Fixed : Empty Rows shown at last page in Paginated data table (#132646)

Fixed empty rows at the last page in paginated data table

BEFORE:
![Before](https://github.com/flutter/flutter/assets/76067278/1f1e364c-df38-462f-b9fb-868554ce04a5)

AFTER:
![After](https://github.com/flutter/flutter/assets/76067278/80648a25-e9e6-4873-805f-b18c7c6a00af)

Issues resolves : #80421

packages/flutter/lib/src/material/paginated_data_table.dart

@@ -112,6 +112,7 @@ class PaginatedDataTable extends StatefulWidget {
     this.controller,
     this.primary,
     this.headingRowColor,
+    this.showEmptyRows = true,
   }) : assert(actions == null || (header != null)),
        assert(columns.isNotEmpty),
        assert(sortColumnIndex == null || (sortColumnIndex >= 0 && sortColumnIndex < columns.length)),
@@ -289,6 +290,14 @@ class PaginatedDataTable extends StatefulWidget {
    /// {@macro flutter.material.dataTable.headingRowColor}
   final MaterialStateProperty<Color?>? headingRowColor;
 
+  /// Controls the visibility of empty rows on the last page of a
+  /// [PaginatedDataTable].
+  ///
+  /// Defaults to `true`, which means empty rows will be populated on the
+  /// last page of the table if there is not enough content.
+  /// When set to `false`, empty rows will not be created.
+  final bool showEmptyRows;
+
   @override
   PaginatedDataTableState createState() => PaginatedDataTableState();
 }
@@ -407,8 +416,14 @@ class PaginatedDataTableState extends State<PaginatedDataTable> {
           haveProgressIndicator = true;
         }
       }
-      row ??= _getBlankRowFor(index);
-      result.add(row);
+
+      if (widget.showEmptyRows) {
+        row ??= _getBlankRowFor(index);
+      }
+
+      if (row != null) {
+        result.add(row);
+      }
     }
     return result;
   }
@@ -600,6 +615,9 @@ class PaginatedDataTableState extends State<PaginatedDataTable> {
                   ),
                 ),
               ),
+              if (!widget.showEmptyRows)
+                SizedBox(
+                    height: (widget.dataRowMaxHeight ?? kMinInteractiveDimension) * (widget.rowsPerPage - _rowCount + _firstRowIndex).clamp(0, widget.rowsPerPage)), // ignore_clamp_double_lint
               DefaultTextStyle(
                 style: footerTextStyle!,
                 child: IconTheme.merge(

packages/flutter/test/material/paginated_data_table_test.dart

@@ -303,6 +303,83 @@ void main() {
     expect(find.text('497–500 of 500'), findsOneWidget);
   });
 
+  testWidgetsWithLeakTracking('PaginatedDataTable Last Page Empty Space', (WidgetTester tester) async {
+    final TestDataSource source = TestDataSource();
+    int rowsPerPage = 3;
+    final int rowCount = source.rowCount;
+    addTearDown(source.dispose);
+
+    Widget buildTable(TestDataSource source, int rowsPerPage) {
+      return PaginatedDataTable(
+        header: const Text('Test table'),
+        source: source,
+        rowsPerPage: rowsPerPage,
+        showFirstLastButtons: true,
+        dataRowHeight: 46,
+        availableRowsPerPage: const <int>[
+          3, 6, 7, 8, 9,
+        ],
+        onRowsPerPageChanged: (int? rowsPerPage) {
+        },
+        onPageChanged: (int rowIndex) {
+        },
+        columns: const <DataColumn>[
+          DataColumn(label: Text('Name')),
+          DataColumn(label: Text('Calories'), numeric: true),
+          DataColumn(label: Text('Generation')),
+        ],
+        showEmptyRows: false,
+      );
+    }
+
+    await tester.pumpWidget(MaterialApp(
+      home: Scaffold(body: Center(child: buildTable(source, rowsPerPage)))
+    ));
+
+    expect(find.byWidgetPredicate((Widget widget) => widget is SizedBox && widget.height == 0), findsOneWidget);
+    await tester.tap(find.byIcon(Icons.skip_next));
+    await tester.pump();
+    expect(find.byWidgetPredicate((Widget widget) => widget is SizedBox && widget.height == (rowsPerPage - (rowCount % rowsPerPage)) * 46.0), findsOneWidget);
+
+    rowsPerPage = 6;
+    await tester.pumpWidget(MaterialApp(
+      home: buildTable(source, rowsPerPage)
+    ));
+
+    await tester.tap(find.byIcon(Icons.skip_previous));
+    await tester.pump();
+    expect(find.byWidgetPredicate((Widget widget) => widget is SizedBox && widget.height == 0), findsOneWidget);
+    await tester.tap(find.byIcon(Icons.skip_next));
+    await tester.pump();
+    expect(find.byWidgetPredicate((Widget widget) => widget is SizedBox && widget.height == (rowsPerPage - (rowCount % rowsPerPage)) * 46.0), findsOneWidget);
+
+    rowsPerPage = 7;
+
+    await tester.pumpWidget(MaterialApp(
+      home: buildTable(source, rowsPerPage)
+    ));
+    await tester.tap(find.byIcon(Icons.skip_previous));
+    await tester.pump();
+
+    expect(find.byWidgetPredicate((Widget widget) => widget is SizedBox && widget.height == 0), findsOneWidget);
+    await tester.tap(find.byIcon(Icons.skip_next));
+    await tester.pump();
+    expect(find.byWidgetPredicate((Widget widget) => widget is SizedBox && widget.height == (rowsPerPage - (rowCount % rowsPerPage)) * 46.0), findsOneWidget);
+
+    rowsPerPage = 8;
+
+    await tester.pumpWidget(MaterialApp(
+      home: buildTable(source, rowsPerPage)
+    ));
+    await tester.tap(find.byIcon(Icons.skip_previous));
+    await tester.pump();
+
+    expect(find.byWidgetPredicate((Widget widget) => widget is SizedBox && widget.height == 0), findsOneWidget);
+    await tester.tap(find.byIcon(Icons.skip_next));
+    await tester.pump();
+    expect(find.byWidgetPredicate((Widget widget) => widget is SizedBox && widget.height == (rowsPerPage - (rowCount % rowsPerPage)) * 46.0), findsOneWidget);
+  });
+
   testWidgetsWithLeakTracking('PaginatedDataTable control test', (WidgetTester tester) async {
     TestDataSource source = TestDataSource()
       ..generation = 42;