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Char.IsLower Method (Char)
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Indicates whether the specified Unicode character is categorized as a lowercase letter.
Namespace:
System
Assembly:
mscorlib (in mscorlib.dll)
'Declaration
Public Shared Function IsLower ( _
c As Char _
) As Boolean
Return Value
Type:
System.Booleantrue if c is a lowercase letter; otherwise, false.
Valid lowercase letters are members of the following category in UnicodeCategory: LowercaseLetter.
The following example demonstrates IsLower.
Module Example
Public Sub Demo(ByVal outputBlock As System.Windows.Controls.TextBlock)
Dim ch As Char
ch = "a"c
outputBlock.Text &= Char.IsLower(ch) & vbCrLf ' Output: "True"
outputBlock.Text += String.Format(Char.IsLower("upperCase", 5)) & vbCrLf ' Output: "False"
End Sub
End Module
Windows Phone OS
Supported in: 8.1, 8.0, 7.1, 7.0