Dashboard: file overwrite dialog

Hi Claudio,

There are two ways to initiate dashboard saving. The first one is about clicking the "Save" menu command (no built-in notification) and the second one is about attempting to close the current dashboard (there, we show a built-in notification that warns about possible data lost).

What do you wish to customize? If it's about usage scenario #1, use ToolboxExtension.menuItems to access dashboard menu items. This property returns a list of DashboardMenuItem objects. You can find the "Save" item there and then override its click callback:

JavaScript
function onBeforeRender(sender) {
    var dashboardControl = sender.GetDashboardControl();
    var toolbox = dashboardControl.findExtension('toolbox');
    var itemParameters = toolbox.menuItems().filter(item => item.id === "save")[0];
    const defaultSave = itemParameters.click;
    itemParameters.click = function () { 
        if (confirm('Are you sure you want to override?')) {
            defaultSave();
        };
    };
}

If it's about #2 (you do not like our built-in dialog), follow the solution shared in the following ticket: Web Dashboard - Dashboard Save event. Note: the performSaveDashboard method must always return a promise-like object.