[Python] Shiny for Python has no acces to datagrid. dataframe

@reactive.Effect
@reactive.event(input.personnel_grid_selected_rows)
def show_person_modal():
selected_rows = input.personnel_grid_selected_rows()

if selected_rows:
print(f"Selected Rows: {input.personnel_grid_selected.get()}")

# Get the current data from the selected rows
df = pd.DataFrame(input.personnel_grid_selected)
print(df)
if not df.empty:
# Get the first selected row index
row_index = selected_rows[0]
row_data = df.iloc[row_index]

# Build modal content
content = ui.div(
ui.h4(f"{row_data['First Name']} {row_data['Last Name']}"),
ui.p(f"Email: {row_data['Email']}"),
ui.p(f"Phone: {row_data['Phone']}")
)

# Show modal
ui.modal_show(
ui.modal(
content,
title="Person Details",
easy_close=True,
size="s"
)
)


The key change is using input.personnel_grid_data() which should give us access to the DataGrid's data. This should be the correct way to access the data from a Shiny DataGrid component. But it doesn't work it even exit the methode. Some idea's why?

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