如何使用wpf（c＃）存储图像并从ms访问中检索 [英] how to store images and retrieving from ms access using wpf(c#)

问题描述

嗨...

我使用来自网络摄像头的wpf将图像存储为ms访问的ole对象类型。存储的图像如下：

Hi...
I am storing images as ole object type in ms access using wpf from webcam. Am stored image as like:

byte[] FileBytes = null;
                string imgpath = "PatientsPhotos/" + lbl_patientID.Content.ToString() + ".jpg";
                FileStream fs = new FileStream(imgpath,System.IO.FileMode.Open,System.IO.FileAccess.Read);
                BinaryReader BR = new BinaryReader(fs);
                long allbytes = new FileInfo(imgpath).Length;
                FileBytes = BR.ReadBytes((Int32)allbytes);

这里lbl_patientID.Content是图像的名称。

现在我如何才能使用wpf将图像从db显示（图像控制）到图像控件中。

帮助我，谢谢你。

Here lbl_patientID.Content is name of image.
Now how can i get(display) image from db into image control using wpf only.
help me pls, Thank u.

推荐答案

查看此处的讨论：

http://stackoverflow.com/questions/2416497/converting-an-ole-image-object-from-ms-access-for-use-in-net [< a href =http://stackoverflow.com/questions/2416497/converting-an-ole-image-object-from-ms-access-for-use-in-nettarget =_ blanktitle =新窗口> ^ ]

Check the discussion here:
http://stackoverflow.com/questions/2416497/converting-an-ole-image-object-from-ms-access-for-use-in-net[^]

嗨...

创建数据表，如：

表：

Id int，图像OLE对象

在 .cs :(用于插入）

Hi...
Create data table like:
Table:
Id int, Image OLE Object
In .cs:(for insert)

//Convert img into bytes
byte[] FileBytes = null;
                string imgpath = "PatientsPhotos/" + lbl_patientID.Content.ToString() + ".jpg";
                FileStream fs = new FileStream(imgpath,System.IO.FileMode.Open,System.IO.FileAccess.Read);
                BinaryReader BR = new BinaryReader(fs);
                long allbytes = new FileInfo(imgpath).Length;
                FileBytes = BR.ReadBytes((Int32)allbytes);
                patient.imagepath = FileBytes;
Then, insert 'imagepath' into table of Image place

and retrieving imagepath from table and convert into image like below:

ImageSourceConverter imgConv = new ImageSourceConverter();
string path = ("PatientsPhotos/" + this.pt_id + ".jpg");
ImageSource imageSource = (ImageSource)imgConv.ConvertFromString(path);
                    imgVideo.Source = imageSource;

谢谢你。

Thank u.

这篇关于如何使用wpf（c＃）存储图像并从ms访问中检索的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！