<Page

    x:Class="Textvt.MainPage"

    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

    xmlns:local="using:Textvt"

    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"

    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"

    mc:Ignorable="d">

    <Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">

        <StackPanel Background="{ThemeResource ApplicationPageBackgroundThemeBrush}" Padding="30">

            <Border BorderBrush="Azure" BorderThickness="2">

                <TextBlock x:Name="TextSource"

                           Text="我是源"

                           CanDrag="True"

                           DragStarting="Txtsource_OnDragStarting"  />

            </Border>

            <Border Margin="20" BorderBrush="Azure" BorderThickness="2"

                    AllowDrop="True" >

                <TextBlock x:Name="TextTarget" Text="目标TextBlock"

                           Drop="Txttarget_OnDrop"

                           Height="50" Width="400"

                           AllowDrop="True"

                           DragEnter="Txttarget_OnDragEnter"/>

            </Border>

        </StackPanel>

    </Grid>

</Page>

        private void Txtsource_OnDragStarting(UIElement sender, DragStartingEventArgs args)

        {

            //开始拖放

            //设置拖放文字，文字是我们点击的TextBlock

            args.Data.SetText(TextSource.Text);

        }

        private async void Txttarget_OnDrop(object sender, DragEventArgs e)

        {

            //如果有文字，那么就是把他放在要拖放的TextBlock

            bool hasText = e.DataView.Contains(StandardDataFormats.Text);

            //显示复制还是没有

            //拖动显示可以去我之前写的 http://blog.csdn.net/lindexi_gd/article/details/49757187?locationNum=2&fps=1

            e.AcceptedOperation = hasText ? DataPackageOperation.Copy : DataPackageOperation.None;

            if (hasText)

            {

                var text = await e.DataView.GetTextAsync();

                TextTarget.Text += "\n" + text;

            }

        }

        private void Txttarget_OnDragEnter(object sender, DragEventArgs e)

        {

            bool hasText = e.DataView.Contains(StandardDataFormats.Text);

            e.AcceptedOperation = hasText ? DataPackageOperation.Copy : DataPackageOperation.None;

            if (hasText)

            {

                if (e.DragUIOverride != null)

                {

                    e.DragUIOverride.Caption = "Drop here to insert text";

                }

            }

        }