Question

I need to import data from text file (not separeted by commas, other way, different characters) to database (for example to mdf). Because datagridview loads data from database faster then from file. What is the best way?
Thank you

Answer 1

If using SQL Server (which .mdf suggests you are) you could try bulk inserting:

BULK
INSERT MyTable
FROM 'c:\myfile.txt'
WITH
(
FIELDTERMINATOR = ',',
ROWTERMINATOR = '\n'
)