DataGrdiVeiw คือต้องการ เอาตัวเลขในชื่อ ราคา มารวม Sum Total กันแล้ว โชว์ใน Textbox

int row = datagridview1.rowcount;
int money = 0;
for(int i = 0 ; i < row ; i++)
{
   int wage = convert.toint32(datagridview1.rows[i].cells[7].value.tostring());
   int amount = convert.toint32(datagridview1.rows[i].cells[5].value.tostring());
   int price = convert.toint32(datagridview1.rows[i].cells[4].value.tostring());
   int discount = convert.toint32(datagridview1.rows[i].cells[6].value.tostring());
   int total =  wage+(amount*(price-(price*discount)/100)));
   datagridview1.rows[i].cells[8].value = total.tostring();
   money = money+total;
}
textbox1.text = money.tostring();

Dim money As Integer = 0
For i As Integer = 0 To row - 1
	Dim wage As Integer = convert.toint32(datagridview1.rows(i).cells(7).value.tostring())
	Dim amount As Integer = convert.toint32(datagridview1.rows(i).cells(5).value.tostring())
	Dim price As Integer = convert.toint32(datagridview1.rows(i).cells(4).value.tostring())

	Dim discount As Integer = convert.toint32(datagridview1.rows(i).cells(6).value.tostring())
Next
textbox1.text = money.tostring()