DatistEQ之自定义节点

本文旨在说明，DatistEQ原生节点及编辑器的定义方法。
定义节点

using System;
using System.ComponentModel;
using System.ComponentModel.DataAnnotations;
using System.Text.RegularExpressions;
using BcDataMining.Node.Define;
using BcDataMining.Node.PluginNode;

namespace BcDataMining.Node
{

    //自定义分组栏中的位置
    [NodeGroup("时间序列", "GEOIST")]
    public class NodeGeoTest:NodeBase 
    {
        public NodeGeoTest()
        {
            Name = "NodeGeoTest";
            Nodetype = NodeType.OptField;

            SystemToolTip = "测试";

            //云节点标记
            IsCloud = true;
        } 
     
        public Employee Emp { get; set; }=new Employee();
    }

    public enum Gender
    {
        [Display(Name = "男")]
        Man,
        [Display(Name = "女")]
        Woman 
    }


    /// <summary>
    /// Serializable特性，用于Clone
    /// </summary>
    [Serializable]
    public class Employee:IDataErrorInfo
    {
        /// <summary>
        /// 特性Display需要引用System.ComponentModel.DataAnnotations
        /// </summary> 
        [Display(Name = "姓名",GroupName = "个人信息")]
        public string Name { get; set; }

        [Display(Name = "性别", GroupName = "个人信息")]
        public Gender Gender { get; set; }
         

        [Display(Name = "工资", GroupName = "工作信息")]
        public int Salary { get; set; }

        [Display(Name = "电话", GroupName = "工作信息", Description = "以P字母结尾")]
        public string PhoneNum { get; set; }

        
        [Display(Name = "时间", GroupName = "工作信息")]
        public DateTime StartingDate { get; set; }

        [ReadOnly(true)]
        [Display(Name = "创建日志", GroupName = "日志")]
        public DateTime CreateTime { get; set; }=DateTime.Now;

        #region 用于验证 IDataErrorInfo
     
        public string this[string columnName]
        {
            get
            {
                if (columnName == nameof(Salary))
                {
                    return this.Salary < 100 && this.Salary > 0 ? string.Empty : "Value should be in the range of (0, 100)";
                }
                if (columnName == nameof(PhoneNum))
                {
                    return this.PhoneNum != null && Regex.IsMatch(this.PhoneNum, @"^[0-9]+[\p{L}]") ? string.Empty : @"Value should math the regex: ^[0-9]+[\p{L}]";
                }
                if (columnName == nameof(StartingDate))
                {
                    return this.StartingDate.Year > 1900 ? string.Empty : "Date should be after 1/1/1900";
                }
                return string.Empty;
            }
        }

        [Browsable(false)]
        public string Error { get; }
        #endregion

    }
}

定义节点编辑器

using System.Collections.Generic;
using System.ComponentModel;
using System.Windows.Data;
using BcDataMining.DataExtension;
using BcDataMining.EditorEx;
using BcDataMining.Node;
using BcDataMining.Node.Define;
using Telerik.Windows.Controls.Data.PropertyGrid;
using TelerikHelper;

namespace BcDataMining.NodeEditor
{
    /// <summary>
    /// 命名规则为：节点名+Editor，需遵循INodeEditor接口
    /// </summary>
    public partial class NodeGeoTestEditor : INodeEditor, INotifyPropertyChanged,
        INodeEditorDefaultSize//接口INodeEditorDefaultSize，用于设置节点编辑器的初始尺寸
    {
        public NodeGeoTestEditor()
        {
            InitializeComponent();
        }
        private NodeGeoTest _eNode;

        public NodeGeoTest ENode
        {
            get { return _eNode; }
            set
            {
                _eNode = value;
                PropertyChanged.Raise(() => ENode);
            }
        }

        public string Title { get; set; }
        public bool LoadParameters(INode aNode)
        {
            if (!(aNode is NodeGeoTest)) return false;
            ENode = aNode as NodeGeoTest;

            PropertyGrid1.Item = ENode.Emp.Clone();//克隆一个值，而不是在原来值上修改。
            return true;
        }

        public bool SaveParameters()
        {
            ENode.Emp=PropertyGrid1.Item as Employee;
            return true;
        }

        public void AppendEditor(List<INodeEditor> nodeEditors)
        {
            tabControl1.AppendEditors(nodeEditors);
        }

        public event PropertyChangedEventHandler PropertyChanged;


        /// <summary>
        /// 添加验证事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void PropertyGrid1_OnAutoGeneratingPropertyDefinition(object sender, AutoGeneratingPropertyDefinitionEventArgs e)
        {
            (e.PropertyDefinition.Binding as Binding).ValidatesOnDataErrors = true;
            (e.PropertyDefinition.Binding as Binding).NotifyOnValidationError = true;
        }
    }
}

对应的xaml文件。

<UserControl x:Class="BcDataMining.NodeEditor.NodeGeoTestEditor"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             xmlns:local="clr-namespace:BcDataMining.NodeEditor"
             xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"
             mc:Ignorable="d" 
             d:DesignHeight="450" d:DesignWidth="800" 
             Width="810" Height="570"> <!--Width,Height,用于设置节点编辑器的初始尺寸,类需遵循INodeEditorDefaultSize-->
    <Grid>
        <telerik:RadTabControl HorizontalAlignment="Stretch" x:Name="tabControl1" Margin="0" TabStripPlacement="Top"
                    VerticalAlignment="Stretch" Grid.RowSpan="3">

            <telerik:RadTabItem Header="设置" IsSelected="True">
                <Grid Margin="0">
                    <telerik:RadPropertyGrid Grid.Row="0" x:Name="PropertyGrid1" IsGrouped="True"
                                             AutoGeneratingPropertyDefinition="PropertyGrid1_OnAutoGeneratingPropertyDefinition" />

                    <!--<telerik:RadPropertyGrid Grid.Row="0" x:Name="PropertyGrid1" 
                                             RenderMode="Flat" 
                                             AutoGeneratePropertyDefinitions="False"  
                                             IsGrouped="True">
                        <telerik:RadPropertyGrid.PropertyDefinitions>
                            <telerik:PropertyDefinition Binding="{Binding FirstName}" GroupName="Group Name" DisplayName="First Name" Description="姓氏"/>
                            <telerik:PropertyDefinition Binding="{Binding LastName}" GroupName="Group Name" DisplayName="Last Name" Description="名字"/>
                            <telerik:PropertyDefinition Binding="{Binding Occupation}" GroupName="Group Title" DisplayName="Title"/>
                            <telerik:PropertyDefinition Binding="{Binding Gender}" GroupName="Group Gender" DisplayName="性别"/>
                        </telerik:RadPropertyGrid.PropertyDefinitions>
                    </telerik:RadPropertyGrid>-->
                </Grid>
            </telerik:RadTabItem>

        </telerik:RadTabControl>
    </Grid>
</UserControl>  

节点的图标定义。图标大小建议小于100*100像素。

<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                    xmlns:sys="clr-namespace:System;assembly=mscorlib">

    <!--命名规则，Stl+节点名称。图片的生成操作需指定为 Resource-->
    <ImageBrush x:Key="StlNodeGeoTest" ImageSource="/ExGeoistEditor;component/Images/NodeGeoTest.png"
                Stretch="Fill" TileMode="None"
                Viewport="10,10,30,30" ViewportUnits="Absolute" />
 
</ResourceDictionary>

节点效果：