I am using LDAP Directory Services in C# to search users from LDAP with some filter criteria. I want to supply multiple OR filter criteria. For example firstName, lastName, telephone etc. It works fine when I supply all filter values but gives error when I just supply one or two filter values.
Here is the sample code I am using:
var LdapSearcher = new DirectorySearcher(RootDomain, "(&(objectclass=user)(sn=" + lastName.Trim() + ")(givenName=" + firstName.Trim() + "))");
I get the result when I supply both sn and givenName values. However, it's an OR search and user will enter either lastName or FirstName.
How to apply OR Filter in LDAP DirectorySearcher.?