我正在尝试使用 MessagingToolkit 解码 C#/ASP.NET 中的图像。我已经设法使用这个包对 qr 进行编码,但是当我尝试解码时,使用下面的代码会出现 2 个错误(在页面底部)
我相信这是因为我在上传后没有正确获取图像,但有人可以准确指出我哪里出错了。谢谢。
protected void CreateCode_OnClick(object sender, EventArgs e)
{
string path = "C:\\Users\\Wayneio\\Documents\\Visual Studio 2012\\Projects\\BAMSystem\\BAMSystem\\";
if (QRUpload.HasFiles == true)
{
FileInfo fi = new FileInfo(QRUpload.FileName);
string extA = fi.Extension;
if (extA == ".jpg" || extA == ".png")
{
QRCodeDecoder decoder = new QRCodeDecoder();
QRUpload.SaveAs(path + QRUpload.FileName);
System.Drawing.Image myImg = System.Drawing.Image.FromFile(path + QRUpload.FileName);
decoder.Decode(myImg);
}
else
{
error.Text = "You have uploaded a " + extA + " file. Please upload either a PNG or a JPG";
}
}
else
{
error.Text = "You have not uploaded an image.";
}
}
错误1:
Error 2 Argument 1: cannot convert from 'System.Drawing.Image' to 'MessagingToolkit.QRCode.Codec.Data.QRCodeImage' c:\users\wayneio\documents\visual studio 2012\Projects\BAMSystem\BAMSystem\default.aspx.cs 38 35 BAMSystem
错误2:
Error 1 The best overloaded method match for 'MessagingToolkit.QRCode.Codec.QRCodeDecoder.Decode(MessagingToolkit.QRCode.Codec.Data.QRCodeImage)' has some invalid arguments c:\users\wayneio\documents\visual studio 2012\Projects\BAMSystem\BAMSystem\default.aspx.cs 38 20 BAMSystem
PS,如果有人有关于这个 MessagingToolkit QR 包的文档,那将会很有用