Hello!

I do some http get request. And this is its response

Is there a way to add event listener for a zen control?

I have a custom text control and I want to add 'change' event listener for it.

Is it possible to do not using 'onchange' property?

I have a class. In class there is an index. This index is for quick search on name property.

Class User
{

.....

Property Name as %String;

Index NameInd On Name;

.....

}

This class is mapped to some global ^GL(userId) = "Name*other data....****"

And there is also index global ^GLNameIndex(Name, userId) = ""

When I add new User entry through class, f. i.

S user = ##class(User).%New()
S user.Name = "Some name"
​D user.%Save()

calling method %Save() adding new entry to index automatically.

Is it possible to use a class parameter in class query?

Example:

Class SomeClass
{

Parameter SOMENAME = "Name1";

Query SomeQuery() As %SQLQuery
{
SELECT ID || ..#SOMENAME  || Name FROM Table
}

}

When I add a parameter to dataCombo for loading it on runtime and the property editable set to 0, dynamically loading content for dropdown through parameter works fine.

But, when I set editable to 1, to implement user search in dataCombo, loading through parameter is not working, it is loaded all rows, but I need loading on some parameter. It don't see the parameter, when editable is 1.

Is it normal behavior of dataCombo? But how about user search in dataCombo on this case? When editable is 0, we can't enter any character in dataCombo.

I have a tablePane. TablePane can have one, or two, or three parameters. It depends on some conditions.

At first I add all three parameters to tablePane.

There is method:

$System.OBJ.New( ClassName As %String = "" )

If class with name ClassName exists - everything is OK.

But, when class does not exist, there is error - <CLASS DOES NOT EXIST>

How can I check before calling $System.OBJ.New() if class witn name ClassName exists?

How to define placeholder for dataCombo?

set dc.placeholder = "Some text" doesn't work.

Is there any good book where is described process of mapping globals to classes? And book about Storage?

I didn't find much information about these questions in documentation :-(