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InvalidComObjectException when searching in ADI am writting an application that requires to list all users in our domain, the code is below. My application is written in C# 2.0. I enumerate all users fine with my code, except that when I exit the application normally I get a popup from MS-DEV saying "There is no source code available for the current location." After I click ok I get "InvalidComObjectException was unhandled", "COM object that has been separated from its underlying RCW can not be used". Here is my code. I have a similar behavior when I try to enumerate the domains on our network. Can someone help me on this one? I have no idea where to look. Thank you! Martin private bool GetDomainUsers() { try { // Start from the root of the active active directory DirectoryEntry domainRoot = new DirectoryEntry(LDAP://MyDomain); DirectorySearcher domainSearch = new DirectorySearcher(domainRoot); // Set the search filter. domainSearch.Filter = ("(&(objectCategory=person)(objectClass=user))"); domainSearch.PageSize = 100; // Perform the search SearchResultCollection usersFound = domainSearch.FindAll(); // Enumerate over each returned domain. foreach (SearchResult searchResult in usersFound) { lstUsers.Items.Add(searchResult.Properties["sAMAccountName"][0].ToString()); } } catch { } return true; } Just out of curiosity, have you tried this with .NET 1.1? There could be a
bug or something in 2.0 (which is still beta). It isn't obvious to me what the problem is. It would be helpful to see what the stack trace of the exception is (ex.ToString) Joe K. Show quote "MP" <martin.pare@I_Will_Not_Give_You_My_Address> wrote in message news:uELPtQM%23EHA.936@TK2MSFTNGP12.phx.gbl... > Hello, > > I am writting an application that requires to list all users in our > domain, the code is below. My application is written in C# 2.0. I > enumerate all users fine with my code, except that when I exit the > application normally I get a popup from MS-DEV saying "There is no source > code available for the current location." > > After I click ok I get "InvalidComObjectException was unhandled", "COM > object that has been separated from its underlying RCW can not be used". > > Here is my code. I have a similar behavior when I try to enumerate the > domains on our network. > > > Can someone help me on this one? I have no idea where to look. > > Thank you! > Martin > > > private bool GetDomainUsers() > { > try > { > // Start from the root of the active active directory > DirectoryEntry domainRoot = new DirectoryEntry(LDAP://MyDomain); > DirectorySearcher domainSearch = new DirectorySearcher(domainRoot); > // Set the search filter. > domainSearch.Filter = > ("(&(objectCategory=person)(objectClass=user))"); > domainSearch.PageSize = 100; > // Perform the search > SearchResultCollection usersFound = domainSearch.FindAll(); > // Enumerate over each returned domain. > foreach (SearchResult searchResult in usersFound) > { > > lstUsers.Items.Add(searchResult.Properties["sAMAccountName"][0].ToString()); > } > } > catch > { > } > return true; > } > > Joe,
Thank you for your advise. I have ran a test with a smiple console application and I had the very same problem. SO.... I decied to try a few things and turns out that I have to call .Dispose on the SearchResultCollection. Thank you! -Martin private bool GetDomainUsers() { try { // Start from the root of the active active directory DirectoryEntry domainRoot = new DirectoryEntry(LDAP://MyDomain); DirectorySearcher domainSearch = new DirectorySearcher(domainRoot); // Set the search filter. domainSearch.Filter = ("(&(objectCategory=person)(objectClass=user))"); domainSearch.PageSize = 100; // Perform the search SearchResultCollection usersFound = domainSearch.FindAll(); // Enumerate over each returned domain. foreach (SearchResult searchResult in usersFound) { lstUsers.Items.Add(searchResult.Properties["sAMAccountName"][0].ToString()); } usersFound.Dispose; } catch { } return true; } Show quote "Joe Kaplan (MVP - ADSI)" <joseph.e.kap***@removethis.accenture.com> wrote in message news:Oa6xp9M%23EHA.2788@TK2MSFTNGP15.phx.gbl... > Just out of curiosity, have you tried this with .NET 1.1? There could be > a bug or something in 2.0 (which is still beta). It isn't obvious to me > what the problem is. > > It would be helpful to see what the stack trace of the exception is > (ex.ToString) > > Joe K. > > "MP" <martin.pare@I_Will_Not_Give_You_My_Address> wrote in message > news:uELPtQM%23EHA.936@TK2MSFTNGP12.phx.gbl... >> Hello, >> >> I am writting an application that requires to list all users in our >> domain, the code is below. My application is written in C# 2.0. I >> enumerate all users fine with my code, except that when I exit the >> application normally I get a popup from MS-DEV saying "There is no source >> code available for the current location." >> >> After I click ok I get "InvalidComObjectException was unhandled", "COM >> object that has been separated from its underlying RCW can not be used". >> >> Here is my code. I have a similar behavior when I try to enumerate the >> domains on our network. >> >> >> Can someone help me on this one? I have no idea where to look. >> >> Thank you! >> Martin >> >> >> private bool GetDomainUsers() >> { >> try >> { >> // Start from the root of the active active directory >> DirectoryEntry domainRoot = new DirectoryEntry(LDAP://MyDomain); >> DirectorySearcher domainSearch = new >> DirectorySearcher(domainRoot); >> // Set the search filter. >> domainSearch.Filter = >> ("(&(objectCategory=person)(objectClass=user))"); >> domainSearch.PageSize = 100; >> // Perform the search >> SearchResultCollection usersFound = domainSearch.FindAll(); >> // Enumerate over each returned domain. >> foreach (SearchResult searchResult in usersFound) >> { >> >> lstUsers.Items.Add(searchResult.Properties["sAMAccountName"][0].ToString()); >> } >> } >> catch >> { >> } >> return true; >> } >> >> > > I do the same with vb.
but with 1.1, anyway this looks ok, dunno what the problem is. but would appreciate it if you tell me how you enumerate domains on your network? thanks and good luck Sameh Show quote "MP" <martin.pare@I_Will_Not_Give_You_My_Address> wrote in message news:uELPtQM%23EHA.936@TK2MSFTNGP12.phx.gbl... > Hello, > > I am writting an application that requires to list all users in our > domain, the code is below. My application is written in C# 2.0. I > enumerate all users fine with my code, except that when I exit the > application normally I get a popup from MS-DEV saying "There is no source > code available for the current location." > > After I click ok I get "InvalidComObjectException was unhandled", "COM > object that has been separated from its underlying RCW can not be used". > > Here is my code. I have a similar behavior when I try to enumerate the > domains on our network. > > > Can someone help me on this one? I have no idea where to look. > > Thank you! > Martin > > > private bool GetDomainUsers() > { > try > { > // Start from the root of the active active directory > DirectoryEntry domainRoot = new DirectoryEntry(LDAP://MyDomain); > DirectorySearcher domainSearch = new DirectorySearcher(domainRoot); > // Set the search filter. > domainSearch.Filter = > ("(&(objectCategory=person)(objectClass=user))"); > domainSearch.PageSize = 100; > // Perform the search > SearchResultCollection usersFound = domainSearch.FindAll(); > // Enumerate over each returned domain. > foreach (SearchResult searchResult in usersFound) > { > > lstUsers.Items.Add(searchResult.Properties["sAMAccountName"][0].ToString()); > } > } > catch > { > } > return true; > } > >  |
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