SharePoint: Copy document from one document library to file system programmatically

In this post I will explained how we can programmatically copy documents from one document library to file system.

Create a User interface as shown below and add the code snippet

protected void BtnSave_Click(object sender, EventArgs e)

        {

            try

            {

                SPSite oSite = SPContext.Current.Site;

                SPWeb oWeb = oSite.RootWeb;

                   

                CopyDocToFileSystem(oWeb, txtSourceLib.Text, txtLocation.Text);

                lblMsg.Text = " sucessfully copied";

                     

            }

            catch (Exception ex)

            { }

           

        }

        public void CopyDocToFileSystem(SPWeb oWeb, string sourceDocLib, string destFilePath)

        {

            SPFolder oSourceDocLibraryFolder = oWeb.GetFolder(sourceDocLib);

            SPFileCollection oFileCol = oSourceDocLibraryFolder.Files;

            foreach (SPFile oFile in oFileCol)

            {

                byte[] b = oFile.OpenBinary();

                FileStream oFileStream = new FileStream(destFilePath + "\\" + oFile.Name, FileMode.Create, FileAccess.ReadWrite);

                BinaryWriter oBinaryWriter = new BinaryWriter(oFileStream);

                oBinaryWriter.Write(b);

                oBinaryWriter.Close();

            }

        }