打开控件程序，修改构造函数。将PDF 文件传入控件并进行加载。
using System.Windows.Forms;
namespace WpfPDFReader
{
public partial class AdobeReaderControl : UserControl
{
public AdobeReaderControl(string fileName)
{
InitializeComponent();
this.axAcroPDF1.LoadFile(fileName);
}
}
}
namespace WpfPDFReader
{
public partial class AdobeReaderControl : UserControl
{
public AdobeReaderControl(string fileName)
{
InitializeComponent();
this.axAcroPDF1.LoadFile(fileName);
}
}
}
到此用户控件就基本完成了，下面开始WPF 部分的开发。
WPF
由于要将上面的WinForm 控件加载到WPF 程序中，所以先要为WPF 添加WindowsFormsIntegration。
打开XAML 在<Grid> 中添加Button 和WindowsFormsHost 控件，其中Button 用来启动文件目录窗口，从中选择要浏览的PDF文件；WindowsFormsHost 则用于嵌入WinForm 控件。
<Window x:Class="WpfPDFReader.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="WPF PDF Reader" Height="350" Width="525">
<Grid>
<Button Content="Open File" Click="Button_Click" Width="100" Height="30"
VerticalContentAlignment="Center" VerticalAlignment="Top"
Margin="0,10,0,0"/>
<WindowsFormsHost x:Name="winFormHost" Margin="0,46,0,0" />
</Grid>
</Window>
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="WPF PDF Reader" Height="350" Width="525">
<Grid>
<Button Content="Open File" Click="Button_Click" Width="100" Height="30"
VerticalContentAlignment="Center" VerticalAlignment="Top"
Margin="0,10,0,0"/>
<WindowsFormsHost x:Name="winFormHost" Margin="0,46,0,0" />
</Grid>
</Window>
下面来完成Button 点击事件，将通过OpenFileDialog 选择的PDF 文件路径及名称传入AdobeReaderControl 用户控件中，并将该控件添加到WindowsFormsHost。
private string openFileName;
private OpenFileDialog openFileDialog;
private void Button_Click(object sender, RoutedEventArgs e)
{
openFileDialog = new OpenFileDialog();
openFileDialog.DefaultExt = "pdf";
openFileDialog.Filter = "pdf files (*.pdf)|*.pdf";
DialogResult result = openFileDialog.ShowDialog();
if (result == System.Windows.Forms.DialogResult.OK)
{
openFileName = openFileDialog.FileName;
AdobeReaderControl pdfCtl = new AdobeReaderControl(openFileName);
winFormHost.Child = pdfCtl;
}
else
{
return;
}
}
private OpenFileDialog openFileDialog;
private void Button_Click(object sender, RoutedEventArgs e)
{
openFileDialog = new OpenFileDialog();
openFileDialog.DefaultExt = "pdf";
openFileDialog.Filter = "pdf files (*.pdf)|*.pdf";
DialogResult result = openFileDialog.ShowDialog();
if (result == System.Windows.Forms.DialogResult.OK)
{
openFileName = openFileDialog.FileName;
AdobeReaderControl pdfCtl = new AdobeReaderControl(openFileName);
winFormHost.Child = pdfCtl;
}
else
{
return;
}
}
F5看下效果，点击“Open File” 选择一个PDF ，这样一个简单的WPF PDF Reader 就完成了。
