In C#, Image provides abstract base class with functions for classes derived from Bitmap and Metafile, which means it is more general. When we use ("xxx"), we create a derived class entity of Image, so I use Image as a parameter, not Bitmap or something like that.
The picture is in the middle of the string conversion with the help of MemorySteam and Byte arrays. Below is the FormatChange class I wrote, which converts the two into each other. Of course, this also includes the mutual conversion between the picture and the Byte[] array.
class FormatChange
{
public static string ChangeImageToString(Image image)
{
try
{
MemoryStream ms = new MemoryStream();
(ms, );
byte[] arr = new byte[];
= 0;
(arr, 0, (int));
();
string pic = Convert.ToBase64String(arr);
return pic;
}
catch (Exception)
{
return "Fail to change bitmap to string!";
}
}
public static Image ChangeStringToImage(string pic)
{
try
{
byte[] imageBytes = Convert.FromBase64String(pic);
//Read in MemoryStream object MemoryStream memoryStream = new MemoryStream(imageBytes, 0, );
(imageBytes, 0, );
//Convert to picture Image image = (memoryStream);
return image;
}
catch (Exception)
{
Image image = null;
return image;
}
}
}