private void button3_Click(object sender, EventArgs e)
        {
            dataGridView1.DataSource = null;
            dataGridView1.DataSource = DALCadastro.FluxoVendaTudo1();
            decimal soma = 0;
            int     cont = 0;

            if (dataGridView1.Rows.Count > 0)
            {
                for (int i = 0; i < dataGridView1.Rows.Count; i++)
                {
                    string prazo1 = dataGridView1.Rows[i].Cells[2].Value.ToString();
                    if (prazo1 == "a prazo")
                    {
                        cont++;
                    }
                    if (prazo1 == "não definido")
                    {
                        cont++;
                    }
                    if (prazo1 == "a prazo_parcial")
                    {
                        cont++;
                    }
                    if (prazo1 == "Pagamento Misto")
                    {
                        cont++;
                    }
                    if (cont == 0)
                    {
                        soma += Convert.ToDecimal(dataGridView1.Rows[i].Cells[6].Value);
                        dataGridView1.Rows[i].Cells[6].Style.BackColor = System.Drawing.Color.Cyan;
                    }
                    cont = 0;
                }
                textBox3.Text = Convert.ToString(soma);
            }
            dataGridView2.DataSource = DALCadastro.ListaAUXVendas(monthCalendar1.SelectionStart.Date.ToShortDateString());
            if (dataGridView2.Rows.Count > 0)
            {
                for (int i = 0; i < dataGridView2.Rows.Count; i++)
                {
                    if (dataGridView2.Rows[i].Cells[5].Value.ToString() == "Pagamento Fiado Parcial" || dataGridView2.Rows[i].Cells[5].Value.ToString() == "Pagamento Misto")
                    {
                        soma = soma + Convert.ToDecimal(dataGridView2.Rows[i].Cells[6].Value);
                        dataGridView2.Rows[i].Cells[6].Style.BackColor = System.Drawing.Color.Cyan;
                    }
                    else
                    {
                        if (checkBox1.Checked == true)
                        {
                            if (dataGridView2.Rows[i].Cells[1].Value.ToString() == "Saldo Inicial")
                            {
                                soma = soma + Convert.ToDecimal(dataGridView2.Rows[i].Cells[6].Value);
                                dataGridView2.Rows[i].Cells[6].Style.BackColor = System.Drawing.Color.Cyan;
                                textBox3.Text = Convert.ToString(soma);
                            }
                            else
                            {
                                soma = soma - Convert.ToDecimal(dataGridView2.Rows[i].Cells[6].Value);
                                dataGridView2.Rows[i].Cells[6].Style.BackColor = System.Drawing.Color.Coral;
                                textBox3.Text = Convert.ToString(soma);
                            }
                        }
                    }
                }
            }
            textBox3.Text = Convert.ToString(soma);
        }
 private void pictureBox5_Click(object sender, EventArgs e)
 {
     dataGridView1.DataSource = null;
     textBox3.Text            = "";
     if (String.IsNullOrEmpty(label6.Text) == false)
     {
         decimal soma = 0;
         int     cont = 0;
         dataGridView1.DataSource = DALCadastro.FluxoVendaTudoPag(monthCalendar1.SelectionStart.Date.ToShortDateString(), "cheque");
         if (dataGridView1.Rows.Count > 0)
         {
             for (int i = 0; i < dataGridView1.Rows.Count; i++)
             {
                 string prazo1 = dataGridView1.Rows[i].Cells[2].Value.ToString();
                 if (prazo1 == "a prazo")
                 {
                     cont++;
                 }
                 if (prazo1 == "a prazo_parcial")
                 {
                     cont++;
                 }
                 if (prazo1 == "Pagamento Misto")
                 {
                     cont++;
                 }
                 if (cont == 0)
                 {
                     soma += Convert.ToDecimal(dataGridView1.Rows[i].Cells[5].Value);
                     dataGridView1.Rows[i].Cells[5].Style.BackColor = System.Drawing.Color.Cyan;
                 }
                 cont = 0;
             }
             textBox3.Text = Convert.ToString(soma);
         }
         dataGridView2.DataSource = DALCadastro.ListaAUXVendas(monthCalendar1.SelectionStart.Date.ToShortDateString());
         if (dataGridView2.Rows.Count > 0)
         {
             for (int i = 0; i < dataGridView2.Rows.Count; i++)
             {
                 if (dataGridView2.Rows[i].Cells[5].Value.ToString() == "Pagamento Fiado Parcial" || dataGridView2.Rows[i].Cells[5].Value.ToString() == "Pagamento Misto")
                 {
                     if (dataGridView2.Rows[i].Cells[4].Value.ToString() == "cheque")
                     {
                         soma = soma + Convert.ToDecimal(dataGridView2.Rows[i].Cells[6].Value);
                         dataGridView2.Rows[i].Cells[6].Style.BackColor = System.Drawing.Color.Cyan;
                     }
                 }
                 else
                 {
                     if (checkBox1.Checked == true)
                     {
                         if (dataGridView2.Rows[i].Cells[1].Value.ToString() == "Saldo Inicial")
                         {
                             soma = soma + Convert.ToDecimal(dataGridView2.Rows[i].Cells[6].Value);
                             dataGridView2.Rows[i].Cells[6].Style.BackColor = System.Drawing.Color.Cyan;
                             textBox3.Text = Convert.ToString(soma);
                         }
                         else
                         {
                             soma = soma - Convert.ToDecimal(dataGridView2.Rows[i].Cells[6].Value);
                             dataGridView2.Rows[i].Cells[6].Style.BackColor = System.Drawing.Color.Coral;
                             textBox3.Text = Convert.ToString(soma);
                         }
                     }
                 }
             }
         }
         textBox3.Text = Convert.ToString(soma);
     }
     else
     {
         MessageBox.Show("Selecione uma Data");
     }
 }