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我想将文件复制到目录并重命名为特定格式。但如果文件名已存在,则应在文件扩展名前附加 {1}、{2} 或 {3}。

我的代码重命名并复制了文件,并将其命名为我想要的格式,比如 filename.pdf,当它检查重复时,它将它重命名为 filename1.pdf。但是当它再次尝试复制时,它给出了一个错误“文件已经存在”,但我希望它把它命名为 filename02.pdf。

请有人帮助我。

这是我到目前为止编写的代码。

    {
        string fileSource, filesToCopy, target, nextTarget;

        string sourceDir = @"C:\HCP_PDFs";            

        string destinationDir = @"C:\RenamedHcpPdfs";

        DirectoryInfo di = new DirectoryInfo(destinationDir);

        // create the directory if it dosnt exist

        if (!Directory.Exists(destinationDir))
        {
            Directory.CreateDirectory(destinationDir);
        }

        foreach (string myFiles in lstBoxFilenames.Items)
        {

            filesToCopy = myFiles;
            fileSource = Path.Combine(sourceDir, filesToCopy);         

            //Extract only HCP Name by splitting , removing file Extension and removing HCP ID 
            string hcp = filesToCopy.Split('_')[0];
            string hcpCd = filesToCopy.Split('_')[1];
            string hcpID = filesToCopy.Split('_')[2];
            string hcpName = String.Format((filesToCopy.Split('_')[3]).Replace(".pdf", ""));           

            //combine the HCP ID, HCP name and date                                                
            target = Path.Combine(destinationDir, hcp + "{" + hcpCd + "~" + hcpID + "}" + hcpName + "{2013_03_14}" + ".pdf");

            // if file exists in directory then rename and increment filename by 1
            int i = +1 ;

            nextTarget = Path.Combine(destinationDir, hcp + "{" + hcpCd + "~" + hcpID + "}" + hcpName + "{2013_03_14}" + i + ".pdf");

            if (File.Exists(target))
            {
                File.Copy(fileSource, nextTarget);
                break;
            }

            //if file does not exist, rename              
            else
            {
                File.Copy(fileSource, target);
            }          
        }            
    }
4

2 回答 2

0

做这个

while(File.Exists(target)) {i++;}

现在声明你的目标路径。

于 2013-03-26T16:55:47.877 回答
0

尝试这个 :

string target = Path.Combine(destinationDir, hcp + "{" + hcpCd + "~" + hcpID + "}" + hcpName + "{2013_03_14}.pdf");
while(File.Exists(target))
        {
            i++;
            target = Path.Combine(destinationDir, hcp + "{" + hcpCd + "~" + hcpID + "}" + hcpName + "{2013_03_14}" + i + ".pdf");

        }

File.Copy(fileSource, target);
break;
于 2013-03-27T11:06:52.130 回答