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copied!<p>You can use this in the immediate window:</p> <pre><code>str.Contains("\u8203"); </code></pre> <p>Or put it in the watch window so you'll just have to click the refresh button near the watched value to see the result, rather than re-entering it to the immediate (although you can always press up and then enter to re-enter the last command!)</p> <p>To check for ANY hidden character, you can either have a static array with all hidden characters and check:</p> <pre><code>HIDDENS.Any(c => str.Contains(c.ToString()) </code></pre> <p>And preferable even save the hidden characters as one-length strings and then do:</p> <pre><code>HIDDENS.Any(str.Contains) </code></pre> <p>OR you could be really sophisticated and do THIS:</p> <pre><code>private static readonly Bitmap BMP = new Bitmap(1000, 1000); private static readonly Graphics GRAPHICS = Graphics.FromImage(BMP); private static readonly Font FONT = new Font("Arial", 20); private static readonly RectangleF RECT = new RectangleF(0, 0, 1000, 1000); public static bool CheckInvisibleChars(string text) { var stringFormat1 = new StringFormat(StringFormatFlags.MeasureTrailingSpaces); stringFormat1.SetMeasurableCharacterRanges( Enumerable.Range(0, text.Length - 2).Select(i => new CharacterRange(i, 1)).ToArray()); return GRAPHICS.MeasureCharacterRanges(text, FONT, RECT, stringFormat1).Any( reg => reg.GetBounds(GRAPHICS).Width.Equals(0f)); } </code></pre> <p>From here it should also be easy to return information about each hidden character, etc.</p>

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