How to store particular columns of CDT in local Variable

Question

Suppose, 
 I have created one local variable abc storing CDT: 
 local!abc: 'type!{urn:com:appian:types}Monitoring_Roster'(), 
 
 Now I want to store only 2/5 columns of this CDT in seperate local variable, How can I do it?

Chris · Accepted Answer

There are a few ways to do this, might depend on your use case (?) and Appian version for which method to use. First, you could take the fields you want and generate a local variable using a!map() (change to regular dictionary {} if not on a late version of Appian): 
 a!localVariables(
 /*local!abc: 'type!{urn:com:appian:types}Monitoring_Roster'(),*/
 local!abc: {
 field1: "a",
 field2: "b",
 field3: "c",
 field4: "d",
 field5: "e"
 },
 local!xyx: a!map(
 field1: local!abc.field1,
 field3: local!abc.field3,
 field5: local!abc.field5
 ),
 {
 local!xyx
 }
) 
 Or, utilize a local variable of the same type and only populate certain fields: 
 a!localVariables(
 local!abc: 'type!{urn:com:appian:types}Monitoring_Roster'(/* populated data */),
 local!xyx: 'type!{urn:com:appian:types}Monitoring_Roster'(
 field1: local!abc.field1,
 field3: local!abc.field3,
 field5: local!abc.field5
 ),
 {
 local!xyx
 }
) 
 Please provide some additional details on your use case for more specific answers.

How to store particular columns of CDT in local Variable

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