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SilverLight-DataBinding-DataTemplates: 三、数据绑定 DataTemplates模板的使用（求助，没有到达实例效果，求高人指点迷津）

ylbtech-SilverLight-DataBinding-DataTemplates: 三、数据绑定 DataTemplates模板的使用

1.A, Data Templates Intro(数据模板说明)
1.B, Separating and Resuing Templates(分离和复用模板)
1.C, More Advanced Templates(更先进的模板)
1.D, Changing Items Layout(改变项目布局)

测试数据地址：http://www.cnblogs.com/ylbtech/p/3434972.html 的“1.A, Product.cs 产品类”

1.A, Data Templates Intro(数据模板说明)返回顶部

最好的方式来了解数据模板的工作原理是首先基本列表,不使用一个模板。例如,考虑这个列表框,这是先前所显示的:

<ListBox Name="lstProducts" DisplayMemberPath="ModelName"></ListBox>

你可以得到同样的效果和这个列表框,使用一个数据模板:

<ListBox Name="lstProducts">
    <ListBox.ItemTemplate>
        <DataTemplate>
            <TextBlock Text="{Binding ModelName}"></TextBlock>
        </DataTemplate>
    </ListBox.ItemTemplate>
</ListBox>

1.B, Separating and Reusing Templates(分离和重用模板)返回顶部

1,图片

1.1, 目标效果图

1.2, 实际效果图

2.1/3,[无]

2.2/3,

<Border Margin="5" BorderBrush="SteelBlue" BorderThickness="1" CornerRadius="4">   
<Grid x:Name="LayoutRoot" Background="White" Margin="3">
    <Grid.ColumnDefinitions>
        <ColumnDefinition Width="200"></ColumnDefinition>
        <ColumnDefinition Width="*"></ColumnDefinition>
    </Grid.ColumnDefinitions>
        
    <Grid Grid.Row="0" Margin="3">
        <Grid.RowDefinitions>
            <RowDefinition Height="30"></RowDefinition>
            <RowDefinition Height="*"></RowDefinition>
        </Grid.RowDefinitions>
        <Button Grid.Row="0" Name="btnSearch" Content="Get Prdouct" Margin="3"></Button>
        <ListBox Grid.Row="1" Name="lstProduct" Margin="3" HorizontalContentAlignment="Stretch" SelectionChanged="lstProduct_SelectionChanged">
            <ListBox.ItemTemplate>
                <DataTemplate>
                        <Border>
                            <Border Margin="5" BorderBrush="SteelBlue" BorderThickness="1" CornerRadius="4">
                        <Grid Margin="3">
                            <Grid.RowDefinitions>
                                <RowDefinition Height="Auto"></RowDefinition>
                                <RowDefinition Height="Auto"></RowDefinition>
                            </Grid.RowDefinitions>
                            <TextBlock Grid.Row="0" Text="{Binding ProductId}" FontWeight="Bold"></TextBlock>
                            <TextBlock Grid.Row="1" Text="{Binding ProductName}"></TextBlock>
                        </Grid>
                    </Border>
                        </Border>
                    </DataTemplate>
            </ListBox.ItemTemplate>
        </ListBox>
        </Grid>
    <Grid Grid.Row="2" Grid.Column="2" Grid.RowSpan="2"  x:Name="gridDetailProduct" Margin="3" Background="LightGray">
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto"></RowDefinition>
            <RowDefinition Height="Auto"></RowDefinition>
            <RowDefinition Height="Auto"></RowDefinition>
            <RowDefinition Height="Auto"></RowDefinition>
            <RowDefinition Height="Auto"></RowDefinition>
            <RowDefinition Height="*"></RowDefinition>
        </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="115"></ColumnDefinition>
            <ColumnDefinition Width="*"></ColumnDefinition>
        </Grid.ColumnDefinitions>
        <TextBlock Grid.Row="0" Grid.Column="0" Margin="7">Product Id:</TextBlock>
        <TextBox Grid.Row="0" Grid.Column="1" Margin="5" Text="{Binding ProductId}"></TextBox>

        <TextBlock Grid.Row="1" Grid.Column="0" Margin="7">Product Name:</TextBlock>
        <TextBox Grid.Row="1" Grid.Column="1" Margin="5" Text="{Binding ProductName}"></TextBox>

        <TextBlock Grid.Row="2" Grid.Column="0" Margin="7">Quantity Per Unit:</TextBlock>
        <TextBox Grid.Row="2" Grid.Column="1" Margin="5" Text="{Binding QuantityPerUnit}"></TextBox>

        <TextBlock Grid.Row="3" Grid.Column="0" Margin="7">Unit Price:</TextBlock>
        <TextBox Grid.Row="3" Grid.Column="1" Margin="5" Text="{Binding UnitPrice}"></TextBox>

        <TextBlock Grid.Row="4" Grid.Column="0" Margin="7">Description:</TextBlock>
        <TextBox Grid.Row="4" Grid.Column="1" Grid.RowSpan="2" Margin="5"
            Text="{Binding Description}" TextWrapping="Wrap" ></TextBox>
    </Grid>
</Grid>
</Border>

View Code

2.3/3,

using System.Windows.Controls;

using SLYlbtechApp.Access;
namespace SLYlbtechApp.DataBinding.DataTemplates
{
    public partial class SeparatingAndResuingTemplates : UserControl
    {
        public SeparatingAndResuingTemplates()
        {
            InitializeComponent();

            this.lstProduct.ItemsSource = Product.GetAll();
        }

        private void lstProduct_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {            
            this.gridDetailProduct.DataContext = this.lstProduct.SelectedItem;
        }
    }
}

View Code

3,代码摘要

<ListBox Grid.Row="1" Name="lstProduct" Margin="3" HorizontalContentAlignment="Stretch" SelectionChanged="lstProduct_SelectionChanged">
    <ListBox.ItemTemplate>
        <DataTemplate>
                <Border>
                    <Border Margin="5" BorderBrush="SteelBlue" BorderThickness="1" CornerRadius="4">
                <Grid Margin="3">
                    <Grid.RowDefinitions>
                        <RowDefinition Height="Auto"></RowDefinition>
                        <RowDefinition Height="Auto"></RowDefinition>
                    </Grid.RowDefinitions>
                    <TextBlock Grid.Row="0" Text="{Binding ProductId}" FontWeight="Bold"></TextBlock>
                    <TextBlock Grid.Row="1" Text="{Binding ProductName}"></TextBlock>
                </Grid>
            </Border>
                </Border>
            </DataTemplate>
    </ListBox.ItemTemplate>
</ListBox>

1.C, More Advanced Templates(更先进的模板) 返回顶部

1, 图片

1.1, 目标效果图

1.2, 实际效果图

2.1/3,[无]

2.2/3,

<UserControl.Resources>
    <!--数据模板 begin-->
    <DataTemplate x:Key="ProductDataTemplate">
        <Border>
            <Border Margin="5" BorderBrush="SteelBlue" BorderThickness="1" CornerRadius="4">
                <Grid Margin="3">
                    <Grid.RowDefinitions>
                        <RowDefinition Height="Auto"></RowDefinition>
                        <RowDefinition Height="Auto"></RowDefinition>
                        <RowDefinition Height="Auto"></RowDefinition>
                    </Grid.RowDefinitions>
                    <TextBlock Grid.Row="0" Text="{Binding ProductId}" FontWeight="Bold"></TextBlock>
                    <TextBlock Grid.Row="1" Text="{Binding ProductName}"></TextBlock>
                    <Image  Grid.Row="2" Source="{Binding ProductImagePath}"></Image>
                </Grid>
            </Border>
        </Border>
    </DataTemplate>
    <!--数据模板 end-->
</UserControl.Resources>
<Border Margin="5" BorderBrush="SteelBlue" BorderThickness="1" CornerRadius="4">
    <Grid x:Name="LayoutRoot" Background="White" Margin="3">
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="200"></ColumnDefinition>
            <ColumnDefinition Width="*"></ColumnDefinition>
        </Grid.ColumnDefinitions>

        <Grid Grid.Row="0" Margin="3">
            <Grid.RowDefinitions>
                <RowDefinition Height="Auto"></RowDefinition>
                <RowDefinition Height="*"></RowDefinition>
            </Grid.RowDefinitions>
            <Button Grid.Row="0" Name="btnSearch" Content="Get Prdouct" Margin="3"></Button>
            <!--ListBox 使用数据模板-->
            <ListBox Grid.Row="1" Name="lstProduct" Margin="3" HorizontalContentAlignment="Stretch" 
                        SelectionChanged="lstProduct_SelectionChanged" ItemTemplate="{StaticResource ProductDataTemplate}">
            </ListBox>
                
        </Grid>
        <Grid Grid.Row="2" Grid.Column="2" Grid.RowSpan="2"  x:Name="gridDetailProduct" Margin="3" Background="LightGray">
            <Grid.RowDefinitions>
                <RowDefinition Height="Auto"></RowDefinition>
                <RowDefinition Height="Auto"></RowDefinition>
                <RowDefinition Height="Auto"></RowDefinition>
                <RowDefinition Height="Auto"></RowDefinition>
                <RowDefinition Height="Auto"></RowDefinition>
                <RowDefinition Height="*"></RowDefinition>
            </Grid.RowDefinitions>
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="115"></ColumnDefinition>
                <ColumnDefinition Width="*"></ColumnDefinition>
            </Grid.ColumnDefinitions>
            <TextBlock Grid.Row="0" Grid.Column="0" Margin="7">Product Id:</TextBlock>
            <TextBox Grid.Row="0" Grid.Column="1" Margin="5" Text="{Binding ProductId}"></TextBox>

            <TextBlock Grid.Row="1" Grid.Column="0" Margin="7">Product Name:</TextBlock>
            <TextBox Grid.Row="1" Grid.Column="1" Margin="5" Text="{Binding ProductName}"></TextBox>

            <TextBlock Grid.Row="2" Grid.Column="0" Margin="7">Quantity Per Unit:</TextBlock>
            <TextBox Grid.Row="2" Grid.Column="1" Margin="5" Text="{Binding QuantityPerUnit}"></TextBox>

            <TextBlock Grid.Row="3" Grid.Column="0" Margin="7">Unit Price:</TextBlock>
            <TextBox Grid.Row="3" Grid.Column="1" Margin="5" Text="{Binding UnitPrice}"></TextBox>

            <TextBlock Grid.Row="4" Grid.Column="0" Margin="7">Description:</TextBlock>
            <TextBox Grid.Row="4" Grid.Column="1" Grid.RowSpan="2" Margin="5"
            Text="{Binding Description}" TextWrapping="Wrap" ></TextBox>
        </Grid>
    </Grid>
</Border>

View Code

2.3/3, 代码同上 1.B.2.3/3

3,代码摘要

3.1/2, 做这个工作,你所需要做的是定义你的数据模板在一个资源收集和给它一个键名。这里的一个例子,提取模板所示前面的示例:

<UserControl.Resources>
    <!--数据模板 begin-->
    <DataTemplate x:Key="ProductDataTemplate">
        <Border>
            <Border Margin="5" BorderBrush="SteelBlue" BorderThickness="1" CornerRadius="4">
                <Grid Margin="3">
                    <Grid.RowDefinitions>
                        <RowDefinition Height="Auto"></RowDefinition>
                        <RowDefinition Height="Auto"></RowDefinition>
                        <RowDefinition Height="Auto"></RowDefinition>
                    </Grid.RowDefinitions>
                    <TextBlock Grid.Row="0" Text="{Binding ProductId}" FontWeight="Bold"></TextBlock>
                    <TextBlock Grid.Row="1" Text="{Binding ProductName}"></TextBlock>
                    <Image  Grid.Row="2" Source="{Binding ProductImagePath}"></Image>
                </Grid>
            </Border>
        </Border>
    </DataTemplate>
    <!--数据模板 end-->
</UserControl.Resources>

3.2/2,现在你可以使用你的数据模板使用StaticResource参考:

<!--ListBox 使用数据模板-->
<ListBox Grid.Row="1" Name="lstProduct" Margin="3" HorizontalContentAlignment="Stretch" 
            SelectionChanged="lstProduct_SelectionChanged" ItemTemplate="{StaticResource ProductDataTemplate}">
</ListBox>

1.D, Changing Items Layout(改变项目布局)返回顶部

1, 图片

1.1, 目标效果图

1.2, 实际效果图

2.1/3,

xmlns:controlsToolkit="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls.Toolkit"

2.2/3,

<UserControl.Resources>
    <!--数据模板 begin-->
    <DataTemplate x:Key="ProductDataTemplate">
        <Border>
            <Border Margin="5" BorderBrush="SteelBlue" BorderThickness="1" CornerRadius="4">
                <Grid Margin="3">
                    <Grid.RowDefinitions>
                        <RowDefinition Height="Auto"></RowDefinition>
                        <RowDefinition Height="Auto"></RowDefinition>
                        <RowDefinition Height="Auto"></RowDefinition>
                    </Grid.RowDefinitions>
                    <TextBlock Grid.Row="0" Text="{Binding ProductId}" FontWeight="Bold"></TextBlock>
                    <TextBlock Grid.Row="1" Text="{Binding ProductName}"></TextBlock>
                    <Image  Grid.Row="2" Source="{Binding ProductImagePath}"></Image>
                </Grid>
            </Border>
        </Border>
    </DataTemplate>
    <!--数据模板 end-->
</UserControl.Resources>
<Border Margin="5" BorderBrush="SteelBlue" BorderThickness="1" CornerRadius="4">
    <Grid x:Name="LayoutRoot" Background="White" Margin="3">
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="200"></ColumnDefinition>
            <ColumnDefinition Width="*"></ColumnDefinition>
        </Grid.ColumnDefinitions>

        <Grid Grid.Row="0" Margin="3">
            <Grid.RowDefinitions>
                <RowDefinition Height="Auto"></RowDefinition>
                <RowDefinition Height="*"></RowDefinition>
            </Grid.RowDefinitions>
            <Button Grid.Row="0" Name="btnSearch" Content="Get Prdouct" Margin="3"></Button>                
            <!--ListBox 使用数据模板-->
            <ListBox Grid.Row="1" Name="lstProduct" Margin="3" HorizontalContentAlignment="Stretch"
                        SelectionChanged="lstProduct_SelectionChanged" ItemTemplate="{StaticResource ProductDataTemplate}">
                <ListBox.ItemsPanel>
                    <ItemsPanelTemplate>
                        <controlsToolkit:WrapPanel></controlsToolkit:WrapPanel>
                    </ItemsPanelTemplate>
                </ListBox.ItemsPanel>
            </ListBox>
                
        </Grid>
        <Grid Grid.Row="2" Grid.Column="2" Grid.RowSpan="2"  x:Name="gridDetailProduct" Margin="3" Background="LightGray">
            <Grid.RowDefinitions>
                <RowDefinition Height="Auto"></RowDefinition>
                <RowDefinition Height="Auto"></RowDefinition>
                <RowDefinition Height="Auto"></RowDefinition>
                <RowDefinition Height="Auto"></RowDefinition>
                <RowDefinition Height="Auto"></RowDefinition>
                <RowDefinition Height="*"></RowDefinition>
            </Grid.RowDefinitions>
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="115"></ColumnDefinition>
                <ColumnDefinition Width="*"></ColumnDefinition>
            </Grid.ColumnDefinitions>
            <TextBlock Grid.Row="0" Grid.Column="0" Margin="7">Product Id:</TextBlock>
            <TextBox Grid.Row="0" Grid.Column="1" Margin="5" Text="{Binding ProductId}"></TextBox>

            <TextBlock Grid.Row="1" Grid.Column="0" Margin="7">Product Name:</TextBlock>
            <TextBox Grid.Row="1" Grid.Column="1" Margin="5" Text="{Binding ProductName}"></TextBox>

            <TextBlock Grid.Row="2" Grid.Column="0" Margin="7">Quantity Per Unit:</TextBlock>
            <TextBox Grid.Row="2" Grid.Column="1" Margin="5" Text="{Binding QuantityPerUnit}"></TextBox>

            <TextBlock Grid.Row="3" Grid.Column="0" Margin="7">Unit Price:</TextBlock>
            <TextBox Grid.Row="3" Grid.Column="1" Margin="5" Text="{Binding UnitPrice}"></TextBox>

            <TextBlock Grid.Row="4" Grid.Column="0" Margin="7">Description:</TextBlock>
            <TextBox Grid.Row="4" Grid.Column="1" Grid.RowSpan="2" Margin="5"
            Text="{Binding Description}" TextWrapping="Wrap" ></TextBox>
        </Grid>
    </Grid>
</Border>

View Code

2.3/3, 代码同上 1.B.2.3/3

3,代码摘要

数据模板给你非凡的控制各方面的项目演示。然而,他们不允许你改变项目组织与尊重对方。没有不管你使用的模板和样式,列表框将每个项目到一个单独的水平行和栈的每一行创建列表。你可以改变这个布局取代容器列表使用奠定了的派生。这样做,你们设置ItemsPanel财产与一块XAML,定义了面板你想使用。这个小组可以是任何类,来源于系统windows控制面板,包括一个自定义布局容器实现你自己的专业布局逻辑。

以下使用WrapPanel从Silverlight Toolkit(http://www.codeplex.com/Silverlight),这是在第三章描述。它安排项目从左到右的多个行:

<!--ListBox 使用数据模板-->
<ListBox Grid.Row="1" Name="lstProduct" Margin="3" HorizontalContentAlignment="Stretch"
            SelectionChanged="lstProduct_SelectionChanged" ItemTemplate="{StaticResource ProductDataTemplate}">
    <ListBox.ItemsPanel>
        <ItemsPanelTemplate>
            <controlsToolkit:WrapPanel></controlsToolkit:WrapPanel>
        </ItemsPanelTemplate>
    </ListBox.ItemsPanel>
</ListBox>

1.E, 参考资料返回顶部

[Silverlight.3.高级编程(C#篇)].Apress.Pro.Silverlight.3.in.C.Sharp.Oct.2009

作者：ylbtech
出处：http://ylbtech.cnblogs.com/
本文版权归作者和博客园共有，欢迎转载，但未经作者同意必须保留此段声明，且在文章页面明显位置给出原文连接，否则保留追究法律责任的权利。

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原文地址：https://www.cnblogs.com/ylbtech/p/3433757.html