General

Re: Getting the current row in code

Greg Collins — Fri, 16 Mar 2007 20:36:34 GMT

Actually it kind of is--if you look at the rule dialog box, it says:

Condition:
None - This rule always applies.

Now, you might not understand exactly what that means right away--but I'm sure it makes total sense to you know that you've been through this!

Keep up the good work!

Re: Getting the current row in code

MylesRip — Fri, 16 Mar 2007 16:44:50 GMT

YEA!! That worked! Thanks for sticking with me on this, Greg. Thanks for your input as well, Clay. This should be documented somewhere...

Myles

Re: Getting the current row in code

Greg Collins — Fri, 16 Mar 2007 16:34:47 GMT

That confused me the first time I saw it too. The solution is to NOT use a condition. If there is no condition present on the rule, then it DOES fire each time a value is changed.

Re: Getting the current row in code

MylesRip — Fri, 16 Mar 2007 13:16:42 GMT

Thanks for your response.

I looked at using a rule. The problem with that approach is that the conditions on when to apply a rule appear to be limited to <some value> "is equal to" or "is not equal to" or "is less than" etc. <some other value>. I would need the rule to apply whenever the value is *changed*, regardless of how it compares to some other value or whether it matches a specific pattern. Also, I don't want to execute the rule if the value hasn't changed. None of the rule options seem to allow for this.

Re: Getting the current row in code

Clay Fox — Fri, 16 Mar 2007 05:56:46 GMT

Have you tried just using a rule on the field in your form. When it changes it sets the value of the other form in the row? This might be a good work around solution until you get your syntax figured out. Since you are changing a field in the same row you do not have to use the current function. Typically it is a syntax issue in your xpath statement.

Good Luck

Re: Getting the current row in code

MylesRip — Thu, 15 Mar 2007 21:48:45 GMT

Both "./" and "../" returned null references. Current() doesn't appear to be allowed in XPath expressions. It says it's an undefined function and asks for an XsltContext to provide a definition. I had hoped to be able to use current() in the context of an absolute XPath. Something along the lines of
"/dfs:myFields/dfs:dataFields/...record[current()]/@otherattribute"
I know there is a current() function in InfoPath, but I don't know how to get it to work in the code of an event handler.

This is getting pretty frustrating - it should be simple. This is a project with high visibility in the company and I'm at a complete standstill. Argh!

Re: Getting the current row in code

Greg Collins — Thu, 15 Mar 2007 21:06:03 GMT

If your particular scenario current() is the same as ., so there's no advantage.

Did your XPath use "./" or "../"? Because that makes a difference. As stated above "." is the current node whereas ".." is the parent node (even for attributes).

Re: Getting the current row in code

MylesRip — Thu, 15 Mar 2007 17:26:15 GMT

The "field" that changes is actually an attribute within a node of an XmlDocument which is the datasource passed back from a web service. This attribute is the "sender" object when the "on changed" event fires. The other "field" that I need to update within the event handler is a different attribute of the same Xml element.

I tried "./@otherattribute" as the path for a SelectSingleNode on the datasource, but it complains of a null reference exception.

I think I'm having problems because the sender is just an attribute instead of a node. When I examine the XmlEventArgs it says that the OldParent is null.

I wonder if using the current() function my path might work better? I tried something like that, but it complained that it needs an XSLT context.

Re: Getting the current row in code

Greg Collins — Thu, 15 Mar 2007 16:54:17 GMT

Use a relative XPath... you should already have the object for the current node from the event handler parameters. Then you can use a relative XPath like "../OtherField" to get to the other field. The .. means to go up to the parent node.

Getting the current row in code

MylesRip — Thu, 15 Mar 2007 14:59:23 GMT

Hi,

I have a repeating table with an "on changed" event handler for one of the fields in the table. Whenever the value changes, I want to modify the value of a different field in the same row. How can I reference a different field of the current row? (This needs to work in a browser-enabled form, if that makes any difference.) Thanks in advance!