Vb net updating xml file Video dating no regestration
Open Recordset("SYS_CONTROL_RECORD") is ok too 3- I always use indexed recordset, and by habit, I always include the line : rs Ctrl Rec. vb6coder14, here's the DAO help file, in case you don't have it. I mostly work alone these days, but I've had to fire programmers in the past who wouldn't leave unbroken code alone. There's another "code sharing" thread on here where I made a similar point. It's the same issue, someone "fixing" code for one project that breaks another. , a$, and a# days, but I have managed to wean myself into the new "as string" etc format.
Move First to avoid BOF conditions 4- Make sure you have records : msgbox rs Ctrl Rec. As Navion hinted, also be sure to learn the meaning of . The only similar habit that I won't break is Left$(s, 4), Mid$(s, 2, 5), etc.
At some point, I got a bit lazy and started to use the variant versions of the common string functions too.... they are slower and introduce an element of uncertainty (in my mind anyway, no real rationale on that argument). I think we both would get along Before a Move First is called, shouldn't the recordset be checked for . I see that the posted code is using the generic ON ERROR GOTO [label], but checking for . I have my share of On Error Resume Next, and On Error Goto ...
EOF after returning the recordset can allow the option of using some default values vs. in my code, but I very seldom use it when using DAO methods. Actually, I just looked around at some of my standard DAO procedures and did find this code: Public Function Double Val(fld As DAO. EOF Then Exit Do l = l 1 Loop End If ' If Len(Bookmark) Just as a further comment, the only other "bug" I know of in the DAO is that the default timing settings sometimes cause users to have unwanted collisions in a multi-user environment.
I thought that when you use the Set Recordset command the recordset is populated with the contents of the target table. Open Recordset("SYS_CONTROL_RECORD") Msg Box rs Ctrl Rec. Path & "\" & "LLSYS.mdb") Set rs Ctrl Rec = db Ctrl Rec.
Fields("mp Sales Rank Tier1") ' Option Explicit Public Sub mod Determine Price() On Error Go To Error Routine Dim db Ctrl Rec As DAO. Open Recordset("SYS_CONTROL_RECORD", db Open Table) Msg Box rs Ctrl Rec.
Here is the list of TAGs you can use to format your posts Here are VB6 Help Files online Yep, I seldom let these conditions happen, but I believe that an empty recordset will set both . another essential of DAO is Is Null, particularly with binary fields, they don't like much being cast to empty strings, although . I can't remember if this is the case with DAO but ADO will return -1 when using a server side cursor no matter how many records there may be. Actually, it still applies after an index has been set. ' It does seem to be reliable as a check of the existence of ANY records. The Jet Engine has "read ahead" and "cached write" options. Turned out to be a null value in a QTY field where who ever created the DB decided that QTY should be a text field and allow null values. Record Count will always be greater than zero if there are records. Here are two functions I use instead: Again, only out of memories...
For example, if you have no records, after opening the recordset : rs Ctrl Rec. BOF then rem there are no records end if 6- and last, but it should have been the first point mentioned, are you sure there is not typo in your field name, and that the field indeed does exist.. (Just noting that Left(s,4) returns a variant whereas Left$(s,4) returns a string. SOOO many times before we had it, I can remember beating my head against the wall, when it was just a variable name typo.
All that's necessary is that you execute a rs Ctrl Rec.
Move First command before you try and read the fields. That will also throw an error if there are no records in the table.
you can get the value of a field by its index number instead of a literal msgbox rs Ctrl Rec. In fact, I've long advocated that there should also be an Option Type Explicit that applied to Redim as well as functions. Spend a few minutes browsing the FAQ section of the forum.
Fields(0) will return the value for the first field in the table, no matter what it's literal name is... I mean, if I want a variant or a late bound object, I'll declare it as such. Read the Hitch Hiker's Guide to Getting Help on the Forums.
Fields("mp Sales Rank Tier1") ' I happen to still use the DAO often.