C#

Serialize / Deserialize Hashtable to/from XML

Demonstrates how to seralize / deserialize a Hashtable to/from XML.

Note: This example requires Chilkat v9.5.0.64 or later.

C#

// Note: This example requires Chilkat v9.5.0.64 or later.

// Add some entries to a hashtable.
Chilkat.Hashtable hashTab = new Chilkat.Hashtable();

hashTab.AddStr("aaa","111");
hashTab.AddStr("bbb","222");
hashTab.AddStr("ccc","333");

// Serialize to XML
Chilkat.StringBuilder sb = new Chilkat.StringBuilder();
hashTab.ToXmlSb(sb);
Debug.WriteLine(sb.GetAsString());
Debug.WriteLine("---");

// The output is as follows.  Each hash table entry
// is contained in an "e" node.  The entry's key
// is in the "k" node, and the value in the "v" node.

// <?xml version="1.0" encoding="utf8-8"?>
// <hashtable>
// <e><k>aaa</k><v>111</v></e>
// <e><k>bbb</k><v>222</v></e>
// <e><k>ccc</k><v>333</v></e>
// </hashtable>
// 

// Now load (deserialize) into a new hash table.
Chilkat.Hashtable hashTab2 = new Chilkat.Hashtable();
hashTab2.AddFromXmlSb(sb);

// Get the hash table keys, and lookup each (to show 
// that the hash table was correctly deserialized).
// The GetKeys method can return the keys in any order.
Chilkat.StringTable sTable = new Chilkat.StringTable();
hashTab2.GetKeys(sTable);

int i = 0;
int numKeys = sTable.Count;
while (i < numKeys) {
    string key = sTable.StringAt(i);
    Debug.WriteLine(key + ": " + hashTab2.LookupStr(key));
    i = i + 1;
}