Question

我试图通过<代码>DialogRes和StringBuilder节省一个文件。在提出案文后,我呼吁制定以下法典,以挽救档案:

    if (dr == DialogResult.OK)
    {

        StreamWriter sw = new StreamWriter(saveFileDialog1.FileName);

        sw.Write(sb.ToString());
        sw.Close();
    }

I tried to add the second parameter to StreamWriter as Encoding.UTF8 but since the first argument is a string rather than a Stream, it does not compile it.

我怎么能将这种浮游转换为能够把第二个参数作为编码?

其原因是,在我文本I中,有些地方有<条码>微克/代码>,但在保存文件时,如<条码>1⁄4<条码>,<条码>正在改写!

增编

Answer 1

见。

StreamWriter sw = new StreamWriter(
    new FileStream(saveFileDialog1.FileName, FileMode.Open, FileAccess.ReadWrite),
    Encoding.UTF8
);

If you want to append, use FileMode.Append instead.

您还应在<条码>上打上<>条码>。范围:

using(
    var sw = new StreamWriter(
        new FileStream(saveFileDialog1.FileName, FileMode.Open, FileAccess.ReadWrite),
        Encoding.UTF8
    )
)
{
    sw.Write(sb.ToString());
}

This will properly close and dispose the streams across all exception paths.

<><>UPDATE:

根据下文的JinThakur评论,

var sw = new StreamWriter(saveFileDialog1.FileName, false, Encoding.UTF8);

第二个参数是,<代码>StreamWriter,如果存在,是否应当附在档案中,而不是拖入。

Answer 2

有一个档案名称、附录Mode、编码的构造者。

附有适当的<条码>。它希望:

if (dr == DialogResult.OK)
{
    using (StreamWriter sw = new StreamWriter(saveFileDialog1.FileName, 
           false, Encoding.UTF8))
    {
      sw.Write(sb.ToString());
      //sw.Close();
    }
}

Answer 3

http://msdn.microsoft.com/en-us/library/f5f5x7kt.aspx” rel=“nofollow” 页: 1

I said you ought to wrap your StreamWriter in a using too, i.e.

if (dr == DialogResult.OK)
{
    using(StreamWriter sw = new StreamWriter(saveFileDialog1.FileName, false, Encoding.UTF8)) {
        sw.Write(sb.ToString());
        sw.Close();
    }
}

尽管实事求是,这一胜利在这方面没有任何变化。这有效地围绕法典进行了尝试/最终确定,这样,即使当时出现了一种例外情况,理商也会清理(请打sw.Dispose()。 (有些人会说,这也意味着你不再需要<代码>。) 贴,因为处置也会照顾到这一点,但我更愿意这样做。

Answer 4

setting UTF8 encoding working with Arabic font is the best thing I did:

 using (var sw = new StreamWriter(

 new FileStream(temporaryFilePath,    
               FileMode.Create,
               FileAccess.ReadWrite), 
               Encoding.UTF8))
            {
                sw.Write(sb.ToString());
            }
 )

Answer 5

The easiest way is to use the right constructor.

StreamWriter(String, Boolean, Encoding)

采用特定的编码和缺省缓冲规模,为特定档案采用一个新专级。如果档案存在,该档案可以超出文字或附后。如果档案不存在,该建筑商会创建新的档案。

C#

public StreamWriter (string path, bool append, System.Text.Encoding encoding);

友情链接