这可能是一个非常基本的问题，我是Silverlight和MVVM的新手，
我有一个按钮
<Button IsEnabled="{Binding IsUpdatingStatus}"> </Button>
只是想知道我是否必须找到IsUpdatingStatus的源代码（在哪个视图模型中存在） 我在哪里可以看到从Xaml开始的方向
编辑：
我的xaml有这样的标记：
<UserControl x:Class="LMS.Client.View.LeadStatusControl"
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:sdk="http://schemas.microsoft.com/winfx/2006/xaml/presentation/sdk"
xmlns:vc="clr-namespace:LMS.Client.Controls"
xmlns:control="clr-namespace:LMS.Client.Controls;assembly=LMS.Client.Common"
xmlns:commanding="clr-namespace:LMS.Client.Commanding;assembly=LMS.Client.Common"
mc:Ignorable="d">
<ContentControl Style="{StaticResource Content.ContentControlStyle}">
.....
如果我遗失了什么，请告诉我，告诉我我是不是错了
this is actually complete Xaml
:
<UserControl x:Class="LMS.Client.View.LeadStatusControl"
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:sdk="http://schemas.microsoft.com/winfx/2006/xaml/presentation/sdk"
xmlns:vc="clr-namespace:LMS.Client.Controls"
xmlns:control="clr-namespace:LMS.Client.Controls;assembly=LMS.Client.Common"
xmlns:commanding="clr-namespace:LMS.Client.Commanding;assembly=LMS.Client.Common"
mc:Ignorable="d">
<ContentControl Style="{StaticResource Content.ContentControlStyle}">
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="*"/>
<RowDefinition Height="Auto"/>
</Grid.RowDefinitions>
<Border BorderThickness="2" BorderBrush="Silver" CornerRadius="8" Margin="10,0,10,20" Grid.Row="1">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="2"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<Grid Grid.Column="1" Background="Silver" Margin="0,30,0,30"/>
<Grid Grid.Column="0" Margin="5,0,5,0">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="30"/>
<RowDefinition Height="40"/>
<RowDefinition Height="40"/>
<RowDefinition Height="100"/>
<RowDefinition Height="40"/>
<RowDefinition Height="40"/>
<RowDefinition Height="40"/>
<RowDefinition Height="40"/>
<RowDefinition Height="40"/>
<RowDefinition Height="40"/>
<RowDefinition Height="40"/>
<RowDefinition Height="40"/>
<RowDefinition Height="40"/>
<RowDefinition Height="40"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<TextBlock Grid.Column="0" Grid.ColumnSpan="2" Grid.Row="0" Style="{StaticResource Content.LabelTextStyle}" Text="Update Status" HorizontalAlignment="Center"/>
<TextBlock Grid.Column="0" Grid.Row="1" Text="Lead Status" Style="{StaticResource Content.LabelTextStyle}"/>
<ComboBox Grid.Column="1" Grid.Row="1" ItemsSource="{Binding UpdatingStatus}" Style="{StaticResource SemiComboBoxStyle}"
Margin="5,0,5,0" DisplayMemberPath="StatusCode" SelectedItem="{Binding SelectedUpdatingStatus,Mode=TwoWay}" IsEnabled="{Binding IsStatusEditable}"/>
<TextBlock Grid.Column="0" Grid.Row="2" Text="Reason" Style="{StaticResource Content.LabelTextStyle}"/>
<ComboBox Grid.Column="1" Grid.Row="2" ItemsSource="{Binding LeadStatusReasons}" Style="{StaticResource SemiComboBoxStyle}"
Margin="5,0,5,0" DisplayMemberPath="Description" SelectedItem="{Binding SelectedStatusReason,Mode=TwoWay}" IsEnabled="{Binding IsStatusEditable}"/>
<TextBlock Grid.Column="0" Grid.Row="3" Text="Comments" Style="{StaticResource Content.LabelTextStyle}"/>
<TextBox Grid.Column="1" Grid.Row="3" IsEnabled="{Binding IsStatusEditable}" Text="{Binding Entity.DisqualificationComments,Mode=TwoWay}" Margin="5,0,5,0" Height="100" Style="{StaticResource SemiTextBoxStyle}" TextWrapping="Wrap" AcceptsReturn="True"/>
<TextBlock Grid.Column="0" Grid.Row="4" Text="CS Number" Style="{StaticResource Content.LabelTextStyle}"/>
<TextBox Grid.Column="1" Grid.Row="4" IsEnabled="{Binding IsStatusEditable}" Text="{Binding Entity.CSNumber,Mode=TwoWay,NotifyOnValidationError=True, ValidatesOnExceptions=True}" Margin="5,0,5,0" Style="{StaticResource SemiTextBoxStyle}"/>
<TextBlock Grid.Column="0" Grid.Row="5" Text="Contract No" Style="{StaticResource Content.LabelTextStyle}"/>
<TextBox Grid.Column="1" Grid.Row="5" IsEnabled="{Binding IsStatusEditable}" Text="{Binding Entity.ContractNo,Mode=TwoWay}" Margin="5,0,5,0" Style="{StaticResource SemiTextBoxStyle}"/>
<TextBlock Grid.Column="0" Grid.Row="6" Text="Site No" Style="{StaticResource Content.LabelTextStyle}"/>
<TextBox Grid.Column="1" Grid.Row="6" IsEnabled="{Binding IsStatusEditable}" Text="{Binding Entity.SiteNo,Mode=TwoWay}" Margin="5,0,5,0" Style="{StaticResource SemiTextBoxStyle}"/>
<TextBlock Grid.Column="0" Grid.Row="7" Text="Schedule Date" Style="{StaticResource Content.LabelTextStyle}"/>
<control:CustomizedDatePicker Grid.Column="1" Grid.Row="7" Margin="5,0,5,0" Style="{StaticResource SemiDatePickerStyle}" Width="200"
SelectedDate="{Binding Entity.ScheduleDate,Mode=TwoWay}" HorizontalAlignment="Left" IsEnabled="{Binding IsStatusEditable}"/>
<TextBlock Grid.Column="0" Grid.Row="8" Text="Reschedule Date" Style="{StaticResource Content.LabelTextStyle}"/>
<control:CustomizedDatePicker Grid.Column="1" Grid.Row="8" Margin="5,0,5,0" Style="{StaticResource SemiDatePickerStyle}" Width="200"
SelectedDate="{Binding Entity.RescheduledDate,Mode=TwoWay}" HorizontalAlignment="Left" IsEnabled="{Binding IsStatusEditable}"/>
<TextBlock Grid.Column="0" Grid.Row="9" Text="Followup Date" Style="{StaticResource Content.LabelTextStyle}"/>
<control:CustomizedDatePicker Grid.Column="1" Grid.Row="9" Margin="5,0,5,0" Style="{StaticResource SemiDatePickerStyle}" Width="200"
SelectedDate="{Binding Entity.FollowupDate,Mode=TwoWay}" HorizontalAlignment="Left" IsEnabled="{Binding IsStatusEditable}"/>
<TextBlock Grid.Column="0" Grid.Row="10" Text="Installed Date" Style="{StaticResource Content.LabelTextStyle}"/>
<control:CustomizedDatePicker Grid.Column="1" Grid.Row="10" Margin="5,0,5,0" Style="{StaticResource SemiDatePickerStyle}" Width="200"
SelectedDate="{Binding Entity.InstalledDate,Mode=TwoWay}" HorizontalAlignment="Left" IsEnabled="{Binding IsStatusEditable}"/>
<TextBlock Grid.Column="0" Grid.Row="11" Text="Online Date" Style="{StaticResource Content.LabelTextStyle}"/>
<control:CustomizedDatePicker Grid.Column="1" Grid.Row="11" Margin="5,0,5,0" Style="{StaticResource SemiDatePickerStyle}" Width="200"
SelectedDate="{Binding Entity.OnlineDate,Mode=TwoWay}" HorizontalAlignment="Left" IsEnabled="{Binding IsStatusEditable}"/>
<TextBlock Grid.Column="0" Grid.Row="12" Text="Purchasing Submitted Date" Style="{StaticResource Content.LabelTextStyle}"/>
<control:CustomizedDatePicker Grid.Column="1" Grid.Row="12" Margin="5,0,5,0" Style="{StaticResource SemiDatePickerStyle}" Width="200"
SelectedDate="{Binding Entity.PurchasingSubmittedDate,Mode=TwoWay}" HorizontalAlignment="Left" IsEnabled="{Binding IsStatusEditable}"/>
<TextBlock Grid.Column="0" Grid.Row="13" Text="Purchased Date" Style="{StaticResource Content.LabelTextStyle}"/>
<control:CustomizedDatePicker Grid.Column="1" Grid.Row="13" Margin="5,0,5,0" Style="{StaticResource SemiDatePickerStyle}" Width="200"
SelectedDate="{Binding Entity.PurchasedDate,Mode=TwoWay}" HorizontalAlignment="Left" IsEnabled="{Binding IsStatusEditable}"/>
</Grid>
<Grid Grid.Column="2" Margin="5,0,5,0">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="30"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<TextBlock Grid.Column="0" Grid.Row="0" Style="{StaticResource Content.LabelTextStyle}" Text="Disqualifications" HorizontalAlignment="Center"/>
<ListBox Margin="10,0,0,0" Grid.Row="1" Grid.Column="0" Style="{Binding SemiListBoxStyle}"
ItemsSource="{Binding DisqualificationReasons}" IsEnabled="{Binding IsStatusEditable}">
<ListBox.ItemTemplate>
<DataTemplate>
<CheckBox ClickMode="Press" IsChecked="{Binding IsSelected,Mode=TwoWay}" IsEnabled="{Binding IsEnabled}">
<CheckBox.Content>
<TextBlock Text="{Binding Reason.DisplayText}" Style="{StaticResource Content.LabelTextStyle}" />
</CheckBox.Content>
</CheckBox>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
</Grid>
</Grid>
</Border>
<Grid Grid.Row="2">
<StackPanel HorizontalAlignment="Left" Margin="10,20,10,20" Orientation="Horizontal">
<Button Style="{StaticResource ButtonStyle}" Width="80"
Command="{Binding SubmitUpdateStatusCommand}" IsEnabled="{Binding IsUpdatingStatus}">
<TextBlock Text="Update" Style="{StaticResource Button.TextStyle}"/>
</Button>
<Button Style="{StaticResource ButtonStyle}" Width="80" Margin="12,0,0,0"
Command="{Binding CancelCommand}" IsEnabled="{Binding CanCancel}">
<TextBlock Text="{StaticResource Common.Cancel}" Style="{StaticResource Button.TextStyle}"/>
</Button>
</StackPanel>
</Grid>
</Grid>
</ContentControl>
现在可以告诉我标记的位置在哪里
答案 0 :(得分：0)
Button的DataContext属性将为您提供绑定属性的来源。
答案 1 :(得分：0)
要使数据绑定工作，您需要将DataContext设置为ViewModel。您可以通过各种方式执行此操作。例如，在页面的构造函数中：
Page.xaml.cs
public Page()
{
DataContext = new PageViewModel();
}
如果在PageViewModel中有一个名为IsUpdatingStatus的布尔属性，该按钮将根据IsUpdatingStatus的设置更新其状态。
有些人不喜欢使用构造函数来设置DataContext。您也可以在XAML文件中静态设置它，也可以查看this question的答案，或使用OnNavigatedTo事件处理程序：
protected override void OnNavigatedTo(NavigationEventArgs e) { }
我希望（部分）回答你的问题。