WebContorl示例--PopupFormTextBox

PopupFormTextBox代码

using  System;
using  System.Collections.Generic;
using  System.ComponentModel;
using  System.Text;
using  System.Web;
using  System.Web.UI;
using  System.Web.UI.WebControls;
using  System.Drawing.Design;

[assembly: WebResource( " WebUIControl.Js.ButtonEdit.js " ,  " application/x-javascript " )]
[assembly: WebResource( " WebUIControl.Images.ico_view.gif " ,  " image/gif " )]   
namespace  WebUIControl
{
     ///   <summary>
     ///  PopupFormURL为选取页面URL，js返回对象必须包含EditValue和DisplayValue属性。
     ///   </summary>
    [DefaultProperty( " PopupFormUrl " )]
    [ToolboxData( " <{0}:ButtonEdit runat=server></{0}:ButtonEdit> " )]
     public   class  ButtonEdit : CompositeControl
    {
         // 记录Value、即DisplayValue
         private  TextBox _textBox;
         // 记录ID、即EditValue
         private  HiddenField _hiddenField;
         private  ImageButton _imageButton;

         #region  Appearance
        [Browsable( false )]
        [Themeable( false )]
         public   string  EditValue
        {
             get
            {
                 this .EnsureChildControls();
                 return   this ._hiddenField.Value;
            }
             set
            {
                 this .EnsureChildControls();
                 this ._hiddenField.Value  =  value;
            }
        }

         ///   <summary>
         ///  返回显示值的文本框
         ///   </summary>
        [Browsable( false )]
         public  TextBox TextBox
        {
             get
            {
                EnsureChildControls();
                 return  _textBox;
            }
        }

         ///   <summary>
         ///  返回隐藏控件
         ///   </summary>
        [Browsable( false )]
         public  HiddenField HiddenField
        {
             get  { EnsureChildControls();
                 return  _hiddenField; }
        }

        [Browsable( false )]
        [Themeable( false )]
         public   string  DisplayValue
        {
             get
            {
                 this .EnsureChildControls();
                 return   this ._textBox.Text;
            }
             set
            {
                 this .EnsureChildControls();
                 this ._textBox.Text  =  value;
            }
        }

        [Bindable( true )]
        [Category( " Appearance " )]
        [DefaultValue( "" )]
        [Localizable( true )]
         // [CssClassProperty]
         public   string  TextCssClass
        {
             get
            {
                 object  obj  =   this .ViewState[ " TextCssClass " ];
                 if  (obj  !=   null )
                {
                     return  ( string )obj;
                }
                 return   string .Empty;
            }
             set
            {
                 this .EnsureChildControls();
                 this .ViewState[ " TextCssClass " ]  =  value;
                 this ._textBox.CssClass  =  value;
            }
        }

        [Bindable( true )]
        [Category( " Appearance " )]
        [DefaultValue( "" )]
        [Localizable( true )]
         // [CssClassProperty]
         public   string  ImageCssClass
        {
             get
            {
                 object  obj  =   this .ViewState[ " ImageCssClass " ];
                 if  (obj  !=   null )
                {
                     return  ( string )obj;
                }
                 return   string .Empty;
            }
             set
            {
                 this .EnsureChildControls();
                 this .ViewState[ " ImageCssClass " ]  =  value;
                 this ._imageButton.CssClass  =  value;
            }
        }

         #endregion

         #region  PopupForm
        [Bindable( true )]
        [Category( " PopupForm " )]
        [DefaultValue( "" )]
        [Localizable( true )]
        [Editor( " System.Web.UI.Design.UrlEditor, System.Design " ,  typeof (UITypeEditor))]
         public   string  PopupFormUrl
        {
             get
            {
                String s  =  (String)ViewState[ " PopupFormUrl " ];
                 return  ((s  ==   null )  ?  String.Empty : s);
            }
             set
            {
                ViewState[ " PopupFormUrl " ]  =  value;
            }
        }

        [Bindable( true )]
        [Category( " PopupForm " )]
        [DefaultValue( 640 )]
        [Localizable( true )]
         public   int  PopupFormWidth
        {
             get
            {
                 object  obj  =  ViewState[ " PopupFormWidth " ];
                 if  (obj  !=   null )
                {
                     return  ( int )obj;
                }

                 return   640 ;
            }
             set
            {
                 this .ViewState[ " PopupFormWidth " ]  =  value;
            }
        }

        [Bindable( true )]
        [Category( " PopupForm " )]
        [DefaultValue( 800 )]
        [Localizable( true )]
         public   int  PopupFormHeight
        {
             get
            {
                 object  obj  =  ViewState[ " PopupFormHeight " ];
                 if  (obj  !=   null )
                {
                     return  ( int )obj;
                }

                 return   800 ;
            }
             set
            {
                 this .ViewState[ " PopupFormHeight " ]  =  value;
            }
        }
         #endregion

         protected   override   void  OnInit(EventArgs e)
        {
             base .OnInit(e);
             if  ( ! Page.ClientScript.IsClientScriptIncludeRegistered(Page.GetType(),  " ButtonEdit " ))
            {
                 string  webUrl  =  Page.ClientScript.GetWebResourceUrl(GetType(),  " WebUIControl.Js.ButtonEdit.js " );
                Page.ClientScript.RegisterClientScriptInclude(Page.GetType(),  " ButtonEdit " , webUrl);
            }
             this .EnsureChildControls();

             this ._imageButton.ImageUrl  =  Page.ClientScript.GetWebResourceUrl( this .GetType(),  " WebUIControl.Images.ico_view.gif " );
        }
         protected   override   void  OnLoad(EventArgs e)
        {
             base .OnLoad(e);
             this .EnsureChildControls();

             string  path  =  HttpUtility.UrlPathEncode( this .ResolveClientUrl( this .PopupFormUrl));
             this .Attributes.Add( " PopupFormUrl " ,path);
             if  ( this .PopupFormWidth  !=   640 )
            {
                 this .Attributes.Add( " PopupFormWidth " ,  this .PopupFormWidth.ToString());
            }
             if  ( this .PopupFormHeight  !=   800 )
            {
                 this .Attributes.Add( " PopupFormHeight " ,  this .PopupFormHeight.ToString());
            }
             this ._textBox.Attributes.Add( " ReadOnly " ,  " ReadOnly " );
             this ._imageButton.Attributes.Add( " onclick " ,  "  return PL_ButtonEdit_PopupForm(' "   +   this .ClientID  +   " '); " );
        }

         protected   override   void  CreateChildControls()
        {
             this .Controls.Clear();
             this ._textBox  =   new  TextBox();
             this ._imageButton  =   new  ImageButton();
             this ._hiddenField  =   new  HiddenField();
             this .Controls.Add( this ._textBox);
             this .Controls.Add( this ._imageButton);
             this .Controls.Add( this ._hiddenField);
             this .ClearChildViewState();
        }

         protected   override   void  LoadViewState( object  savedState)
        {
             base .LoadViewState(savedState);
            EnsureChildControls();
             this .ViewState[ " TextCssClass " ]  =   this ._textBox.CssClass;
             this .ViewState[ " ImageCssClass " ]  =   this ._imageButton.CssClass;
        }
    }
}

 

 

 

js代码

// 作为嵌入的资源
function  PL_ButtonEdit_PopupForm(id)
{
     var  control  =  document.getElementById(id);
     if  (control  !=   null   &&  control !=  undefined)
    {
        url  =  control.PopupFormUrl;
         if (url  !=   null   &&  url  !=  undefined)
        {
             var  width  =   ' 640 ' ;
             if (control.PopupFormWidth  !=  undefined)
                width  =  control.PopupFormWidth;
             var  height  =   ' 800 ' ;
             if (control.PopupFormHeight  !=  undefined)
                height  =  control.PopupFormHeight;
             var  param  =   ' dialogWidth: '   +  width  +   ' px;dialogHeight: '   +  height  +   ' px;help:no;resizable:no;status:no ' ;
             // 返回对象必须包含EditValue和DisplayValue属性
             var  ret  =  window.showModalDialog(url, '' ,param);
             if  (ret  !=   null   &&  ret !=  undefined)
            {
                control.firstChild.readonly  = ""  ;
                control.firstChild.value  =  ret.DisplayValue;
                control.firstChild.readonly  = " readonly " ;
                control.lastChild.value  =  ret.EditValue;
            }
        }
    }
     return   false ;
}