如何将图像转换为字符串 [英] How to convert image to string

问题描述

HI，

我试图在C-Sharp，asp.net中将图像转换为字符串，并在登录页面中检查用户名和图像列，请向我发送fileuplod编码的完整信息.

在这里，我添加了编码，让我知道错误在哪里，并尽快纠正我.

I tried to convert image to string in C-Sharp ,asp.net and also check the username and image column in login page please sent me condition of fileuplod coding fully.

Here I Added my coding let me where is error and rectify me ASAP.

if (TextBox1.Text !=  FileUpload1.PostedFile.FileName)
      {
          Response.Redirect("default.aspx");

推荐答案

此函数将BMP转换为String

This function convert BMP to String

public string ConvertImage(Bitmap tempBitmap)
{
MemoryStream objStream = new MemoryStream();
tempBitmap.Save(objStream, ImageFormat.Jpeg);
return Convert.ToBase64String(objStream.ToArray());
}

以及下面如何调用上面的函数

and how you call above function is mention below

public void convert_BMP_into_String()
{
Bitmap obj_Bitmap = new Bitmap(@"C:\temp.jpg");
string temp_String = ConvertImage(obj_Bitmap);
StreamWriter sw = new StreamWriter(@"C:\temp.text", false);
sw.Write(temp_String);
sw.Close();
}

[ ^ ]和 Convert-Image-binary-format [^ ]

http://www.dailycoding.com/Posts/convert_image_to_base64_string_and_base6464_string_to_image.aspx [ http://social.msdn.microsoft.com/Forums/zh/csharpgeneral/thread/ad34be7a-0fbf-4385-a79f-6ee43bba4d29 [

http://waleedelkot.blogspot.com/2009/08/how-to-convert-image-to-string-using-c.html[^]



http://www.dailycoding.com/Posts/convert_image_to_base64_string_and_base64_string_to_image.aspx[^]


http://social.msdn.microsoft.com/Forums/en/csharpgeneral/thread/ad34be7a-0fbf-4385-a79f-6ee43bba4d29[^]

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