帮我看一下这个返回bool值的语句怎么改才好
public bool ReturnRID()
{
string id = DetailsView1.DataKey.Value.ToString();
SqlDataReader sdr = null;
user getUser = new user();
sdr = getUser.SelectRIDFromBorrow();
while (sdr.Read())
{
if (id == sdr[ "RID "].ToString())
{
return true;
}
else
{
return false;
}
}
}
提示“并非所有的代码路径都有返回值”，我该怎么改呢？

[解决办法]
while (sdr.Read())
{
if (id == sdr[ "RID "].ToString())
{
return true;
}
}
return false;
[解决办法]
public bool ReturnRID()
{
string id = DetailsView1.DataKey.Value.ToString();
SqlDataReader sdr = null;
user getUser = new user();
sdr = getUser.SelectRIDFromBorrow();
while (sdr.Read())
{
if (id == sdr[ "RID "].ToString())
{
return true;
}
}
return false; // < < < < < < < < <
}

[解决办法]
public bool ReturnRID()
{
string id = DetailsView1.DataKey.Value.ToString();
SqlDataReader sdr = null;
user getUser = new user();
sdr = getUser.SelectRIDFromBorrow();
while (sdr.Read())
{
if (id == sdr[ "RID "].ToString())
{
return true;
}
//else
//{
//return false;
//}


}
return false; //换到这个地方，暴露出来

}

[解决办法]
。。。
zswang(伴水清清)(专家门诊清洁工)

正解