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ChartDesigner.HelpRequested Event

Occurs when a user requests help for the Chart Designer.

Namespace: DevExpress.XtraCharts.Designer

Assembly: DevExpress.XtraCharts.v24.2.Wizard.dll

NuGet Package: DevExpress.Win.Charts

#Declaration

public event ChartDesignerHelpRequestedEventHandler HelpRequested

#Event Data

The HelpRequested event's data class is EventArgs.

#Remarks

The user should press F1 to request help.

#Example

The following code invokes a custom help dialog for the Chart Designer when a user requests help:

private void OnSimpleButtonClick(object sender, EventArgs e) {
    ChartDesigner designer = new ChartDesigner(chartControl1);
    designer.HelpRequested += OnDesignerHelpRequested;
    designer.ShowDialog(false);
}

private void OnDesignerHelpRequested(object sender, EventArgs e) {
    // Create a help form that is the System.Windows.Forms.Form class descendant.
    using (HelpForm helpForm = new HelpForm()) {
        helpForm.ShowDialog();
    }
}
See Also