I am not able to remove the border that is displayed when a cell is selected. I have attached a screenshot.
I have tried to set the SelectionBorderVisibility and CurrentCellBorderVisibility to Collapsed but doesn't change the behavior.
<syncfusion:SfDataGrid AddNewRowPosition="None"
AllowDeleting="False"
AllowDraggingColumns="False"
AllowDrop="False"
AllowEditing="False"
AllowFiltering="True"
AllowGrouping="False"
AllowResizingColumns="True"
AutoGenerateColumns="False"
AutoGenerateRelations="False"
Background="Black"
ColumnSizer="None"
DetailsViewExpanding="SfDataGridOnDetailsViewExpanding"
DetailsViewPadding="5"
EditTrigger="OnTap"
EditorSelectionBehavior="SelectAll"
GridValidationMode="InView"
ItemsSource="{Binding Path=CashPositions,
NotifyOnSourceUpdated=True,
Mode=OneWay}"
NavigationMode="Cell"
ScrollViewer.HorizontalScrollBarVisibility="Auto"
ScrollViewer.VerticalScrollBarVisibility="Auto">
<syncfusion:SfDataGrid.SortColumnDescriptions>
<syncfusion:SortColumnDescription ColumnName="PositionId" />
</syncfusion:SfDataGrid.SortColumnDescriptions>
<syncfusion:SfDataGrid.Columns>
<syncfusion:GridTextColumn HeaderText="Position Id" MappingName="PositionId" />
<syncfusion:GridTextColumn HeaderText="Position Quantity" MappingName="PositionQuantity" />
<syncfusion:GridNumericColumn AllowEditing="True"
HeaderText="Quantity to Aggregate"
IsHidden="{Binding RelativeSource={RelativeSource Mode=FindAncestor,
AncestorType={x:Type UserControl}},
Path=DataContext.IsReadOnly}"
MappingName="QuantityToAggregate" />
<syncfusion:GridCheckBoxColumn AllowEditing="True"
HeaderText="Select to Aggregate"
IsHidden="{Binding RelativeSource={RelativeSource Mode=FindAncestor,
AncestorType={x:Type UserControl}},
Path=DataContext.IsReadOnly}"
MappingName="SelectedToAggregate" />
</syncfusion:SfDataGrid.Columns>
<syncfusion:SfDataGrid.DetailsViewDefinition>
<!-- CashAccountAggregations -->
<syncfusion:GridViewDefinition RelationalColumn="CashAccountAggregations">
<syncfusion:GridViewDefinition.DataGrid>
<syncfusion:SfDataGrid AllowDeleting="False"
AllowDraggingColumns="False"
AllowDrop="False"
AllowEditing="False"
AllowFiltering="True"
AllowGrouping="False"
AllowResizingColumns="True"
AutoGenerateColumns="False"
AutoGenerateRelations="False"
NavigationMode="Cell">
<syncfusion:SfDataGrid.Columns>
<syncfusion:GridTextColumn HeaderText="Account Id" MappingName="AccountId" />
<syncfusion:GridTextColumn HeaderText="Existing Quantity" MappingName="ExistingQuantity" />
<syncfusion:GridTextColumn HeaderText="Booking Quantity" MappingName="BookingQuantity" />
</syncfusion:SfDataGrid.Columns>
</syncfusion:SfDataGrid>
</syncfusion:GridViewDefinition.DataGrid>
</syncfusion:GridViewDefinition>
</syncfusion:SfDataGrid.DetailsViewDefinition>
</syncfusion:SfDataGrid>