我从MSDN抓取了这段代码。我试图做的是类似的,但使用列表而不是三个不同的字符串。所以说
List<string> strList = new List<string>();
strList.Add("Created with C#");
strList.Add("Item 2");
strList.Add("Item 3");
//MSDN CODE BELOW
cbox = new ComboBox();
cbox.Background = Brushes.LightBlue;
cboxitem = new ComboBoxItem();
cboxitem.Content = "Created with C#";
cbox.Items.Add(cboxitem);
cboxitem2 = new ComboBoxItem();
cboxitem2.Content = "Item 2";
cbox.Items.Add(cboxitem2);
cboxitem3 = new ComboBoxItem();
cboxitem3.Content = "Item 3";
cbox.Items.Add(cboxitem3);
cv2.Children.Add(cbox);
试图做cbox.Items.Add(strList);还尝试了一个forloop循环遍历每个元素,但这也不起作用。我有什么想法可以达到这个目的吗?
XAML:
<Grid x:Name="grid44" DataContext="{StaticResource tBLPERMITSViewSource}" HorizontalAlignment="Left" VerticalAlignment="Top" Width="409">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="Auto"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
</Grid.RowDefinitions>
<Label Content="SPR PACKET ASSIGMENT" Grid.Column="0" HorizontalAlignment="Left" Margin="3" Grid.Row="0" VerticalAlignment="Center" FontWeight="Bold"/>
<ComboBox x:Name="sPR_ASSIGNEDComboBox" Grid.Column="1" DisplayMemberPath="SPR_ASSIGNED" HorizontalAlignment="Left" Height="Auto" Text="{Binding SPR_ASSIGNED}" ItemsSource="{Binding Items}" Margin="3,5,-114.35,5" Grid.Row="0" VerticalAlignment="Center" Width="238.35" Background="White" IsReadOnly="True" IsEditable="True" >
</ComboBox>
</Grid>
答案 0 :(得分:5)
以编程方式设置项目:
代码隐藏:
private void PopulateComboBox()
{
cBox.ItemsSource = new List<string> { "Item1", "Item2", "Item3"};
}
XAML:
<ComboBox Width="200" Height="30" x:Name="cBox" />
绑定到一系列项目:
public class DummyClass
{
public int Value { get; set; }
public string DisplayValue { get; set;}
}
public ObservableCollection<DummyClass> DummyClassCollection
{
get
{
return new ObservableCollection<DummyClass>
{
new DummyClass{DisplayValue = "Item1", Value = 1},
new DummyClass{DisplayValue = "Item2", Value = 2},
new DummyClass{DisplayValue = "Item3", Value = 3},
new DummyClass{DisplayValue = "Item4", Value = 4},
};
}
}
XAML:
<ComboBox Width="200" Height="30" x:Name="cBox" ItemsSource="{Binding DummyClassCollection}" DisplayMemberPath="DisplayValue" />
答案 1 :(得分:1)
如果您不想按照绑定/ mvvm模式执行此操作,只需执行以下操作就很简单:
Dog
稍后可以访问以下内容:
foreach (var item in items)
{
_comboBox.Items.Add(item);
_comboBox.SelectedValuePath = "ID";
_comboBox.DisplayMemberPath = "Name";
}
答案 2 :(得分:0)
您可以使用数据绑定。数据绑定允许您将列表中的动态数据绑定到组合框,并生成并填充您正在传递的内容。
答案 3 :(得分:0)
我通过将字典 Ienumerable Keys 与 ComboBox ItemsSource 属性同步,然后在添加或删除项目时创建 Items 属性的 Refresh() 解决了从代码背后添加和删除 ComboBox 项目的问题:
Dictionary<string,Object> dico=new Dictionary<string,Object>();
dico.Add("obj1",obj1);
dico.Add("obj2",obj2);
dico.Add("obj3",obj3);
...
ComboBox combobox=new ComboBox();
combobox.ItemsSource=dico.Keys;
string key=a_key;
Object obj=an_object;
// add //
if (dico.ContainsKey(key)==false)
{
dico.Add(key,obj);
combobox.Items.Refresh();
combobox.SelectedItem=key;
}
// remove //
if (dico.ContainsKey(key)==true)
{
dico.Remove(key);
combobox.Items.Refresh();
}