HidableInfragisticsColumn

HidableInfragisticsColumn wraps a single Infragistics.WebUI.UltraWebGrid.UltraGridColumn with the visibility state and visibility mode that InfragisticsGridCustomizer needs to decide whether the end user may toggle that column.

Purpose

• Tracks whether a specific grid column is currently visible, independent of the underlying UltraGridColumn.Hidden/ServerOnly flags, so InfragisticsGridCustomizer can compute changes before applying them to the live grid.
• Enforces BR-AJAX-002 at construction time: columns configured as AlwaysHidden are forced to ServerOnly = True immediately, ensuring they never render even before the customizer's checkbox list is shown.

Context

• Namespace: SAIF.Presentation.Web.Controls.V2.AJAX
• Assembly/package: SAIF.Presentation.Web.Controls.AJAX.Infragistics103

Public members

Member	Signature	Purpose
Column	ReadOnly Property Column() As UltraGridColumn	The wrapped Infragistics grid column instance
Key	ReadOnly Property Key() As String	The wrapped column's key, used for preference persistence and lookup
IsVisible	Property IsVisible() As Boolean	Whether this column is currently selected to be visible on the grid
VisibilityMode	Property VisibilityMode() As InfragisticsGridCustomizer.VisiblityModes	Whether this column is Normal (user-toggleable), AlwaysVisible, or AlwaysHidden
Hidden	Property Hidden() As Boolean	Proxies the wrapped column's Hidden flag
ServerOnly	Property ServerOnly() As Boolean	Proxies the wrapped column's ServerOnly flag
Header	ReadOnly Property Header() As ColumnHeader	The wrapped column's header, used to derive checkbox-list captions
New	Sub New(inColumn As UltraGridColumn, inIsVisible As Boolean, inVisibilityMode As InfragisticsGridCustomizer.VisiblityModes)	Initializes the wrapper, forcing ServerOnly = True immediately for AlwaysHidden columns

Behavioral notes

• For non-AlwaysHidden columns, the constructor resets Hidden/ServerOnly to False regardless of the caller-supplied inIsVisible* — actual visibility application happens later via InfragisticsGridCustomizer.ManipulateGrid, which inserts/removes the column from the grid's Columns collection rather than toggling Hidden.

Constraints and usage notes

• VisibilityMode's setter is Protected Friend — only InfragisticsGridCustomizer (same assembly) can change a column's visibility mode after construction.

Note: Statements marked with * were inferred from code structure, naming conventions, or contextual evidence where direct confirmation was not available in source artifacts. Statements marked with ** could not be confirmed; treat as unknown until verified.

Sources

• SAIF.Presentation.Web.Controls.AJAX.Infragistics103\InfragisticsGridCustomizer.vb