Save multiple uploaded file name in string Array using C# in ASP.Net

kavithav

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User: kavithav
Posted: on Aug 21, 2017 08:27 AM
Forum: ASP.Net Web Forms
Answer: 1
Views: 10380
Sample Code: Download

In my application i am choosing the files using file uploader suppose if i choose files those 15 files contains .mp3,.doc and .docx extensions.I need to seperate them and store them in a array.How can i do this

if (filuploadmp3.HasFile == true)
        {
            for (int i = 0; i < Request.Files.Count; i++)
            {

                HttpPostedFile PostedFile = Request.Files[i];

                if (PostedFile.ContentLength > 0)
                {

                    string FileName = System.IO.Path.GetFileName(PostedFile.FileName);

                    string extension = System.IO.Path.GetExtension(FileName);

                    if (extension == ".wav")
                    {
                        string[] arr = 

                    }
                   
                }

            }
        }

i had checked so many codes but all of them are extracted from directories but i do not use any directories i just choos the files from my desktop and click upload when i click upload i need to seperate these extensions how can i do this

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dharmend...

0 1

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ANSWER
User: dharmendr
Replied: on Aug 21, 2017 08:33 AM
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Hi kavithav,

You can't add items to an array, since it has fixed length, what you're looking for is a List<string> which can later be turned to an array using list.ToArray().

Refer the below sample.

if (filuploadmp3.HasFile == true)
{
    List<string> wavFiles = new List<string>();
    for (int i = 0; i < Request.Files.Count; i++)
    {
        HttpPostedFile postedFile = Request.Files[i];
        if (postedFile.ContentLength > 0)
        {
            string fileName = Path.GetFileName(postedFile.FileName);
            string extension = Path.GetExtension(postedFile.FileName);
            if (extension.ToLower() == ".wav")
            {
                wavFiles.Add(fileName);
            }
        }
    }
    string[] arrFinal = wavFiles.ToArray();
}

I agree, here is the link: https://www.e-iceblue.com/Introduce/spire-office-for-net-free.html

Save multiple uploaded file name in string Array using C# in ASP.Net

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