how to perform operations on values of passed by other forms

See more:

SQL-Server

Visual-Studio

(there are 2 forms..one form contains label and button and another form contain datagridview...i want that when i am clicking on button of 1st form it should redirect to 2nd form along with the label value and perform the operation on datagridview of 2nd form by the label value using sql command)
Form1

private void button1_Click(object sender, EventArgs e)
       {
           ministatement mns = new ministatement();
           mns.Show();
           mns.label2.Text = label2.Text;
           mns.label4.Text = label4.Text;
       }

Form2

public partial class ministatement : Form
   {
        SqlConnection connect = new SqlConnection(@"data source=ABHINAV-PC\ABHI;integrated security=true;initial catalog=ATM;");

       public ministatement()
       {
           InitializeComponent();
       }

       private void ministatement_Load(object sender, EventArgs e)
       {
            connect.Open();
SqlCommand cmd = new SqlCommand("select * from transactions where account_no='" + label4.Text.Trim().ToString() +"'" , connect);
DataTable dth = new DataTable();
                SqlDataAdapter da = new SqlDataAdapter(cmd);
                da.Fill(dth);
                dataGridView1.DataSource = dth;
}
}
}