Is there a search feature in a list or collection ?

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Posted on by VoltesDev

Hello everyone,

Is there a search for specific word in a list or a collection ?

If for example I'm listing my tables with this code :

IList listTables = Microsoft.Dynamics.Ax.Xpp.MetadataSupport::tableNames();

Can I loop and find some word, for example with the word "Sales" ?

Or should I use Collection ?

Thanks,

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Blue Wang on at

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Hi Voltes,

You can use Set.

https://docs.microsoft.com/en-us/previous-versions/dynamicsax-2009/developer/aa861938(v=ax.50)?redirectedfrom=MSDN

List no such a method, you have to iterate its elements.

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WillWU 22,361 on at

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Hi VoltesDev,

You can use ListIterator to traverse your list:

docs.microsoft.com/.../x-csharp-comparison-collections

List list = new List(Types::String);

ListIterator iterator = new ListIterator(list);

while(iterator.more())

{

info(iterator.value());

iterator.next();

}

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VoltesDev on at

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Hi both,

I'm sorry, can I have a sample in real case. I have a trouble every time looking at Microsoft docs.

Also it seems both of you replying in contradiction, if I'm not miss understood. And btw have u know the different between ListIterator and IList ?

I saw in one of standard class is using IList, ?

My intentions is still, I need to have a list of tables in AOT, but I want to process only tables with names contains word "Sales"

Thanks,

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WillWU 22,361 on at

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Hi voltes,

Sorry for my mistake.

So what you need is:

var tables = Microsoft.Dynamics.Ax.Xpp.MetadataSupport::TableNames();

while (tables.MoveNext())

{

str tablename=tables.Current;

}

And you could use strFind() or strScan() to find the names you want.

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Martin Dráb 237,803 Most Valuable Professional on at

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List is an X++ class representing a list of values. ListIterator is an X++ used to iterate elements of a List object.

IList is a managed (.NET) interface from System.Collections namespace. It's an abstraction of a list of values - concrete implementations include System.Collections.ArrayList and System.Collections.Generics.List<T>, for example.

Because IList isn't the same thing as List class, you can't use ListIterator for it. But you can use managed classes and frameworks, such as IEnumerator (tables.GetEnumerator()) or LINQ.

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Martin Dráb 237,803 Most Valuable Professional on at

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If you create a C# project, you can utilize LINQ in a way like this:

foreach (string tableName = tableNames.Where(t => t.Contains("Sales"))) { ... }

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