How to update new file in Document Library and Meta information should be same as previous file?

Question

I am currently working with Document Library. And I am using Custom solution for add and remove documents in the Library. My custom page has following options to store a document in the Library.

When I upload file with meta information in the Library and I am only able to update Meta information only for that item.

I don't know how upload new file for the same item. please help me if anyone know about this........

Please provide code for solve this problem.......

Answer 1

You can check the file.Exists property. The usage is as below:

using (SPSite site = new SPSite("http://server/site"))
using (SPWeb web = site.OpenWeb())
{
  SPFile file = web.GetFile("/site/doclib/folder/filename.ext");
  if (file.Exists)
  {
    //update only metadata
  }
  else
  { 
    //your original code to upload file
  }
}

Answer 2

For document library, upload = New Item action & Updating metadata = Edit Item. So you need to capture the new item action, get the related item ID and call the update action for updating metadata.