Update app.py

app.py

@@ -24,7 +24,7 @@ entered_options = ["option1", "option2", "option3", "option5", "option6", "optio
 header_buttons = pn.Row(sizing_mode='stretch_width', css_classes=['header-buttons'])
 
 # "+" button to trigger the addition to the header
-add_to_header_button = pn.widgets.Button(name="",icon='search', icon_size='1.5em', button_type='default', styles={'background': '#f0f0f0'})
+add_to_header_button = pn.widgets.Button(name="", icon='search', icon_size='1.5em', button_type='default', styles={'background': '#f0f0f0'})
 
 # List to store the names of buttons to be added to the header
 buttons_to_add = []
@@ -33,8 +33,11 @@ buttons_to_add = []
 def add_to_header(event):
     selected_options = filter_list.value
     if selected_options:
-        buttons_to_add.extend(selected_options)  # Extend the list with selected options
-        filter_list.value = []  # Clear the selected options after adding them to the list
+        for option in selected_options:
+            if option not in buttons_to_add:  # Check if option is already in header
+                buttons_to_add.append(option)  # Add to header if not already present
+                filter_list.options.remove(option)  # Remove from filter list options
+        filter_list.value = []  # Clear the selected options after adding them to the header
         update_header()  # Update the header after adding options
 
 add_to_header_button.on_click(add_to_header)
@@ -47,9 +50,6 @@ def update_header():
         header_button.on_click(remove_from_header)  # Add callback to remove the header button
         header_buttons.append(header_button)
 
-    # Update the filter list options to exclude buttons that are already in the header
-    filter_list.options = [option for option in entered_options if option not in buttons_to_add]
-
 # MultiChoice widget to display the filter options with delete buttons
 filter_list = pn.widgets.MultiChoice(
     name='',
@@ -65,6 +65,7 @@ filter_list = pn.widgets.MultiChoice(
 def remove_from_header(event):
     button_name = event.name
     buttons_to_add.remove(button_name)  # Remove from the header buttons list
+    filter_list.options.append(button_name)  # Add back to the filter list options
     update_header()  # Update the header and filter list
 
 # Layout using Template