(SQL Server) HTML Entity Encode and Decode in StringBuilder

Demonstrates HTML encoding and decoding the contents of a StringBuilder.

Note: This example requires Chilkat v11.1.0 or greater.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

-- Important: See this note about string length limitations for strings returned by sp_OAMethod calls.
--
CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    -- Important: Do not use nvarchar(max).  See the warning about using nvarchar(max).
    DECLARE @sTmp0 nvarchar(4000)
    DECLARE @sb int
    EXEC @hr = sp_OACreate 'Chilkat.StringBuilder', @sb OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    DECLARE @s nvarchar(4000)
    SELECT @s = '< é ü ç Ω Hello & World ✓ >'
    DECLARE @success int
    EXEC sp_OAMethod @sb, 'Append', @success OUT, @s

    EXEC sp_OAMethod @sb, 'Encode', @success OUT, 'html', 'utf-8'
    EXEC sp_OAMethod @sb, 'GetAsString', @sTmp0 OUT
    PRINT @sTmp0

    -- Output:
    -- < &eacute; &uuml; &ccedil; &ohm; Hello & World &check; >

    -- To decode:
    EXEC sp_OAMethod @sb, 'Decode', @success OUT, 'html', 'utf-8'
    EXEC sp_OAMethod @sb, 'GetAsString', @sTmp0 OUT
    PRINT @sTmp0

    -- Output:
    -- < é ü ç Ω Hello & World ✓ >

    EXEC @hr = sp_OADestroy @sb


END
GO