Question

我在 AspNetUsers 表中添加了 DepartmentId 列作为外键，并且在另一个名为的表中，我具有与ForeignKey相同的 DepartmentId > MaterialRequest ，我希望登录用户的部门名称显示在“部门名称”视图中

我的课程

部门

部门编号部门名称

MaterialRequest

MaterialRequestId 材料名称 DepartmentId

我尝试过的

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Answer 1

有一种解决方法，您可以创建索赔并采用以下方式：

public class ApplicationUser : IdentityUser
{
    public async Task<ClaimsIdentity> GenerateUserIdentityAsync(UserManager<ApplicationUser> manager)
    {
        // Note the authenticationType must match the one defined in CookieAuthenticationOptions.AuthenticationType
        var userIdentity = await manager.CreateIdentityAsync(this, DefaultAuthenticationTypes.ApplicationCookie);
        // Add custom user claims here
    // Add custom user claims here => this.DepartmentId is a value stored in database against the user
    userIdentity.AddClaim(new Claim("DepartmentId", this.DepartmentId.ToString()));

        return userIdentity;
    }

    // Your Extended Properties
    public int? DepartmentId { get; set; }
}

然后创建一个扩展方法来获取您的departmentId：

namespace App.Extensions
{
    public static class IdentityExtensions
    {
        public static string GetDepartmentId(this IIdentity identity)
        {
            var claim = ((ClaimsIdentity)identity).FindFirst("DepartmentId");
            // Test for null to avoid issues during local testing
            return (claim != null) ? claim.Value : string.Empty;
        }
    }
}

现在您可以轻松地调用此方法来获取DepartmentId：

var departmentId= User.Identity.GetDepartmentId();

如何从MVC 5中连接到AspNetUsers表的数据库表中获取数据

1 个答案: