Validation to BoxLayout Label

Question

Hi, 
 I am displaying the textfield inside in box layout. I want to display the error message as box layout if text field is not having the value. 
 here is the code 
 a!forEach( items: local!dataSubset, expression: a!boxLayout( label: " ", contents: { a!sectionLayout( label: " ", contents: a!columnsLayout( columns: { a!columnLayout( contents: { a!columnsLayout( columns: { a!columnLayout( contents:{ a!textField( label:"detail", value:ri!excelDetails.CustomerName ) }), } ) } ) } ), ), }, style: "#98002E", isCollapsible: true, isInitiallyCollapsed: true, marginBelow: "STANDARD" 
 ) ) Plese help me. thanksin Advance

siddharth_m · Answer

Since you have a sectionLayout inside your boxLayout, you can throw a validation to the respective section containing a blank textfield. Hope this gives you an idea on achieving your usecase. 
 a!localVariables(
 local!textArray: {
 "A",
 "",
 "B"
 },
 a!forEach(
 items: local!textArray,
 expression: a!boxLayout(
 label: if(
 isnull(
 fv!item
 ),
 "Missing Data !!",
 ""
 ),
 contents: {
 a!sectionLayout(
 validations: if(
 isnull(
 fv!item
 ),
 "Please provide a value",
 ""
 ),
 contents: {
 a!textField(
 label: "Detail",
 labelPosition: "ADJACENT",
 value: fv!item
 )
 }
 )
 },
 style: if(
 isnull(
 fv!item
 ),
 "ERROR",
 "INFO"
 ),
 marginBelow: "STANDARD"
 )
 )
)