c# - How to fix 'System.OutOfMemoryException' occurred in mscorlib.dll after unison scrolling -

i have 2 datagriviews, requirements both datagriviews need scroll in unison allow user able see ‘input’. clarify:

1. i create new file browsing original file,
2. when loads (grid1) loads 1 grid being empty (grid2) i'm able input grid2.

all menotined above working fine can save , edit file. created unison scrolling scrolls 1 row , throws error below,

error: unhandled exception of type 'system.outofmemoryexception' occurred in mscorlib.dll

scrolling code,

private void gridview1_scroll(object sender, scrolleventargs e) {     foreach (datagridviewrow _row in gridview1.rows)     {         (int n = 0; n < gridview1.columns.count; n++)         {             gridview1.scroll += new system.windows.forms.scrolleventhandler(gridview1_scroll);  //it throws error here.         }     }      foreach (datagridviewrow _roww in gridview2.rows)     {         (int nn = 0; nn < gridview2.columns.count; nn++)         {             gridview2.firstdisplayedscrollingrowindex = gridview1.firstdisplayedscrollingrowindex;         }     } } 

move part:

gridview1.scroll += new system.windows.forms.scrolleventhandler(gridview1_scroll); 

to form's constructor. loops unnecessary (the code not depend on loop variables _row , n).

also, in part:

foreach (datagridviewrow _roww in gridview2.rows) {   (int nn = 0; nn < gridview2.columns.count; nn++)   {     gridview2.firstdisplayedscrollingrowindex = gridview1.firstdisplayedscrollingrowindex;   } } 

loops not needed. part:

gridview2.firstdisplayedscrollingrowindex = gridview1.firstdisplayedscrollingrowindex; 

will work - note not depend on loop variables _roww , nn.