XmlNextChild
Description
This function returns the handle of the next child tag having the specified name. If szTag is empty, then the next child tag is returned whatever its name is.
Inputs
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Input |
Data type |
Description |
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hTag |
DINT |
Handle of the XML tag. |
|
hChildTag |
DINT |
Handle of the previous child tag. |
|
szTag |
STRING |
Name of the wished child tag. Empty string for enumerating all children. |
Outputs
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Output |
Data type |
Description |
|
hChildNext |
DINT |
Handle of the next child tag matching the specified name, or 0 if no child found. |
Typical use in ST:
hChild := XmlFirstChild (hParentTag, 'TagName');
while hChild <> 0 do
(* explore the tag *)
hChild := XmlNextChild (hParentTag, hChild, 'TagName');
end_while;
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Memory management / Miscellaneous XmlManager: Main gatherer of XML data in memory. XmlLastError: Get detailed error report about last call. XmlNewDoc: Create an empty XML document. XmlFreeDoc: Release a XML document from memory. XmlParseDocTxb: Parse a XML document from text buffer. XmlParseDocFile: Parse a XML document form file. XmlWriteDocTxb: Format XML data to text buffer. XmlWriteDocFile: Format XML data to file. XmlGetTagName: Get name of a XML tag. XmlCheckTagName: Test the name of a XML tag. XmlGetTagCont: Get tag contents as STRING. XmlGetTagContT: Get tag contents as text buffer. XmlGetTagAttrib: Get tag attribute. XmlFirstChild: Start enumerating child tags. XmlNextChild: Enumerate child tags XmlSetTagAttrib: Set tag attribute. XmlSetTagCont: Set tag contents with STRING. XmlSetTagContT: Set tag contents with text buffer. XmlAddChild: Add a child tag. Exchanging variables using their name XmlGetSybValue: Get variable value using its symbol. XmlSetSybValue: Set variable value using its symbol. |
XmlNextChild |
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IEC 61131-3 Automation platform > Programming - Reference guide > Advanced operations > XML writing and parsing > Exploring a XML document > XmlNextChild |
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