Gemstone Common Library
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# StringExtensionsIsAllDigits Method

Tests to see if a string is contains only digits based on Char.IsDigit function.

## Definition

Namespace: Gemstone.StringExtensions
Assembly: Gemstone.Common (in Gemstone.Common.dll) Version: 1.0.158 -- Release Build+8af53c44e6ad1fac543a652d58b46c9843b74b64
C#
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    public static bool IsAllDigits(
    	this string? value
    )

VB
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    <ExtensionAttribute>
    Public Shared Function IsAllDigits (
    	value As String
    ) As Boolean

C++
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    public:
    [ExtensionAttribute]
    static bool IsAllDigits(
    	String^ value
    )

JavaScript
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    Gemstone.StringExtensions.StringExtensions.IsAllDigits = function(value);

#### Parameters

value String
  Input string.

#### Return Value

Boolean
True, if all string's characters are digits; otherwise, false.

#### Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type String. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).

## See Also

#### Reference

StringExtensions Class
Gemstone.StringExtensions Namespace
IsDigit(Char)