Write this code in Program.cs as "Public class program" under namespace 'project name' by Constructors
public class Program
{
public OleDbConnection Cn;
public OleDbCommand cmd;
public OleDbDataAdapter DAdap;
public OleDbDataReader rs;
public Program()
{
Cn = new OleDbConnection(@"Provider=Microsoft.Jet.OLEDB.4.0; Data Source=" + Application.StartupPath + "/Data.mdb");
Cn.Open();
cmd = new OleDbCommand();
DAdap = new OleDbDataAdapter();
}
Here program is a contructor. You can call anywhere in project by create program class.
Thank You! :)
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