那里出错了,帮忙看看!!
public void listBind()
{
string strcmd = "select distinct Name from Member_ZD";
conn = new SqlConnection(strConn);
SqlCommand cmd=new SqlCommand(strcmd,conn);
conn.Open();
SqlDataReader dr = cmd.ExecuteReader();
ArrayList a = new ArrayList();
while(dr.Read())
a.Add(dr["Name"].ToString());
dr.Close();
string[] s = new string[a.Count];
a.CopyTo(s);
conn.Close();
for(int j=0;j<a.Count;j++)
{
if(j<a.Count-1)
{
list+="select 项目编号 as 项目编号,项目名称 as 项目名称 from "+s[j].ToString()+" where 首页显示=2"+" "+"union"+" ";
}
else
{
list+="select 项目编号 as 项目编号,项目名称 as 项目名称 from "+s[j].ToString()+" where 首页显示=2";
}
}
string zhengque="select 项目编号 as 项目编号,项目名称 as 项目名称 from jiaoyi_jishu where 首页显示=2 union select 项目编号 as 项目编号,项目名称 as 项目名称 from jiaoyi_qiye where 首页显示=2";
// //list的最后结果为\\
select 项目编号 as 项目编号,项目名称 as 项目名称 from jiaoyi_jishu where 首页显示=2 union select 项目编号 as 项目编号,项目名称 as 项目名称 from jiaoyi_qiye where 首页显示=2
// \\list的最后结果为//
问题:我用string test=list;报错,而我用"string zhengque="select 项目编号 as 项目编号,项目名称 as 项目名称 from jiaoyi_jishu where 首页显示=2 union select 项目编号 as 项目编号,项目名称 as 项目名称 from jiaoyi_qiye where 首页显示=2";"正确
//string strcmdt=list;
conn.Open();
SqlDataAdapter da = new SqlDataAdapter(strcmdt,conn);
DataSet ds=new DataSet();
da.Fill(ds,"UserReg");
conn.Close();
DataList1.DataSource=ds.Tables["UserReg"].DefaultView;
DataList1.DataBind();