Uri.IsHexEncoding(String, Int32) Method
Definition
Important
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Determines whether a character in a string is hexadecimal encoded.
public:
static bool IsHexEncoding(System::String ^ pattern, int index);public static bool IsHexEncoding (string pattern, int index);static member IsHexEncoding : string * int -> boolPublic Shared Function IsHexEncoding (pattern As String, index As Integer) As BooleanParameters
- pattern
- String
The string to check.
- index
- Int32
The location in pattern to check for hexadecimal encoding.
Returns
true if pattern is hexadecimal encoded at the specified location; otherwise, false.
Examples
The following code example determines whether a character is hexadecimal encoded and, if so, writes the equivalent character to the console.
String^ testString = "%75";
int index = 0;
if ( Uri::IsHexEncoding( testString, index ) )
{
Console::WriteLine( "The character is {0}",
Uri::HexUnescape( testString, index ) );
}
else
{
Console::WriteLine( "The character is not hex encoded" );
}
string testString = "%75";
int index = 0;
if (Uri.IsHexEncoding(testString, index))
Console.WriteLine("The character is {0}", Uri.HexUnescape(testString, ref index));
else
Console.WriteLine("The character is not hexadecimal encoded");
let testString = "%75"
let mutable index = 0
if Uri.IsHexEncoding(testString, index) then
printfn $"The character is {Uri.HexUnescape(testString, &index)}"
else
printfn "The character is not hexadecimal encoded"
Dim testString As String = "%75"
Dim index As Integer = 0
If Uri.IsHexEncoding(testString, index) Then
Console.WriteLine("The character is {0}", Uri.HexUnescape(testString, index))
Else
Console.WriteLine("The character is not hexadecimal encoded")
End If
Remarks
The IsHexEncoding method checks for hexadecimal encoding that follows the pattern "%hexhex" in a string, where "hex" is a digit from 0 to 9 or a letter from A-F (case-insensitive).
