containing substr. Begins searching strings starting at startIndex. If caseSensitive is True, then the search is case sensitive. If caseSensitive is False then the search is case insensitive. Returns -1 if the substr is not found.
topGetStrings
Return the number of strings specified by count, one per line, starting at startIdx. To return the entire table, pass 0 values for both startIdx and count. Set crlf equal to True to emit with CRLF line endings, or False to emit LF-only line endings. The last string is emitted includes the line ending.
Returns null on failure
topIntAt
Returns the Nth string in the table, converted to an integer value. The index is 0-based. (The first string is at index 0.) Returns -1 if no string is found at the specified index. Returns 0 if the string at the specified index exist, but is not an integer.
topSaveToFile
Saves the string table to a file. The charset is the character encoding to use, such as "utf-8", "iso-8859-1", "windows-1252", "Shift_JIS", "gb2312", etc. If bCrlf is True, then CRLF line endings are used, otherwise LF-only line endings are used.
Returns True for success, False for failure.
topSort
Sorts the strings in the collection in ascending or descending order. To sort in ascending order, set ascending to True, otherwise set ascending equal to False.
Returns True for success, False for failure.
topSplitAndAppend
Splits a string into parts based on a single character delimiterChar. If exceptDoubleQuoted is True, then the delimiter char found between double quotes is not treated as a delimiter. If exceptEscaped is True, then an escaped (with a backslash) delimiter char is not treated as a delimiter.
Returns True for success, False for failure.
StringAt
Returns the Nth string in the table. The index is 0-based. (The first string is at index 0.)
Returns null on failure
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