public static DataSet selectDB(string name, out string msg)
{
using (SqlConnection cn = new SqlConnection(cnstr))
{
if (name != "")
{
SqlDataAdapter da = new SqlDataAdapter("select * from sssss where sss='" + name + "'", cn);
DataSet ds = new DataSet();
da.Fill(ds);
msg = "";
return ds;
}
else
{
msg = "请输入条件";
return null;
}
}
}请问这段代码如果name="";时
return的是NULL还是return dataset=null;最近问题问的多了,分有点少了
{
using (SqlConnection cn = new SqlConnection(cnstr))
{
if (name != "")
{
SqlDataAdapter da = new SqlDataAdapter("select * from sssss where sss='" + name + "'", cn);
DataSet ds = new DataSet();
da.Fill(ds);
msg = "";
return ds;
}
else
{
msg = "请输入条件";
return null;
}
}
}请问这段代码如果name="";时
return的是NULL还是return dataset=null;最近问题问的多了,分有点少了
{
DataSet ds = null;
using (SqlConnection cn = new SqlConnection(cnstr))
{
if (name != "")
{
SqlDataAdapter da = new SqlDataAdapter("select * from sssss where sss='" + name + "'", cn);
ds = new DataSet();
da.Fill(ds);
msg = "";
}
else
{
msg = "请输入条件";
}
}
return ds;
}