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C#

ExpressionFieldCollector.cs：源码内容

							﻿// -- FILE ------------------------------------------------------------------
// name       : LookupCollector.cs
// project    : Itenso Web User Forms
// created    : Jani Giannoudis - 2008.10.30
// language   : c#
// environment: .NET 2.0
// copyright  : (c) 2008 by Itenso GmbH, Switzerland
// --------------------------------------------------------------------------
using System;
using System.Collections.Generic;
using System.Web.UI;
namespace Itenso.WebUserForms.Controls
{
	// ------------------------------------------------------------------------
	public class ExpressionFieldCollector : UserFormVisitor
	{
		// ----------------------------------------------------------------------
		public ExpressionFieldCollector( Control startControl )
			: base( startControl )
		{
		} // LookupCollector
		// ----------------------------------------------------------------------
		public List<IExpressionField> ExpressionFields
		{
			get { return this.expressionFields; }
		} // ExpressionFields
		// ----------------------------------------------------------------------
		public void Collect()
		{
			this.expressionFields.Clear();
			Start();
		} // Collect
		// ----------------------------------------------------------------------
		public static List<IExpressionField> Collect( Control startControl )
		{
			ExpressionFieldCollector lookupFieldCollector = new ExpressionFieldCollector( startControl );
			lookupFieldCollector.Collect();
			return lookupFieldCollector.ExpressionFields;
		} // Collect
		// ----------------------------------------------------------------------
		protected override void VisitExpresionFormField( Control control, 
			IExpressionField expressionField, IUserFormHeader formHeader )
		{
			this.expressionFields.Add( expressionField );
		} // VisitLookupFormField
		// ----------------------------------------------------------------------
		// members
		private readonly List<IExpressionField> expressionFields = new List<IExpressionField>();
	} // class LookupCollector
} // namespace Itenso.WebUserForms.Controls
// -- EOF -------------------------------------------------------------------

						