我正在测试Uno平台和wasm。
我登录Webapi后,测试了一个简单的数据绑定,其中在文本框中有一个用户名,我更新了用户名的属性,以从viewmodel中的绑定属性测试gui的更新。
xaml。
在登录按钮中
var result = await webApiClient.LoginUser(ViewModel.LoginModel);
ViewModel.LoginModel.Email = result.Model.Name;
如果我在UWP下运行该应用程序,则该应用程序有效,在wasm下,该文本框不会更新。
<Page
x:Class="DeviceExchange.MainPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:DeviceExchange"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:ios="http://nventive.com/ios"
xmlns:wasm="http://nventive.com/wasm"
mc:Ignorable="d ios wasm">
<Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
<Grid.RowDefinitions>
<RowDefinition Height="*"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<TextBlock Grid.Row="1" Grid.Column="1" Text="Device Exchange
Portal" Margin="20" FontSize="30" />
<TextBlock Grid.Row="2" Grid.Column="1" Text="username" Margin="3"
FontSize="15" />
<TextBox Grid.Row="3" Grid.Column="1" Text="{x:Bind LoginModel.Email,
Mode=TwoWay}" Background="White" />
<TextBlock Grid.Row="4" Grid.Column="1" Text="username" Margin="3"
FontSize="15" />
<PasswordBox Grid.Row="5" Grid.Column="1" Password="{x:Bind
LoginModel.Password, Mode=TwoWay}" Background="White"/>
<Button Margin="0,5" Click="LoginButton_Click"
VerticalAlignment="Center" HorizontalAlignment="Stretch" Grid.Row="6"
Grid.Column="1" x:Name="LoginButton" Content="Login" />
</Grid>
</Page>
答案 0 :(得分:0)
{x:Bind Mode=TwoWay}
。
https://github.com/unoplatform/uno/issues/2587
相反,您可以这样写,作为一种变通方法:
Text="{Binding LoginModel.Email, Mode=TwoWay, RelativeSource={RelativeSource Self}}"