In an embedded browse, I have created a filtered look up. There are 2 fields CleintID and SessionID. Once the ClientId field is filled in, the SessionId field's look up is filtered on the ClientID. If the clientID field is changed to another client. I need the SessionID field to be set to "blank". I tried field rules, default with an expression but can't get it to work. I also can't find a way to do it on the browse itself, with an event.
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Filtered lookup
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Re: Filtered lookup
Can you explain a bit more please Baz?
What you seem to be saying is that you want to;
Select a Client ID and this shows the options for the Session ID from the lookup.
If the Client ID changes, the Session ID is set to Blank?
If you are using a lookup, then changing Client ID will automatically result in the presentation of the corresponding Session ID.
One way around this is to NOT trigger the second filtered lookup using OnChange as Tom suggests.
What do you want to happen if the user deletes the content of the Client ID field entirely?
An example of where you have gotten to would help - for this and the other syntax post.See our Hybrid Option here;
https://hybridapps.example-software.com/
Giving advice is dangerous.
Giving "Good Advice" can be fatal.
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Re: Filtered lookup
What I'm trying to accomplish is to insure that when a client id is entered, that the session id that is selected can only be a session that belongs to that client (it is selected from a table called sessions). The filtered look up on the session id field works. However If the client ID field is either blanked out or changed after a valid session id has been entered, I don't know how to enforce that the session id still belongs to that client. I tried some expressions in field rules cross validation on the session Id field, but could not get it to work.
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Re: Filtered lookup
Try this. The syntax might not be 100% BTW
Create an Index using both the Client ID and Session ID
trim(client_id)+trim(session-id)
Use EXIST() to see if there is a valid match in the OnChange event, using the value of the changed/blank field plus the value of the sesion id.
The easiest way would be to prevent any changes to the Client ID is there is a valid session present.
To change the Client ID, the record - including any Session ID should be deleted and reentered.See our Hybrid Option here;
https://hybridapps.example-software.com/
Giving advice is dangerous.
Giving "Good Advice" can be fatal.
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Re: Filtered lookup
Thanks Ted,
Tom Cone was kind enough to help me out with this last night. The following code was attached to the Browses Events, Event.
Code:FUNCTION CLIENT_iD_onChange as v () :Appointments:Control_browse1:Session_id.Text = "" end function
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