c# - Checking value in column foreach row -


the datatable (dt) stores retrieved values of carid's , makes stores 3 rows within datatable, have datatable called dt2 stores carid's , makes, trying loop through each row in dt see if carid stored in dt exists in of rows in dt2, here have far:

datatable dt = w.getusercars(userid);  foreach (datarow dr in dt.rows) {   string carid = dr["carid"].tostring();  }

how do this?

you should able achieve using datatable.select() method. on right track. need add method find row(s) in dt2.

datatable dt = w.getusercars(userid); datarow[] foundrows;  foreach (datarow dr in dt.rows) {   string carid = dr["carid"].tostring();    foundrows = dt2.select("carid = " + carid);   // stuff here foundrows    foreach (datarow r in foundrows)   {     r.delete();   } }

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