表格控件 Spread WPF-Silverlight 中自定义用户快捷键行为

表格控件 Spread WPF-Silverlight 本身内置了丰富的快捷键行为，用户可以同这些快捷键实现单元格选择，数据输入等行为，内置的快捷键如下表所示。

Key	Action	Action Name
Ctrl + Z	Cancels the last user operation.	Undo
Ctrl + Y	Repeats the last user operation.	Redo
Ctrl + Down Arrow	Moves the active cell to the last row.	NavigationBottom
Down Arrow	Moves the active cell down one cell.	NavigationDown
End	Moves the active cell to the end of the row.	NavigationEnd
Ctrl + Right Arrow	Moves the active cell to the end of the row.	NavigationEnd
Ctrl + Home	Moves the active cell to the first cell in the control.	NavigationFirst
Home	Moves the active cell to the first cell in the row.	NavigationHome
Ctrl + Left Arrow	Moves the active cell to the first cell in the row.	NavigationHome
Ctrl + End	Moves the active cell to the last cell in the control.	NavigationLast
Left Arrow	Moves the active cell to the first cell in the row.	NavigationLeft
Tab	Moves the active cell right to the next cell and down to the first cell in the next row when the active cell is at the end of a row.	CommitInputNavigationTabNext
Page Down	Moves the active cell down to the next set of rows.	NavigationPageDown
Ctrl + PageUp	Moves to the previous sheet.	NavigationPreviousSheet
PageUp	Moves the active cell up to the next set of rows.	NavigationPageUp
Shift + Tab	Moves the active cell left and wraps to the end of the previous row when the active cell is the first cell in the row.	CommitInputNavigationTabPrevious
Right Arrow	Moves the active cell one cell to the right.	NavigationRight
Up Arrow	Moves the active cell up a cell.	NavigationUp
Ctrl + Up Arrow	Moves the active cell to the first cell in the column.	NavigationTop
Delete	Clears the data in the cell if it is not in edit mode.	Clear
Backspace	Clears the cell data if the cell is not in edit mode or moves a character to the left if the cell is in edit mode.	ClearAndEditing
Enter	Moves the active cell down a cell and takes the cell out of edit mode.	CommitInputNavigationDown
Shift + Enter	Moves the active cell up a cell and takes the cell out of edit mode.	CommitInputNavigationUp
Escape	Removes the current typed characters if the cell is in edit mode.	CancelInput
Shift + Left Arrow	Extends the selection one cell to the left of the active cell if the cell is not in edit mode (selects characters if the cell is in edit mode).	SelectionLeft
Shift + Right Arrow	Extends the selection one cell to the right of the active cell if the cell is not in edit mode (selects characters if the cell is in edit mode).	SelectionRight
Shift + Up Arrow	Extends the selection up one cell from the active cell if the cell is not in edit mode (selects cell characters if the cell is in edit mode).	SelectionUp
Shift + Down Arrow	Extends the selection down one cell from the active cell if the cell is not in edit mode (selects cell characters if the cell is in edit mode)..	SelectionDown
Shift + Home	Extends the selection from the active cell to the first cell in the row (selects cell characters if the cell is in edit mode).	SelectionHome
Shift + Ctrl + Left Arrow	Extends the selection from the active cell to the first cell in the row.	SelectionHome
Shift + End	Extends the selection from the active cell to the last cell in the row.	SelectionEnd
Shift + Ctrl + Right Arrow	Extends the selection from the active cell to the last cell in the row.	SelectionEnd
Shift + Page Up	Extends the selection one page up from the active cell.	SelectionPageUp
Shift + Page Down	Extends the selection one page down from the active cell.	SelectionPageDown
Shift + Ctrl + Up Arrow	Extends the selection from the active cell up to the first cell in the column.	SelectionTop
Shift + Ctrl + Down Arrow	Extends the selection from the active cell down to the last cell in the column.	SelectionBottom
Shift + Ctrl + Home	Extends the selection from the active cell to the first cell in the control.	SelectionFirst
Shift + Ctrl + End	Extends the selection from the active cell to the last cell in the control.	SelectionLast
Ctrl + C	Copies the selection to the Clipboard.	Copy
Ctrl + X	Cuts the selection to the Clipboard.	Cut
Ctrl + V	Pastes the data from the Clipboard.	Paste
Alt + Enter	Creates and moves to a new line if the cell is in edit mode.	InputNewLine

但是，在运行Spread WPF-Silverlight应用程序时，我们会发现 Alt+Enter 键没用生效，其原因是在Silverlight中 Alt 键处理有些特别，所以，我们需要修改内置的快捷键行为来实现输入新行的功能，代码如下：

  1:     public MainPage()

  2:     {

  3:         InitializeComponent();

  5:         gcSpreadSheet1.View.KeyMap.Remove(new GrapeCity.Windows.SpreadSheet.UI.KeyStroke(Key.Enter,ModifierKeys.Alt));

  6:         gcSpreadSheet1.View.KeyMap.Add(new GrapeCity.Windows.SpreadSheet.UI.KeyStroke(Key.Enter, ModifierKeys.Control), SpreadActions.InputNewLine);

  7:     }

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