wpf 将 List<string> 绑定到 GridViewColumn
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bind List<string> to GridViewColumn
提问by New Developer
I have a GridViewlike following.
我有一个GridView喜欢的追随者。
<Grid>
<ListView Margin="8,44,8,50" TabIndex="57" Name="CustomFieldList">
<ListView.View>
<GridView AllowsColumnReorder="False">
<GridViewColumn Header="Semester Name" Width="120" DisplayMemberBinding="{Binding FieldName}"/>
<GridViewColumn Header="Subjects" Width="150" DisplayMemberBinding="{Binding TypeValidations}"/>
</GridView>
</ListView.View>
</ListView>
</Grid>
My class is;
我的班级是；
public class DigreePrograme
{
public string semester{ get; set; }
public List<string> subjects { get; set; }
}
I have an observer collection and I have bound that to list.
我有一个观察者集合，我已将其绑定到列表中。
static ObservableCollection<DigreePrograme> digreeList = new ObservableCollection<DigreePrograme>();
public ObservableCollection<DigreePrograme> DigreeList
{
get { return digreeList }
set { digreeList = value; OnPropertyChanged("DigreeList"); }
}
on the FormFoad
在FormFood 上
CustomFieldList.ItemsSource=DigreeList;
Issuesemesterproperty displays perfectly. But SubjectList not. It displys as Collection. How to fix this?
问题semester属性显示完美。但Subject列表不是。它显示为Collection。如何解决这个问题？
回答by sa_ddam213
You could add a ItemsControlin a DataTemplatein your GridViewColumnto show all the Subjectitems
您可以ItemsControl在 aDataTemplate中添加一个GridViewColumn以显示所有Subject项目
xaml:
xml:
<Window x:Class="WpfApplication11.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="275" Width="275" x:Name="UI">
<Grid>
<ListView Name="CustomFieldList" ItemsSource="{Binding ElementName=UI, Path=DigreeList}" >
<ListView.View>
<GridView AllowsColumnReorder="False">
<GridViewColumn Header="Semester Name" Width="120" DisplayMemberBinding="{Binding Semester}"/>
<GridViewColumn Header="Subjects" Width="150" >
<GridViewColumn.CellTemplate>
<DataTemplate>
<ItemsControl ItemsSource="{Binding Subjects}" Width="150" />
</DataTemplate>
</GridViewColumn.CellTemplate>
</GridViewColumn>
</GridView>
</ListView.View>
</ListView>
</Grid>
</Window>
Code:
代码：
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
DigreeList.Add(new DigreePrograme { Semester = "Semester 1", Subjects = new List<string>(new string[] {"Math","Art","Engish" }) });
}
private ObservableCollection<DigreePrograme> digreeList = new ObservableCollection<DigreePrograme>();
public ObservableCollection<DigreePrograme> DigreeList
{
get { return digreeList; }
set { digreeList = value;}
}
}
public class DigreePrograme
{
public string Semester { get; set; }
public List<string> Subjects { get; set; }
}
result:
结果：
回答by Steoates
I would suggest you create a new string property on your view model that would just concatenate your collection and return that. It would be the simplest way to go about this..
我建议你在你的视图模型上创建一个新的字符串属性，它只会连接你的集合并返回它。这将是解决此问题的最简单方法..
public class DigreePrograme
{
public string semester { get; set; }
public List<string> subjects { get; set; }
public string SubjectsDisplay
{
get
{
string returnVal = string.Empty;
foreach (string subject in subjects)
{
returnVal += subject + ", ";
}
return returnVal.TrimEnd(',', ' ');
}
}
}
something like that may help.
这样的事情可能会有所帮助。
obviously change your binding also :)
显然也要改变你的绑定:)
cheers. ste.
干杯。圣。
