Certainly! In the context of ADO.NET technology, a DataSet is an in-memory cache of data retrieved from a data source, such as a database. It represents a disconnected, tabular data structure that can store multiple DataTable objects, each of which holds rows and columns of data. This enables the DataSet to hold a collection of one or more DataTables, along with the relationships between them. Here's a basic code snippet to demonstrate the creation of a simple DataSet in C#: using System; using System.Data; class Program { static void Main() { // Creating a new DataSet DataSet dataSet = new DataSet("MyDataSet"); // Creating a new DataTable DataTable table = new DataTable("MyTable"); // Adding columns to the DataTable table.Columns.Add("ID", typeof(int)); table.Columns.Add("Name", typeof(string)); table.Columns.Add("Age", typeof(int)); // Adding the DataTable to the DataSet dataSet.Tables.Add(table); // Adding rows to the DataTable table.Rows.Add(1, "John Doe", 30); table.Rows.Add(2, "Jane Smith", 28); // Displaying some data from the DataTable foreach (DataRow row in table.Rows) { Console.WriteLine($"ID: {row["ID"]}, Name: {row["Name"]}, Age: {row["Age"]}"); } } } In this example, we create a new DataSet named "MyDataSet" and add a DataTable named "MyTable" to it. Columns are added to the DataTable, and rows are subsequently inserted. This showcases a simple usage of a DataSet in a C# application. Is there anything specific you'd like to delve deeper into regarding DataSet within the scope of ADO.NET?