in the top right corner and in drop-down menu select or deselect checkboxes for columns to show or hide. ColumnVisibilityChanging: function (sender, args);
sender. Event source.
args. Event information. Available arguments: Column is the index of column with modified visibility; Visibility is column visibility: true - column is visible, false - column is elapsed; Cancel- attribute of checkbox selection/deselection cancellation to modify column visibility: true - operation is cancelled, false (by default) - operation is not cancelled.
The ColumnVisibilityChanging event occurs on changing visibility of a tree column.
Layout of column headings is available if the TreeList.CaptionVisible property is set to true.
To show or hide tree column, press the button in the top right corner and in drop-down menu select or deselect checkboxes for columns to show or hide.
The example of use is given in the TreeList.ColumnVisibilityChanged event description.
See also: