Hi There,
As you already have data in data table say dt1, scrape the data from the application to a data table ( as it is structured data ) and save it to another data table say dt2.
Now get the row count of dt1 using dt1.Rows.Count.
Get Column count using dt1.Columns.Count.
Create 4 int32 variables say i1, i2, j1, j2 where i1, i2 are used as row increments for dt1, dt2 respectively and j1, j2 are for columns similarly.
Write a condition to check value from row 1 column 1 in dt1 matches with row 1 column 1 in dt2
say (dt1)(i1)(j1).Tostring).equals ((dt2)(i2)(j2).Tostring)
and put it in a while loop which runs till row count of dt1 is reached.
Hope this helps 