I want to know how to skip a/multiple line(s) in object ADODB.Stream in visual basic code. The only paramater for writing text that I know is stream.WriteText for this object. Parameter:
Write, WriteLine and WriteBlankLines is for object FileSystemObject. So there is no way to type stream.WriteBlankLines under ADODB.Stream. It will pop-out error. If anyone knows, I appreciate your kindness.
Error is caused by stream.vbcrlf, using:
stream.WriteText vbCrLf
should work.
Finally, I found the answer. Just type stream.vbCrLf after stream.WriteText. And it will go down and start at new line.
Related
I am writing a LUA script, when I run the program, this result as below:
socket = net.createUDPSocket()
attempt to call field 'createUDPSocket' (a nil value)
I have been searching for many website, there seems to no much details about that. Could anyone help?
That simply means that the createUDPSocket function does not exist. Without seeing your code, that is the most anyone here is going to be able to help you with.
I'd like to read the value of a setting in the ejabberd.yml file and was wondering if I could still use application:get_env(ejabberd, ) to do so, as I was able to do from the ejabberd.cfg file which is a collection of erlang terms.
Any clues? I've tried searching and when I try using the application:get_env() call, I get back the value 'undefined' ...
I'm thinking that it must be a simple thing to do, and would appreciate all help!
Thanks,
Ombud.
I have a method for which I need to pass a record as a binary. I tried list_to_binary/1 both by passing the record itself in and converting the record to a list first then passing it in. However, I get a bagarg error with either options. Not sure what I'm missing? Can anyone help with this?
Thanks in advance!
If you need a binary, you might consider term_to_binary() and binary_to_term() functions..
I keep getting "NullReferenceError" in my output, could someone kindly explain what exactly this statement means.
Somewhere in your code, you are trying to access a member of a reference type, but the variable actually is null. Without code and a stacktrace it's impossible to say what exactly happens. It might be because some parameter is expecting a value but isn't supplied one.
If it helps, a decent description of NullReferenceException -- why/when they occur, and how to prevent them -- at http://www.dotnetperls.com/nullreferenceexception
I use nested database stuctures with TClientDataSets. I'm new to programming so my lingo is ten-to-one wrong.
My problem is as follows: I defined my database stucture and all the fields of the nested stuctures and then I called the CreatDataSet method of the master clientDataSet and it worked. I then wanted to add another data field to the master ClientDataSet. I then called the ClearData method of the Master ClientDataSet and then tried to create the new stucture by calling CreateDataSet again. It is here where I encounter my problem. I get the 'Invalid field type error' and I don't really know or understand what what the problem is.
So how do I create an exsta field after I called the createdata set method, then called the cleardata method, then added a field and then calling the createdataset method again without getting the 'invalid field type error?
Does anybody have any information about this problem. I use Delphi 2007
Kind Rgards
Riaan de Villiers
It is a Delphi bug.
Call YourDataset.FieldDefs.Clear before calling CreateDataSet and it should work.
For more infomation please look at this QC Report:
http://qc.codegear.com/wc/qcmain.aspx?d=38984
EDIT:
After reading your problem more carefully, the problem might be something else, but please try the FieldDefs.Clear and let me know the results.
It has been a long time since you asked this question, but I believe the problem has specifically to do with the nested dataset fields. I've seen this error before, and I believe that it has to do with the order in which the particular fields are created. If I remember correctly, if you try to create the master dataset before the nested dataset fields are defined or created, you get this invalid field type error.
Begin by removing your nested dataset fields from the equation and see if you still get the problem. If not, then add them back. Try creating the master dataset and its nested datasets in different orders.
I know this is late, but I hope it helps.