Typed and UnTyped Dataset

Untyped dataSet you can created in following manner by creating object of DataSet Class.

Dataset has one table with column name firstName.

DataSet ds = new DataSet();

DataTable dt = new DataTable();

DataColumn one = new DataColumn("FirstName");

dt.Columns.Add(one);

ds.Tables.Add(dt);


You can add typed dataset by following manner,

On Solution Explorer, RightClick -> Add New Item then select DataSet.xsd after that from server explorer you can drag the object or you can manuall also create table. and give "Select Command, InsertCommand , UpdateCommand and DeleteCommand", when you call the method, DataSet.AcceptChanges(); , respective command will be executed based on the Rowstate.