好的,关于这个问题,我已经按照以下两篇帖子[ Post 1
, Post 2
]进行了讨论。但是,即使遵循正确的实施方式,这个问题仍然让我大吃一惊。
所以这是我的转换器,它被添加到项目的ViewModels
目录中:
public class ChangePasswordConverter : IMultiValueConverter
{
public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)
{
return ....
}
public object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture)
{
throw new NotImplementedException();
}
}
现在下面是我的HomeWindow.xaml
<Controls:MetroWindow x:Class="KEOffice.Views.HomeWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:Controls="clr-namespace:MahApps.Metro.Controls;assembly=MahApps.Metro"
xmlns:v="clr-namespace:KEOffice.Views"
xmlns:vm="clr-namespace:KEOffice.ViewModels"
xmlns:prism="http://prismlibrary.com/"
prism:ViewModelLocator.AutoWireViewModel="True">
<Window.Resources>
<vm:ChangePasswordConverter x:Key="ChangePasswordConverter" />
</Window.Resources>
<!--But when I try to do this-->
<Button Command="{Binding ChangePassword.UpdatePassword}">
<Button.CommandParameter>
<MultiBinding ConverterParameter="{StaticResource ChangePasswordConverter}">
<Binding Path="OldPass" ElementName="OldPass"/>
<Binding Path="NewPass" ElementName="NewPass"/>
<Binding Path="ConfirmPass" ElementName="ConfirmPass"/>
</MultiBinding>
</Button.CommandParameter>
</Button>
</Controls:MetroWindow>
即使我已正确引用viewmodels
,转换器存在且指定有效StaticResource
,它也会引发Cannot set multibinding because multivalue converter must be specified
。我也做过重建,清理重建等,但仍然是同样的问题。我需要注意什么才能使其正常工作?
答案 0 :(得分:1)
您不使用ConverterParameter来指定转换器,而是使用Converter。