WebSecurity UserExists method
WebSecurity objects definition
UserExists () method indicates whether the user already exists in WebSecurity database.
C # and VB syntax
WebSecurity.UserExists( userName )
parameter
| 参数 | 类型 | 描述 |
|---|---|---|
| userName | String | 用户名 |
return value
| 类型 | 描述 |
|---|---|
| Boolean | 如果用户已存在，则返回 true ，否则返回 false 。 |
Errors and exceptions
In the following scenario, any access to WebSecurity object will throw an InvalidOperationException:
- InitializeDatabaseConnection () method has not been called
- SimpleMembership not initialized (or disabled in the site configuration)
Remark
UserExists () method only to verify whether the user is present in the user data table.
It does not verify that the user account already exists member, or if the user has to confirm, or whether the user has logged in.
Technical data
| 名称 | 值 |
|---|---|
| Namespace | WebMatrix.WebData |
| Assembly | WebMatrix.WebData.dll |
WebSecurity objects