Filling a DataTable from the DataRow array using CopyToDataTable(DataTable, LoadOption) : DataRow « ADO.Net « C# / CSharp Tutorial

1. C# / CSharp Tutorial
2. ADO.Net
3. DataRow

using System;
using System.Data;
using System.Data.SqlClient;

    class Program
    {
        static void Main(string[] args)
        {
            string sqlConnectString = "Data Source=(local);Integrated security=SSPI;Initial Catalog=AdventureWorks;";

            string sqlSelect = "SELECT ContactID, FirstName, LastName FROM Person.Contact";

            SqlDataAdapter da = new SqlDataAdapter(sqlSelect, sqlConnectString);
            
            DataTable dt1 = new DataTable();
            da.Fill(dt1);

            DataRow[] dra = new DataRow[dt1.Rows.Count];
            dt1.Rows.CopyTo(dra, 0);
            for (int i = 0; i < dra.Length; i++){
                Console.WriteLine(
                    "ContactID = {0}\tFirstName = {1}\tLastName = {2}",
                    dra[i].Field<int>("ContactID"), dra[i].Field<string>("FirstName"),
                    dra[i].Field<string>("LastName"));
            }
            DataTable dt2 = dra.CopyToDataTable();
            foreach (DataRow row in dt2.Rows)
            {
                Console.WriteLine(
                    "ContactID = {0}\tFirstName = {1}\tLastName = {2}",
                    row["ContactID"], row["FirstName"], row["LastName"]);
            }

            DataTable dt3 = dt1.Clone();
            dra.CopyToDataTable(dt3, LoadOption.Upsert);
            foreach (DataRow row in dt3.Rows)
            {
                Console.WriteLine("ContactID = {0}\tFirstName = {1}\tLastName = {2}",row["ContactID"], row["FirstName"], row["LastName"]);
            }            
        }
    }

32.33.DataRow
	32.33.1.	DataRow Update
	32.33.2.	Accessing Data Values in a DataRow Array by column name
	32.33.3.	Accessing Data Values in a DataRow Array by column name and return default value
	32.33.4.	Accessing Data Values in a DataRow Array by index
	32.33.5.	Accessing Data Values in a DataRow Array in a generic way by index
	32.33.6.	Accessing Data Values in a DataRow Array in a generic way by name
	32.33.7.	DataView and DataRowView
	32.33.8.	Filling a DataTable from the DataRow array using CopyToDataTable()
	32.33.9.	Filling a DataTable from the DataRow array using CopyToDataTable(DataTable, LoadOption)
	32.33.10.	Using foreach statement with DataRow in DataTable
	32.33.11.	For loop over DataRow array
	32.33.12.	Get first index in a row
	32.33.13.	DataRowState manipulation
	32.33.14.	Create and fill the DataRow array
	32.33.15.	Get column value in a row
	32.33.16.	Get value from a row with default value