old_flsystem/类库/UI.Framework/Entitys/PropertyGridRichText.cs

using DevExpress.XtraRichEdit;
using System;
using System.Collections.Generic;
using System.Drawing.Design;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Windows.Forms.Design;

namespace UI.Framework.Entitys
{
    /// <summary> 
    /// PropertyGridMutiText 的摘要说明。 
    /// </summary>

    public class PropertyGridRichText : PropertyGridEditStyle
    {
       

        public PropertyGridRichText()
        {
            RichEditControl box = new RichEditControl();
            box.ActiveViewType = DevExpress.XtraRichEdit.RichEditViewType.Simple;
            Control = box;
        }

        public override string GetValue()
        {
            return Control.Text;
        }

        public override void SetValue(object value)
        {
            Control.Text = value as string;
        }
    }


    public abstract class PropertyGridEditStyle : UITypeEditor
    {
        protected  UITypeEditorEditStyle UITypeEditorEditStyle = UITypeEditorEditStyle.DropDown;
        protected Control  Control = null;
        public abstract string GetValue();
        public abstract void SetValue(object value);
        public override UITypeEditorEditStyle GetEditStyle(System.ComponentModel.ITypeDescriptorContext context)
        {
            return UITypeEditorEditStyle;
        }

        public override object EditValue(System.ComponentModel.ITypeDescriptorContext context, System.IServiceProvider provider, object value)
        {
            try
            {
                IWindowsFormsEditorService edSvc = (IWindowsFormsEditorService)provider.GetService(typeof(IWindowsFormsEditorService));
                if (edSvc != null)
                {
                    SetValue(value);
                     if(UITypeEditorEditStyle == UITypeEditorEditStyle.DropDown) edSvc.DropDownControl(Control);
                    return GetValue();
                }
            }
            catch (Exception )
            {
                return value;
            }
            return value;
        }
    }
}