分配Seek(0，SeekOrigin.Begin); [英] assign Seek(0, SeekOrigin.Begin);

问题描述

嗨 我的代码有问题.
看看下面给出的行

 字符串目标；
FileUpload1.FileContent.Seek( 0 ，SeekOrigin.Begin);
FileUpload1.PostedFile.InputStream.Read(pic， 0 ，len); 

其中FileUpload是asp.net中的一个标签，用于上传文件.字符串目标已分配了一个jpeg文件.现在我想使用字符串目标代替Fileupload，有人可以告诉我如何使用它，或任何其他替代方法吗?
thnx

解决方案

要从fileUpload保存文件，最简单的方法是:

if(FileUpload1.HasFile)
      FileUpload1.SaveAs(target);

您必须根据需要使用正确的文件名来初始化目标.

为回应您在解决方案1中的评论，我给您更精确的解释.

我建议你:
1°)保存文件，如解决方案1中所述
2°)将已保存的ppt文件解析为jpg文件，如本链接中所述

http://stackoverflow.com/questions/2972263/ppt-slides-to-images [ ^ ]

hi i have a problem in code.
look at the lines given below

string target;
FileUpload1.FileContent.Seek(0, SeekOrigin.Begin);
FileUpload1.PostedFile.InputStream.Read(pic, 0, len);

where FileUpload is a tag in asp.net use to upload a file. the string target has assigned a jpeg file. now i want to use the string target in place of Fileupload can somebody tells me how to use it, or any alternative for that?
thnx

解决方案

For saving a file from a fileUpload, the easiest way is :

if(FileUpload1.HasFile)
      FileUpload1.SaveAs(target);

You have to initialize target with a correct filename according your needs.

In response of your comment in Solution 1, i give you somme more precise explanation.

I suggest you to :
1°) save the file like mentionned in Solution 1
2°) parse the saved ppt file in jpg file like described in this link

http://stackoverflow.com/questions/2972263/ppt-slides-to-images[^]

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