WebFormSectionExpandedInTheseStates Property

Gets or sets the list of states' ids in which the section is expanded. Only applicable if the UseCollapsableSections property (parent WebForm) is TRUE.

If this list is empty, the section will always be collapsed.

If this list contains 0, the section will always be expanded.

If the list is not empty and does not contain 0, the section will be expanded at the specified states and collapsed else.

public List<int> ExpandedInTheseStates { get; set; }