DataGridView.OnCellValueNeeded Method (DataGridViewCellValueEventArgs)
Raises the CellValueNeeded event.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
Parameters
- e
-
Type:
System.Windows.Forms.DataGridViewCellValueEventArgs
A DataGridViewCellValueEventArgs that contains the event data.
| Exception | Condition |
|---|---|
| ArgumentOutOfRangeException | The value of the ColumnIndex property of e is less than zero or greater than the number of columns in the control minus one. -or- The value of the RowIndex property of e is less than zero or greater than the number of rows in the control minus one. |
Raising an event invokes the event handler through a delegate. For more information, see NIB: Raising an Event.
The OnCellValueNeeded method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.
Notes to Inheritors:
When overriding OnCellValueNeeded in a derived class, be sure to call the base class's OnCellValueNeeded method so that registered delegates receive the event.
Available since 2.0