【发布时间】:2015-09-08 08:46:17
【问题描述】:
所以我有这个Window 类:
public partial class WorkerCard : Window
{
public string jobsPath;
public List<Job> List { get; set; }
public WorkerCard()
{
InitializeComponent();
Worker w = new Worker
{
Num = 1,
Id = 123456789,
Name = "ישראל",
Last = "ישראלי",
City = "",
WorkStart = new DateTime(2015, 10, 1),
WorkEnd = new DateTime(2017, 1, 1),
Job = new Job
{
Name = "",
Rate = 0,
Global = 0
},
Rides = 0,
Ride = false
};
this.DataContext = w;
string path = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments) + "\\ShalomCollege\\";
Job[] jobs = new JavaScriptSerializer().Deserialize<Job[]>(File.ReadAllText(path + "jobs.json"));
List = jobs.OfType<Job>().ToList();
}
}
我想将Worker 对象绑定到我所做的一些TextBoxes,但是我需要将Job 对象的List(或数组)绑定到ComboBox。似乎没有任何效果。
XAML(分隔ComboBox):
<Window x:Class="ShalomColl.WorkerCard"
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:local="clr-namespace:ShalomColl"
mc:Ignorable="d"
Title="WorkerCard" Height="350" Width="350">
<Window.Resources>
<Style x:Key="IsZero" TargetType="{x:Type TextBox}">
<Style.Triggers>
<DataTrigger Binding="{Binding Job.Rate}" Value="0">
<Setter Property="IsEnabled" Value="False" />
</DataTrigger>
</Style.Triggers>
</Style>
</Window.Resources>
<Grid FlowDirection="RightToLeft">
<StackPanel x:Name="stackPanel">
<DockPanel LastChildFill="True">
<Label DockPanel.Dock="Left" Content="ת.ז:" />
<TextBox Text="{Binding Id}" MaxLength="9" />
</DockPanel>
<DockPanel LastChildFill="True">
<Label DockPanel.Dock="Left" Content="שם פרטי:" />
<TextBox Text="{Binding Name}" />
</DockPanel>
<DockPanel LastChildFill="True">
<Label DockPanel.Dock="Left" Content="שם משפחה:" />
<TextBox Text="{Binding Last}" />
</DockPanel>
<DockPanel LastChildFill="True">
<Label DockPanel.Dock="Left" Content="תחילת עבודה:" />
<DatePicker Text="{Binding WorkStart}" />
</DockPanel>
<DockPanel LastChildFill="True">
<Label DockPanel.Dock="Left" Content="סיום עבודה:" />
<DatePicker Text="{Binding WorkEnd}" />
<DockPanel LastChildFill="True">
<Label DockPanel.Dock="Left" Content="תפקיד:" />
<ComboBox ItemsSource="{Binding List}" />
</DockPanel>
<DockPanel LastChildFill="True">
<Label DockPanel.Dock="Left" Content="יישוב:" />
<ComboBox x:Name="City" />
</DockPanel>
<DockPanel LastChildFill="True">
<Label DockPanel.Dock="Left" Content="תעריף לשעה:" />
<TextBox Text="{Binding Job.Rate}" Style="{StaticResource IsZero}" />
</DockPanel>
<DockPanel LastChildFill="True">
<Label DockPanel.Dock="Left" Content="משכורת גלובאלית:" />
<TextBox Text="{Binding Job.Global}" Style="{StaticResource IsZero}" />
</DockPanel>
<DockPanel LastChildFill="True">
<CheckBox x:Name="chkBox" VerticalAlignment="Center" DockPanel.Dock="Left" IsChecked="{Binding Ride}" />
<Label DockPanel.Dock="Left" Content="נסיעות:" />
<TextBox Text="{Binding Rides}" IsEnabled="{Binding ElementName=chkBox, Path=IsChecked}" />
</DockPanel>
</StackPanel>
<Button Content="שלח" HorizontalAlignment="Center" VerticalAlignment="Bottom" Margin="0,0,0,20" Width="70" Click="Submit" />
</Grid>
-
编辑:
找到了某种解决方案,但我仍然不明白它是如何工作的。我刚刚将我的List转移到Worker对象中。我认为问题出在DataContext,因为我一次只能设置一个(目前在Worker)。
- 仍在寻找答案...
【问题讨论】:
-
通知用户界面?实现 inotifypropertychanged 或尝试使用 observablecollection 并向其中添加项目
-
@Muds 你能否发布一个答案,举例说明如何做到这一点并接近我的情况?
-
@Muds ? (还有 7 个……)
-
好吧,我忽略了 GazTheDestroyer 提到的事实,您需要先指出正确的 DataContext ..
标签: c# wpf xaml data-binding combobox