Crossword generator in Dynamics AX

-
While iterating through the AOT, I came upon this class SysHelpCrosswordEngine. I never knew AX had a crossword generation engine (why will we need one anyway). After testing it for 5 minutes, I successfully generated my own crossword.



Well, I wasn’t obviously satisfied because I fed in the questions and I already knew the answers. So I wondered if there was a way to let AX generate a crossword for me, well it seems there is. Here is where another class SysHelpBookCrossword comes into picture. I let it generate a crossword for me on the intrinsic functions available in AX. I had to tweak one of the class to get the results. AX generated a crossword with 50 questions. It outputs a html file to the C: drive named cross.htm

You can find the attached project here. Have fun.

Comments

Post a Comment

Popular posts from this blog

The field with ID '0' does not exist in table - Cause and resolution.

-
Image
Hello readers, In Dynamics AX coding, you should have come across this error sometime - The field with ID '0' does not exist in table 'SomeTable' So what causes this error and what is the possible resolution to it? Well, the most likely cause for this error is a missing mapping in a table map. Let us look at an example. I've a simple Map named CustVendAccount with one Account field. I've created two mappings - one with CustTable's AccountNum field and for the otehr mapping, I just specify VendTable but no field. This is how my map looks like, Now, I've a simple job which just passes either CustTable or VendTable as an argument and then we print the Account field in the map. static void CustVendAccountMap(Args _args) { CustTable custTable; VendTable vendTable; void readMap(CustVendAccount _custVendAccount) { info(strFmt("Value from table %1 is %2",tableId2name(_custVendAccount.TableId), _custV...
Read more

How to add empty ranges in query

-
In Dynamics AX programming, a common mistake I have seen when it comes to query ranges is passing an empty string value to the range. The developer here is expecting it to show all the records where the range field is empty. Instead, what we get is all records without the range being applied. As baffling as it may seems, it is easily explainable. The query engine in Dynamics AX, will not add a range if you don’t specify a value or if you specify an empty string because an empty string is treated as no value. So the following code will result in this SQL statement, query = new Query(); qbds = query.addDataSource(tableNum(ProjTable)); qbr = qbds.addRange(fieldNum(ProjTable, Name)); qbr.value(''); Select first fast * from ProjTable; But what was expected was something like, Select first fast * from ProjTable where Name == ''; So to work around this issue, use the SysQuery::valueEmptyString() static method which parses the empty strings correctly so that it...
Read more

SysQuery::findOrCreateRange() - A better way to create dynamic query ranges

-
When creating dynamic query ranges in X++, it is considered a best practice to create a range only if it has not been already created. I have seen examples of code where the addRange() method is called inside an executeQuery() method. This has a performance hit and should be avoided. The best approach is to create the range in the init() of the datasource. In the executeQuery(), we can find the range first, if it does not exists or has not been created at that point, create a new one and apply the values. I found a helper method on the SysQuery class which did exactly this. The method is SysQuery::findOrCreateRange(). The method takes two parameters, a datasource to add the range to and the range itself. It returns a range object.
Read more