linq查询DataTable如何取值呢
var Reslute = from TableUser in sc.getDataTable(strSql).AsEnumerable()
where TableUser["UserName"].ToString() == txtUserName.Text && TableUser["Password"].ToString() == txtPassword.Text
select TableUser;
我想直接取Reslute 里面的用户名及密码还有权限也就是这个表里面的查询的字段的所有值,要怎么取呢?
[解决办法]
var Reslute = (from TableUser in sc.getDataTable(strSql).AsEnumerable()
where TableUser.Field<string>("UserName") == txtUserName.Text && TableUser.Field<string>("Password") == txtPassword.Text
select TableUser).SingleOrDefault();
if(Reslute !=null)
{
string userName=Reslute.Field<string>("UserName");
//其他的就这么写就OK了
}
[解决办法]
var UserName = Result.select(a => a.username)
[解决办法]
正解。Reslute.Field<string>("UserName");
[解决办法]
var Reslute = from TableUser in sc.getDataTable(strSql).AsEnumerable() where TableUser["UserName"].ToString() == txtUserName.Text && TableUser["Password"].ToString() == txtPassword.Text select new
{
userName = TableUser["UserName"].ToString(),
password = TableUser["Password"].ToString(),
permission = TableUser["Permission"].ToString()
}