Question

我的文件夹中有一些pdf，比如Data / PDF / abc.pdf。

我正在尝试使用以下代码打开PDF：

private async void LaunchPDFNew(string name)
        {
            string imageFile = @"Data/PDF/"+name+".pdf";

            // Get the image file from the package's image directory
            var file = await Windows.ApplicationModel.Package.Current.InstalledLocation.GetFileAsync(imageFile);
            if (file != null)
            {
                bool success = await Windows.System.Launcher.LaunchFileAsync(file, options);
                if (success)
                {
                    // File launched
                    Debug.WriteLine("File Launched");
                }
                else
                {
                    // File launch failed
                    Debug.WriteLine("File Launched Failed");
                }
            }
            else
            {
                // Could not find file
                Debug.WriteLine("Could not find the file");
            }
        }

它给了我错误：

A first chance exception of type 'System.ArgumentException' occurred in mscorlib.ni.dll
An exception of type 'System.ArgumentException' occurred in mscorlib.ni.dll and wasn't handled before a managed/native boundary

我已尝试使用以下链接中给出的解决方案

Launching PDF reader on windows phone 8

但他们都没有工作。如何解决这个问题？

Answer 1

对于那些无法打开PDF的人。

1）确定一个名为＆＃34; abc.pdf＆＃34;的文件。在项目中，将Build Action设置为Content，将Copy to Output Directory设置为Copy for newer）

2）如果pdf文件在目录中，则使用\而不是/，所以

string file = @"Data/PDF/"+name+".pdf";

应该是

string file = @"Data\PDF\"+name+".pdf";

3）最后使用这个：

private async void LaunchPDF(string name)
        {
            string file = @"Data\PDF\"+name+".pdf";

            // Get the image file from the package's image directory
            var file = await Windows.ApplicationModel.Package.Current.InstalledLocation.GetFileAsync(imageFile);
            if (file != null)
            {
                bool success = await Windows.System.Launcher.LaunchFileAsync(file);
                if (success)
                {
                    // File launched
                    Debug.WriteLine("File Launched");
                }
                else
                {
                    // File launch failed
                    Debug.WriteLine("File Launched Failed");
                }
            }
            else
            {
                // Could not find file
                Debug.WriteLine("Could not find the file");
            }
        }

PDF无法在WP8设备上打开

1 个答案: