WinForms › Explorer Bar › BinaryExplorerBarPanelTitleClickedHandler

BinaryExplorerBarPanelTitleClickedHandler

delegate.NET 6 / 8 / 10.NET Framework 4.8Binarymission.WinForms.Controls.NavigationControls

Represents the method that handles BinaryExplorerBar.BinaryExplorerBarPanelTitleClicked, and decides whether the clicked panel is allowed to expand or collapse.

public delegate bool BinaryExplorerBarPanelTitleClickedHandler(object sender, BinaryExplorerBarPanel thePanelObject);

Remarks

The handler runs before the panel changes state, so it can check whether the panel's content is ready, ask the user to save work in a panel that is about to collapse, or keep a panel permanently open.

Examples

explorerBar.BinaryExplorerBarPanelTitleClicked += (sender, panel) =>
{
    // The "Order details" panel stays open while an order is being edited.
    bool collapsing = panel.CurrentExplorerBarPanelState == BinaryExplorerBarPanelState.Expanded;
    return !(panel == orderDetailsPanel && collapsing && orderIsBeingEdited);
};