将图像文件从一个文件夹复制到另一个文件夹 [英] copying image files from one folder to another

问题描述

想知道是否有人可以指导我.
我正在尝试将图像文件从一个位置复制到另一位置.
原始文件的路径作为值存储在gridview的单元格中.

到目前为止，我尝试过的代码如下:

wonder if someone can please guide me on this.
i m trying to copy image files from one location to another.
the path of the original file is stored as a value in a cell in a gridview.

so far the code i have tried is like so:

for (i = 0; i <= GridView1.Rows.Count-1 ; i++)
           {

               string filepath = GridView1.Rows[i].Cells[2].Text;
               string filename = GridView1.Rows[i].Cells[3].Text; 
           System.IO.File.Copy(filepath, "~/" + foldername + "/" + filename);
          }

调试时，文件路径中的值为〜/carpics/back.bmp"，文件名中的值为"back.bmp"
在file.copy处，给我一个错误找不到路径〜/carpics/back.bmp"的一部分."

请帮助我解决此问题，或者如果还有其他方法可以复制图像文件.
请指导.

on debugging the value in filepath is "~/carpics/back.bmp" and The value in filename is "back.bmp"
At the file.copy it gives me an error "Could not find a part of the path ''~/carpics/back.bmp''."

Please help me fix this or if there is another way to copy image files.
please guide.
thanks.

推荐答案

asp.net使用〜或tilda字符来解析路径.不能在这里使用.

The ~ or tilda character is used by asp.net to resolve paths. It can''t be used here.

给出物理路径.不要使用相对路径.
在复制文件之前，请务必先检查if file.exists(//path)

Give the physical path. do not use relative path.
and before copy the file always check if file.exists(//path)

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