Asp.net实用技巧（2）

1. 在Asp.net实用技巧（1） 中提到了如何刷新父页面，那么如果要刷新父页面的父页面的父页面了？那就是刷新祖先页面RefreshAncestorPage。

RefreshAncestorPage#region RefreshAncestorPage
        /**//// <summary>
        /// 刷新指定的祖先页面，注意是"祖先页面"    
        /// </summary>        
        public static void RefreshAncestorPage(HttpResponse Response ,string targetPageTitle ,bool isCloseCurPage)//targetPageTitle 目标页面的title
        {            
            StringBuilder scriptString = new StringBuilder();
            scriptString.Append("<script language = javascript>");
            scriptString.Append("var p = window ;");
            scriptString.Append(string.Format("while(p.document.title != '{0}')" ,targetPageTitle));
            scriptString.Append("{");            
            scriptString.Append("p = p.opener ;");
            scriptString.Append("}");            
            scriptString.Append("p.focus();");
            scriptString.Append("p.refresh();");

            if (isCloseCurPage )
            {
                scriptString.Append( " window.focus();" );
                scriptString.Append( " window.opener=null;" );
                scriptString.Append( " window.close(); " );
            }            

            scriptString.Append("</"+"script>");

            Response.Write(scriptString.ToString());
        }

        /**//*
         需要在Father页面的html中添加如下脚本（在Header中）：
         <script language="javascript">
        function refresh()
        {
            this.location = this.location;
        }
        </script>
         */        
        #endregion

2.如何刷新祖先页面中的某个frame中的page了？

RefreshFrameInAncestorPage#region RefreshFrameInAncestorPage
        /**//// <summary>
        /// 刷新指定的祖先页面中的某个框架的内部页面
        /// </summary>        
        public static void RefreshFrameInAncestorPage(HttpResponse Response ,string ancestorTitle ,string frameName ,string targetUrl ,bool isCloseCurPage)//targetPageTitle 目标页面的title
        {            
            StringBuilder scriptString = new StringBuilder();
            scriptString.Append("<script language = javascript>");
            scriptString.Append("var p = window ;");
            scriptString.Append(string.Format("while(p.document.title != '{0}')" ,ancestorTitle));
            scriptString.Append("{");            
            scriptString.Append("p = p.opener ;");
            scriptString.Append("}");            
            scriptString.Append("p.focus();");
            scriptString.Append(string.Format("p.{0}.location = '{1}';" ,frameName, targetUrl));

            if (isCloseCurPage )
            {
                scriptString.Append( " window.focus();" );
                scriptString.Append( " window.opener=null;" );
                scriptString.Append( " window.close(); " );
            }            

            scriptString.Append("</"+"script>");

            Response.Write(scriptString.ToString());
        }        
        #endregion

3.如何刷新本页面中的其它框架了？

RefreshTargetFrameInSamePage#region RefreshTargetFrameInSamePage
        /**//// <summary>
        /// 从某一框架刷新同一页面中的任意一框架（包括自己所处的框架）
        /// </summary>        
        public static void RefreshTargetFrameInSamePage(HttpResponse Response ,string frameName ,string targetUrl)
        {                
            string scripStr = string.Format("<script language ='javascript'> window.parent.{0}.location= '" ,frameName) +targetUrl + "'";
            scripStr += "</"+"script>" ;            
            Response.Write(scripStr) ;
        }
        #endregion 

4.如何调用祖先页面的脚本？

CallAncestorScriptMethod#region CallAncestorScriptMethod
        /**//// <summary>
        /// 调用祖先页面中的某个框架内部page的脚本 ，如果是调用祖先页面的脚本，targetFrameName传入null
        /// </summary>        
        public static void CallAncestorScriptMethod(HttpResponse Response ,string targetPageTitle ,string targetFrameName ,string methodName ,string[] paraStrs)
        {
            StringBuilder scriptString = new StringBuilder();
            scriptString.Append("<script language = javascript>");
            scriptString.Append("var p = window ;");
            scriptString.Append(string.Format("while(p.document.title != '{0}')" ,targetPageTitle));
            scriptString.Append("{");            
            scriptString.Append("p = p.opener ;");
            scriptString.Append("}");    
            if(targetFrameName != null)
            {
                if(paraStrs == null)
                {
                    scriptString.Append(string.Format("p.frames['{0}'].{1}() ;" ,targetFrameName ,methodName ));
                }
                else
                {
                    string rParaStr = string.Format("'{0}'" ,paraStrs[0]) ;
                    for(int i=1 ;i<paraStrs.Length ;i++)
                    {
                        rParaStr += string.Format(", '{0}'" ,paraStrs[i]) ;
                    }
                    scriptString.Append(string.Format("p.frames['{0}'].{1}({2}) ;" ,targetFrameName ,methodName ,rParaStr));    
                }
            }
            else
            {
                if(paraStrs == null)
                {
                    scriptString.Append(string.Format("p.{0}() ;" ,methodName ));    
                }
                else
                {
                    string rParaStr = string.Format("'{0}'" ,paraStrs[0]) ;
                    for(int i=1 ;i<paraStrs.Length ;i++)
                    {
                        rParaStr += string.Format(", '{0}'" ,paraStrs[i]) ;
                    }
                    scriptString.Append(string.Format("p.{0}({1}) ;" ,methodName ,rParaStr));        
                }
                
            }            

            scriptString.Append("</"+"script>");
            Response.Write(scriptString.ToString());
        }
        #endregion

5.如何调用本页面中其它框架page的脚本？

CallTargetFrameScriptMethodInSamePage#region CallTargetFrameScriptMethodInSamePage
        /**//// <summary>
        /// 调用本页面中其它框架内部page的脚本 ，
        /// </summary>        
        public static void CallTargetFrameScriptMethodInSamePage(HttpResponse Response ,string targetFrameName ,string methodName ,string[] paraStrs)
        {
            StringBuilder scriptString = new StringBuilder();
            scriptString.Append("<script language = javascript>");

            if(paraStrs == null)
            {
                scriptString.Append(string.Format("window.parent.{0}.{1}() ; ;" ,targetFrameName ,methodName));
            }
            else
            {
                string rParaStr = string.Format("'{0}'" ,paraStrs[0]) ;
                for(int i=1 ;i<paraStrs.Length ;i++)
                {
                    rParaStr += string.Format(", '{0}'" ,paraStrs[i]) ;
                }
                scriptString.Append(string.Format("window.parent.{0}.{1}({2}) ; ;" ,targetFrameName ,methodName ,rParaStr));    
            }
                
            scriptString.Append("</"+"script>");
            Response.Write(scriptString.ToString());
        }
        #endregion

         可见上述这些功能都是通过脚本完成的，如果对脚本不熟悉，是不可能做好Web开发的！