OOH MAN
just put "N" Define Unicode class system.string....like this below code
private void button1_Click_1(object sender, EventArgs e)
{
try
{
SqlConnection abc = new SqlConnection(Connection);
abc.Open();
SqlCommand cmd = new SqlCommand("insert into policrec values(N'" + polnam.Text + "',N'" + loct.Text + "',N'" + cort.Text + "',N'" + datc.Text + "')", abc);
cmd.ExecuteNonQuery();
MessageBox.Show("Data succefully enter");
Show();
}
catch (Exception ee)
{
MessageBox.Show(ee.GetBaseException().ToString());
}
}
but remember your databse fields datatype nvarchar
Enjoy ....