hi Aditya,
i hope you know object model code, how to update share point list and all that, use the same concept.
String listName = null;
int index;string path = "your sharepoint path";
SPSite thisSite = null;SPWeb thisWeb = null;
SPList thisList = "list name";SPListItem item = null;
XPathNavigator xnDoc = null;XPathNavigator xnFormName = null;
try
{
xnDoc = this.MainDataSource.CreateNavigator();
thisSite = new SPSite(path);thisWeb = thisSite.OpenWeb();
thisList = thisWeb.Lists[listName];
//index needs to be retrieved from the secondary data connection item = thisList.GetItemById(index);
thisWeb.AllowUnsafeUpdates =
true;item["your column name"] = "value";
item.Update();
}
catch (Exception ex)
{
}
finally
{
item = null;
thisList =
null;if (thisWeb != null)
thisWeb.Dispose();
if (thisSite != null)
thisSite.Dispose();
}