diff --git a/demo/Semi.Avalonia.Demo/Pages/TextBoxDemo.axaml b/demo/Semi.Avalonia.Demo/Pages/TextBoxDemo.axaml
index 025216f..6d6335c 100644
--- a/demo/Semi.Avalonia.Demo/Pages/TextBoxDemo.axaml
+++ b/demo/Semi.Avalonia.Demo/Pages/TextBoxDemo.axaml
@@ -15,6 +15,7 @@
             <TextBox Width="300" Classes="revealPasswordButton" Text="123456" />
             <TextBox
                 Width="300"
+                IsReadOnly="True"
                 Classes="ClearButton RevealPasswordButton"
                 InnerLeftContent="https://"
                 InnerRightContent=".com"