Set the single datagridcell enable or disable according to another property in the selected row

This will set the activity of  single cell in datagrid,instead of the  whole column  with same header.

It toggle  the validity of the single cell in seperated one row.

<DataGridTextColumn Binding="{Binding Path=Comment}" Header="Comment">
                    <DataGridTextColumn.CellStyle>
                        <Style TargetType="{x:Type DataGridCell}">
                            <Style.Triggers>
                                <DataTrigger Binding="{Binding IsActive}" Value="True">
                                    <Setter Property="IsEnabled" Value="False"/>
                                </DataTrigger>
                            </Style.Triggers>
                        </Style>
                    </DataGridTextColumn.CellStyle> 
                </DataGridTextColumn>

private bool isActive = true;
        public bool IsActive
        {
            get
            {
                return isActive;
            }
            set
            {
                if(value!=isActive)
                {
                    isActive = value;
                    OnPropertyChanged("IsActive");
                }
            }
        }

<DataGridTemplateColumn Header="Edit" Width="Auto"> <DataGridTemplateColumn.CellTemplate> <DataTemplate> <Button Content="UnLock/Lock" Command="{Binding Path=DataContext.EditCmd, RelativeSource= {RelativeSource FindAncestor,AncestorType={x:Type DataGrid}}}"/> </DataTemplate> </DataGridTemplateColumn.CellTemplate> </DataGridTemplateColumn>

private ICommand editCmd;
        public ICommand EditCmd
        {
            get
            {
                if(editCmd==null)
                {
                    editCmd = new DelegateCommand(EditCmdExecuted, EditCmdCanExecute);
                }
                return editCmd;
            }
        }

private void EditCmdExecuted(object obj)
        {
            SelectedOrder.IsActive = !selectedOrder.IsActive;
        }

<DataGridTemplateColumn Header="Edit" Width="Auto">
                    <DataGridTemplateColumn.CellTemplate>
                        <DataTemplate>
                            <Button  Content="UnLock/Lock" Command="{Binding Path=DataContext.EditCmd, RelativeSource= {RelativeSource FindAncestor,AncestorType={x:Type DataGrid}}}"/>
                        </DataTemplate>
                    </DataGridTemplateColumn.CellTemplate>
                </DataGridTemplateColumn>