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Studio Web user guide
Last updated Feb 19, 2026
Common VB expressions for Validation Control
Getting the whole Extraction Result
To return the extraction result object, currently rendered by the control:
- Using the Validation Control element
MainPage.ValidationControl.ExtractionResultMainPage.ValidationControl.ExtractionResult - Using the Validation Control variable
AppVariable.VarValidationControl.ExtractionResultAppVariable.VarValidationControl.ExtractionResult
For example:
- Getting the field value by field name:
AppVariable.VarValidationControl_MainPage.ExtractionResult.GetFieldByFieldName("Invoice Number").Values(0).ValueAppVariable.VarValidationControl_MainPage.ExtractionResult.GetFieldByFieldName("Invoice Number").Values(0).Value - Getting the field value by field index:
AppVariable.VarValidationControl_MainPage.ExtractionResult.ResultsDocument.Fields(0).Values(0).ValueAppVariable.VarValidationControl_MainPage.ExtractionResult.ResultsDocument.Fields(0).Values(0).Value - Getting the list of all field names displayed in the Validation Control
AppVariable.VarValidationControl.ExtractionResult.GetFields().Select(Function(f) f.FieldName)AppVariable.VarValidationControl.ExtractionResult.GetFields().Select(Function(f) f.FieldName)
Here is the list of methods you can use to read data from ExtractionResult:
.GetDocumentType().GetField().GetFieldByFieldName().GetFields().GetFieldValidatorNotes().GetFieldValidatorNotesByFieldName().GetSimpleFieldValues().GetSimpleFieldValuesByFieldName().GetTable().GetTableByTableName().GetTableFieldValue().GetTableFieldValueByTableName().GetValueCount().GetValueCountByFieldName()
Getting the taxonomy used by the control
To inspect document types, fields, or display properties:
- Using the Validation Control element
MainPage.ValidationControl.TaxonomyMainPage.ValidationControl.Taxonomy - Using the Validation Control variable
AppVariable.VarValidationControl.TaxonomyAppVariable.VarValidationControl.Taxonomy
For example:
- Getting the list of fields in a taxonomy and save it as a source for a dropdown control:
AppVariable.VarValidationControl_MainPage.Taxonomy.GetFields(VarValidationControl_MainPage.SelectedDocumentType).ToListSourceAppVariable.VarValidationControl_MainPage.Taxonomy.GetFields(VarValidationControl_MainPage.SelectedDocumentType).ToListSource
Here is the list of methods you can use to read data from Taxonomy:
.GetFields()
Getting the selected document type, as String
To bind UI elements to the curently chosen document type:
- Using the Validation Control element
MainPage.ValidationControl.SelectedDocumentTypeMainPage.ValidationControl.SelectedDocumentType - Using the Validation Control variable
AppVariable.VarValidationControl.SelectedDocumentTypeAppVariable.VarValidationControl.SelectedDocumentType
Getting the selected field object
-
Using the Validation Control element
MainPage.ValidationControl.SelectedFieldMainPage.ValidationControl.SelectedField -
Using the Validation Control variable
AppVariable.VarValidationControl.SelectedFieldAppVariable.VarValidationControl.SelectedFieldYou can further access
SelectedFieldproperties, such as.Field.FieldName,.Field.FieldType, or.Field.ValidatorNotes.
For example:
-
Getting the selected field value:
AppVariable.VarValidationControl_MainPage.SelectedField.Field.FieldValueAppVariable.VarValidationControl_MainPage.SelectedField.Field.FieldValueYou can further access selected field value properties, such as
.FieldValue.Value,.FieldValue.Confidence,.FieldValue.OperatorConfirmed. -
Getting the selected field all values:
AppVariable.VarValidationControl_MainPage.SelectedField.Field.ValuesAppVariable.VarValidationControl_MainPage.SelectedField.Field.Values -
Getting the selected field first value:
AppVariable.VarValidationControl_MainPage.SelectedField.Field.Values(0).ValueAppVariable.VarValidationControl_MainPage.SelectedField.Field.Values(0).Value -
Getting the selected field data type:
AppVariable.VarValidationControl_MainPage.SelectedField.Field.FieldType.ToStringAppVariable.VarValidationControl_MainPage.SelectedField.Field.FieldType.ToString -
Getting the selected field index:
AppVariable.VarValidationControl_MainPage.SelectedField.FieldValueIndex.ToStringAppVariable.VarValidationControl_MainPage.SelectedField.FieldValueIndex.ToString
Getting the Validation Control properties
To read Validation Control properties:
- Using the Validation Control element
MainPage.ValidationControl.<PROPERTY NAME>MainPage.ValidationControl.<PROPERTY NAME> - Using the Validation Control variable
Controls.MainPage.ValidationControl.<PROPERTY NAME>Controls.MainPage.ValidationControl.<PROPERTY NAME>
Reading a field value from a table
- Reading field value from a table
AppVariable.VarValidationControl_MainPage.ExtractionResult.GetTableFieldValueByTableName(<TABLENAME>)(<COLUMN INDEX>)(<ROW INDEX>).ValueAppVariable.VarValidationControl_MainPage.ExtractionResult.GetTableFieldValueByTableName(<TABLENAME>)(<COLUMN INDEX>)(<ROW INDEX>).Value
For example:
AppVariable.VarValidationControl_MainPage.ExtractionResult.GetTableFieldValueByTable Name("Invoice Items")(0)(0).Value
AppVariable.VarValidationControl_MainPage.ExtractionResult.GetTableFieldValueByTable Name("Invoice Items")(0)(0).Value
Setting focus on a table cell
- Using the Set Variable Value activity with the following expression in the Set value field
AppVariable.VarValidationControl_MainPage.Field("Invoice Items").Field("Description", 0).SetFocusAppVariable.VarValidationControl_MainPage.Field("Invoice Items").Field("Description", 0).SetFocus
