public void CheckBoxChanged()
{
if (ChildRecords.Where(p => p.IsImageVisible == false && p.IsCheckboxVisible == false).Count() > 0)
{
Console.Write("");
}
else
{
var count = ChildRecords.Where(p => p.isChecked).Count();
_selectAll = count == ChildRecords.Count();
OnPropertyChanged(nameof(SelectAll));
}
}