如何在数据库中绑定wpf类型字节的Tiff图像？ [英] How to Bind Tiff Image of Type Byte in wpf from Database?

问题描述

嗨


我使用Tiff图像作为字节值插入数据库。它已成功插入但当我尝试使用BitmapImage绑定字节值时显示错误参数无效。



代码：

Hi
I am using a Tiff image to insert as Byte value in database.It is successfully inserted but when I am trying to bind the byte value using BitmapImage it showing error "Parameter is not valid".

Code:

DataTable dataTable = ds.Tables[0];
              BitmapImage image = null;
              MemoryStream stream = null;
             foreach (DataRow row in dataTable.Rows)
            {
            byte[] blob = (byte[])row["FileInByte"];
            
            stream = new MemoryStream(blob);
            stream.Seek(0, SeekOrigin.Begin);
            System.Drawing.Image img = System.Drawing.Image.FromStream(stream,false,false);//Error at this line
            image = new BitmapImage();
            image.BeginInit();
            MemoryStream ms = new MemoryStream();
            img.Save(ms, System.Drawing.Imaging.ImageFormat.Bmp);
            ms.Seek(0, SeekOrigin.Begin);
            image.StreamSource = ms;
            image.StreamSource.Seek(0, SeekOrigin.Begin);
            image.EndInit();
}

谢谢

Thanks

推荐答案

我按照解决方案制定了，

Hi,

I worked out following solution,

DataTable dataTable = ds.Tables[0];
BitmapImage image = null;
MemoryStream stream = null;
foreach (DataRow row in dataTable.Rows)
{
   byte[] blob = (byte[])row["FileInByte"];
            
   stream = new MemoryStream(blob);
   image = new BitmapImage();
   image.BeginInit();
   image.StreamSource = stream;
   image.EndInit();
   
   // Now assign "image" as source for and Image element. It works!!!
   // For example, consider you have placed an image named LogoImage in your form or window,
   // assign source like following
   
   LogoImage.Source = image;
   
}

这篇关于如何在数据库中绑定wpf类型字节的Tiff图像？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！