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fixes: GraphingNumber doesn't work correctly

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tian-lt 2021-06-15 10:49:02 +08:00
commit 9c36d93329
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src/Calculator/Controls/MathRichEditBox.cs
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@ -137,7 +137,7 @@ namespace CalculatorApp
// If the rich edit has content already, then the mathzone will already be created due to mathonly mode being set and the selection will exist inside the // If the rich edit has content already, then the mathzone will already be created due to mathonly mode being set and the selection will exist inside the
// math zone. To handle this, we will force a math zone to be created in teh case of the text being empty and then replacing the text inside of the math // math zone. To handle this, we will force a math zone to be created in teh case of the text being empty and then replacing the text inside of the math
// zone with the newly inserted text. // zone with the newly inserted text.
if (GetMathTextProperty() == null) if (string.IsNullOrEmpty(GetMathTextProperty()))
{ {
SetMathTextProperty("<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>x</mi></math>"); SetMathTextProperty("<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi>x</mi></math>");
TextDocument.Selection.StartPosition = 0; TextDocument.Selection.StartPosition = 0;