无法传达图像 [英] unable to convet the image

问题描述

HttpPostedFileBase filel

if (filel != null)
{

    logofilename = Path.GetFileName(filel.FileName);

    logobytes = new byte[filel.ContentLength];

    logoBytestoRead = (int)filel.ContentLength;

    logonumBytesRead = 0;

    while (logoBytestoRead > 0)
    {

        int n = filel.InputStream.Read(logobytes, logoBytestoRead, logonumBytesRead);

        if (n == 0) break;

        logonumBytesRead += n;

        logoBytestoRead -= n;

    }
    objc.CompanyLogo = logobytes;
}

它的givng输出如{0,0，..... 0}

its givng output like{0,0,.....0}

推荐答案

你已经交换了 logoBytestoRead 和 logonumBytesRead 将这些变量传递给读取函数。

logonumBytesRead 是必须作为第二个参数传递的偏移量， logoBytestoRead 是数字要读取的字节必须作为第三个参数传递。



所以你传递零字节来读取，没有任何东西被读入你的缓冲区。

You have exchanged the logoBytestoRead and logonumBytesRead variables when passing them to the read function.
logonumBytesRead is the offset which must be passed as second parameter and logoBytestoRead is the number of bytes to read which must be passed as third parameter.

So you are passing zero bytes to read and nothing is read into your buffer.

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