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?
{
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?
{
if (id == sdr["RID"].ToString())
{
return true;
}
}
return false;
{
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; //<<<<<<<<<
}
{
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;
}
试一下
{
return (id == sdr["RID"].ToString());
}
{
bool result = false;
string id = DetailsView1.DataKey.Value.ToString();
SqlDataReader sdr = null;
user getUser = new user();
sdr = getUser.SelectRIDFromBorrow();
while (sdr.Read())
{
if (id == sdr["RID"].ToString())
{
result = true;
}
else
{
result = false;
}
}
sdr.Close();
return result;
}
{
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 }
zswang(伴水清清)(专家门诊清洁工) 正解
经过本人的一一测试
其中hdt(倦怠) 、zswang(伴水清清)(专家门诊清洁工)、netusemaster() 是正确的。非常感谢大家,虽然这是一个小问题吧。
必须得把while里的那个else也去掉。wei123456(onedotone)写的经过我测试,返回的好像永远都是false啊