using System.Windows.Input; namespace Filtration.ThemeEditor.Views { public partial class ThemeComponentControl { public ThemeComponentControl() { InitializeComponent(); } private void ColorPicker_OnMouseDown(object sender, MouseButtonEventArgs e) { // For some reason if we don't mark OnMouseDown events as handled for this control // it ignores them and they end up getting picked up by the parent ListBoxItem instead, // resulting in the Advanced tab not being clickable. e.Handled = true; } } }