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Tree List - Fixed and Sticky Columns

A horizontal scrollbar appears when the total width of all columns exceeds the TreeList component's width. To keep a column visible when scrolling, set the columnFixing.enabled property to true.

To fix a column programmatically, set its fixed property to true and select the column's fixedPosition:

  • 'left' (default if fixed: true)
    The column is fixed to the left edge of the grid.

  • 'right'
    The column is fixed to the right edge of the grid.

  • 'sticky'
    The column sticks to left and right edges when it reaches them.

To fix or unfix a column, users should right-click the column's header and select the corresponding operation in the context menu. To prevent users from fixing or unfixing a column, set its allowFixing property to false.

Backend API