C# WPF 中的文本框绑定更新
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时间：2020-08-09 20:05:54 来源:igfitidea点击:
Textbox binding update in WPF
提问by OneMoreVladimir
MessageText property gets updated only when I hit another control. What is more if I press any button it's Click handler isn't executed and the MessageText set is executed instead. I've broken my head.
MessageText 属性仅在我点击另一个控件时更新。更重要的是，如果我按下任何按钮，则不会执行 Click 处理程序，而是执行 MessageText 集。我摔断了头。
<TextBox x:Name="messageText" Grid.Row="1" Grid.Column="0"
TextWrapping="Wrap" Text="{Binding Path=MessageText, Mode=TwoWay}"/>
private void ChatView_Loaded(object sender, RoutedEventArgs e)
{
DataContext = viewModel;
}
public string MessageText
{
get
{
return this.messageText;
}
set
{
this.messageText = value;
OnProperyChanged("MessageText");
}
}
采纳答案by Aghilas Yakoub
You can adjust UpdateSourceTrigger to PropertyChanged
您可以将 UpdateSourceTrigger 调整为 PropertyChanged
<TextBox x:Name="messageText" Grid.Row="1" Grid.Column="0"
TextWrapping="Wrap" Text="{Binding Path=MessageText, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"/>
