Display the file from folder in asp.net using c#

Question

In D Folder files are stored with the name of course name.
In D folder list of files as follows RM (file)

I have one design page as follows Course name
Dropdownlist (In dropdownlist all course will be displayed)RM(Course)

Then i have one Button Show Button.
When i select the Course (RM). i want to display the RM file content details.

For that how can i do using c#. Display files from folder using c#.

Kunal Vaishya · Answer

try this below code protected void Page_Load(object sender EventArgs e) { if (!IsPostBack) { try { //Pass the Grid view for to display files. DisplayFiles(ref gvFiles); } catch (Exception ex) { } } } public DataTable GetAllFilesFromDirectory(string sourcePath) { System.Data.DataTable dtFiles = new System.Data.DataTable(); try { if ((Directory.Exists(sourcePath))) { dtFiles.Columns.Add(new System.Data.DataColumn(Name)); dtFiles.Columns.Add(new System.Data.DataColumn(Date)); dtFiles.Columns.Add(new System.Data.DataColumn(Size)); dtFiles.Columns[Size].DataType = typeof(double); dtFiles.Columns.Add(new System.Data.DataColumn(ConvertedSize)); DirectoryInfo dir = new DirectoryInfo(sourcePath); foreach (FileInfo file in dir.GetFiles(*.*).Where(f => !f.Attributes.HasFlag(FileAttributes.Hidden)).OrderBy(f => f.Name.ToUpper())) { System.Data.DataRow drFile = dtFiles.NewRow(); drFile[Name] = file.Name; drFile[Date] = file.CreationTime.ToString(MM/dd/yyyy HH:mm); drFile[Size] = file.Length; drFile[ConvertedSize] = CalculateFileSize(file.Length); dtFiles.Rows.Add(drFile); } } } catch (Exception ex) { } return dtFiles; } public void DisplayFiles(ref GridView gv) { string PathDir =Your Path; string strDirecoryPath = Server.MapPath(~ + PathDir + /); try { if (Directory.Exists(strDirecoryPath)) { DataTable dtFiles = GetAllFilesFromDirectory(strDirecoryPath); if (dtFiles != null && dtFiles.Rows.Count > 0) { gvFiles.DataSource = dtFiles; gvFiles.DataBind(); } else { gvFiles.DataSource = null; gvFiles.DataBind(); } } else { gvFiles.DataSource = null; gvFiles.DataBind(); } } catch (Exception ex) { } }