我需要我的按钮在特定的布局中有几个文本,所以我试图在我的按钮上放置一个网格来组织信息。
我的问题是,虽然我可以显示未修改的按钮,但网格永远不会出现在其中或顶部。
这里是.xaml代码:
<!-- ...other code up above... -->
<ItemsControl x:Name="btnList">
<ItemsControl.ItemTemplate>
<DataTemplate>
<Grid Background="Green">
<Grid.RowDefinitions>
<RowDefinition Height="3*" />
<RowDefinition Height="2*" />
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="1*" />
<ColumnDefinition Width="1*" />
<ColumnDefinition Width="1*" />
</Grid.ColumnDefinitions>
<TextBlock Grid.ColumnSpan="3"
Grid.Row="0"
Grid.Column="0"
HorizontalAlignment="Center"
Margin="15"
Text="Test Text 1" />
<TextBlock Grid.Row="1"
Grid.Column="0"
HorizontalAlignment="Center"
Text="Test Text 2" />
<TextBlock Grid.Row="1"
Grid.Column="1"
HorizontalAlignment="Center"
Text="Test Text 3" />
<TextBlock Grid.Row="1"
Grid.Column="2"
HorizontalAlignment="Center"
Text="Test Text 4" />
</Grid>
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
这里是关联的.xaml.cs代码:
public THINGSelectFlyout()
{
this.InitializeComponent();
foreach (XTHING_IndexItem indexItem in DataStore.Instance.THINGsFoundOnTap)
{
Button button = new Button()
{
Name = indexItem.cGuid.ToString("N"),
Content = indexItem.cName,
Style = Application.Current.Resources["BigButtons"] as Style
};
button.Click += THINGButton_Click;
btnList.Items.Add(button);
}
当像这样运行时,按钮出现(使用默认背景颜色,蓝色),并在.xaml.c文件中提供给他们的内容。
作为旁注,我正在修改别人的代码和长话短说明我无法将整个按钮构造移动到.xaml文件中;太多其他事情都希望它存在。
答案 0 :(得分:0)
将ItemsControl绑定到属于ViewModel的列表:
<ItemsControl x:Name="btnList" ItemsSource="{Binding Items}">
<ItemsControl.ItemTemplate>
<DataTemplate>
<Button>
<Button.Content>
<!-- Place your Grid Xaml here -->
</Button.Content>
</Button>
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
向您的ViewModel添加ObservableCollection
,该集合将是DataStore.Instance.THINGsFoundOnTap
类型的列表。
因此,在ViewModel中,添加一个新的实例属性:
private ObservableCollection<YourType> _items = new ObservableCollection<YourType>();
public ObservableCollection<YourType> Items
{
get{ return _items; }
}
然后修改视图以便添加ViewModel,注意必须将视图DataContext设置为视图模型:
var viewModel = new YourViewModel(); //create your view model
DataContext = viewModel; // set the views DataContext
foreach (XTHING_IndexItem indexItem in DataStore.Instance.THINGsFoundOnTap)
{
viewModel.Items.Add( indexItem);
}
最后,修改您的视图以绑定到ViewModels Items
集合中的单个项目:
<TextBlock Grid.Row="1"
Grid.Column="0"
HorizontalAlignment="Center"
Text="{Bind cName}" />
您可以按照您想要的方式处理点击事件或命令。
答案 1 :(得分:0)
难道只是觉得,经过几个小时的摸索,我在这里寻求帮助的那一刻,然后我在下一次在线搜索时偶然发现了答案?
网格最好在.xaml.cs文件中创建,而不是.xaml文件。也许你可以让.xaml与ViewModel一起工作,但是当它同样适用时,我还没有制作另一个新的视图模型。
新的.xaml代码:
<!-- ...other code up above... -->
<ItemsControl x:Name="btnList" ItemsSource="{Binding Items}"/>
新的.xaml.cs代码:
public THINGSelectFlyout()
{
this.InitializeComponent();
foreach (XTHING_IndexItem indexItem in DataStore.Instance.THINGsFoundOnTap)
{
Button button = new Button()
{
Name = indexItem.cGuid.ToString("N"),
Style = Application.Current.Resources["BigButtons"] as Style
};
Grid textGrid = new Grid();
// Define Grid rows
RowDefinition rowDef1 = new RowDefinition();
RowDefinition rowDef2 = new RowDefinition();
RowDefinition rowDef3 = new RowDefinition();
rowDef1.Height = new GridLength(20);
rowDef2.Height = new GridLength(22);
rowDef3.Height = new GridLength(25);
textGrid.RowDefinitions.Add(rowDef1);
textGrid.RowDefinitions.Add(rowDef2);
textGrid.RowDefinitions.Add(rowDef3);
// Define Grid columns
ColumnDefinition colDef1 = new ColumnDefinition();
ColumnDefinition colDef2 = new ColumnDefinition();
colDef1.Width = new GridLength(150);
colDef2.Width = new GridLength(105);
textGrid.ColumnDefinitions.Add(colDef1);
textGrid.ColumnDefinitions.Add(colDef2);
// Set indexItem text
TextBlock indexText = new TextBlock();
indexText.Text = indexItem.cName;
indexText.TextAlignment = 0;
textGrid.Children.Add(indexText);
Grid.SetColumnSpan(indexText, 2);
Grid.SetRow(indexText, 1);
// Set assignment text
TextBlock assgnText = new TextBlock();
assgnText.Text = " Assgn: " + indexItem.cAssignedTo;
indexText.TextAlignment = 0;
textGrid.Children.Add(assgnText);
Grid.SetRow(assgnText, 2);
// Set owner text
TextBlock ownerText = new TextBlock();
ownerText.Text = "Owner: " + indexItem.cOwnedBy;
indexText.TextAlignment = 0;
textGrid.Children.Add(ownerText);
Grid.SetRow(ownerText, 2);
Grid.SetColumn(ownerText, 1);
button.Content = textGrid;
button.Click += THINGButton_Click;
btnList.Items.Add(button);
}
}
唯一的缺点是我不确定如何放下一个*运算符来自动调整像.xaml允许的行和列维度,但它可以满足我的需要。