programmatically upload document library file in SharePoint 2013 with meta data using c#

string fileNameonly = Fileupload1.FileName;  // Only file name.

 private byte[] ToByteArray(Stream inputStream)
        {
            using (MemoryStream ms = new MemoryStream())
            {

                inputStream.CopyTo(ms);
                return ms.ToArray();
            }

        }

private void AddFileToDocumentLibrary(string documentLibraryUrl, string filename, string Title)
        {
            SPSecurity.RunWithElevatedPrivileges(delegate()
            {
                using (SPSite site = new SPSite(documentLibraryUrl))
                {
                    using (SPWeb web = site.OpenWeb())
                    {
                        Stream StreamImage = null;
                        if (Fileupload1.HasFile)
                        {
                            StreamImage = Fileupload1.PostedFile.InputStream;
                        }
                        byte[] file_bytes = ToByteArray(StreamImage);
                        web.AllowUnsafeUpdates = true;
                        SPDocumentLibrary documentLibrary = (SPDocumentLibrary)web.Lists["DocumentLibraryName"];
                        SPFileCollection files = documentLibrary.RootFolder.Files;
                        SPFile newFile = files.Add(documentLibrary.RootFolder.Url + "/" + filename, file_bytes, true);
                        SPList documentLibraryAsList = web.Lists["DocumentLibraryName"];
                        SPListItem itemJustAdded = documentLibraryAsList.GetItemById(newFile.ListItemAllFields.ID);
                        SPContentType documentContentType = documentLibraryAsList.ContentTypes["Document"]; //amend with your document-derived custom Content Type
                        itemJustAdded["ContentTypeId"] = documentContentType.Id;
                        itemJustAdded["Title"] = Title;
                        itemJustAdded.Update();
                        web.AllowUnsafeUpdates = false;
                    }
                }
            });
        }

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sharepoint custom attachement upload control with example

                        sharepoint custom attachement upload control with example 

Design Code:-

<table> <tr><td>

<asp:HiddenField Value="hDeleteAttachs" ID="hHiddenFields" runat="server" />

</td></tr>

<tr>

<td><span id="part1">

<SharePoint:AttachmentButton runat="server" ID="btnAttach" ControlMode="new" Text="Add Attachment">

</SharePoint:AttachmentButton> </span></td></tr>

<tr><td id='idAttachmentsRow'>

<SharePoint:AttachmentUpload runat="server" ID="uploadAttach" ControlMode="New">

</SharePoint:AttachmentUpload></td></tr>

<tr><td><SharePoint:AttachmentsField runat="server" ID="fieldAttach" ControlMode="new" FieldName="Attachments">

</SharePoint:AttachmentsField></td></tr>

</table>

<asp:Button ID="submitButton" runat="server" Text="Submit" OnClick="submitButton_Click" />

Cs Code:-

SPSite Objsite = null;

SPWeb Objweb = null;

SPSite noprevsite = null;

SPWeb noprevweb = null;

SPList Olist = null;

SPListItem Osplistitem = null;

protected void Page_Load(object sender, EventArgs e)

{

noprevsite = SPContext.Current.Site;

noprevweb = noprevsite.OpenWeb();

SPSecurity.RunWithElevatedPrivileges(delegate()

{

Objsite = new SPSite(noprevsite.ID);

Objweb = Objsite.OpenWeb(noprevweb.ID);

Objweb.AllowUnsafeUpdates = true;

Olist = Objweb.Lists["Users"];

btnAttach.ListId = Olist.ID;

uploadAttach.ListId = Olist.ID;

fieldAttach.ListId = Olist.ID;

Osplistitem = Olist.Items.Add();

});

}

protected void submitButton_Click(object sender, EventArgs e)

{

SPWeb mySite = SPContext.Current.Web;

SPList myList = mySite.Lists["Users"];

SPListItem myListItem = myList.Items.Add();

myListItem["Title"] = "myTitle";

if (HttpContext.Current.Request.Files.Count > 0)

{

HttpFileCollection uploads = HttpContext.Current.Request.Files;

SPAttachmentCollection attachments;

for (int i = 0; i < uploads.Count; i++)

{

Stream fs = uploads[i].InputStream;

byte[] fileContents = new byte[fs.Length];

fs.Read(fileContents, 0, (int)fs.Length);

fs.Close();

attachments = myListItem.Attachments;

string fileName = Path.GetFileName(uploads[i].FileName);

attachments.Add(fileName, fileContents);

}

myListItem.Update();

}

}

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