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C#
CS1061: 'System.Security.Principal.IIdentity' does not contain a definition for 'GetUserName' and no extension method 'GetUserName' accepting a first argument of type 'System.Security.Principal.IIdentity' could be found (are you missing a using directive or an assembly reference?)


What I have tried:

getting this error in Site.master designer file..

  • <a runat="server" href="~/Account/Manage" title="Manage your account">Hello, <%: Context.User.Identity.GetUserName() %> !



GetUserName() havig error
Microsoft.AspNet.Identity alredy added

thank you!
Posted
Updated 10-May-19 6:13am
Comments
Karthik_Mahalingam 9-Aug-16 6:35am    
try
HttpContext.Current.User.Identity.Name
[no name] 9-Aug-16 6:41am    
its not working :(
Karthik_Mahalingam 9-Aug-16 6:45am    
enable windows authentication.
[no name] 9-Aug-16 6:49am    
yes the error went off. now getting this one- System.InvalidOperationException: 'respond' is not a valid script name. The name must end in '.js'. which is in


<asp:ScriptReference Name="MsAjaxBundle" />
<asp:ScriptReference Name="jquery" />
<asp:ScriptReference Name="bootstrap" />
<asp:ScriptReference Name="respond" />
<asp:ScriptReference Name="WebForms.js" Assembly="System.Web" Path="~/Scripts/WebForms/WebForms.js" />
<asp:ScriptReference Name="WebUIValidation.js" Assembly="System.Web" Path="~/Scripts/WebForms/WebUIValidation.js"
Karthik_Mahalingam 9-Aug-16 6:53am    
off topic,
might be the related js file is not referenced.

Posting as Solution From RyanDev Comments

use HttpContext.Current.User.Identity.Name to get the UserName and Enable the Windows Authentication [^]
 
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not sure whether you already figure this out, but to use 'GetUserName' method, you may need to include namespace of "Microsoft.AspNet.Identity" on your front-end page.

VB.NET:
<%@ Import Namespace="Microsoft.AspNet.Identity" %>
 
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