C ++ builder uses XMLDocument to add, delete, modify, and read XML!

// Header file

# Include <XMLDoc. hpp>

# Include <xmldom. hpp>

# Include <XMLIntf. hpp>

 

// Operation

// Define variables

AnsiString GameTDJpath; // It can only be of the AnsiString type

AnsiString gamepath = "gamepath"; // only the AnsiString type is allowed

_ Di_IXMLDocument XmlNetbargpp = NewXMLDocument (); // create a new object

XmlNetbargpp-> Active = true; // activate

 

// Read

XmlNetbargpp-> LoadFromFile (ExtractFilePath (Application-> ExeName) + "netbar. xml"); // load xml (the dynamic path is obtained by combining the exe path and XML name)

XmlNetbargpp-> Active = false; // manually disable and enable it for multiple times

XmlNetbargpp-> Active = true; // manually disable and enable it for multiple times

GameTDJpathtext = XmlNetbargpp-> DocumentElement-> ChildNodes-> FindNode (gamepath)-> GetAttribute ("path"); // you can find the value of the path attribute of the node gametdj.

 

// Insert

_ Di_IXMLNode root = XmlNetbargpp-> DocumentElement; // obtain the ROOT node root.

Root = root-> AddChild ("game"); // Add a node

Root-> Attributes ["path"] = ""; // Add the attribute path value as null.

XmlNetbargpp-> SaveToFile ("netbar. xml"); // update XML only after saving

 

// Update

_ Di_IXMLNode nodeupdate = XmlNetbargpp-> DocumentElement-> ChildNodes-> FindNode (gamepath); // search for the gamepath Node

Nodeupdate-> AttributeNodes-> operator [] (0)-> NodeValue = (WideString) ("path value "); // set the path value of the first attribute under the node found by node.

XmlNetbargpp-> SaveToFile ("netbar. xml"); // update xml only after saving

 

// Delete

_ Di_IXMLNode node2 = XmlNetbargpp-> DocumentElement; // you can search for it and then delete it.

Node2-> ChildNodes-> Delete (WideString ("gamepath"); // Delete a node

GamepathXmlNetbargpp-> SaveToFile ("netbar. xml"); // The XML is updated only after being saved.

 

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