Membership.IsApproved无法设置为true [英] Membership.IsApproved cannot set to true

问题描述

我在网页中使用了两个会员提供商，错误说

对象引用没有设置为对象的实例。

来设置IsApproved =真正。

我发现问题是provider =MySQLMembershipProvider，它应该是MySQLMembershipProvider2。但即使我已将其设置为MySQLMembershipProvider2，但它仍然没有任何效果。请给我一些建议。



以下是我使用的代码：

  protected   void  CreateUserWizard1_CreatedUser（ object  sender，EventArgs e）
 {
 
 CreateUserWizard1.MembershipProvider =   MySQLMembershipProvider2; 
 ProfileCommon pc =  new  ProfileCommon（）; 
 pc.Initialize（CreateUserWizard1.UserName.ToString（）， true ）; 
 pc.Year = ddlYear.SelectedItem.Text; 
 pc.Area = ddlArea.SelectedItem.Value; 
 pc.Class = ddlClass.SelectedItem.Value; 
 pc.Language = ddlLanguage.SelectedItem.Value; 
 pc.Section = ddlSection.SelectedItem.Value; 
 pc.ClassName = ddlTemplate.SelectedItem.Value; 
 pc.Save（）; 
 RoleProvider Role = Roles.Providers [  MySQLRoleProvider2]; 
 Role.AddUsersToRoles（ new  [] {CreateUserWizard1.UserName}， new  [] {< span class =code-string>  ClassAssistant}）; 
 MembershipProvider member = Membership.Providers [  MySQLMembershipProvider2]; 
  String  usern = CreateUserWizard1.UserName; 
 MembershipUser usr = member.GetUser（  usern，假）; 
 usr.IsApproved =  true ; 
 Membership.UpdateUser（usr）; 
} 

解决方案

  String  usern = CreateUserWizard1.UserName; 
 MembershipUser usr = member.GetUser（  usern， false ）; 

该行正在寻找硬编码用户名usern，我在认为你的意思是使用上面的行，没有引号（）



制作：

 字符串 usern = CreateUserWizard1.UserName; 
 MembershipUser usr = member.GetUser（usern， false ）; 

我会在处理它之前在usr周围添加一张支票，类似于< br $>

 MembershipUser usr = member.GetUser（usern， false ）; 
  if （usr！=  null ）
 {
  //  然后批准 
 usr.IsApprov ed =  true ; 
 Membership.UpdateUser（usr）; 
} 
 其他 
 { //  无法获取用户，记录或显示错误 
} 

-DB

I use two membership provider in a webpage, an error said
"Object reference not set to an instance of an object."
when come to setting IsApproved=true.
I find out the problem is the provider="MySQLMembershipProvider", it should be "MySQLMembershipProvider2". But even I already set it to "MySQLMembershipProvider2", but it still don't have any effect. Please give me some advise.

Here is the code behind I use:

protected void CreateUserWizard1_CreatedUser(object sender, EventArgs e)
{
 
    CreateUserWizard1.MembershipProvider = "MySQLMembershipProvider2";
    ProfileCommon pc = new ProfileCommon();
    pc.Initialize(CreateUserWizard1.UserName.ToString(), true);
    pc.Year = ddlYear.SelectedItem.Text;
    pc.Area = ddlArea.SelectedItem.Value;
    pc.Class = ddlClass.SelectedItem.Value;
    pc.Language = ddlLanguage.SelectedItem.Value;
    pc.Section = ddlSection.SelectedItem.Value;
    pc.ClassName = ddlTemplate.SelectedItem.Value;
    pc.Save();
    RoleProvider Role = Roles.Providers["MySQLRoleProvider2"];
    Role.AddUsersToRoles(new[] { CreateUserWizard1.UserName }, new[] { "ClassAssistant" });
    MembershipProvider member= Membership.Providers["MySQLMembershipProvider2"] ;
    String usern = CreateUserWizard1.UserName;
    MembershipUser usr = member.GetUser("usern",false);
    usr.IsApproved = true;
    Membership.UpdateUser(usr);
}

解决方案

String usern = CreateUserWizard1.UserName;
MembershipUser usr = member.GetUser("usern",false);

The line is looking for a "hard coded" user name "usern" which I think you meant for it to use the line above, without the quotes (")

Making it:

String usern = CreateUserWizard1.UserName;
MembershipUser usr = member.GetUser(usern,false);

I would personally add a check around usr before dealing with it, something like

MembershipUser usr = member.GetUser(usern,false);
if(usr != null) 
{ 
// then approve 
usr.IsApproved = true;
Membership.UpdateUser(usr);
}
else
{ // cannot get the user, log or show an error
}

-DB

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