IQueryCollection.ContainsKey(String) Method

  • Reference

Definition

Namespace:
Microsoft.AspNetCore.Http
Assembly:
Microsoft.AspNetCore.Http.Features.dll
Package:
Microsoft.AspNetCore.Http.Features v1.0.0
Package:
Microsoft.AspNetCore.Http.Features v1.1.0
Package:
Microsoft.AspNetCore.Http.Features v2.0.0
Package:
Microsoft.AspNetCore.Http.Features v2.1.0
Package:
Microsoft.AspNetCore.Http.Features v2.2.0
Package:
Microsoft.AspNetCore.Http.Features v3.0.3
Package:
Microsoft.AspNetCore.Http.Features v3.1.18
Package:
Microsoft.AspNetCore.Http.Features v5.0.9
Package:
Microsoft.AspNetCore.App.Ref v6.0.6
Package:
Microsoft.AspNetCore.App.Ref v7.0.5
Package:
Microsoft.AspNetCore.App.Ref v8.0.0

Determines whether the IQueryCollection contains an element with the specified key.

public:
 bool ContainsKey(System::String ^ key);
public bool ContainsKey (string key);
abstract member ContainsKey : string -> bool
Public Function ContainsKey (key As String) As Boolean

Parameters

key
String

The key to locate in the IQueryCollection.

Returns

Boolean

true if the IQueryCollection contains an element with the key; otherwise, false.

Exceptions

ArgumentNullException

key is null.

Applies to