Keyboard Support
    Note: Changing the shortcuts used for accessing RadGrid can tally with browser shortcuts which have higher priority.
    The keyboard navigation feature of Telerik RadGrid allows you to:
    Focus
    
        - Focus the grid through a user-specified key combination
Navigate
    
        - Up Arrow/Down Arrow - navigate through the grid records
- Page up/Page down - advance/return the pager
Select
    
        - Space - select grid items
- Ctrl + Shift - select multiple grid item
Edit/Insert
    
        - Ctrl + I - insert a new item
- Enter - edit rows
- Enter - update/insert rows
- Esc - exit EDIT/INSERT mode
Expand/Collapse
    
        - Left Arrow + Right Arrow - Expand/Collapse detail tables
    To enable this feature you have to set the 
ClientSettings -> AllowKeyboardNavigation 
    property of the grid to 
true (it's default value is 
false). 
    The grid also features an additional property 
ClientSettings -> KeyboardNavigationSettings ->
     EnableKeyboardShortcuts which when set to false will disable all keyboard navigation shortcuts
     except for the 
Up/Down and 
Page Up]/Page Down keys.
     This is done with a view to facilitating the developer if he intends to implement his own scenario if the
     above-listed keys (with the exceptions mentioned) have been pressed.
    
    
    To specify the key combination that focuses the grid you need to set the 
ClientSettings -> KeyboardNavigationSettings -> FocusKey - 
    the first key is preset to 
Ctrl by design. 
    
    
    The 
ClientSettings -> KeyboardNavigationSettings -> InitInsertKey and
    
ClientSettings -> KeyboardNavigationSettings -> RebindKey properties are used 
    to provide shortcuts for  opening RadGrid insert form and for rebinding RadGrid.  The default values are
     
Ctrl + 
I and 
Ctrl
    + 
R respectively  where the first key is preset to 
Ctrl by design.
    
    
    The ClientSettings -> KeyboardNavigationSettings -> ExpandDetailTableKey and ClientSettings -> 
    KeyboardNavigationSettings -> CollapseDetailTableKey properties are used to provide shortcuts for expanding
     or collapsing the  active row's detail table. The default values are 
Left Arrow Key
    and 
Right Arrow Key. Upon changing these values, you will need to hold 
Shift
    down for the new keys to take effect.
    
    
    To enable the Update/Insert rows by hitting the 
Enter key feature you have to set the
     
KeyboardNavigationSettings -> AllowSubmitOnEnter property to 
True.  Also enable the validation when 
AllowSubmitOnEnter
    is set to 
True you have to set the 
ValidationSettings -> EnableValidation to 
True and specify 
    which command needs validation through 
CommandsToValidate property:
    
    
    <ValidationSettings CommandsToValidate="PefrormInsert, Update" EnableValidation="true"  />
    
    
    To validate a secific validation group you have to set the 
KeyboardNavigationSettings -> ValidationGroup
    property to the name of the group:
    
    
    <KeyboardNavigationSettings EnableKeyboardShortcuts="true"
    AllowSubmitOnEnter="true" ValidationGroup="CustomValidatioGroup"  />
    
    
    To allow the active row to cycle to the beginning upon having reached the end of the grid table, you have to set 
    
ClientSettings -> KeyboardNavigationSettings     -> AllowActiveRowCycle property to 
    
true.
    
    The keyboard navigation is especially useful when you do not want your user to be
     dependand on mouse clicks when interacting with the control. It is designed in par with the Section 508  accessibility
     standards.