How to use a Hashtable in C#.

Creating a Hashtable

The following code creates a Hashtable:

private Hashtable hsTable = new Hashtable();

Adding Items to a Hashtable
Add method of Hashtable is used to add items to the hashtable. The
method has index and value parameters.

The following code adds items to hashtable.

hsTable .Add("Game1",  "Cricket");
hsTable.Add("Game2",  "Football");
hsTable.Add("Game3",  "Badminton");
hsTable.Add("Game3",  "Basketball");
hsTable.Add("Game3",  "Tennis");

Retrieving an Item Value from Hashtable

The following code returns the value of "Cricket" key:

string name = hsTable ["Cricket "].ToString();

Removing Items from a Hashtable

The Remove method removes an item from a Hashtable.

The following code removes item with index "Cricket" from the hashtable:


Looking through all Items of a Hashtable

The following code loops through all items of a hashtable and reads the values.

IDictionaryEnumerator en = hsTable.GetEnumerator(); while (en.MoveNext())
      string str = en.Value.ToString();


  Modified On Sep-18-2014 01:24:02 PM

Leave Comment