=> 这个符号在vs能用吗？

vs2008

public short NewGroupLevel => this.m_newGroupLevel;

public string NewGroupName => this.m_newGroupName;

public string NewGroupPath => SharedUtils.ConvertIntArrayToString(this.m_newGroupPath);

public string NewGroupNamePath => this.m_newGroupNamePath;

public short CurrentGroupLevel => this.m_curGroupLevel;

public string CurrentGroupName => this.m_curGroupName;

public string CurrentGroupPath => SharedUtils.ConvertIntArrayToString(this.m_curGroupPath);

public string CurrentGroupNamePath => this.m_curGroupNamePath;

public bool IsDrillDown() => (int) this.NewGroupLevel >= (int) this.CurrentGroupLevel;

错误 2 应为 { 或 ;

要怎么改，vs2008不接受这个格式

C# 6.0 语法糖：只读自动属性，vs2015以上支持（语言框架版本应该是4.52以上）
如果你是vs2008，你知道他是只读属性，那么可以手动修改成下面这种传统只读属性的形式

xxxx  {get { return 1;}}

用2017