JsonArray ActiveX Reference Documentation
JsonArray
Current Version: 10.1.2
Represents a JSON array, which contains an ordered list of JSON values, where each value can be a string, number, JSON object, JSON array, true, false, or null.
Object Creation
Note: For versions of Chilkat < 10.0.0, use "Chilkat_9_5_0.JsonArray" instead of "Chilkat.JsonArray" For a specific major version, use "Chilkat.JsonArray.<major_version>", such as "Chilkat.JsonArray.10" for Chilkat v10.*.* See Chilkat ActiveX Object Creation (ASP) set obj = Server.CreateObject("Chilkat.JsonArray") (AutoIt) $obj = ObjCreate("Chilkat.JsonArray") (Visual Basic 6.0) Dim obj As New ChilkatJsonArray (VBScript) set obj = CreateObject("Chilkat.JsonArray") (Delphi) obj := TChilkatJsonArray.Create(Self); (FoxPro) loObject = CreateObject('Chilkat.JsonArray') (PowerBuilder) lole_object = create oleobject li_rc = lole_object.ConnectToNewObject("Chilkat.JsonArray") (SQL Server) EXEC @hr = sp_OACreate 'Chilkat.JsonArray', @obj OUT (Javascript) var obj = new ActiveXObject("Chilkat.JsonArray");
Properties
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.
EmitCompact
If 1 then the Emit method outputs in the most compact form possible (a single-line with no extra whitespace). If 0, then emits with whitespace and indentation to make the JSON human-readable.
The default value is 1.
topEmitCrlf
If 1 then the Emit method uses CRLF line-endings when emitting the non-compact (pretty-print) format. If 0, then bare-LF's are emitted. (The compact format emits to a single line with no end-of-line characters.) Windows systems traditionally use CRLF line-endings, whereas Linux, Mac OS X, and other systems traditionally use bare-LF line-endings.
The default value is 1.
topLastBinaryResult
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 1. 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
Indicates the success or failure of the most recent method call: 1 means success, 0 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.
topSize
The number of JSON values in the array.
topVerboseLogging
If set to 1, then the contents of LastErrorText (or LastErrorXml, or LastErrorHtml) may contain more verbose information. The default value is 0. Verbose logging should only be used for debugging. The potentially large quantity of logged information may adversely affect peformance.
topVersion
Version of the component/library, such as "10.1.0"
Methods
AddArrayAt
Inserts a new and empty JSON array member to the position indicated by index. To prepend, pass an index of 0. To append, pass an index of -1. Indexing is 0-based (the 1st member is at index 0).
Returns 1 for success, 0 for failure.
AddBoolAt
Inserts a new boolean member to the position indicated by index. To prepend, pass an index of 0. To append, pass an index of -1. Indexing is 0-based (the 1st member is at index 0).
Returns 1 for success, 0 for failure.
AddIntAt
Inserts a new integer member to the position indicated by index. To prepend, pass an index of 0. To append, pass an index of -1. Indexing is 0-based (the 1st member is at index 0).
Returns 1 for success, 0 for failure.
AddNullAt
Inserts a new null member to the position indicated by index. To prepend, pass an index of 0. To append, pass an index of -1. Indexing is 0-based (the 1st member is at index 0).
Returns 1 for success, 0 for failure.
AddNumberAt
Inserts a new numeric member to the position indicated by index. The numericStr is an integer, float, or double already converted to a string in the format desired by the application. To prepend, pass an index of 0. To append, pass an index of -1. Indexing is 0-based (the 1st member is at index 0).
Returns 1 for success, 0 for failure.
AddObjectAt
Inserts a new and empty JSON object member to the position indicated by index. To prepend, pass an index of 0. To append, pass an index of -1. Indexing is 0-based (the 1st member is at index 0).
Returns 1 for success, 0 for failure.
AddObjectCopyAt
Inserts a copy of a JSON object to the position indicated by index. To prepend, pass an index of 0. To append, pass an index of -1. Indexing is 0-based (the 1st member is at index 0).
Returns 1 for success, 0 for failure.
AddStringAt
Inserts a new string at the position indicated by index. To prepend, pass an index of 0. To append, pass an index of -1. Indexing is 0-based (the 1st member is at index 0).
Returns 1 for success, 0 for failure.
AddUIntAt
Inserts a new unsigned integer member to the position indicated by index. To prepend, pass an index of 0. To append, pass an index of -1. Indexing is 0-based (the 1st member is at index 0).
Returns 1 for success, 0 for failure.
topAppendArrayItems
Appends the array items contained in jarr.
Returns 1 for success, 0 for failure.
ArrayAt
Returns the JSON array that is the value of the Nth array element. Indexing is 0-based (the 1st member is at index 0).
Returns Nothing on failure
BoolAt
Returns the boolean value of the Nth array element. Indexing is 0-based (the 1st member is at index 0).
topClear
Deletes all array elements.
topDateAt
Fills the dateTime with the date/time string located in the Nth array element. Indexing is 0-based (the 1st member is at index 0). Auto-recognizes the following date/time string formats: ISO-8061 Timestamp (such as "2009-11-04T19:55:41Z"), RFC822 date/time format (such as "Wed, 18 Apr 2018 15:51:55 -0400"), or Unix timestamp integers.
Returns 1 for success, 0 for failure.
topDeleteAt
Deletes the array element at the given index. Indexing is 0-based (the 1st member is at index 0).
Returns 1 for success, 0 for failure.
DtAt
Fills the dt with the date/time string located in the Nth array element. If bLocal is 1, then dt is filled with the local date/time values, otherwise it is filled with the UTC/GMT values. Indexing is 0-based (the 1st member is at index 0). Auto-recognizes the following date/time string formats: ISO-8061 Timestamp (such as "2009-11-04T19:55:41Z"), RFC822 date/time format (such as "Wed, 18 Apr 2018 15:51:55 -0400"), or Unix timestamp integers.
Returns 1 for success, 0 for failure.
topEmit
Writes the JSON array (rooted at the caller) and returns as a string.
Note: To control the compact/non-compact format, and to control the LF/CRLF line-endings, set the EmitCompact and EmitCrlf properties.
Returns Nothing on failure
topEmitSb
Writes the JSON array to the sb.
Note: To control the compact/non-compact format, and to control the LF/CRLF line-endings, set the EmitCompact and EmitCrlf properties.
Returns 1 for success, 0 for failure.
FindObject
Return the index of the first object in the array where value of the field at name matches value. name is an object member name. The value is a value pattern which can use "*" chars to indicate zero or more of any char. If caseSensitive is 0, then the matching is case insenstive, otherwise it is case sensitive. Returns -1 if no matching string was found.
FindString
Return the index of the first matching string in the array. The value is a value pattern which can use "*" chars to indicate zero or more of any char. If caseSensitive is 0, then the matching is case insenstive, otherwise it is case sensitive. Returns -1 if no matching string was found.
topIntAt
Returns the integer value of the Nth array element. Indexing is 0-based (the 1st member is at index 0).
IsNullAt
Returns the 1 if the Nth array element is null, otherwise returns 0. Indexing is 0-based (the 1st member is at index 0).
Load
Loads a JSON array from a string. A JSON array must begin with a "[" and end with a "]".
Note: The Load method causes the JsonArray to detach and become it's own JSON document. It should only be called on new instances of the JsonArray. See the example below.
Returns 1 for success, 0 for failure.
LoadSb
Loads a JSON array from a StringBuilder. A JSON array must begin with a "[" and end with a "]".
Note: The Load method causes the JsonArray to detach and become it's own JSON document. It should only be called on new instances of the JsonArray. See the example below.
Returns 1 for success, 0 for failure.
ObjectAt
Returns the JSON object that is the value of the Nth array element. Indexing is 0-based (the 1st member is at index 0).
Returns Nothing on failure
SetBoolAt
Sets the boolean value of the Nth array element. Indexing is 0-based (the 1st member is at index 0).
Returns 1 for success, 0 for failure.
SetIntAt
Sets the integer value of the Nth array element. Indexing is 0-based (the 1st member is at index 0).
Returns 1 for success, 0 for failure.
SetNullAt
Sets the Nth array element to the value of null. Indexing is 0-based (the 1st member is at index 0).
Returns 1 for success, 0 for failure.
topSetNumberAt
Sets the numeric value of the Nth array element. The value is an integer, float, or double already converted to a string in the format desired by the application. Indexing is 0-based (the 1st member is at index 0).
Returns 1 for success, 0 for failure.
SetStringAt
Sets the string value of the Nth array element. Indexing is 0-based (the 1st member is at index 0).
Returns 1 for success, 0 for failure.
SetUIntAt
Sets the unsigned integer value of the Nth array element. Indexing is 0-based (the 1st member is at index 0).
Returns 1 for success, 0 for failure.
topStringAt
Returns the string value of the Nth array element. Indexing is 0-based (the 1st member is at index 0).
Returns Nothing on failure
Swap
TypeAt
Returns the type of data at the given index. Possible return values are:
- string
- number
- object
- array
- boolean
- null
UIntAt
Returns the unsigned integer value of the Nth array element. Indexing is 0-based (the 1st member is at index 0).
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