Always keep one selected row

[Yossef Zaig]

Hi,

Xamarin Forms + SyncFusion Grid, Version 15.3.0.26, The tests are on UWP application

I am adding / updating / deleting rows of grid using source code, updating the grid itemsource in the viewmodel

After I add new row to the Grid, I select the new row as selected, this works ok
After I delete a row I want that the row after the deleted row will be selected, and if it was the last I want the row before deleted row to be selected, how can I do it ?

I have found that there is a problem setting SelectedIndex to the next or previous deleted row, only if I first set the SelectedIndex to other row (not near to the deleted row) and than set SelectedIndex to the required row, it works, any idea why ?

BTW - The same problem appear on screen too, when trying to select the row with the mouse, I first need to select other row and than select the row that is now in the place of the deleted row.

Am I doing something wrong ?

Thanks

[Ashok N]

Hi Yossef, 

 

Thanks for contacting Syncfusion support. 

 

You can achieve your requirement with help of SfDataGrid.SelectedIndex property and dataGrid.SelectionController.RefreshSelection method. Please refer the below code example, 

 

private void Select_Clicked(object sender, EventArgs e) 

{ 

    int selectedindex = dataGrid.SelectedIndex; 

    if(selectedindex == viewModel.OrdersInfo.Count) 

    { 

        viewModel.OrdersInfo.RemoveAt(viewModel.OrdersInfo.Count - 1); 

        dataGrid.SelectionController.RefreshSelection(); 

        dataGrid.SelectedIndex = selectedindex - 1; 

    } 

    else 

    { 

        viewModel.OrdersInfo.RemoveAt(selectedindex - 1); 

        dataGrid.SelectionController.RefreshSelection(); 

        dataGrid.SelectedIndex = selectedindex ; 

    } 

} 

 

Sample location: http://www.syncfusion.com/downloads/support/forum/132377/ze/XamarinForms1498446211  

 

Regards, 

Ashok