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Navigation: Code Documentation > RSCharting > RSChartPanel > Classes > TRSCustomChart > Methods

TRSCustomChart.BeginUpdate Method

Suspends screen repainting of the chart. The BeginUpdate method suspends screen repainting and change events until the EndUpdate method is called. Use BeginUpdate to speed processing and avoid flicker while items are added to or deleted from a collection.

Namespace: RSChartPanel

The following example uses the BeginUpdate and EndUpdate methods to speed processing of the chart by suspending change events and screen painting:

Delphi
var i: Integer; begin Chart1.BeginUpdate; try Chart1.Color := crRed; // usually fires change events for i := 0 to Chart1.Values.Count - 1 do Chart1.Values[i].Value := Chart1.Values[i].Value * 0.1; finally Chart1.EndUpdate; end; end;

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