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fixes a null ref

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This commit is contained in:
Paul Schneider
2016-10-22 18:43:21 +02:00
parent a963cf211e
commit 3016e8257e
1 changed files with 2 additions and 2 deletions
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4
BookAStar/BookAStar/Behaviors/MaxLengthValidator.cs
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@ -26,8 +26,8 @@ namespace BookAStar.Behaviors
private void bindable_TextChanged(object sender, TextChangedEventArgs e) private void bindable_TextChanged(object sender, TextChangedEventArgs e)
{ {
IsValid = e.NewTextValue.Length <= 0 || e.NewTextValue.Length <= MaxLength; IsValid = e.NewTextValue == null? false : ( e.NewTextValue.Length > 0 && e.NewTextValue.Length <= MaxLength ) ;
if (!IsValid && e.NewTextValue.Length > MaxLength) if (!IsValid) if (e.NewTextValue!=null) if (e.NewTextValue.Length > MaxLength)
((Editor)sender).Text = e.NewTextValue.Substring(0, MaxLength); ((Editor)sender).Text = e.NewTextValue.Substring(0, MaxLength);
} }