WebDialog，谁想出来的真牛。

WebDialog  1using System; 2using System.ComponentModel; 3using System.Text; 4using System.Collections; 5using System.Web.UI; 6using System.Web.UI.WebControls; 7 8namespace PowerAsp.NET.Comtrols 9{10    /**//// <summary>11    /// 12    /// </summary>13    /// 14    [ToolboxItemFilter("System.Web.UI",ToolboxItemFilterType.Require),15    Designer(typeof(PowerAsp.NET.Designer.WebDialogDesigner))16    ]17    public class WebDialog:Component18    {19        public WebDialog()20        {21        }22        private enum DialogMode23        {24            None = 0,25            Alert = 126        }27        private Page _page = null;28        private bool _isHooked = false;2930        private const string SCP_SCRIPT_START = "\n<script language=\"javascript\">\n";31        private const string SCP_ALERT = "window.alert('{0}');\n";32        private const string SCP_SCRIPT_END = "</script>\n";3334        private string _mesage = null;35        private DialogMode _mode = DialogMode.None;3637        [Browsable(false),38        DefaultValue(null)39        ]40        public Page _Page41        {42            get43            {44                return _page;45            }46            set47            {48                _page = value;49            }50        }5152        private void HookedPagePreRender(object sender,EventArgs args)53        {54            if(DialogMode.Alert ==  _mode)55            {56                _page.RegisterStartupScript(this.GetHashCode().ToString(),57                    SCP_SCRIPT_START+string.Format(SCP_ALERT,_mesage)+SCP_SCRIPT_END);58            }59        }6061        private void HookPageLoad()62        {63            if((!_isHooked) && (_page != null))64            {65                _page.PreRender +=new EventHandler(HookedPagePreRender);66                _isHooked = true;67            }68        }69        public void ShowAlertDialog(string message)70        {71            _mode = DialogMode.Alert;72            _mesage = message;73            HookPageLoad();74        }75    }76}77 ComponentDesigner  1using System; 2using System.ComponentModel; 3using System.ComponentModel.Design; 4using System.Web.UI; 5using PowerAsp.NET.Comtrols; 6 7namespace PowerAsp.NET.Designer 8{ 9    /**//// <summary>10    /// WebDialogDesigner 的摘要说明。11    /// </summary>12    public class WebDialogDesigner:ComponentDesigner13    {14        public override void Initialize(IComponent component)15        {16            base.Initialize (component);//要先调，不知道为啥。171819            IContainer container = Component.Site.Container;20            foreach(IComponent comp in container.Components)21            {22                if(comp is Page)23                {24                    ((WebDialog)component)._Page = (Page)comp;25                }26            }  27        }2829        public WebDialogDesigner()30        {31        }32    }33}34

转载于:https://www.cnblogs.com/nanshouyong326/archive/2006/12/15/593403.html

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