怎么设置propertyGridControl中的选项为CheckedListBox

Question

这是propertyGridControl对应的对象
public class MemberLevelSelect : TacticMemberSelectBase
    {
        public MemberLevelSelect()
        {
            this.tacticType = TacticTypeEnum.Target;
        }
        public override string ToString()
        {
            return "会员等级";
        }
        string presentChoose = string.Empty;
        [EditorAttribute(typeof(ListBoxUCConverter), typeof(System.Drawing.Design.UITypeEditor)),
             CategoryAttribute("会员等级选择"), DisplayName("会员等级"), DescriptionAttribute("会员等级")]
        public string DefaultFileName
        {
            get { return presentChoose; }
            set { presentChoose = value; }
        }    }
我想把等级选择这个属性在propertyGridControl中显示为CheckedListBox类型.下面代码是ListBoxUCConverter的实现
public class CheckedListBoxUC : DevExpress.XtraEditors.CheckedComboBoxEdit
    {
        private System.Windows.Forms.Design.IWindowsFormsEditorService m_iws;        private string m_selectStr = string.Empty;        /// <summary>
        /// 获取选择的字段，多个字段用"|"隔开
        /// </summary>
        public string SelectedFields
        {
            get
            {
                return this.m_selectStr;
            }        }
        public CheckedListBoxUC(System.Windows.Forms.Design.IWindowsFormsEditorService iws)
        {
            this.m_iws = iws;
            this.Visible = true;
            this.Height = 100;
            //添加事件
            this.Leave += new EventHandler(checkedListBoxUC_Leave);            try
            {
                
                this.Properties.Items.AddRange(new DevExpress.XtraEditors.Controls.CheckedListBoxItem[] {
                     new DevExpress.XtraEditors.Controls.CheckedListBoxItem(null, "1212"),
                     new DevExpress.XtraEditors.Controls.CheckedListBoxItem(null, "21234")});
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
            finally
            {
                this.EndUpdate();
            }
        }        void checkedListBoxUC_Leave(object sender, EventArgs e)
        {
            List<string> lstStrs = new List<string>();
            for (int i = 0; i < this.Properties.Items.Count; i++)
            {
                if (this.Properties.Items[i].CheckState == CheckState.Unchecked)
                {
                    lstStrs.Add(this.Properties.Items[i].ToString());
                }            }
            m_selectStr = string.Join("|", lstStrs.ToArray());
            this.m_iws.CloseDropDown();
        }    }
    public class ListBoxUCConverter : System.Drawing.Design.UITypeEditor
    {
        public override UITypeEditorEditStyle GetEditStyle(ITypeDescriptorContext context)
        {
            return System.Drawing.Design.UITypeEditorEditStyle.DropDown;
        }        public override object EditValue(ITypeDescriptorContext context, IServiceProvider provider, object value)
        {
            IWindowsFormsEditorService iws = (IWindowsFormsEditorService)provider.GetService(typeof(IWindowsFormsEditorService));
            if (iws != null)
            {
                CheckedListBoxUC chkListBoxUC = new CheckedListBoxUC(iws);
                iws.DropDownControl(chkListBoxUC);
                return chkListBoxUC.SelectedFields;
            }
            return value;
        }
    }但是结果时,我点下拉框时,下拉框闪一下就没了.求大侠帮忙

Answer 1

你的这个方法checkedListBoxUC_Leave中，有this.m_iws.CloseDropDown()，是否是它导致的关闭你可以确认一下，设置一个断点，看会不会走那里；如果是，那可能是DevExpress控件的问题；
其实，checkedListBoxUC_Leave 这个方法你完全可以去掉，而在最后的 EditValue 方法return 时，join那个字符串，这样更合理些。

Answer 2

高手,去掉this.m_iws.CloseDropDown()这行就好用了.不过我怎么去取CheckedListBoxUC里的值呢?CheckedListBoxUC在ListBoxUCConverter里,而ListBoxUCConverter却又在属性里.况且CheckedListBoxUC我是想存对象的.

Answer 3

csdn不是高手云集吗,哪位大侠帮个忙哦.
"我怎么去取CheckedListBoxUC里的值呢?CheckedListBoxUC在ListBoxUCConverter里,而ListBoxUCConverter却又在属性里.况且CheckedListBoxUC我是想存对象的"

Answer 4

ListBoxUCConverter 的EditValue方法  的返回值 就是；
这个值在ListBoxUCConverter，关闭时，会填在 propertyGrid 的编辑框上；还是那句话：
其实，checkedListBoxUC_Leave 这个方法你完全可以去掉，而在最后的 EditValue 方法return 时，join那个字符串，这样更合理些。

Answer 5

麻烦你,再问一个问题.
我想把ListBoxUCConverter 这个类写成通用的类,也就要把CheckedListBoxUC的构造方法的这句
this.Properties.Items.AddRange(new DevExpress.XtraEditors.Controls.CheckedListBoxItem[] {
  new DevExpress.XtraEditors.Controls.CheckedListBoxItem(null, "1212"),
  new DevExpress.XtraEditors.Controls.CheckedListBoxItem(null, "21234")});
  }
改为动态加载.
但使用ListBoxUCConverter 这个属性时
[EditorAttribute(typeof(ListBoxUCConverter), typeof(System.Drawing.Design.UITypeEditor))]
这句话根本没地方传递参数啊,也就没办法向CheckedListBoxUC里传递参数.
怎么解决呢?不至于一个下拉列表定义一个编辑器吧.
谢谢了大神,结贴时一定给你多加分~

Answer 6

我算帮你帮到家了，谁让俺今天心情不错呢？你快点结贴吧        public override object EditValue(ITypeDescriptorContext context, IServiceProvider provider, object value)
        {
            IWindowsFormsEditorService iws = (IWindowsFormsEditorService)provider.GetService(typeof(IWindowsFormsEditorService));
            if (iws != null)
            {
                CheckedListBoxUC chkListBoxUC = new CheckedListBoxUC(iws);                switch (context.PropertyDescriptor.Category)
                {
                    case "会员等级选择":
                        //给chkListBoxUC加相关项
                        break;
                    case"其它":
                        break;
                }
                iws.DropDownControl(chkListBoxUC);
                return chkListBoxUC.SelectedFields;
            }
            return value;
        }

Answer 7

请问大侠能帮我一个小小的忙吗？我想在propertyGridControl里显示数据，并且是可编辑的。该怎么办呢？

Answer 8

能给我看下 你的界面是什么样的吗？
因为我也需要在propertyGridControl中将性别显示成下拉的男或女。
不过我只是学习阶段，大学生一名，望多多指教啊。

Answer 9

我的那个现在改成下拉显示自定义控件了.你可以参考一下
对象属性:
[EditorAttribute(typeof(ListBoxUCConverter), typeof(System.Drawing.Design.UITypeEditor)),
             CategoryAttribute("设置"), DisplayName(CategoryDisplayEnum.MemberLevelSelect), DescriptionAttribute("会员等级")]
        public TacticMemberDetailArrayList MemberLevelChoose
        {
            get { return memberLevelChoose; }
            set { memberLevelChoose = value; }
        }
属性转换器
public class ListBoxUCConverter : System.Drawing.Design.UITypeEditor
    {
        private List<TacticMemberDetailBase> tacticMemberDetailList = new List<TacticMemberDetailBase>();
        public ListBoxUCConverter()
        {
        }
        public override UITypeEditorEditStyle GetEditStyle(ITypeDescriptorContext context)
        {
            return System.Drawing.Design.UITypeEditorEditStyle.DropDown;
        }        public override object EditValue(ITypeDescriptorContext context, IServiceProvider provider, object value)
        {
            IWindowsFormsEditorService iws = (IWindowsFormsEditorService)provider.GetService(typeof(IWindowsFormsEditorService));
            if (iws != null)
            {                PropertyChoose propertyChoose = new PropertyChoose(iws);
                this.QueryCommonData(context.PropertyDescriptor.DisplayName, propertyChoose,value);                iws.DropDownControl(propertyChoose);                return propertyChoose.TacticMemberDetailLst;
            }
            return value;
        }
其中PropertyChoose是下拉后显示的控件.
[Serializable]
    public partial class PropertyChoose : BaseUserControl
    {
        public PropertyChoose(System.Windows.Forms.Design.IWindowsFormsEditorService iws)
        {
            InitializeComponent();
            this.m_iws = iws;
            this.Visible = true;            //添加事件
            this.Leave += new EventHandler(CheckedListBoxUC_Leave);
        }
        private System.Windows.Forms.Design.IWindowsFormsEditorService m_iws;        private TacticMemberDetailArrayList tacticMemberDetailLst = new TacticMemberDetailArrayList();        private DataSet ds = new DataSet();        private string displayEnum;        /// <summary>
        /// 获取选择的字段，多个字段用"|"隔开
        /// </summary>
        public TacticMemberDetailArrayList TacticMemberDetailLst
        {
            get
            {
                return this.tacticMemberDetailLst;
            }
        }        private void CheckedListBoxUC_Leave(object sender, EventArgs e)
        {
            tacticMemberDetailLst.Clear();
            this.gridView2.CloseEditor();
            if (ds == null || ds.Tables.Count == 0)
            {
                return;
            }
            foreach (DataRow dr in this.ds.Tables[0].Rows)
            {
                switch (displayEnum)
                {
                    case CategoryDisplayEnum.MemberLevelSelect:
                        {
                            if (!(bool)dr["Chk"]) break;
                            if ((bool)dr["Chk"])
                            {
                                MemberLevel p = new MemberLevel(dr["Name"].ToString(), dr["Id"].ToString());
                                tacticMemberDetailLst.Add(p);
                            }
                            break;
                        }