Alert

new Alert("Warning", "This is an alert message");

// Error alert from ViewModel
new Alert("Error", "Invalid username or password")
    .BindOpen(ViewModel.ShowLoginError);

// Success confirmation
new Alert("Success", "Document saved successfully")
    .BindOpen(ViewModel.ShowSaveSuccess);

// Warning with action
new Alert("Warning", "Unsaved changes will be lost")
    .BindOpen(ViewModel.ShowUnsavedWarning);

// Dynamic error messages
var errorAlert = new Alert("Error", "")
    .BindOpen(ViewModel.ErrorMessage.Select(msg => !string.IsNullOrEmpty(msg)));

// Note: Alert constructor requires fixed strings, but you can create
// custom alert dialogs using Dialog + DialogContent for reactive content

// Validation error alert
new Alert("Validation Error", "Please check the required fields")
    .BindOpen(ViewModel.HasValidationErrors)
    .OnClose(() => ViewModel.ClearValidationErrors());

// Network error alert  
new Alert("Connection Error", "Unable to connect to server")
    .BindOpen(ViewModel.HasNetworkError);