使用科学记数法将数据从datagridview导出到csv

Question

I would like to allow the user in my application to select to export data to scientific notation, but only if it is a column of doubles. I plan on doing a simple check:

foreach (dataGridViewColumn col in dataGridView1.Columns
{
    if (col.GetType() == typeOf(Double)
     {
         // Perform data conversion from e.g 22.56 to scientific
     }
 }

What is the best way to do this? String.Format? Are there also additional checks I need to do?

Answer 1

Try the string.Format indeed :

string.Format("{0:E2}", MyNumber);

have a look at msdn Standard Numeric Format Strings for more information