Upload and download the file same name but different extension from the document library.

Question

HI,
     I am using the Client Object Model (Copy. Asmx ) To upload and download the file from the document library.
I am having the mandatory File ID for the each Document.
I tried to upload the the document (KIF53.txt) with File ID (KIF53) uploaded successfully.
Again I tried to Upload the document(KIF53.docx) With File ID(KIF53) its uploaded the file but it not upload the File ID in the Column
Please find the below screen shoot for the reference.

Answer 1

thanks ashish
tried 
My requirement is to create the  folder and sub folder in SharePoint document library. If already exist leave it or create the new folder and the subfolder in the Document library using client side object model
I able to check for the parent folder.
But cant able to check the subfolder in the document library.
How to check for  the sub folder in the document library?
Here is the code for the folder IsFolder alredy Exist.
private string IsFolderExist(string InputFolderName)
        string retStatus
= false.ToString();
        try
            ClientContext context
= newClientContext(Convert.ToString(ConfigurationManager.AppSettings["DocumentLibraryLink"]));
context.Credentials = CredentialCache.DefaultCredentials;
            List list
= context.Web.Lists.GetByTitle(Convert.ToString(ConfigurationManager.AppSettings["DocumentLibraryName"]));
            FieldCollection fields
= list.Fields;
            CamlQuery camlQueryForItem
= new CamlQuery();
camlQueryForItem.ViewXml = string.Format(@"<View 
Scope='RecursiveAll'>
<Query>
                      <Where>
<Eq>
<FieldRef Name='FileDirRef'/>
<Value Type='Text'>{0}</Value>
                        </Eq>
</Where>
</Query>
</View>", @"/sites/test/hcl/"
+ InputFolderName);
Microsoft.SharePoint.Client.ListItemCollection listItems
= list.GetItems(camlQueryForItem);
context.Load(listItems);
context.ExecuteQuery();
            if (listItems.Count
> 0)
retStatus = true.ToString();
            else
retStatus = false.ToString();
        catch (Exception ex)
retStatus = "X02";
        return retStatus;
thanks
Sundhar