String::Concat Method (IEnumerable<String>)
Concatenates the members of a constructed IEnumerable<T> collection of type String.
Assembly: mscorlib (in mscorlib.dll)
[ComVisibleAttribute(false)] public: static String^ Concat( IEnumerable<String^>^ values )
Parameters
- values
- Type: System.Collections.Generic::IEnumerable<String>
A collection object that implements IEnumerable<T> and whose generic type argument is String.
| Exception | Condition |
|---|---|
| ArgumentNullException | values is nullptr. |
The method concatenates each object in values; it does not add any delimiters. To specify a delimiter between each member of values, call the Join(String, IEnumerable<String>) method.
An Empty string is used in place of any null argument.
Concat(IEnumerable<String>) is a convenience method that lets you concatenate each element in an IEnumerable(Of String) collection without first converting the elements to a string array. It is particularly useful with Language-Integrated Query (LINQ) query expressions. The following example passes a List(Of String) object that contains either the uppercase or lowercase letters of the alphabet to a lambda expression that selects letters that are equal to or greater than a particular letter (which, in the example, is "M"). The IEnumerable(Of String) collection that is returned by the Enumerable::Where method is passed to the Concat(IEnumerable<String>) method to display the result as a single string.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.