wpf 拖图片到窗体
前台代码:
<Window x:Class="拖拽.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="350" Width="525" AllowDrop="True" Drop="Photo_Drop">
<Grid>
<Border x:Name="borderImage" Width="258" Height="211" HorizontalAlignment="Right" VerticalAlignment="Top" Background="LightGreen" CornerRadius="5,5,5,5" Margin="0,88,95,0">
<Grid Height="180" Width="228">
<TextBlock Margin="18,24,19,32" HorizontalAlignment="Center" VerticalAlignment="Center" Text="Drag a photo here" Width="80" TextAlignment="Center" TextWrapping="WrapWithOverflow" FontFamily="Agency FB" FontSize="15" FontWeight="Normal"/>
<Image x:Name="photoSrc" Margin="4,4,6,6" Stretch="Fill" />
</Grid>
</Border>
</Grid>
</Window>
后台代码:
string photoPath;
private void Photo_Drop(object sender, DragEventArgs e)
{
//设置窗体的 AllowDrop="True" Drop="Photo_Drop"
//获取文件的全路径
string[] fileNames = e.Data.GetData(DataFormats.FileDrop, true) as string[];
string[] format = new string[5] {"jpg","png","gif","ico","bmp"};
if (fileNames.Length > 0)
{
string[] path = fileNames[0].Split('.');
string name = (path[path.Length - 1].ToString()).ToLower ();
//检索是否是给定的格式
bool b = format.Contains<string>(name);
if (b == true)
{
photoPath = fileNames[0];
//给image控件设置数据源
photoSrc.Source = new BitmapImage(new Uri(photoPath));
}
else
{
}
}
e.Handled = true;
}