First place the DataGridView Control in the form.In the coding add the namespasce
using System.Data.SqlClient;
then initialize SqlConnection to ConnString as public (i.e)next to public Form1( ) {InitializeComponent( );}
SqlConnection con = new SqlConnection(“Your Connection String”);
DataSet ds;
Inside any event such as Form_load or button1_click add the code
SqlDataAdapter da=new SqlDataAdapter(“select * from table1″,con);
ds=new DataSet();
da.Fill(ds,”table1″);
dataGridView1.DataSource=ds;
dataGridView1.DataMember=”table1″;
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