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-rw-r--r--vaadin-app/src/ch/asynk/helloworld/HelloWorldApp.java2
1 files changed, 2 insertions, 0 deletions
diff --git a/vaadin-app/src/ch/asynk/helloworld/HelloWorldApp.java b/vaadin-app/src/ch/asynk/helloworld/HelloWorldApp.java
index 455cbfb..5c35f6c 100644
--- a/vaadin-app/src/ch/asynk/helloworld/HelloWorldApp.java
+++ b/vaadin-app/src/ch/asynk/helloworld/HelloWorldApp.java
@@ -3,6 +3,7 @@ package ch.asynk.helloworld;
import java.util.Date;
import com.vaadin.Application;
+import com.vaadin.terminal.UserError;
import com.vaadin.ui.Window;
import com.vaadin.ui.Label;
import com.vaadin.ui.Button;
@@ -23,6 +24,7 @@ public class HelloWorldApp extends Application {
@Override
public void buttonClick(ClickEvent event) {
mainWindow.showNotification("The time is " + new Date());
+ event.getButton().setComponentError( new UserError("Stop pressing this button !!") );
}
}));
//