C # xml usage Summary

XML files are easy to read and write, so they are very suitable for saving some program configuration information.

The method for reading and writing XML files in C # is summarized below and updated at any time.

1. Obtain the value of a node.

Code Xdocument xdoc = xdocument. Load (@ "dataconfig. xml ");
This. tb_mmzs.text = xdoc. element ("cost"). element ("bookinfo"). element ("pagewordcount"). value;

2. query XML documents.

Code VaR query = from bookformat in xdoc. element ("cost"). element ("bookinfo"). element ("bookformat"). descendants ("bookformatitem ")
Select bookformat;
Foreach (VAR item in query)
{
This. ddl_kb.items.add (New listitem (item. element ("text"). Value, item. element ("value"). Value ));
}