我可以得到像这样的所有用户
var users = UserManager.Users.ToList();
我可以找到像这样的角色
var role = db.Roles.SingleOrDefault(m => m.Name == "User");
我想列出所有具有角色名称的用户"用户"在AspNetRoles表中(我有User
和Admin
)。
var role = db.Roles.SingleOrDefault(m => m.Name == "User");
var usersInRole = db.Users.Where(m => m.Roles.Any(r => r.RoleId == role.Id)).ToList();
return View(usersInRole);
我在var role
中获得了该角色,但在我调试时userInRole
给了我Count = 0
。没有编译错误。
答案 0 :(得分:3)
您可以使用下面的代码来检索具有特定角色(Identity 2.x.x)的所有用户:
<?php
$con = mysqli_connect("localhost","root","") or die (mysql_error());
mysqli_select_db($con, 'studentform');
if(isset($_POST['submit']))
{
$file = $_FILES['file']['tmp_name'];
$handle = fopen($file,"r");
while(($fileop = fgetcsv($handle,1000,",")) !==false)
{
$gender = $fileop[0];
$track = $fileop[1];
$last = $fileop[2];
$first = $fileop[3];
$sql= mysqli_query("INSERT INTO student (gender,track,last,first) VALUES ('$gender','$track','$last','$first')");
}
if($sql)
{
echo "data uploaded successfully";
}
else{
echo "error";
}
}
?>
或同步用法:
var users = await _userManager.GetUsersInRoleAsync("RoleName");
答案 1 :(得分:2)
var usersInRole = db.Users.Where(m => m.Roles.RoleId == role.Id)).ToList();
您搜索所有用户并返回符合特定角色ID的用户
答案 2 :(得分:0)
您是否尝试过使用导航属性Lazy Loading?
var role = db.Roles.SingleOrDefault(m => m.Name == "User");
var usersInRole = role.Users;
答案 3 :(得分:0)
您可以使用Linq表达式基本查询,如下所示:
public class AppData {
static SharedPreferences prefdata;
static SharedPreferences.Editor editordata;
static final String FCOLOR_KEY = "#FFFFFF"; //first color
static final String SCOLOR_KEY = "#FFFFFF"; //second color
static final String TCOLOR_KEY = "#FFFFFF"; //text color
static final String ICOLOR_KEY = "#FFFFFF"; //icon color
static final Image BIMG_KEY = null; //bakcground image
}