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fix err #627

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Aug 24, 2020
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fix err #627

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14 changes: 12 additions & 2 deletions XAML/ValidationCallback/ValidationCallback/HomePage.xaml.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -8,7 +8,17 @@ public partial class HomePage : ContentPage

public double Angle {
get { return (double)GetValue (AngleProperty); }
set { SetValue (AngleProperty, value); }
set
{
if (IsValidValue(null, value))
{
SetValue (AngleProperty, value);
}
else
{
DisplayAlert("Alert", "Angle must be between 0-360", "OK");
}
}
}

public HomePage ()
Expand All @@ -19,7 +29,7 @@ public HomePage ()
static bool IsValidValue (BindableObject view, object value)
{
double result;
bool isDouble = double.TryParse (value.ToString (), out result);
double.TryParse (value.ToString (), out result);
return (result >= 0 && result <= 360);
}
}
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