IsOverlapped: Boolean;
IsOverlapped: Boolean;
The IsOverlapped property determines whether a legend is hidden due to lack of space on the chart.
Available values:
True. A legend is hidden due to lack of space in the chart area.
False. A legend is not hidden due to lack of space in the chart area.
To execute the example, on the form place the Button, ChartBox and UiErAnalyzer components (in the Fore.NET example use the ChartBoxNet and UiErAnalyzerNet components) named BUTTON1 and BUTTON2, CHARTBOX1/CHARTBOXNET1 and UIERANALYZER1/UIERANALYZERNET1 respectively. In the ChartBox/ChartBoxNet component set the Source/UiSource property to UiErAnalyzer1/UiErAnalyzerNet1. In the Button1 component set the Text property to Hide Legend, in the Button2 component set the Show Legend value. There should be an express report specified as the Object property for the UiErAnalyzer/UiErAnalyzerNet component.
Add links to the Chart, Forms, Express, Forms.NET (for Fore.NET example) system assemblies.
Sub Button1OnClick(Sender: Object; Args: IMouseEventArgs);
Var
Chart: IChart;
ChartLegend: IChartLegend;
Begin
Chart := ChartBox1.Chart;
ChartLegend := Chart.Legend;
ChartLegend.IsOverlapped := True;
ChartBox1.Chart.Refresh;
End Sub Button1OnClick;
Sub Button2OnClick(Sender: Object; Args: IMouseEventArgs);
Var
Chart: IChart;
ChartLegend: IChartLegend;
Begin
Chart := ChartBox1.Chart;
ChartLegend := Chart.Legend;
ChartLegend.IsOverlapped := False;
ChartBox1.Chart.Refresh;
End Sub Button2OnClick;
Imports Prognoz.Platform.Forms.Net;
Imports Prognoz.Platform.Interop.Chart;
Imports Prognoz.Platform.Interop.Forms;
…
Private Sub button1_Click(sender: System.Object; e: System.EventArgs);
Var
Chart: IChart;
ChartLegend: IChartLegend;
Begin
Chart := ChartBoxNet1.CtrlBox.Chart;
ChartLegend := Chart.Legend;
ChartLegend.IsOverlapped := True;
End Sub;
Private Sub button2_Click(sender: System.Object; e: System.EventArgs);
Var
Chart: IChart;
ChartLegend: IChartLegend;
Begin
Chart := ChartBoxNet1.CtrlBox.Chart;
ChartLegend := Chart.Legend;
ChartLegend.IsOverlapped := False;
End Sub;
Clicking the Hide Legend button hides the legend because there is not enough space for it on the chart, for example:
Clicking the Show Legend button does not hide the legend even if there is no enough space for it on the chart, for example:
See also: