将图像控件中的图像转换为字节 [英] Convert image in image control to byte

问题描述

朋友们，
我正在尝试将Asp.Net图像控件中的图像转换为字节，以将图像控件中的图像保存到数据库.
我尝试了以下代码，但无法正常工作，请帮帮我.

Hi friends,
I am trying to convert image in Asp.Net Image control to byte to save the image in image control to database.
I tried this following code but its not working please help me.

                  byte[] imagebyt = new byte[Image1.ImageUrl.Length + 1];
MemoryStream ms = new MemoryStream(imagebyt,0,imagebyt.Length);
cmd = new MySqlCommand("Insert Into db_image (Image) values (@imag)", con);
                    cmd.Parameters.AddWithValue("imag", imagebyt);

                    cmd.ExecuteNonQuery();

推荐答案

尝试一下

Try this

byte[] imagebyt = new byte[Image1.ImageUrl.FileBytes.Length+1];
                imagebyt = Image1.Imageurl.FileBytes;
MemoryStream ms = new MemoryStream(imagebyt,0,imagebyt.Length);
cmd = new MySqlCommand("Insert Into db_image (Image) values (@imag)", con);
                        cmd.Parameters.AddWithValue("imag", ms.GetBuffer());
                        
                        cmd.ExecuteNonQuery();

您的问题是您设置了字节数组的长度，但实际上并没有告诉他们将图像字节放在那里

Your problem was that you set the length of the byte array but didnt actually tell them to put your image bytes there

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