TcxHintStyle.BeginUpdate Method

Postpones hint style setting changes until an EndUpdate procedure call.

Declaration

procedure BeginUpdate;

Remarks

Every time you change a hint style setting, the hint controller redraws the displayed hint to reflect the change. Enclose multiple hint style setting changes between BeginUpdate and EndUpdate procedure calls to avoid UI flickering due to excessive redraw operations and improve performance.

BeginUpdate/EndUpdate and Batch Changes

A BeginUpdate procedure call disables notifications and postpones all changes until an EndUpdate call. A subsequent EndUpdate call does the following:

• Re-enables change notifications and redraw operations
• Applies all changes made after a BeginUpdate call
• Sends corresponding notifications in a batch
• Redraws the visible hint window

Note

Ensure that every BeginUpdate procedure call is followed by an EndUpdate procedure call, even if an exception occurs. Otherwise, the application UI will remain frozen and unresponsive.