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5601235
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2011-04-08T22:02:46.283
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2011-04-08T22:02:46.283
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<p>The following modified code from the method shown above solves the problem. I am still curious however if Microsoft has a bug with the textBox.GetLineText method.</p> <pre><code> public static String AddNewLineCharsToMessage(TextBox textBox) { String message = String.Empty; if (textBox == null) return message; // Just assign the text if we have a single line message if (textBox.LineCount < 2) return textBox.Text; // Find the index for the first line that contains text displayed in the TextBox. // GetLineText(index) will return the text displayed/entered by the user for indices less // than the index of the line that the text is actually displayed on. This seems to be // a bug to me, but I will workaround this Microsoft weirdness. // Find the index of first line that actually displays text by using the length of TextBox.Text Int32 firstTextLineIndex = 0; Int32 textLen = textBox.Text.Length; Int32 textLinesLen = 0; for (Int32 firstTextLine = textBox.LineCount - 1; firstTextLine >= 0; firstTextLine--) { textLinesLen += textBox.GetLineText(firstTextLine).Length; if (textLinesLen >= textLen) { firstTextLineIndex = firstTextLine; break; } } // First strip all the carriage returns and newline characters // so we don't have duplicate newline characters in the message. // Then add back in just the newline characters which is what the car // code uses to parse out the message to be displayed on each line. var textLines = new List<string>(5); int lineCount = Math.Min(textBox.LineCount, textBox.MaxLines); for (Int32 index = 0; index < lineCount; index++) { if (index < firstTextLineIndex) textLines.Add(""); else // if (textBox.GetLineText(index).Length > 0) { textLines.Add(textBox.GetLineText(index)); textLines[index] = textLines[index].Replace("\r", ""); textLines[index] = textLines[index].Replace("\n", ""); } } message = String.Empty; for (Int32 index = 0; index < lineCount; index++) message += textLines[index] + (index < lineCount - 1 ? "\n" : ""); return message; } </code></pre>
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1. POHow do you create a WYSIWYG TextBox control editor for vertically centered messages sent to a mobile device?
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1. USeesh
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