DataAdapter Select Command - Sql Server

SqlDataAdapter is a part of the ADO.NET Data Provider. SqlDataAdapter provides the communication between the Dataset and the Data Source with the help of SqlConnection Object .The SqlDataAdapter works with the DataSet to provide a disconnected data retrieval mechanism.

The SelectCommand property of the SqlDataAdapter is a Command object that retrieves data from the data source. The Fill method of the DataAdapter is used to populate a DataSet with the results of the SelectCommand . Fill method takes as its arguments a DataSet to be populated, and a DataTable object , or the name of the DataTable to be filled with the rows returned from the SelectCommand. The following C# program shows the SqlDataAdapter using its SelectCommand property to retrieve the data from the Data Source.

using System;
using System.Data;
using System.Data.SqlClient;
using System.Windows.Forms;

namespace WindowsApplication1
    public partial class Form1 : Form
        public Form1()

        private void button1_Click(object sender, EventArgs e)
            string connetionString = null;
            SqlConnection connection ;
            SqlDataAdapter adapter = new SqlDataAdapter();
            DataSet ds = new DataSet();
            int i = 0;
            connetionString = "Data Source=ServerName;Initial Catalog=DatabaseName;User ID=UserName;Password=Password";
            connection = new SqlConnection(connetionString);
                adapter.SelectCommand = new SqlCommand("Your SQL Statement Here", connection);
                for (i = 0; i <= ds.Tables[0].Rows.Count - 1; i++)
            catch (Exception ex)
} (C) 2021    Founded by raps mk
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