Winform datagridview wheel control event

 

  ///   <Summary>  
  3    ///  Add a scroll wheel event to the datagridview
  4    ///   </Summary>  
  5    ///   <Param name = "datagridview1"> </param>  
  6  Public   Static   Void  Bindmousewheel (system. Windows. Forms. datagridview datagridatagri1)
  7   {
  8   Datagridview1.mousewheel  + =   New  System. Windows. Forms. mouseeventhandler (maid );
  9   Datagridview1.tabindex  =  0  ;  //  Focus  
  10   }
  11   
  12    Static   Void  Datagridview#mousewheel (  Object  Sender, system. Windows. Forms. mouseeventargs E)
  13  {
  14   Datagridview datagridatagri1  =  Sender  As  Datagridview;
  15    Try  
  16   {
  17    If  (Maid  ! =  Null  )
  18   {
  19   Datagridviewcell DVC  =  Datagridview1.currentcell;
  20    Int  Ri  =  DVC. rowindex;
  21    Int  Ci =  DVC. columnindex;
  22    If  (E. Delta  >   0  )  //  Up  
  23   {
  24    If  (Ri  >  0  )
  25   {
  26   DVC  =  Datagridview1.rows [ri  -   1  ]. Cells [CI];
  27   Datagridview1.currentcell  =  DVC;
  28  }
  29   }
  30    Else  
  31   {
  32    If  (Ri  <  Datagridview1.rows. Count  -   1  )
 33   {
  34   DVC  =  Datagridview1.rows [ri  +   1  ]. Cells [CI];
  35   Datagridview1.currentcell  =  DVC;
  36   }
 37   }
  38   }
  39   }
  40    Catch  
  41   {
  42    Return  ;
  43   }
 44   } 

 

 

 

 

 

 

Reference: http://archive.cnblogs.com/a/1768664/