Worksheet Freeze Panes
The Bootstrap Spreadsheet implements an Excel-inspired Freeze Panes functionality. This allows end-users to lock specific rows or columns in one area to keep this area of a worksheet visible while scrolling the worksheet content vertically or horizontally.
Using the Freeze Panes command from the View tab on the ribbon, end-users can freeze arbitrary panes (lock rows and/or columns based on the selection), freeze the top row, freeze the first column and unfreeze panes.
<dx:BootstrapSpreadsheet runat="server" ActiveTabIndex="1" ShowConfirmOnLosingChanges="false">
</dx:BootstrapSpreadsheet>