如何在DataGridview中更改另一个单元格值时更改一个单元格的值

Question

例如：如果我要更改MRP列，则应将该值与另一个名为No_of_Units列值相乘，并且结果应存储在名为Total列中，谢谢

Answer 1

You mean something like this ?

private void DataGridView1_CellValueChanged(object sender, DataGridViewCellEventArgs e)
{
    if (e.ColumnIndex == index of column MRP)
    {
        int value = (int)DataGridView1.Rows[e.RowIndex].Cells["NO_OF_UNITS"].Value * (int)DataGridView1.Rows[e.RowIndex].Cells["MRP"].Value;
        DataGridView1.Rows[e.RowIndex].Cells["TARGET_COLUMN"].Value = value;
    }
}

This answer is simplified, you might need some additional checks, like check on null values and that kind of stuff. But it should get you on your way.

In your comment you asked:

How to get the index of column MRP ?

Click on the datagrid. Find the property Columns and click on the little button in the list of columns, find the column MRP and copy the Name property. This could be MRP but it also be DataGridColumn1 or something.

Suppose the name property is 'MRP' than you can do:

if (e.ColumnIndex == MRP.ColumnIndex)