private void button1_Click(object sender, EventArgs e)
        {
            try
            {
                if (Validation())
                {
                    if (IfIdExists(textBox2.Text, textBox1.Text))
                    {
                        MessageBox.Show("Already selected Id or Name...!!!...Take a new Id...!!!", "Polkotuwa Stores");
                    }
                    else
                    {
                        DialogResult dr = MessageBox.Show("Are you sure want to Add", "Polkotuwa Stores", MessageBoxButtons.YesNo);

                        if (dr == DialogResult.Yes)
                        {
                            con2.dataSend2("insert into [dbo].[Stock] (Item_Id,Item_Name,Item_Price,Item_Quantity) values('" + textBox1.Text.ToString() + "','" + textBox2.Text + "','" + textBox3.Text.ToString() + "','" + textBox4.Text.ToString() + "')");
                            MessageBox.Show("Record Added Successfully....!!!", "Polkotuwa Stores", MessageBoxButtons.OK, MessageBoxIcon.Information);
                            ClearData();
                        }
                    }
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }
        private void btnUpdate_Click(object sender, EventArgs e)
        {
            try
            {
                DialogResult dr = MessageBox.Show("Are you sure want to Update", "Polkotuwa Stores", MessageBoxButtons.YesNo);
                if (dr == DialogResult.Yes)
                {
                    con2.dataSend2("UPDATE [dbo].[Employee_Register] SET SupID ='" + txtID.Text + "', SupName ='" + txtName.Text + "', SupNum ='" + txtConNum.Text + "', SupAdd ='" + txtAdd.Text + "' where SupIDId='" + txtID.Text + "'");


                    MessageBox.Show("Record Updated Successfully....!!!", "Polkotuwa Stores", MessageBoxButtons.OK, MessageBoxIcon.Information);
                    ClearData();
                }
                disp_data();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }
 private void button3_Click(object sender, EventArgs e)
 {
     try
     {
         con2.dataSend2("insert into [dbo].[Billing_Details] (Customer_Name,Date,Sub_Total,Discount,Net_Total,Paid,Balance) values ('" + textBox11.Text.ToString() + "','" + dateTimePicker1.Value.ToString("dd-MM-yyyy") + "','" + textBox4.Text.ToString() + "','" + textBox5.Text.ToString() + "','" + textBox6.Text.ToString() + "','" + textBox7.Text.ToString() + "','" + textBox9.Text.ToString() + "')");
         MessageBox.Show("Record Saved Successfully....!!!", "Polkotuwa Stores", MessageBoxButtons.OK, MessageBoxIcon.Information);
     }
     catch (Exception ex)
     {
         MessageBox.Show(ex.Message);
     }
 }
        private void btnAdd_Click(object sender, EventArgs e)
        {
            try
            {
                if (Validation())
                {
                    DialogResult dr = MessageBox.Show("Are you sure want to Save Record", "Polkotuwa Stores", MessageBoxButtons.YesNo);

                    if (dr == DialogResult.Yes)
                    {
                        Connection2 con2 = new Connection2();
                        con2.dataSend2("insert into [dbo].[SupDetails] (SupID,SupName,SupNum,SupAdd) values('" + txtID.Text.ToString() + "', '" + txtName.Text.ToString() + "', '" + txtConNum.Text.ToString() + "', '" + txtAdd.Text.ToString() + "')");
                        MessageBox.Show("Record Saved Successfully....!!!", "Polkotuwa Stores", MessageBoxButtons.OK, MessageBoxIcon.Information);
                        ClearData();
                    }

                    disp_data();
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }