fixed Alignment error and python version

Author: InesaFitsner

examples/flet_datatable2_example/pyproject.toml

@@ -3,7 +3,7 @@ name = "flet-datatable2-example"
 version = "1.0.0"
 description = ""
 readme = "README.md"
-requires-python = ">=3.9"
+requires-python = ">=3.10"
 authors = [
     { name = "Flet developer", email = "you@example.com" }
 ]

examples/flet_datatable2_example/src/main.py

@@ -1,31 +1,40 @@
 import logging
+import os
 
 import flet as ft
 from data import desserts
 
 from flet_datatable2 import DataColumn2, DataRow2, DataTable2, Size
 
 logging.basicConfig(level=logging.DEBUG)
+os.environ["FLET_PLATFORM"] = "macos"
 
 
 def main(page: ft.Page):
     page.vertical_alignment = ft.MainAxisAlignment.CENTER
     page.horizontal_alignment = ft.CrossAxisAlignment.CENTER
 
     def select_row(e):
+        print("on_select_row")
         e.control.selected = not e.control.selected
         e.control.update()
 
-    def sort_column(e):
-        dt.sort_column_index = e.column_index
-        dt.sort_ascending = e.ascending
-        sorted_desserts = sorted(
-            desserts,
-            key=lambda d: getattr(d, e.control.label.value.lower()),
-            reverse=not dt.sort_ascending,
-        )
-        dt.rows = get_data_rows(sorted_desserts)
-        dt.update()
+    # def sort_column(e):
+    #     print("on_sort")
+    #     #dt.sort_column_index = e.column_index
+    #     # dt.sort_ascending = e.ascending
+    #     # sorted_desserts = sorted(
+    #     #     desserts,
+    #     #     key=lambda d: getattr(d, e.control.label.value.lower()),
+    #     #     reverse=not dt.sort_ascending,
+    #     # )
+    #     # dt.rows = get_data_rows(sorted_desserts)
+    #     # dt.update()
+    def sort_column(e: ft.DataColumnSortEvent):
+        print(f"Sorting column {e.column_index}, ascending={e.ascending}")
+    
+    def all_selected(e):
+        print("All selected")
 
     def get_data_columns():
         data_columns = [
@@ -105,10 +114,11 @@ def get_data_rows(desserts):
             sort_ascending=True,
             bottom_margin=10,
             min_width=600,
+            on_select_all=all_selected,
             columns=get_data_columns(),
             rows=get_data_rows(desserts),
         ),
     )
 
-
-ft.app(main)
+ft.run(main, view=ft.AppView.FLET_APP, port=8550)
+# ft.app(main)

src/flet_datatable2/datatable2.py

@@ -94,7 +94,7 @@ class DataTable2(ft.ConstrainedControl):
     vertical_lines: Optional[ft.BorderSide] = None
     checkbox_horizontal_margin: ft.OptionalNumber = None
     checkbox_alignment: ft.Alignment = field(
-        default_factory=lambda: ft.alignment.center
+        default_factory=lambda: ft.Alignment.center()
     )
     column_spacing: ft.OptionalNumber = None
     data_row_color: ft.ControlStateValue[ft.ColorValue] = None

src/flutter/flet_datatable2/lib/src/datatable2.dart

@@ -149,6 +149,10 @@ class _DataTable2ControlState extends State<DataTable2Control> {
                         "sort", {"i": columnIndex, "a": ascending});
                   }
                 : null,
+            //},
+            // onSort: (columnIndex, ascending) {
+            //   column.triggerEvent("sort", {"i": columnIndex, "a": ascending});
+            // },
             label: column.buildWidget("label")!);
       }).toList(),
       rows: widget.control.children("rows").map((row) {