wpf 文本框绑定日期时间

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时间:2020-09-13 12:47:20  来源:igfitidea点击:

wpf textbox binding datetime

wpftextbox

提问by Serg

Im trying to set date time to a textbox but that gives an exception: System.Windows.Data.Binding.Path' threw an exception.

我试图将日期时间设置为文本框,但这给出了一个异常:System.Windows.Data.Binding.Path' 抛出了一个异常。

If I use TextBlock everything is fine.

如果我使用 TextBlock 一切都很好。

any help will be appreciated

任何帮助将不胜感激

thank you

谢谢你

xmlns:sys="clr-namespace:System;assembly=mscorlib"

 <TextBlock   Name="block" Text="{Binding Source={x:Static sys:DateTime.Now},  StringFormat='yyyy-MM-dd HH:mm:ss '}"/>

 <TextBox   Name="block1" Text="{Binding Source={x:Static sys:DateTime.Now},  StringFormat='yyyy-MM-dd HH:mm:ss '}"/>

回答by Osman Esen

This binding works using a TextBox and should be what you're looking for:

此绑定使用 TextBox 工作,应该是您要查找的内容:

<TextBox HorizontalAlignment="Left" Height="23" Margin="0,260,0,0" Text="{Binding Source={x:Static sys:DateTime.Now}, Mode=OneWay,  StringFormat='yyyy-MM-dd HH:mm:ss '}" VerticalAlignment="Top" Width="120"/>

result:

结果:

enter image description here

在此处输入图片说明

回答by ELH

this works fine when you set the Binding Mode in the TextBoxto OneWay:

当您在TextBoxto 中设置绑定模式时,这可以正常工作OneWay

 <TextBox Grid.Row="1"   Name="block1" Text="{Binding Source={x:Static sys:DateTime.Now},  StringFormat='yyyy-MM-dd HH:mm:ss ',Mode=OneWay}"/>

this is due to the fact that the default Binding mode in TextBlockis OneWayand in TextBoxis TwoWay

这是因为默认绑定模式 in TextBlockisOneWay和 in TextBoxisTwoWay