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TableFormField Class

Summary

A single rectangular region on a form that extended to defines a table/invoice area on a table header (not filled-in) form so a text reading process can be performed on the filled form during form processing on the recognized fields to the end of the invoice area.

Syntax

C++

[SerializableAttribute()] 
public class TableFormField : FormField

  
<SerializableAttribute()> 
Public Class TableFormField  
   Inherits Leadtools.Forms.Processing.FormField

[SerializableAttribute()] 
public ref class TableFormField : public Leadtools.Forms.Processing.FormField

Remarks

Fields are defined for each page in the processing engine. All fields require you fill in the Property specifying where the field is located, and a Name Property.

Fields can be added or retrieved through the FormProcessingEngine.Pages property. Once fields are defined, they can be loaded/saved from disk using the FormProcessingEngine.LoadFields and FormProcessingEngine.SaveFields methods, allowing you to define MasterForm fields just once and save them to disk. LEADTOOLS supports TableFormField, OmrFormField, BarcodeFormField, ImageFormField, TableFormField, and custom user-defined fields derived from FormField. When obtaining processing results, you should check for the type of each field, and cast it to the appropriate type in order to obtain the field specific results (barcode, image, etc).

Example

using Leadtools; 
using Leadtools.Barcode; 
using Leadtools.Codecs; 
using Leadtools.Forms; 
using Leadtools.Forms.Ocr; 
using Leadtools.Forms.Processing; 
using Leadtools.Forms.Recognition; 
using Leadtools.Forms.Recognition.Barcode; 
using Leadtools.Forms.Recognition.Ocr; 
 
///This example shows how to create a TableFormField. 
public void AddTableFormField(FormProcessingEngine processingEngine) 
{ 
   //Create a new page for the form.  
   FormPage formPage = new FormPage(1, 150, 150); 
   TableFormField tableField = new TableFormField(); 
 
   //Set Table Rule which tell us that each table row is seperated with 
   //horizontal line. 
   tableField.Rules = TableRules.RowsLineSeparator; 
 
   //add two columns to new table field 
   TextFormField column1 = new TextFormField(); 
   column1.Name = "Column1"; 
   column1.Bounds = new LogicalRectangle(0, 0, 100, 50, LogicalUnit.Pixel); 
   tableField.Columns.Add(new TableColumn(column1)); 
 
   TextFormField column2 = new TextFormField(); 
   column2.Name = "Column2"; 
   column2.Bounds = new LogicalRectangle(150, 0, 100, 50, LogicalUnit.Pixel); 
   tableField.Columns.Add(new TableColumn(column2)); 
 
   formPage.Add(tableField); 
   //Add the page to the engine  
   processingEngine.Pages.Add(formPage); 
}

Imports Leadtools 
Imports Leadtools.Barcode 
Imports Leadtools.Codecs 
Imports Leadtools.Forms 
Imports Leadtools.Forms.Ocr 
Imports Leadtools.Forms.Processing 
Imports Leadtools.Forms.Recognition 
Imports Leadtools.Forms.Recognition.Barcode 
Imports Leadtools.Forms.Recognition.Ocr 
 
''' This example shows how to create a TableFormField. 
Public Sub AddTableFormField(ByVal processingEngine As FormProcessingEngine) 
   ''' Create a new page for the form.  
   Dim formPage As FormPage = New FormPage(1, 150, 150) 
   Dim tableField As TableFormField = New TableFormField() 
 
   ''' Set Table Rule which tell us that each table row is seperated with 
   ''' horizontal line. 
   tableField.Rules = TableRules.RowsLineSeparator 
 
   ''' add two columns to new table field 
   Dim column1 As TextFormField = New TextFormField() 
   column1.Name = "Column1" 
   column1.Bounds = New LogicalRectangle(0, 0, 100, 50, LogicalUnit.Pixel) 
   tableField.Columns.Add(New TableColumn(column1)) 
 
   Dim column2 As TextFormField = New TextFormField() 
   column2.Name = "Column2" 
   column2.Bounds = New LogicalRectangle(150, 0, 100, 50, LogicalUnit.Pixel) 
   tableField.Columns.Add(New TableColumn(column2)) 
 
   formPage.Add(tableField) 
   ''' Add the page to the engine  
   processingEngine.Pages.Add(formPage) 
End Sub

Requirements

Target Platforms

Reference

TableFormField Members

Leadtools.Forms.Processing Namespace

Help Version 19.0.2017.10.27

Leadtools.Forms.Processing Assembly

Introduction

Getting Started

Namespaces

Leadtools.Forms.Processing Namespace

Assemblies