Go to current row in a paginated sfDataGrid after rebuild

[Stefan Tsalapatis]

Selecting a row in a specific page of the grid, we open a new form . Returning to Grid, it will be rebuilt. How we can display the selected row in the specific page, automatically ?

[Tamilarasan Paranthaman]

 Hi Stefan Tsalapatis, 

You can achieve the requirement by maintaining the selected DataGrid row with the page index in the local collection. In the onPageNavigationStart callback, add the selected rows in the DataGrid controller to a local collection. In the onPageNavigationEnd callback, map selected rows in the collection to DataGrid controller selected rows property based on the page index. We have prepared a sample for that, please check the following sample and code snippet  

Code Snippet: 

Map<String, List<DataGridRow>> selectedRowsCollection = {}; 

List<DataGridRow> selectedRows = []; 

 

SfDataPager( 

                  pageCount: ((_employees.length / _rowsPerPage).ceil()).toDouble(), 

                  direction: Axis.horizontal, 

                  delegate: _employeeDataSource, 

                  controller: _dataPagerController, 

                  onPageNavigationStart: (int pageIndex) { 

                    selectedRows = _dataGridController.selectedRows; 

                    selectedRowsCollection[ 

                            _dataPagerController.selectedPageIndex.toString()] = 

                        selectedRows.toList(); 

                  }, 

                  onPageNavigationEnd: (int pageIndex) { 

                    if (selectedRowsCollection.containsKey('$pageIndex') && 

                        selectedRowsCollection['$pageIndex'] != null && 

                        selectedRowsCollection['$pageIndex']!.isNotEmpty) { 

                      _dataGridController.selectedRows = 

                          selectedRowsCollection['$pageIndex']!; 

                    } 

              }), 

 

Sample Link:  

https://www.syncfusion.com/downloads/support/directtrac/general/ze/main-135201868 

 

We hope this helps. If we misunderstood anything, please modify the above sample based on your requirement. It will be helpful for us to check on it and provide you with the solution at the earliest. 

  

Regards, 

Tamilarasan P