create sidebar slider in the right place

stand/webapp.py

@@ -33,12 +33,20 @@ df = restapi.data
 download(df)
 
 
+height = st.sidebar.slider(
+    "Grid Height",
+    min_value=100, max_value=1500, value=500, step=10,
+    key="grid_height"
+)
+
+
 # if df in restapi changed, we need to reload it into aggrid.
 # if df in restapi did not change, we do not reload to ensure changes in the browser persist.
 
 response = aggrid(
     df,
-    reload_data=changed
+    reload_data=changed,
+    height=height
 )
 
 

stand/widgets/aggrid.py

@@ -1,8 +1,7 @@
-import streamlit as st
 from st_aggrid import AgGrid, GridOptionsBuilder
 
 
-def aggrid(df, reload_data=False):
+def aggrid(df, reload_data=False, height=500):
     df = df[::-1] # display in reversed chronological order
 
     gob = GridOptionsBuilder.from_dataframe(
@@ -14,12 +13,6 @@ def aggrid(df, reload_data=False):
         sortable=True
     )
 
-    height = st.sidebar.slider(
-        "Grid Height",
-        min_value=100, max_value=1500, value=500, step=10,
-        key="gridheight"
-    )
-
 #    gob.configure_auto_height(True)
     go = gob.build()