Question

I have a Datagridview in my C# program that contain numeric data.

I need to sum all column A and all column B.

(I don’t want to use any SQL queries.)

How Do I do this?

Thanks in advance.

Answer 1

Use gridView.DataSource. It can be either an IList Interface or an IListSource Interface which has a method GetList() that returns an IList. So you can basically run a summing method on it’s members.

Or if you know the exact type in DataSource, you can aggregate the data using specific methods of the object in there (even use the Enumerable.Sum Method if possible).

or

decimal sum;
foreach (DataGridViewRow row in dataGridView.Rows)
{
  sum += (decimal)row[0].Value + (decimal)row[1].Value;
}