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POHow can I add spell-checking to my rich text box?
 

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  1. POHow can I add spell-checking to my rich text box?
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    <p>I would like to know if there's an easy way to implement spell check to my rich text box? I have heard there's a way to use the spell check from MS Word, but I would like to know if I could add an independent spell check to my application. If somebody could provide me with a tutorial on how to do this (video or webpage or example or anything), then I'd really appreciate it.</p> <p>--EDIT--</p> <p>Following on from the answer I received, I implemented the spell check to my code and it is now as follows:</p> <pre><code>private NetSpell.SpellChecker.Spelling spelling; private NetSpell.SpellChecker.Dictionary.WordDictionary wordDictionary; internal System.Windows.Forms.Button spellButton; internal System.Windows.Forms.RichTextBox demoRichText; private System.ComponentModel.IContainer components2; internal System.Windows.Forms.RichTextBox Document; internal NetSpell.SpellChecker.Spelling SpellChecker; private System.ComponentModel.IContainer components1; internal NetSpell.SpellChecker.Dictionary.WordDictionary WordDictionary; </code></pre> <p>...</p> <pre><code>private void toolStripButton1_Click(object sender, EventArgs e) { try { this.spelling.Text = this.richTextBoxPrintCtrl1.Text; // I get an error on this line. this.spelling.SpellCheck(); } catch { MessageBox.Show("Error loading Spell Checker. Please reload application and try again.", "Error!", MessageBoxButtons.OK, MessageBoxIcon.Error); } } private void spelling_DeletedWord(object sender, NetSpell.SpellChecker.SpellingEventArgs e) { int start = this.richTextBoxPrintCtrl1.SelectionStart; int length = this.richTextBoxPrintCtrl1.SelectionLength; this.richTextBoxPrintCtrl1.Select(e.TextIndex, e.Word.Length); this.richTextBoxPrintCtrl1.SelectedText = ""; if (start &gt; this.richTextBoxPrintCtrl1.Text.Length) start = this.richTextBoxPrintCtrl1.Text.Length; if ((start + length) &gt; this.richTextBoxPrintCtrl1.Text.Length) length = 0; this.richTextBoxPrintCtrl1.Select(start, length); } private void spelling_ReplacedWord(object sender, NetSpell.SpellChecker.ReplaceWordEventArgs e) { int start = this.richTextBoxPrintCtrl1.SelectionStart; int length = this.richTextBoxPrintCtrl1.SelectionLength; this.richTextBoxPrintCtrl1.Select(e.TextIndex, e.Word.Length); this.richTextBoxPrintCtrl1.SelectedText = e.ReplacementWord; if (start &gt; this.richTextBoxPrintCtrl1.Text.Length) start = this.richTextBoxPrintCtrl1.Text.Length; if ((start + length) &gt; this.richTextBoxPrintCtrl1.Text.Length) length = 0; this.richTextBoxPrintCtrl1.Select(start, length); } private void spelling_EndOfText(object sender, System.EventArgs e) { Console.WriteLine("EndOfText"); } </code></pre> <p>However, when I try to load the checker, I get a NullReferenceExeption was unhandled error on the line uncommented in the code.</p> <p>Any ideas? I don't know where to go from this point. I can load the program, but I get an error on the uncommented line of code. I've tried following the demo, but I can't seem to see why the demos code works but mine refuses to play nice... My code is exactly the same as the demo example (from what I can see), so why is it now working and giving me an error when I try to run the spell checker?</p>
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    1. COI think you will find an answer to your question in this thread: http://stackoverflow.com/questions/453611/what-is-the-best-spell-checking-library-for-c
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      1. POHow can I add spell-checking to my rich text box?
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    2. CO@s_qw23 which part of this thread are you referring to specifically? :o)
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    3. COat this one: "if I could add an independent spell check to my application". If its not matching what you are searching for I'm sry :D Thought you were searching a module or something but if you want to write it on your own its probably not the right source.
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      1. POHow can I add spell-checking to my rich text box?
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