在 FlipView Windows 应用商店中的按钮中绑定图像 [英] bind images in buttons in a FlipView windows app store

问题描述

我是通用应用程序开发的新手，我有一个每页有 4 个按钮的翻转视图，每个按钮都有一个图像(总共 8 个图像)，我创建了一个包含图像列表及其 URls 的模型类:

I am new in universal app developpment,I have a flipview with 4 buttons in each page,each button has an image(8 images in total),I have created a model class that contains the list of images and their URls:

public class SampleItem
    {

    public string Image1 { get; set; }
    public string Image2 { get; set; }
    public string Image3 { get; set; }
    public string Image4 { get; set; }
    public string Image5 { get; set; }
    public string Image6 { get; set; }
    public string Image7 { get; set; }
    public string Image8 { get; set; }
}

public class ButtonImages
{
    public List<SampleItem> SampleItems { get; set; }

        public ButtonImages()
        {
            SampleItems = new List<SampleItem>();

            SampleItems.Add(new SampleItem()
            {

                Image1 = "images/1.png"
            });

            SampleItems.Add(new SampleItem()
            {

                Image2 = "images/2.png"
            });

        SampleItems.Add(new SampleItem()
        {

            Image3 = "images/3.png"
        });
        ...........//all the 8 images URIs

然后我定义名为flipview1的我的flipview:

then I define my flipview named flipview1:

<Page.Resources>
        <DataTemplate x:Key="FlipViewItemTemplate">
            <Grid >
                <Grid.ColumnDefinitions>
                    <ColumnDefinition Width="*" />
                    <ColumnDefinition Width="*" />
                </Grid.ColumnDefinitions>
                <Grid.RowDefinitions>
                    <RowDefinition Height="*" />
                    <RowDefinition Height="*" />
                </Grid.RowDefinitions>
                <Button Grid.Column="0" Grid.Row="0" >
                    <Image Source="{Binding Image1}"/>
                </Button>
                <Button Grid.Column="1" Grid.Row="0">
                    <Image Source="{Binding Image2}" />
                </Button>
                <Button Grid.Column="0" Grid.Row="1">
                    <Image Source="{Binding Image3}"/>
                </Button>
                <Button Grid.Column="1" Grid.Row="1">
                    <Image Source="{Binding Image4}"/>
                </Button>
            </Grid>
        </DataTemplate>
</Page.Resources>
<FlipView x:Name="flipView1" ItemTemplate="{StaticResource FlipViewItemTemplate}"/>

这是我尝试获取 8 个图像并将它们放在每个页面中的每个 4 个按钮中:

and this is my try to get the 8 images and put them in each 4 buttons,in each page:

 private void getimages()
            {
                List<ButtonImages> T = new List<ButtonImages>();
                ButtonImages a;
                if(true)
                {
                    a = new ButtonImages();
                    T.Add(a);
                }
                flipView1.ItemsSource = T;
            }

但我有 8 页，每页有 4 个按钮，每页一个按钮有一个图像，其他按钮是空的 :(

but I get 8 pages,each page has 4 buttons,in each page one button has an image an the others are empty :(

我已经调试了代码，并且我将 T 中的所有图像作为列表你有什么想法我该如何更正代码

I have debug the code,and I get all images in T as a list have you please any idea how can I correct the code

感谢帮助

推荐答案

首先，如果您希望每个 FlipView 页面有 4 个图像，您的 SampleItem 应该包含 4 个图像路径:

Firstly if you want 4 images per FlipView page your SampleItem should contains 4 path to images:

public class SampleItem
{
    public string Image1 { get; set; }
    public string Image2 { get; set; }
    public string Image3 { get; set; }
    public string Image4 { get; set; }
}

其次，如果您想要 2 个包含 4 个图像的页面，您应该使用 SampleItem

Secondly if you want 2 pages with 4 images you should create list with 2 objects of SampleItem

var page1 = new SampleItem()
{
    Image1 = "images/bar.png",
    Image2 = "images/cuisine.png",
    Image3 = "images/events.png",
    Image4 = ""//path to 4th image on 1st page
};
var page2 = new SampleItem()
{
    Image1 = "",//path to 1st image on 2nd page,
    Image2 = "",//path to 2nd image on 2nd page,
    Image3 = "",//path to 3rd image on 2nd page,
    Image4 = ""//path to 4th image on 2nd page
};
var pages = new List<SampleItem>()
{
    page1,
    page2
};

最后你应该为你的 FlipView 设置 ItemsSource

And finally you should set ItemsSource for your FlipView

flipView1.ItemsSoruce = pages;

您的代码无法正常工作，因为您创建了包含 8 个元素的列表，并且每个元素都只设置了一个 Image 属性.这就是为什么您得到 8 页而只显示一张图片的原因.

Your code was not working properly because you created list with 8 elements and every element has only one of Image property set. That's why you get 8 pages and only one image was displays.

顺便说一句，我已经回答了非常相似的问题(我认为这是你的问题)通用 Windows 应用中的翻转视图

Btw I already answered for very similar question (I think its yours one) flipview in a universal windows app

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