Membership.CreateUser Method (String, String, String)
Assembly: System.Web (in system.web.dll)
'Declaration Public Shared Function CreateUser ( _ username As String, _ password As String, _ email As String _ ) As MembershipUser 'Usage Dim username As String Dim password As String Dim email As String Dim returnValue As MembershipUser returnValue = Membership.CreateUser(username, password, email)
public static MembershipUser CreateUser ( String username, String password, String email )
public static function CreateUser ( username : String, password : String, email : String ) : MembershipUser
Not applicable.
Parameters
- username
The user name for the new user.
- password
The password for the new user.
The e-mail address for the new user.
Return Value
A MembershipUser object for the newly created user.| Exception type | Condition |
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The user was not created. Check the StatusCode property for a MembershipCreateStatus value. |
CreateUser adds a new user to the data store and returns a MembershipUser object for the newly created user. If the user creation fails, a MembershipCreateUserException is thrown. You can retrieve a MembershipCreateStatus value from the StatusCode property of the MembershipCreateUserException that indicates why user creation failed.
Once a membership user has been created and you have a reference to a MembershipUser object for that user, you can modify the settings for that user with the MembershipUser public methods, such as ChangePasswordQuestionAndAnswer for applications where RequiresQuestionAndAnswer is true, or by setting the property values of the MembershipUser object and passing them to the UpdateUser method.
If a user already exists in the data source for the application, you can obtain a MembershipUser object for the existing user with the GetUser method.
Leading and trailing spaces are trimmed from all parameter values.
The following code example creates a new user for an ASP.NET application configured to use forms authentication and ASP.NET membership. If the user is not created successfully, a message is displayed to the user. Otherwise, the user is redirected to the login page for the application.
Security Note: |
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This example contains a text box that accepts user input, which is a potential security threat. By default, ASP.NET Web pages validate that user input does not include script or HTML elements. For more information, see Script Exploits Overview (Visual Studio). |
<%@ Page Language="VB" %> <%@ Import Namespace="System.Web.Security" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <script runat="server"> Public Sub CreateUser_OnClick(sender As Object, args As EventArgs) Dim result As MembershipCreateStatus Try ' Create new user. Dim newUser As MembershipUser If Membership.RequiresQuestionAndAnswer Then newUser = Membership.CreateUser( _ UsernameTextbox.Text, _ PasswordTextbox.Text, _ EmailTextbox.Text, _ PasswordQuestionTextbox.Text, _ PasswordAnswerTextbox.Text, _ false, _ result) Else newUser = Membership.CreateUser( _ UsernameTextbox.Text, _ PasswordTextbox.Text, _ EmailTextbox.Text) End If Response.Redirect("login.aspx") Catch e As MembershipCreateUserException Msg.Text = GetErrorMessage(e.StatusCode) Catch e As HttpException Msg.Text = e.Message End Try End Sub Public Function GetErrorMessage(status As MembershipCreateStatus) As String Select Case status Case MembershipCreateStatus.DuplicateUserName Return "Username already exists. Please enter a different user name." Case MembershipCreateStatus.DuplicateEmail Return "A username for that e-mail address already exists. Please enter a different e-mail address." Case MembershipCreateStatus.InvalidPassword Return "The password provided is invalid. Please enter a valid password value." Case MembershipCreateStatus.InvalidEmail Return "The e-mail address provided is invalid. Please check the value and try again." Case MembershipCreateStatus.InvalidAnswer Return "The password retrieval answer provided is invalid. Please check the value and try again." Case MembershipCreateStatus.InvalidQuestion Return "The password retrieval question provided is invalid. Please check the value and try again." Case MembershipCreateStatus.InvalidUserName Return "The user name provided is invalid. Please check the value and try again." Case MembershipCreateStatus.ProviderError Return "The authentication provider Returned an error. Please verify your entry and try again. If the problem persists, please contact your system administrator." Case MembershipCreateStatus.UserRejected Return "The user creation request has been canceled. Please verify your entry and try again. If the problem persists, please contact your system administrator." Case Else Return "An unknown error occurred. Please verify your entry and try again. If the problem persists, please contact your system administrator." End Select End Function </script> <html xmlns="http://www.w3.org/1999/xhtml" > <head> <title>Create User</title> </head> <body> <form id="form1" runat="server"> <h3>Create New User</h3> <asp:Label id="Msg" ForeColor="maroon" runat="server" /><br /> <table cellpadding="3" border="0"> <tr> <td>Username:</td> <td><asp:Textbox id="UsernameTextbox" runat="server" /></td> <td><asp:RequiredFieldValidator id="UsernameRequiredValidator" runat="server" ControlToValidate="UserNameTextbox" ForeColor="red" Display="Static" ErrorMessage="Required" /></td> </tr> <tr> <td>Password:</td> <td><asp:Textbox id="PasswordTextbox" runat="server" TextMode="Password" /></td> <td><asp:RequiredFieldValidator id="PasswordRequiredValidator" runat="server" ControlToValidate="PasswordTextbox" ForeColor="red" Display="Static" ErrorMessage="Required" /></td> </tr> <tr> <td>Confirm Password:</td> <td><asp:Textbox id="PasswordConfirmTextbox" runat="server" TextMode="Password" /></td> <td><asp:RequiredFieldValidator id="PasswordConfirmRequiredValidator" runat="server" ControlToValidate="PasswordConfirmTextbox" ForeColor="red" Display="Static" ErrorMessage="Required" /> <asp:CompareValidator id="PasswordConfirmCompareValidator" runat="server" ControlToValidate="PasswordConfirmTextbox" ForeColor="red" Display="Static" ControlToCompare="PasswordTextBox" ErrorMessage="Confirm password must match password." /> </td> </tr> <tr> <td>Email Address:</td> <td><asp:Textbox id="EmailTextbox" runat="server" /></td> <td><asp:RequiredFieldValidator id="EmailRequiredValidator" runat="server" ControlToValidate="EmailTextbox" ForeColor="red" Display="Static" ErrorMessage="Required" /></td> </tr> <% If Membership.RequiresQuestionAndAnswer Then %> <tr> <td>Password Question:</td> <td><asp:Textbox id="PasswordQuestionTextbox" runat="server" /></td> <td><asp:RequiredFieldValidator id="PasswordQuestionRequiredValidator" runat="server" ControlToValidate="PasswordQuestionTextbox" ForeColor="red" Display="Static" ErrorMessage="Required" /></td> </tr> <tr> <td>Password Answer:</td> <td><asp:Textbox id="PasswordAnswerTextbox" runat="server" /></td> <td><asp:RequiredFieldValidator id="PasswordAnswerRequiredValidator" runat="server" ControlToValidate="PasswordAnswerTextbox" ForeColor="red" Display="Static" ErrorMessage="Required" /></td> </tr> <% End If %> <tr> <td></td> <td><asp:Button id="CreateUserButton" Text="Create User" OnClick="CreateUser_OnClick" runat="server" /></td> </tr> </table> </form> </body> </html>
Security Note: