在管理系统中常用的 文本框弹出选择框 自定义控件（1）

图：

要求：

1，弹出框可以是定义好的样式，如上图，有搜索板面和被选择列表，也可以是自由页面

2，显示的列数据为可配置

3，搜索的列数据为可配置

4，可以在弹出框中进行查询

5，在弹出框中的列表进行分页

6，选中后返回TEXT/VALUE键值对

7，选中后可以返回同页面其它控件需要的值

8，弹出框里的数据为可配置

9，支持jquery表单验证插件

10，支持在选中后触发客户端事件

11，支持在选中后触发服务器端事件

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.ComponentModel;
using System.Security.Permissions;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Drawing;
namespace CustomControl
{
    [
    AspNetHostingPermission(SecurityAction.Demand,
        Level = AspNetHostingPermissionLevel.Minimal),
    AspNetHostingPermission(SecurityAction.InheritanceDemand, 
        Level=AspNetHostingPermissionLevel.Minimal),
    DefaultProperty("Text"),
    ToolboxData("<{0}:TextBoxSelect runat=\"server\"> </{0}:TextBoxSelect>")    
    ]
    [ToolboxBitmap(@"G:\CustomControl\Resources\Icons\TextBoxSelect.png")]
    
    publicclass TextBoxSelect : CompositeControl
    {
        #region Value Property
        ///<summary>
        /// Control Text
        ///</summary>
publicstring Text
        {
            get
            {
                if (txt ==null)
                    return String.Empty;
                return txt.Text;
            }
            set { txt.Text = value; }
        }
        ///<summary>
        /// Control Value
        ///</summary>
publicstring Value
        {
            get
            {
                if (hidden ==null)
                    return String.Empty;
                return hidden.Value;
            }
            set { hidden.Value = value; }
        }
        #endregion
        #region Appearance Property
        ///<summary>
        /// TextBox Css
        ///</summary>
publicstring TextBoxClass
        {
            get
            {
                object o = ViewState["TextBoxClass"];
                if (o ==null)
                    return String.Empty;
                return (string)o;
            }
            set { ViewState["TextBoxClass"] = value; }
        }
        ///<summary>
        /// Image Button Css
        ///</summary>
publicstring ImageButtonClass
        {
            get
            {
                object o = ViewState["ImageButtonClass"];
                if (o ==null)
                    return String.Empty;
                return (string)o;
            }
            set { ViewState["ImageButtonClass"] = value; }
        }
        #endregion
        #region OpenWindow Property
        ///<summary>
        /// Dialog Mode Default or Custom
        ///</summary>
public DialogModes DialogMode
        {
            get
            {
                object o = ViewState["DialogMode"];
                if (o ==null)
                    return DialogModes.Default;
                return (DialogModes)o;
            }
            set { ViewState["DialogMode"] = value; }
        }
        ///<summary>
        /// Dialog Url(If DialogMode equal Default then the url is /UserControl/TextBoxSelectDialogDefault.aspx
        /// else is the value of this property)
        ///</summary>
publicstring DialogUrl
        {
            get
            {
                object o = ViewState["DialogUrl"];
                if (o ==null)
                    returnstring.Empty;
                return (string)o;
            }
            set { ViewState["DialogUrl"] = value; }
        }
        ///<summary>
        /// XML DataKey
        ///</summary>
publicstring DataKey
        {
            get
            {
                object o = ViewState["DataKey"];
                if (o ==null)
                    returnstring.Empty;
                return (string)o;
            }
            set { ViewState["DataKey"] = value; }
        }
        ///<summary>
        /// Being set value controls's ID separates with ","
        /// Note: the control has to contain "value" property in the HTML DOM
        ///</summary>
publicstring SetValueControlIDList
        {
            get
            {
                object o = ViewState["SetValueControlIDList"];
                if (o ==null)
                    returnstring.Empty;
                return (string)o;
            }
            set { ViewState["SetValueControlIDList"] = value; }
        }
        ///<summary>
        /// The field in database data will be set to controls,which separate with ","
        ///</summary>
publicstring SetValueControlFieldList
        {
            get
            {
                object o = ViewState["SetValueControlFieldList"];
                if (o ==null)
                    returnstring.Empty;
                return (string)o;
            }
            set { ViewState["SetValueControlFieldList"] = value; }
        }
        #endregion
        #region Validation Property
        public RegexEnum ValType
        {
            get
            {
                object o = ViewState["ValType"];
                if (o ==null)
                    return RegexEnum.Null;
                return (RegexEnum)o;
            }
            set { ViewState["ValType"] = value; }
        }
        publicstring ValMsg
        {
            get
            {
                object o = ViewState["ValMsg"];
                if (o ==null)
                    returnstring.Empty;
                return (string)o;
            }
            set { ViewState["ValMsg"] = value; }
        }
        #endregion
        public TextBoxSelect()
        {
            txt =new TextBox();
            hidden =new HiddenField();
            
        }
        protectedoverridevoid OnPreRender(EventArgs e)
        {
            base.OnPreRender(e);
            Page.ClientScript.RegisterClientScriptResource(this.GetType(), "CustomControl.Resources.Scripts.TextBoxSelect.js");
            Style.Add(HtmlTextWriterStyle.WhiteSpace, "nowrap");
            if (!DesignMode)
            Page.Trace.Write("OnPreRender");
        }
        protectedoverridevoid CreateChildControls()
        {
            Controls.Clear();
            CreateControlHierarchy();
            ClearChildViewState();
        }
        private HiddenField hidden;
        private TextBox txt;
        protectedvirtualvoid CreateControlHierarchy()
        {
            
            Panel container =new Panel();
            
            txt.ID ="text";
            txt.Text =this.Text;
            if (TextBoxClass !=string.Empty)
            {
                txt.CssClass = TextBoxClass;
            }
            else
            {
                txt.CssClass ="textbox";
            }
            if (Width !=0) txt.Width = Width;

            
            hidden.Value = Value;
            hidden.ID ="value";
            Button btn =new Button();
            btn.Text ="...";
            btn.ID ="btn";
            string strJS =string.Empty;
            if (DialogMode == DialogModes.Default)
            {
                //function ShowDialog(url,SetValueControlIDList, SetValueControlFieldList,this.ClientID) 
                strJS =string.Format("javascript:return ShowDialog('{0}?key={1}','{2}','{3}','{4}');",
                   "/UserControl/TextBoxSelectDialogDefault.aspx", DataKey, SetValueControlIDList, SetValueControlFieldList, this.ClientID);
            }
            elseif (DialogMode == DialogModes.Custom)
            {
                strJS =string.Format("javascript:return ShowDialog('{0}','{1}','{2}','{4}');",
                                     DialogUrl, DataKey, SetValueControlIDList, SetValueControlFieldList,this.ClientID);
            }
            btn.OnClientClick = strJS;
            if (ValType != RegexEnum.Null && ValMsg!=string.Empty)
            {
                txt.Attributes.Add("ValType", ValType.ToString());
                txt.Attributes.Add("ValMsg", ValMsg);
            }
            txt.Attributes.Add("ondblclick", strJS);
            txt.Attributes.Add("onkeydown", "return false;");
            txt.Attributes.Add("onpaste", "return false;");
            if (ImageButtonClass !=string.Empty)
            {
                btn.CssClass = ImageButtonClass;
            }
            else
            {
                btn.CssClass ="TextBoxSelectImage";
            }
            Controls.Add(txt);
            Controls.Add(hidden);
            Controls.Add(btn);
            if(!DesignMode )
            Page.Trace.Write("CreateChildControls");
        }
    }
    publicenum DialogModes { Default, Custom }
    publicenum RegexEnum { Null, NotNull, Int, IntOrNull, Num, NumOrNull, Date, Email, QQ, Chinese }
}