using System;

using System.Windows.Forms;

namespace Simon.WinForms.Examples.PropertyGrid

{

    public class EditorControl : UserControl

    {

        public EditorControl()

        {

            this.label1 = new System.Windows.Forms.Label();

            this.label1.AutoSize = true;

            this.label1.Location = new System.Drawing.Point(, );

            this.label1.Name = "label1";

            this.label1.Size = new System.Drawing.Size(, );

            this.label1.TabIndex = ;

            this.label1.Text = "名称：";  

            this.comboBox1 = new System.Windows.Forms.ComboBox();

            this.comboBox1.FormattingEnabled = true;

            this.comboBox1.Items.AddRange(new object[] {

            "名称一",

            "名称二",

            "名称三",

            "名称四"});

            this.comboBox1.Location = new System.Drawing.Point(, );

            this.comboBox1.Name = "comboBox1";

            this.comboBox1.Size = new System.Drawing.Size(, );

            this.comboBox1.TabIndex = ;

            this.comboBox1.SelectedIndexChanged += new System.EventHandler(this.comboBox1_SelectedIndexChanged);  

            this.SuspendLayout();

            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);

            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;

            this.Controls.Add(this.comboBox1);

            this.Controls.Add(this.label1);

            this.Name = "EditorControl";

            this.Size = new System.Drawing.Size(, );

            this.ResumeLayout(false);

            this.PerformLayout();

        }  

        private Label label1;

        private ComboBox comboBox1;  

        public string result = "";

        private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)

        {

            result = comboBox1.SelectedItem.ToString();

        }

    }

}  

using System.Drawing.Design;

using System.Windows.Forms.Design;  

namespace Simon.WinForms.Examples.PropertyGrid

{

    public class Editor : UITypeEditor

    {

        public override UITypeEditorEditStyle GetEditStyle(System.ComponentModel.ITypeDescriptorContext context)

        {

            // 编辑属性值时，在右侧显示...更多按钮

            return UITypeEditorEditStyle.Modal;

        }  

        public override object EditValue(System.ComponentModel.ITypeDescriptorContext context, System.IServiceProvider provider, object value)

        {

            var edSvc = provider.GetService(typeof(IWindowsFormsEditorService)) as IWindowsFormsEditorService;

            if (edSvc != null)

            {

                var popedControl = new EditorControl();

                // 还有ShowDialog这种方式，可以弹出一个窗体来进行编辑

                edSvc.DropDownControl(popedControl);

                value = popedControl.result;

            }

            return base.EditValue(context, provider, value);

        }

    }

}  

using System.ComponentModel;  

namespace Simon.WinForms.Examples.PropertyGrid

{

    public class ShowedClass

    {

        [DisplayName("名称")]

        [Editor(typeof(Editor), typeof(System.Drawing.Design.UITypeEditor))]

        public string Name { get; set; }  

        [Editor(typeof(Editor), typeof(System.Drawing.Design.UITypeEditor))]

        public string Description { get; set; }

    }

}  

propertyGrid1.SelectedObject = new ShowedClass() { Name="我没名字"};