Bit Bit - 2 months ago 10
C# Question

What is the fastest way to load a big data set into a GridView?

I have a data source with 1.4+ millions rows in it, and growing.

We make the users add filters to cut the called data down, but you are still looking at 43,000+/- to 100,000 +/- rows at a time.

Before any one says, no one can look at that many rows anyway, they are exported to a excel workbook for calculations based on them.

I am loading the result as follows in the GridView from the CSV file that is returned:

Object result =;
CSVReader csvReader = new CSVReader(result);
DataTable dataTable = csvReader.CreateDataTable(true, true);

If(dataTable != null)
gridView1.DataSource = dataTable;

CSVReader is a CSV Parser.

My question is, is this the best and most efficient way to load a large data set to a gridview?

EDIT: Would using a list for the rows or something other than a data table be better?


I think there is only one way to load the large data set into grid-view and it is the one you are using right now, but if you want to make the performance better I highly recommend using pagination so you have chunks of data loaded on every page therefore you will decrease the loading time