List files in directory in order of date and type

Hi

Getting file information:
http://www.codeproject.com/KB/files/file_operations.aspx

Inserting into a data grid:
http://www.dotnetjohn.com/articles.aspx?articleid=104

using System.IO;

public class clsCompareFileInfo:IComparer
{
    public int Compare(object x, object y)
{
        FileInfo File1;

        FileInfo File2 ;

 

        File1 = (FileInfo)x;

        File2 = (FileInfo)y;

 

        Compare = DateTime.Compare(File1.LastWriteTime, File2.LastWriteTime)

    }

}
 

Then to use it&

 

DirectoryInfo dirinfo;

FileInfo[] allFiles;

 

dirinfo = new DirectoryInfo(sSelPath);

allFiles = dirinfo.GetFiles("*.xml");

Array.Sort(allFiles, new clsCompareFileInfo);

foreach FileInfo  fl in allFiles

//your code.
Next

hi  
GY1680,

Try the code within the code snippet.
I have included filter with different file extension and the output will be those files (whose extensions are filtered) with the Creation Time ( latest modified).

DirectoryInfo di = new DirectoryInfo(Server.MapPath("~/FileUploads/UploadedFiles/"));
        string[] AllowedFiles = { "jpg", "xlsx" };
        
        FileInfo[] rgFiles = null;
        ArrayList files = new ArrayList();
        ArrayList newfiles = new ArrayList();

        foreach (string extension in AllowedFiles)
        {
            rgFiles = di.GetFiles("*." + extension);
            FileInfo lastUpdatedFile = null;
            foreach (var fileName in rgFiles)
            {
                FileInfo currentFile = new FileInfo(fileName.Name);
                if (lastUpdatedFile == null || currentFile.CreationTime > lastUpdatedFile.CreationTime)
                {
                    lastUpdatedFile = currentFile;
                }
            }
            files.AddRange(new FileInfo[] { (FileInfo)lastUpdatedFile });
        }
        rgFiles = (FileInfo[])files.ToArray(typeof(FileInfo));

        TableRow tr = new TableRow();
        TableCell td = new TableCell();
        TableCell td2 = new TableCell();
        TableCell td3 = new TableCell();

        //The rest, you can use your logic and show what ever details you want
        //............
        //...........
        //............
        //.........

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maheshsnkr;

Tried a variation of your code, but it excepts after the file.createddate because it has the date at 12/31/1600 for some reason.  I'm not sure where it's being thrown off, but with my old code the file date was picked up ok.  It goes until "td3.Text = fi.Length.ToString("#,#") + " bytes";" and then says it can't find the file specified.

anv;

I'd like to try your suggestion as well, but I'm assuming for "x" and "y" you're suggesting I assign a specific file to each of those variables and I'm a bit unclear how to do that with each and every file in the directory.  Please advise if you have thoughts.

rkworlds;

I've looked at both of your articles, and I understand the nature of a dataadapter, but I'm unclear as to how I would use that to list the files in a datagrid without interacting with a database.  i do not have the filenames stored in a database, nor do i wish to have them.  I'm simply looking to find all files in the directory and then list them in order of date created (preferably in descending order - but I"m sure I can figure that part out given help with the rest).

Thank you all.

    DirectoryInfo di = new DirectoryInfo("C:\\Inetpub\\Files\\");
    FileInfo[] rgFiles = di.GetFiles("*.pdf");

    ArrayList files = new ArrayList();
    ArrayList newfiles = new ArrayList();

    FileInfo lastUpdatedFile = null;
    foreach (var fileName in rgFiles)
    {
	FileInfo currentFile = new FileInfo(fileName.Name);
	if (lastUpdatedFile == null || currentFile.CreationTime > lastUpdatedFile.CreationTime)
	{
	    lastUpdatedFile = currentFile;
	}
    }
    files.AddRange(new FileInfo[] { (FileInfo)lastUpdatedFile });
    FileInfo[] rgFiles2 = (FileInfo[])files.ToArray(typeof(FileInfo));

    try
    {

	TableRow tr = new TableRow();
	TableCell td = new TableCell();
	TableCell td2 = new TableCell();
	TableCell td3 = new TableCell();

	foreach (FileInfo fi in rgFiles2)
	{
	    string File = "<a href='Files/" + fi.Name + "'>" + fi.Name + "</a>";

	    tr = new TableRow();
	    td = new TableCell();
	    td.BorderStyle = BorderStyle.Solid;
	    td.BorderWidth = 1;
	    td.Text = File;
	    td2 = new TableCell();
	    td2.BorderStyle = BorderStyle.Solid;
	    td2.BorderWidth = 1;
	    td2.Text = fi.CreationTime.ToString();
	    td3 = new TableCell();
	    td3.BorderStyle = BorderStyle.Solid;
	    td3.BorderWidth = 1;
	    td3.Text = fi.Length.ToString("#,#") + " bytes";
	    tr.Cells.Add(td);
	    tr.Cells.Add(td2);
	    tr.Cells.Add(td3);
	    tblOutputs.Rows.Add(tr);
	}
    }
    catch (Exception ex)
    {
	TableRow tr = new TableRow();
	TableCell td = new TableCell();
	td.BorderStyle = BorderStyle.Solid;
	td.BorderWidth = 1;
	td.ColumnSpan = 3;
	td.Text = "No files to display";
	tr.Cells.Add(td);
	tblOutputs.Rows.Add(tr);
    }

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