ClaimsIdentity.FindFirst Method
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Retrieves the first claim that matches a specified condition.
| FindFirst(Predicate<Claim>) |
Retrieves the first claim that is matched by the specified predicate. |
| FindFirst(String) |
Retrieves the first claim with the specified claim type. |
- Source:
- ClaimsIdentity.cs
- Source:
- ClaimsIdentity.cs
- Source:
- ClaimsIdentity.cs
Retrieves the first claim that is matched by the specified predicate.
public:
virtual System::Security::Claims::Claim ^ FindFirst(Predicate<System::Security::Claims::Claim ^> ^ match);public virtual System.Security.Claims.Claim FindFirst(Predicate<System.Security.Claims.Claim> match);public virtual System.Security.Claims.Claim? FindFirst(Predicate<System.Security.Claims.Claim> match);abstract member FindFirst : Predicate<System.Security.Claims.Claim> -> System.Security.Claims.Claim
override this.FindFirst : Predicate<System.Security.Claims.Claim> -> System.Security.Claims.ClaimPublic Overridable Function FindFirst (match As Predicate(Of Claim)) As ClaimParameters
Returns
The first matching claim or null if no match is found.
Exceptions
match is null.
Applies to
.NET 9 and other versions
| Product | Versions |
|---|---|
| .NET | Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9 |
| .NET Framework | 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
| .NET Standard | 2.0, 2.1 |
| UWP | 10.0 |
- Source:
- ClaimsIdentity.cs
- Source:
- ClaimsIdentity.cs
- Source:
- ClaimsIdentity.cs
Retrieves the first claim with the specified claim type.
public:
virtual System::Security::Claims::Claim ^ FindFirst(System::String ^ type);public virtual System.Security.Claims.Claim FindFirst(string type);public virtual System.Security.Claims.Claim? FindFirst(string type);abstract member FindFirst : string -> System.Security.Claims.Claim
override this.FindFirst : string -> System.Security.Claims.ClaimPublic Overridable Function FindFirst (type As String) As ClaimParameters
- type
- String
The claim type to match.
Returns
The first matching claim or null if no match is found.
Exceptions
type is null.
Remarks
The comparison is done in StringComparison.OrdinalIgnoreCase mode.
Applies to
.NET 9 and other versions
| Product | Versions |
|---|---|
| .NET | Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9 |
| .NET Framework | 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
| .NET Standard | 2.0, 2.1 |
| UWP | 10.0 |
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