Question

我有GridView通过AspNetUsers绑定到SqlDataSource。我正在尝试实现GridView_RowCommand删除和编辑/更新用户，但我无法弄清楚如何通过ASP.NET Identity API来实现。我使用名为IdentityUser的类扩展了ApplicationUser，并将我的数据库上下文称为ApplicationDBContext。当我在GridView行上单击删除或编辑时，如何删除或更新给定所选用户的用户。

这是我到目前为止所做的，但基本上没什么：

    protected void Users_RowCommand(object sender, GridViewCommandEventArgs e)
    {
        if (e.CommandName == "Delete")
        {
          //How do I delete?

        }
        else if(e.CommandName == "Edit")
        {
            How do I Update?
        }
    }

Answer 1

这是我放在一起的一个例子，我没有Visual Studio所以它可能不是100％但是它足够接近你的目的我会说：

protected void Users_RowCommand(object sender, GridViewCommandEventArgs e)
{
    if (e.CommandName == "Delete")
    {
        int id = Convert.ToInt32(Users.DataKeys[e.RowIndex].Value);
        ApplicationUser user = (ApplicationUser)IdentityManager.Store.Users.FindAsync(id, CancellationToken.None);
        using (ApplicationDbContext dbcontext = new ApplicationDbContext())
        {
            dbcontext.UserLogins.RemoveRange(dbcontext.UserLogins.Where(ul => ul.UserId == user.Id));
            dbcontext.UserRoles.RemoveRange(dbcontext.UserRoles.Where(ur => ur.UserId == user.Id));
            dbcontext.UserSecrets.RemoveRange(dbcontext.UserSecrets.Where(us => us.UserName == user.UserName));
            dbcontext.UserManagement.RemoveRange(dbcontext.UserManagement.Where(um => um.UserId == user.Id));
            dbcontext.Users.Remove(dbcontext.Users.Where(usr => usr.Id == user.Id).Single());
            dbcontext.SaveChanges();
        }
    }
}

Answer 2

起初我尝试了触发的GridView的RowCommand，但后来我最终在SqlDataSource上指定了DeleteCommand和UpdateCommand，解决了这个问题。

当我配置SqlDataSource时，唯一的变化是产生了以下标记，这反过来使事情有效：

 <asp:SqlDataSource ID="UsersSqlDataSource" runat="server" ConnectionString="<%$ ConnectionStrings:DefaultConnection %>"
                    SelectCommand="SELECT [Id], [UserName], [FirstName], [LastName], [Email] FROM [AspNetUsers]"
                    DeleteCommand="DELETE FROM [AspNetUsers] WHERE [Id] = @Id"
                    InsertCommand="INSERT INTO [AspNetUsers] ([Id], [UserName], [FirstName], [LastName], [Email]) VALUES (@Id, @UserName, @FirstName, @LastName, @Email)"
                    UpdateCommand="UPDATE [AspNetUsers] SET [UserName] = @UserName, [FirstName] = @FirstName, [LastName] = @LastName, [Email] = @Email WHERE [Id] = @Id">
                    <DeleteParameters>
                        <asp:Parameter Name="Id" Type="String" />
                    </DeleteParameters>
                    <InsertParameters>
                        <asp:Parameter Name="Id" Type="String" />
                        <asp:Parameter Name="UserName" Type="String" />
                        <asp:Parameter Name="FirstName" Type="String" />
                        <asp:Parameter Name="LastName" Type="String" />
                        <asp:Parameter Name="Email" Type="String" />
                    </InsertParameters>
                    <UpdateParameters>
                        <asp:Parameter Name="UserName" Type="String" />
                        <asp:Parameter Name="FirstName" Type="String" />
                        <asp:Parameter Name="LastName" Type="String" />
                        <asp:Parameter Name="Email" Type="String" />
                        <asp:Parameter Name="Id" Type="String" />
                    </UpdateParameters>
                </asp:SqlDataSource>

使用GridView的RowCommand删除和编辑使用ASP.NET Identity的用户？

2 个答案: