How to get username without domain

Question

In an aspx page I get the Windows username with the function Request.LogonUserIdentity.Name. This function returns a string in the format \"domain\\user\".

Answer 1

Getting parts[1] is not a safe approach. I would prefer use LINQ .Last():

WindowsIdentity windowsIdentity = WindowsIdentity.GetCurrent();
if (windowsIdentity == null)
    throw new InvalidOperationException("WindowsIdentity is null");
string nameWithoutDomain = windowsIdentity.Name.Split('\\').Last();