从列表框数据计算总价 [英] Calculate total price from list box data

问题描述

您好，我有一个列表框将为产品价格绑定数据.如何计算所有商品的总价?

我的电话page.xaml如下:

Hi, i had a listbox will binding the data for price of the product. How can i calculate the total price of all of it?

My phone page.xaml is as below:

<ListBox Height="650" HorizontalAlignment="Left" Margin="11,17,0,0" Name="listBox1" VerticalAlignment="Top" Width="434" >
                <ListBox.ItemTemplate>
                    <DataTemplate>
                        <StackPanel Orientation="Horizontal">
                            <TextBlock Text="{Binding ProdId}"/>
                            <TextBlock Text="{Binding ProdPrice}"/>
                        </StackPanel>
                    </DataTemplate>
                </ListBox.ItemTemplate>
</ListBox>

我想计算绑定到产品价格的文本块上的所有总价，然后将其放置到文本块中.

这是我从数据库检索数据并将其放入列表框的代码.

I want to calculate all total price that at textblock that bind to Product Price and place it to a textblock.

And this is the code i retrieve data from database and put into listbox.

public MainPage()
        {
            InitializeComponent();
            Service1Client svc = new Service1Client();
            svc.GetAllModelsCompleted += new EventHandler<GetAllModelsCompletedEventArgs>(svc_GetAllModelsCompleted);
            svc.GetAllModelsAsync();
        }
        void svc_GetAllModelsCompleted(object sender, GetAllModelsCompletedEventArgs e)
        {
            listBox1.ItemsSource = e.Result;
        }

推荐答案

请尝试事件SelectedIndexChanged，以便获取值并进行适当的计算.

问候，
T

Hi try the event SelectedIndexChanged, so as to get the value and make appropriate calculation.

Regards,
T

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