I am using CREATEUSERWIZARD which allows duplicate email addresses in membership.  However, for my purposes, I want to reject a duplicate email adress that already exists in the membership.

I have seen this thread: http://forums.asp.net/p/1117970/1738068.aspx#1738068

However the answer refers to a Web.Config section: <membership>
<providers> that is not contained in my file.  Perhaps something has changed since this thread was answered, or perhaps I am missing something simple, as this seems like obvious functionality.

In other respects, CREATEUSER WIZARD behaves correctly.

Hi

try this in your web.config file just change connectionstring name with your's

set requiresUniqueEmail="true"

<membership defaultProvider="MyProvider" userIsOnlineTimeWindow="25">
   <providers>
    <add name="MyProvider" type="System.Web.Security.SqlMembershipProvider, System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" connectionStringName="eLocalize_ConnStr" applicationName="/" enablePasswordRetrieval="true" enablePasswordReset="true" requiresQuestionAndAnswer="false" requiresUniqueEmail="true" passwordFormat="Clear" maxInvalidPasswordAttempts="5" minRequiredPasswordLength="5" minRequiredNonalphanumericCharacters="0" passwordAttemptWindow="10" passwordStrengthRegularExpression=""/>
   </providers>
  </membership>
  <roleManager cacheRolesInCookie="true" cookieName="TaskCookie" cookiePath="/" cookieProtection="None" cookieRequireSSL="true" cookieSlidingExpiration="false " cookieTimeout="60"
               defaultProvider="TaskRoleProvider" enabled="true">
   <providers>
    <add name="TaskRoleProvider" connectionStringName="eLocalize_ConnStr" applicationName="/" type="System.Web.Security.SqlRoleProvider"/>
   </providers>
  </roleManager>
  <!--SiteMap Provider-->
  <siteMap defaultProvider="XmlSiteMapProvider" enabled="true">
   <providers>
    <add name="XmlSiteMapProvider" description="Default SiteMap provider." type="System.Web.XmlSiteMapProvider" siteMapFile="web.sitemap" securityTrimmingEnabled="true"/>
   </providers>
  </siteMap>

Hope this helps

Good Luck

 Hi,

You don't have to change the membersdhip settings.By default ,Membership provider doesn't allow duplicate emails.This is because "RequiresUniqueEmail" property is true by default.

Are you using the SqlMembershipProvider ???

I added these sections to my web.config, editting teh connection string.  I get the following errors when attempting to use the membership provider:

Configuration Error

Line 111:		</assemblyBinding>
Line 112:	</runtime>
Line 113:  <membership defaultProvider="MyProvider" userIsOnlineTimeWindow="25">
Line 114:    <providers>
Line 115:      <add name="MyProvider" type="System.Web.Security.SqlMembershipProvider, System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" connectionStringName="ConnectionString2" applicationName="/" enablePasswordRetrieval="true" enablePasswordReset="true" requiresQuestionAndAnswer="false" requiresUniqueEmail="true" passwordFormat="Clear" maxInvalidPasswordAttempts="5" minRequiredPasswordLength="5" minRequiredNonalphanumericCharacters="0" passwordAttemptWindow="10" passwordStrengthRegularExpression=""/>

Any direction appreciated...

anas:

 Hi,

You don't have to change the membersdhip settings.By default ,Membership provider doesn't allow duplicate emails.This is because "RequiresUniqueEmail" property is true by default.

Are you using the SqlMembershipProvider ???

I am using AspNetSqlProvider, the default value generated by Visual WebDeveloper 2008 Express Edition.

I do need to make some change as the membership provider is allowing duplicate email addresses.  I have duplicate email addresses in my membership.  I use the administration tool to delete these accounts and then contact the users manually via email.

Hi

did you try my post ?

yasserzaid:

Hi

did you try my post ?

Yes, please see the error message in my post above when I add these sections you suggested to my web.config.  Perhaps I have added them incorrectly?

At present, I have a work-around, but I would still like to understand this better and do it in the correct way.

 I have altered the Stored Procedure: aspnet_Membership_CreateUser adding the line:

SET @UniqueEmail = 1

This hits against a check for the new value against any of the exting values and propery bubbles up to the GUI.  I could not find where this SP is called.  If anyone knows how to control this properly I look forward to an answer.

Hi

try my post and tell me if your problem still or not

Good Luck

yasserzaid:

Hi

try my post and tell me if your problem still or not

Good Luck

I still have a problem.  When I add the sections you have specified to the web.config, I get the error as described previously when attempting any page that uses the membership provider.

Attempting to simply things I added part of the section to my web.config:

<membership defaultProvider="MyProvider" userIsOnlineTimeWindow="25">

<add name="MyProvider" type="System.Web.Security.SqlMembershipProvider, System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" connectionStringName="ConnectionString2" applicationName="/" enablePasswordRetrieval="true" enablePasswordReset="true" requiresQuestionAndAnswer="false" requiresUniqueEmail="true" passwordFormat="Clear" maxInvalidPasswordAttempts="5" minRequiredPasswordLength="5" minRequiredNonalphanumericCharacters="0" passwordAttemptWindow="10" passwordStrengthRegularExpression=""/>

</membership>

I get the following errors:

Message 2 Could not find schema information for the element 'membership'. C:\Documents\Visual Studio 2008\Projects\FieldBaron\FieldBaron\Web.config 113 4 FieldBaron
Message 3 Could not find schema information for the attribute 'defaultProvider'. C:\Documents\Visual Studio 2008\Projects\FieldBaron\FieldBaron\Web.config 113 15 FieldBaron

And so on... 

 Two things :

1. The <membership> section should be placed inside the <system.web> section and not directly inside <configuration> section as you did.
2. If there is xml name space in for the <configuration> section , remove it <configuration xmlns="http://schemas.microsoft.com/.NetConfiguration/v2.0">
   

anas:

 Two things :

1. The <membership> section should be placed inside the <system.web> section and not directly inside <configuration> section as you did.
2. If there is xml name space in for the <configuration> section , remove it <configuration xmlns="http://schemas.microsoft.com/.NetConfiguration/v2.0">
   

That was it.  Thank you for your patience

you can also see/set  the properties in iis > asp.net tab > edit configuration > Authentication