<pattern> Element
| Attribut | Description | Optional |
|---|---|---|
| options | Sets the regex options for the attribute “expression”. | No |
| expression | Sets the regex expression for the pattern of the user name. | No |
| repositoryIdentity | Selects the part of the user name that is necessary for the login. | Yes |
<pattern expression="^\w+$" repositoryIdentity="{0}" options="IgnoreCase" />
