This example demonstrates how to use the WinForms ToolTipController component to display hints for items in a radio group.
The example assigns the ToolTipController to the radio group's ToolTipController property and handles the ToolTipController.GetActiveObjectInfo event to display an item's description in the tooltip:
private void toolTipController1_GetActiveObjectInfo(object sender, DevExpress.Utils.ToolTipControllerGetActiveObjectInfoEventArgs e) { RadioGroup rg = e.SelectedControl as RadioGroup; if (rg == null) return; for (int i = 0; i < rGroup.Properties.Items.Count; i++) { Rectangle rect = rGroup.GetItemRectangle(i); if (rect.Contains(e.ControlMousePosition)) { e.Info = new ToolTipControlInfo(i, rGroup.Properties.Items[i].Description); break; } } }
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