SharePoint 2013 Hosting – HostForLIFE.eu :: Download a File from SharePoint Document Library

In this blog, you will learn how to download a file from the SharePoint Document Library. First, you need to write a SharePoint file in your ASP.NET application server with the help of the CopyStream Method. Once you write the SharePoint file in the ASP.NET application server, then the user can download the file easily with the help of the Response.TransmitFile. Here is the complete code to download a file from Sharepoint:

protected void DownloadFile(object sender, EventArgs e) {  
    try {  
        string filePath = (sender as LinkButton).CommandArgument;  
        //SharePoint Credentials  
        string username = "sharepoint_user";  
        string password = "sharepoint_password";  
        var securePassword = new SecureString();  
        foreach(char c in password) {  
            securePassword.AppendChar(c);  
        }  
        var onlineCredentials = new NetworkCredential(username, password, "domain");  
        ClientContext clientContext = new ClientContext(filePath);  
        var url = string.Format("{0}", filePath);  
        string userRoot = System.Environment.GetEnvironmentVariable("USERPROFILE");  
        string downloadFolder = Path.Combine(Environment.ExpandEnvironmentVariables("%USERPROFILE%"), "Downloads");  
        WebRequest request = WebRequest.Create(new Uri(url, UriKind.Absolute));  
        request.Credentials = onlineCredentials;  
        WebResponse response = request.GetResponse();  
        Stream fs = response.GetResponseStream() as Stream;  
        using(FileStream localfs = System.IO.File.OpenWrite(Server.MapPath("~/Claim_Documents/") + "/" + Path.GetFileName(filePath))) {  
            CopyStream(fs, localfs);  
        }  
        string filename = Path.GetFileName(filePath);  
        Response.ContentType = "application/octet-stream";  
        Response.AppendHeader("Content-Disposition", "attachment;filename=" + filename);  
        string aaa = Server.MapPath("~/Claim_Documents/" + filename);  
        Response.TransmitFile(Server.MapPath("~/Claim_Documents/" + filename));  
        Response.End();  
    } catch (Exception ex) {  
        lblmsg.Text = ex.Message;  
    }  
}

protected void DownloadFile(object sender, EventArgs e) {

try {

string filePath = (sender as LinkButton).CommandArgument;

//SharePoint Credentials

string username = "sharepoint_user";

string password = "sharepoint_password";

var securePassword = new SecureString();

foreach(char c in password) {

securePassword.AppendChar(c);

}

var onlineCredentials = new NetworkCredential(username, password, "domain");

ClientContext clientContext = new ClientContext(filePath);

var url = string.Format("{0}", filePath);

string userRoot = System.Environment.GetEnvironmentVariable("USERPROFILE");

string downloadFolder = Path.Combine(Environment.ExpandEnvironmentVariables("%USERPROFILE%"), "Downloads");

WebRequest request = WebRequest.Create(new Uri(url, UriKind.Absolute));

request.Credentials = onlineCredentials;

WebResponse response = request.GetResponse();

Stream fs = response.GetResponseStream() as Stream;

using(FileStream localfs = System.IO.File.OpenWrite(Server.MapPath("~/Claim_Documents/") + "/" + Path.GetFileName(filePath))) {

CopyStream(fs, localfs);

}

string filename = Path.GetFileName(filePath);

Response.ContentType = "application/octet-stream";

Response.AppendHeader("Content-Disposition", "attachment;filename=" + filename);

string aaa = Server.MapPath("~/Claim_Documents/" + filename);

Response.TransmitFile(Server.MapPath("~/Claim_Documents/" + filename));

Response.End();

} catch (Exception ex) {

lblmsg.Text = ex.Message;

}

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This entry was posted by Peter on April 16, 2020 at 3:28 am, and is filed under European SharePoint 2013 Hosting. Follow any responses to this post through RSS 2.0. Both comments and pings are currently closed.

SharePoint 2013 Hosting – HostForLIFE.eu :: Download a File from SharePoint Document Library

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