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Creating a Validator class for a custom activity

Posted By:      Posted Date: August 29, 2010    Points: 0   Category :WPF
I created a new Workflow Activity Library and then added a new Activity called BindForm2Activity. After that I added a new class called BindForm2Validator and then placed an attribute to the BindForm2Activity to link it to the validator class.   Here is the code for each of the classes:   BindForm2Activity.xoml.cs: Code Snippet   using System;using System.ComponentModel;using System.ComponentModel.Design;using System.Collections;using System.Drawing;using System.Linq;using System.Workflow.ComponentModel.Compiler;using System.Workflow.ComponentModel.Serialization;using System.Workflow.ComponentModel;using System.Workflow.ComponentModel.Design;using System.Workflow.Runtime;using System.Workflow.Activities;using System.Workflow.Activities.Rules; using FormsCollection;using Utils; namespace ActivityLibrary{    [ActivityValidator(typeof(BindForm2Validator))] public partial class BindForm2Activity : SequenceActivity {        public static DependencyProperty FormToBindProperty = System.Workflow.ComponentModel.DependencyProperty.Register("FormToBind", typeof(FormsCollection.Form2), typeof(BindForm2Activity));         [Description("Form to bind a datasource to it ")]        [Category("BindForm2ToDataSource")]        [Browsable(true)]        [DesignerSerializationVisibility(DesignerSerializationVisibility.Visible)]        public FormsCollection.Form2 Form

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