如何在我的UserControl中存储控件列表，并能够从xaml进行设置 [英] How to store list of Controls inside my UserControl, and be able to set them from the xaml
问题描述
嘿，
我想在xaml的用户控件中设置一个FrameworkElements列表.假设我的课程定义是:
MyControl类:UserControl
{
公共列表< FrameworkElement> ControlList {get;放; }
}
然后，我希望能够在xaml中执行以下操作:
< MyControl>
< Button/>
<画布/>
<图片/>
</MyControl>
按钮，画布和图像都存储在MyControl的"ControlList"中
最干净的方法是什么?
Slo
XML的示例代码
< Window x:Class =" WpfApplication.Grid"名称=此"
xmlns ="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x ="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local ="clr-命名空间:WpfApplication"
标题＝网格". mc:Ignorable ="d" xmlns:d ="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc ="http://schemas.openxmlformats.org/markup-compatibility/2006" d:DesignHeight ＝"301". d:DesignWidth ＝"438". SizeToContent =" WidthAndHeight">
< Window.Resources>
< local:BoolToVisibilityConverter x:Key ="boolToVis" />
< Style TargetType =" {x:Type TextBlock}"
x:Key ="GridBlockStyle">
< Setter Property ="VerticalAlignment"；值＝中心". />
< Setter Property ="Visibility"
值=" {Binding Path = IsSelected，
RelativeSource = {RelativeSource FindAncestor，
b AncestorType = {x:Type ListViewItem}}，
Converter = {StaticResource boolToVis}，
nbsp; b ConverterParameter = False}" />
</Style>
< Style TargetType =" {x:Type FrameworkElement}
x:Key =" GridEditStyle">
< Setter Property ="VerticalAlignment"；值＝中心". />
< Setter Property ="Visibility"
值=" {Binding Path = IsSelected，
RelativeSource = {RelativeSource FindAncestor，
b AncestorType = {x:Type ListViewItem}}，
Converter = {StaticResource boolToVis}，
nbsp; b ConverterParameter = True}" />
</Style>
</Window.Resources>
< Grid Height =" {Binding RelativeSource =
{RelativeSource AncestorType = {x:Type窗口}}，路径=高度，
Converter = {local:DebugBinding}}>
< ListView Margin ="0,0,0,0&"名称="ListView1"； ItemsSource =
< {Binding ElementName = This，Path = MyProperty}" >
< ListView.View>
< GridView>
< GridViewColumn Header ="display" DisplayMemberBinding =""{Binding display}">
</GridViewColumn>
< GridViewColumn Header =已许可" DisplayMemberBinding =""{已绑定绑定}">
</GridViewColumn>
< GridViewColumn Header ="client_address" >
b < GridViewColumn.CellTemplate>
nbsp; bsp < DataTemplate>
nbsp; bsp < Grid HorizontalAlignment =拉伸">
nbsp; bsp < TextBlock Text =" {Binding Path = client_address}"
nbsp; bsp 样式=""{StaticResource GridBlockStyle}"/>
nbsp; bsp < ComboBox SelectedValue =< {Binding Id}"
nbsp; bsp ItemsSource =""{绑定 ElementName = This，Path = obj}"
nbsp; bsp DisplayMemberPath ="client_address"； SelectedValuePath ="Id"；
nbsp; bsp 样式=""{StaticResource GridEditStyle}>
nbsp; bsp </ComboBox>
nbsp; bsp </Grid>
nbsp; bsp </DataTemplate>
b </GridViewColumn.CellTemplate>
</GridViewColumn>
< GridViewColumn Header ="local_library"； DisplayMemberBinding =""{Binding Path = local_library}">
</GridViewColumn>
< GridViewColumn Header =更新">
b < GridViewColumn.CellTemplate>
nbsp; bsp < DataTemplate>
nbsp; bsp <按钮名称=更新"；内容=更新"；点击="Update_Click" ></Button>
nbsp; bsp </DataTemplate>
b </GridViewColumn.CellTemplate>
</GridViewColumn>
</GridView>
</ListView.View>
</ListView>
</Grid>
</Window>
代码隐藏示例
使用系统；
使用System.Collections.Generic;
使用System.Linq;
使用System.Text;
使用System.Windows;
使用System.Windows.Controls;
使用System.Windows.Data;
使用System.Windows.Documents;
使用System.Windows.Input;
使用System.Windows.Media;
使用System.Windows.Media.Imaging;
使用System.Windows.Shapes;
使用System.Collections;
使用System.Data;
命名空间WpfApplication
{
公共局部类Grid:Window
{
公共Grid()
{
InitializeComponent();
_obj = Connection.BindCombo();
ListView1.ItemsSource = MyProperty;
}
私有列表< Display> _obj = null;
公共列表< Display> obj {get {return _obj; }}
公共列表< Display> MyProperty {get {return Connection.BindDisplay(); }}
私有void Update_Click(对象发送者，RoutedEventArgs e)
{
ListViewItem lvi = GetDependencyObjectFromVisualTree(e.OriginalSource作为DependencyObject，typeof(ListViewItem))作为ListViewItem;
}
私有DependencyObject GetDependencyObjectFromVisualTree(DependencyObject startObject，Type type)
{
//迭代可视树以获取此控件的父级(ItemsControl)
DependencyObject parent = startObject;
while(parent！= null)
{
如果(type.IsInstanceOfType(parent))
休息；
其他
parent = VisualTreeHelper.GetParent(parent);
}
返回父母；
}
}
公共类BoolToVisibilityConverter:IValueConverter
{
公共对象Convert(对象值，类型为targetType，
对象参数，System.Globalization.CultureInfo文化)
{
bool param = bool.Parse(参数为字符串);
bool val =(bool)value;
return val == param?
Visibility.Visible:Visibility.Hidden;
}
公共对象ConvertBack(对象值，类型为targetType，
对象参数，System.Globalization.CultureInfo文化)
{
抛出新的NotImplementedException();
}
}
}
Hey,
I want to set a list of FrameworkElements in my user control from xaml. Assume my class definition is:
class MyControl : UserControl
{
public List<FrameworkElement> ControlList { get; set; }
}
Then I want to be able to do something like this in xaml:
<MyControl >
<Button/>
<Canvas/>
<Image/>
</MyControl >
Where the button, canvas, and image are all stored in 'ControlList' on MyControl
Whats the cleanest way to do this?
Slo
Sample code for XML
<Window x:Class="WpfApplication.Grid" Name="This"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="clr-namespace:WpfApplication"
Title="Grid" mc:Ignorable="d" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" d:DesignHeight="301" d:DesignWidth="438" SizeToContent="WidthAndHeight">
<Window.Resources>
<local:BoolToVisibilityConverter x:Key="boolToVis" />
<Style TargetType="{x:Type TextBlock}"
x:Key="GridBlockStyle">
<Setter Property="VerticalAlignment" Value="Center" />
<Setter Property="Visibility"
Value="{Binding Path=IsSelected,
RelativeSource={RelativeSource FindAncestor,
AncestorType={x:Type ListViewItem}},
Converter={StaticResource boolToVis},
ConverterParameter=False}" />
</Style>
<Style TargetType="{x:Type FrameworkElement}"
x:Key="GridEditStyle">
<Setter Property="VerticalAlignment" Value="Center" />
<Setter Property="Visibility"
Value="{Binding Path=IsSelected,
RelativeSource={RelativeSource FindAncestor,
AncestorType={x:Type ListViewItem}},
Converter={StaticResource boolToVis},
ConverterParameter=True}" />
</Style>
</Window.Resources>
<Grid Height="{Binding RelativeSource =
{RelativeSource AncestorType={ x:Type Window}}, Path =Height,
Converter={local:DebugBinding }}">
<ListView Margin="0,0,0,0" Name="ListView1" ItemsSource=
"{Binding ElementName=This, Path=MyProperty}" >
<ListView.View>
<GridView>
<GridViewColumn Header="display" DisplayMemberBinding="{Binding display}">
</GridViewColumn>
<GridViewColumn Header="licensed" DisplayMemberBinding="{Binding licensed}">
</GridViewColumn>
<GridViewColumn Header="client_address" >
<GridViewColumn.CellTemplate>
<DataTemplate>
<Grid HorizontalAlignment="Stretch">
<TextBlock Text="{Binding Path=client_address}"
Style="{StaticResource GridBlockStyle}"/>
<ComboBox SelectedValue="{Binding Id}"
ItemsSource="{Binding ElementName=This,Path = obj}"
DisplayMemberPath="client_address" SelectedValuePath="Id"
Style="{StaticResource GridEditStyle}">
</ComboBox>
</Grid>
</DataTemplate>
</GridViewColumn.CellTemplate>
</GridViewColumn>
<GridViewColumn Header="local_library" DisplayMemberBinding="{Binding Path=local_library}">
</GridViewColumn>
<GridViewColumn Header="Update">
<GridViewColumn.CellTemplate>
<DataTemplate>
<Button Name="Update" Content="Update" Click="Update_Click" ></Button>
</DataTemplate>
</GridViewColumn.CellTemplate>
</GridViewColumn>
</GridView>
</ListView.View>
</ListView>
</Grid>
</Window>
Sample code in Code Behind
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;
using System.Collections;
using System.Data;
namespace WpfApplication
{
public partial class Grid : Window
{
public Grid()
{
InitializeComponent();
_obj = Connection.BindCombo();
ListView1.ItemsSource = MyProperty;
}
private List<Display> _obj = null;
public List<Display> obj { get { return _obj; } }
public List<Display> MyProperty { get { return Connection.BindDisplay(); } }
private void Update_Click(object sender, RoutedEventArgs e)
{
ListViewItem lvi = GetDependencyObjectFromVisualTree(e.OriginalSource as DependencyObject, typeof(ListViewItem)) as ListViewItem;
}
private DependencyObject GetDependencyObjectFromVisualTree(DependencyObject startObject, Type type)
{
//Iterate the visual tree to get the parent(ItemsControl) of this control
DependencyObject parent = startObject;
while (parent != null)
{
if (type.IsInstanceOfType(parent))
break;
else
parent = VisualTreeHelper.GetParent(parent);
}
return parent;
}
}
public class BoolToVisibilityConverter : IValueConverter
{
public object Convert(object value, Type targetType,
object parameter, System.Globalization.CultureInfo culture)
{
bool param = bool.Parse(parameter as string);
bool val = (bool)value;
return val == param ?
Visibility.Visible : Visibility.Hidden;
}
public object ConvertBack(object value, Type targetType,
object parameter, System.Globalization.CultureInfo culture)
{
throw new NotImplementedException();
}
}
}
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