NameValueCollection.Set(String, String) Method

Reference

Definition

Namespace:: System.Collections.Specialized

Assemblies:: System.dll, System.Collections.Specialized.dll

Assemblies:: netstandard.dll, System.Collections.Specialized.dll

Assembly:: System.Collections.Specialized.dll

Assembly:: System.dll

Assembly:: netstandard.dll

Source:: NameValueCollection.cs

Source:: NameValueCollection.cs

Source:: NameValueCollection.cs

Important

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Sets the value of an entry in the NameValueCollection.

public:
 virtual void Set(System::String ^ name, System::String ^ value);

public virtual void Set(string name, string value);

public virtual void Set(string? name, string? value);

abstract member Set : string * string -> unit
override this.Set : string * string -> unit

Public Overridable Sub Set (name As String, value As String)

Parameters

name: String

The String key of the entry to add the new value to. The key can be null.

value: String

The Object that represents the new value to add to the specified entry. The value can be null.

Exceptions

NotSupportedException

The collection is read-only.

Remarks

If the specified key already exists in the collection, this method overwrites the existing list of values with the specified value. To append the new value to the existing list of values, use the Add method.

If the specified key does not exist in the collection, this method creates a new entry using the specified key and the specified value.

This method is an O(1) operation.

Applies to

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, 10
.NET Framework	1.1, 2.0, 3.0, 3.5, 4.0, 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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