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[英]WPF Bound TextBox value not updating when other TextBox is changed
[英]WPF - Bound Control Not Updating When Property Changed?
我已經將TextBox的Text屬性綁定到基礎對象的屬性,並且看起來工作得很好。 不幸的是,當我以編程方式更改屬性的值時,它似乎並未在GUI上更新。
這是屬性:
public string SealedDate
{
get
{
string result = string.Empty;
if (_DACase.SealedDate != DateTime.MinValue)
{
result = Formatting.FormatDate(_DACase.SealedDate);
}
return result;
}
set
{
DateTime theDate = DateTime.MinValue;
if (DateTime.TryParse(value, out theDate)
&& _DACase.SealedDate != theDate)
{
_DACase.SealedDate = theDate;
base.OnChanged(); //fires event so I know the value of the object has changed
}
}
}
當設置另一個屬性時,將設置該屬性的值:
public bool IsSealed
{
get
{
return _DACase.SealedId > 0
|| _DACase.SealedDate != DateTime.MinValue;
}
set
{
if (value != (_DACase.SealedId > 0 || _DACase.SealedDate != DateTime.MinValue))
{
if (value)
{
this.SealedId = Authentication.CurrentUser.Id;
this.SealedDate = Formatting.FormatDate(DateTime.Now);
}
else
{
this.SealedId = 0;
this.SealedDate = DateTime.MinValue.ToString();
}
base.OnChanged();
}
}
}
我認為應該不更新的TextBox的XAML:
<TextBox Name="txtSealedDate" Text="{Binding SealedDate}" Grid.Column="5" Grid.Row="3" IsReadOnly="True" />
弗拉德的解決方案(在評論中)是正確的。
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