The simplest usage for short messages. <ResourceDictionary Source="pack://application:,,,/AntdWpf;component/Themes/Theme.xaml" />\n\n xmlns:antd="https://github.com/ShrlAlgo/AntdWpf"\n\n <antd:Alert Type="Success" Message="Success Text" /> To show close button. Warning Text Warning Text Warning TextW arning Text Warning Text Warning TextWarning Text Error Description Error Description Error Description Error Description Error Description Error Description <ResourceDictionary Source="pack://application:,,,/AntdWpf;component/Themes/Theme.xaml" />\n\n xmlns:antd="https://github.com/ShrlAlgo/AntdWpf"\n\n <StackPanel>\n \t<antd:Alert Type="Warning" Closable="True" VerticalContentAlignment="Top">\n \t\tWarning Text Warning Text Warning TextW arning Text Warning Text Warning TextWarning Text\n \t</antd:Alert>\n \t<antd:Alert Type="Error" Message="Error Text" Closable="True">\n \t\t<antd:Alert.Description>\n \t\tError Description Error Description Error Description Error Description Error Description Error Description\n \t\t</antd:Alert.Description>\n \t</antd:Alert>\n </StackPanel> Decent icon make information more clear and more friendly. <ResourceDictionary Source="pack://application:,,,/AntdWpf;component/Themes/Theme.xaml" />\n\n xmlns:antd="https://github.com/ShrlAlgo/AntdWpf"\n\n <StackPanel>\n \t<antd:Alert Type="Success" Message="Success Tips" ShowIcon="True" />\n \t<antd:Alert Message="Informational Notes" ShowIcon="True" />\n \t<antd:Alert Type="Warning" Message="Warning" ShowIcon="True" />\n \t<antd:Alert Type="Error" Message="Error" ShowIcon="True" />\n \t<antd:Alert Type="Success" Message="Success Tips" Description="Detailed description and advices about successful copywriting." ShowIcon="True" />\n \t<antd:Alert Message="Informational Notes" Description="Additional description and informations about copywriting." ShowIcon="True" />\n \t<antd:Alert Type="Warning" Message="Warning" Description="This is a warning notice about copywriting." ShowIcon="True" />\n \t<antd:Alert Type="Error" Message="Error" Description="This is an error message about copywriting." ShowIcon="True" />\n </StackPanel> There are 4 types of Alert: `Success`, `Info`, `Warning`, `Error`. <ResourceDictionary Source="pack://application:,,,/AntdWpf;component/Themes/Theme.xaml" />\n\n xmlns:antd="https://github.com/ShrlAlgo/AntdWpf"\n\n <StackPanel>\n \t<antd:Alert Type="Success" Message="Success Text" />\n \t<antd:Alert Message="Info Text" />\n \t<antd:Alert Type="Warning" Message="Warning Text" />\n \t<antd:Alert Type="Error" Message="Error Text" />\n </StackPanel> Additional description for alert message. <ResourceDictionary Source="pack://application:,,,/AntdWpf;component/Themes/Theme.xaml" />\n\n xmlns:antd="https://github.com/ShrlAlgo/AntdWpf"\n\n <StackPanel>\n \t<antd:Alert Type="Success" Message="Success Text" Margin="0 0 0 16" />\n \t<antd:Alert Message="Info Text" Margin="0 0 0 16" />\n \t<antd:Alert Type="Warning" Message="Warning Text" Margin="0 0 0 16" />\n \t<antd:Alert Type="Error" Message="Error Text" />\n </StackPanel> Replace the default icon with customized text. <ResourceDictionary Source="pack://application:,,,/AntdWpf;component/Themes/Theme.xaml" />\n\n xmlns:antd="https://github.com/ShrlAlgo/AntdWpf"\n\n <StackPanel>\n \t<antd:Alert Message="Info Text" CloseText="Close Now" />\n </StackPanel> Smoothly and unaffectedly unmount Alert. <ResourceDictionary Source="pack://application:,,,/AntdWpf;component/Themes/Theme.xaml" />\n\n xmlns:antd="https://github.com/ShrlAlgo/AntdWpf"\n\n <StackPanel>\n \t<antd:Alert Message="Alert Message Text" Closable="True" />\n \t<TextBlock Text="placeholder text here" />\n </StackPanel>