DataGridView::ShowCellToolTips Property
Gets or sets a value indicating whether or not ToolTips will show when the mouse pointer pauses on a cell.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
When the value of this property is true and the mouse pointer is over a cell, the cell displays a ToolTip when one of the following conditions is met:
The value of the DataSource property is not null or the value of the VirtualMode property is true, and a handler for the CellToolTipTextNeeded event sets the DataGridViewCellToolTipTextNeededEventArgs::ToolTipText property to a value other than String::Empty.
The ToolTipText property of the cell has a value other than String::Empty. Setting this property has no effect when there is a CellToolTipTextNeeded event handler because getting the value of the property automatically raises the event and returns the ToolTip text specified in the event handler.
The cell value is truncated in the cell display. When the value of the cell ToolTipText property value is String::Empty, the full value of the truncated cell value is displayed in the ToolTip.
Available since 2.0