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Studio Web user guide

DELIVERY:

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.ExtractionResult
MainPage.ValidationControl.ExtractionResult
```

Using the Validation Control variable

AppVariable.VarValidationControl.ExtractionResult
AppVariable.VarValidationControl.ExtractionResult

For example:

Getting the field value by field name:

AppVariable.VarValidationControl_MainPage.ExtractionResult.GetFieldByFieldName("Invoice Number").Values(0).Value
AppVariable.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).Value
AppVariable.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.Taxonomy
MainPage.ValidationControl.Taxonomy

Using the Validation Control variable

AppVariable.VarValidationControl.Taxonomy
AppVariable.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).ToListSource
AppVariable.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.SelectedDocumentType
MainPage.ValidationControl.SelectedDocumentType

Using the Validation Control variable

AppVariable.VarValidationControl.SelectedDocumentType
AppVariable.VarValidationControl.SelectedDocumentType

Getting the selected field object

Using the Validation Control element

MainPage.ValidationControl.SelectedField
MainPage.ValidationControl.SelectedField

Using the Validation Control variable
```
AppVariable.VarValidationControl.SelectedField
AppVariable.VarValidationControl.SelectedField
```
You can further access SelectedField properties, such as .Field.FieldName, .Field.FieldType, or .Field.ValidatorNotes.

For example:

Getting the selected field value:
```
AppVariable.VarValidationControl_MainPage.SelectedField.Field.FieldValue
AppVariable.VarValidationControl_MainPage.SelectedField.Field.FieldValue
```
You 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.Values
AppVariable.VarValidationControl_MainPage.SelectedField.Field.Values

Getting the selected field first value:

AppVariable.VarValidationControl_MainPage.SelectedField.Field.Values(0).Value
AppVariable.VarValidationControl_MainPage.SelectedField.Field.Values(0).Value

Getting the selected field data type:

AppVariable.VarValidationControl_MainPage.SelectedField.Field.FieldType.ToString
AppVariable.VarValidationControl_MainPage.SelectedField.Field.FieldType.ToString

Getting the selected field index:

AppVariable.VarValidationControl_MainPage.SelectedField.FieldValueIndex.ToString
AppVariable.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>).Value
AppVariable.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).SetFocus
AppVariable.VarValidationControl_MainPage.Field("Invoice Items").Field("Description", 0).SetFocus