三层弹出窗口的关闭，赋值

一、业务逻辑，共有四个界面，底层界面，以及三个业务界面，我统一概括为A,B,C界面

在A界面，点击按钮，弹出B界面

 在B界面点击按钮，弹出C界面 

 进入C界面，点击选择后，将选择的数据，赋值 到B界面 

  并且关闭C界面 

、

 点击B界面的保存，即可关闭B界面，将数据显示在A界面

  二、代码构思

由于B、C界面属于弹出框，无法通过窗体获取到值，但是可以获取A标签，使用弹出一个frame标签（B标签），再在B界面后弹出frame标签（C标签），

关闭的时候，C标签获取的是B标签的ID作为窗体，B标签获取的是A窗体，这样即可关闭，不过涉及到frame标签，每次点击都会弹出，例如此界面，我点击两次，弹出两次

这种情况下，就考虑关闭弹出窗体的同时，清除frame标签缓存，最终实现了

现在是A,B,C标签都有

  现在关闭C标签 

 

 

三、贴代码 

底层界面代码 

    var activeOneDialog;
        function openOneDialog(dialogTitle, dialogHref, dialogWidth, dialogHeight) {
            var dialogProperties = {
                title: dialogTitle,
                 dialogWidth,
                height: dialogHeight,
                modal: true
            }
            var dialogStr = '<div style="position:relative">';
            dialogStr = dialogStr + '<iframe src="' + dialogHref + '" style=" 100%; height: 100%; overflow-x: hidden; overflow-y: auto" id="ifmDialog" frameborder="0" marginheight="0" marginwidth="0"></iframe>';
            dialogStr = dialogStr + '</div>';
            activeOneDialog = $(dialogStr).dialog(dialogProperties);
        }

        function closeOneDialog() {
            $(activeOneDialog).dialog('close');
            var iframe = document.getElementById('ifmDialog');

            //把iframe指向空白页面，这样可以释放大部分内存。 
            iframe.src = 'about:blank';

            try {
                iframe.contentWindow.document.write('');
                iframe.contentWindow.document.clear();
            } catch (e) { }
            //把iframe从页面移除 
            iframe.parentNode.removeChild(iframe);
        }

        var actDialog;
        function openSecondDialog(dialogTitle, dialogHref, dialogWidth, dialogHeight) {
            var dialogProperties = {
                title: dialogTitle,
                 dialogWidth,
                height: dialogHeight,
                modal: true
            }
            var dialogStr = '<div style="position:relative">';
            dialogStr = dialogStr + '<iframe src="' + dialogHref + '" style=" 100%; height: 100%; overflow-x: hidden; overflow-y: auto" id="ifmDialogSecond" frameborder="0" marginheight="0" marginwidth="0"></iframe>';
            dialogStr = dialogStr + '</div>';
            actDialog = $(dialogStr).dialog(dialogProperties);
        }

        function closeSecondDialog() {
            $(actDialog).dialog('close');
            var iframe = document.getElementById('ifmDialogSecond');
    
            //把iframe指向空白页面，这样可以释放大部分内存。 
            iframe.src = 'about:blank'; 
    
            try{ 
                iframe.contentWindow.document.write(''); 
                iframe.contentWindow.document.clear(); 
            }catch(e){}     
            //把iframe从页面移除 
            iframe.parentNode.removeChild(iframe); 
        }

  A界面代码

<!--前端JS--> 
function openAddDialog() {
            var ID = $("#dt_ID").val();
            var title = 'B标签名字';
            var href = '../Module_Sbjn/Sbjn_Qyb_ChildEdit.aspx?sbjnid=' + ID; //这里href必须是相对于底层界面的。
            var width = 850;
            var height = 560;
            window.parent.openOneDialog(title, href, width, height);
            return false;//阻止按钮后台刷新
        }
        function openEditDialog(ID) {
            var title = 'B标签名字';
            var href = '../Module_Sbjn/Sbjn_Qyb_ChildEdit.aspx?childid=' + ID; //这里href必须是相对于底层界面的。
           var width = 850;
            var height = 560;
            window.parent.openOneDialog(title, href, width, height);
            return false;//阻止按钮后台刷新
        }

  B界面代码 

//前端js
function openSelectDialog() {
            var applyYear = $("#ddl_year").val();
            if (applyYear==null ||applyYear=="")
            {
                alert("请先选择申报年度！");
                return false;
            }
            var title = 'C界面名称';
            var href = '../Module_Sbjn/Sbjn_Qyb_ChildSelect.aspx?applyYear=' + applyYear; //这里href必须是相对于底层界面的。
            var width = 700;
            var height = 300;
            window.parent.openSecondDialog(title, href, width, height);
            return false;//阻止按钮后台刷新
        }  

//后端代码
string ReturnString = string.Empty;
            ReturnString = "<script type='text/javascript'>";
            ReturnString = ReturnString + "var thisWindowOpenedMe = parent.document.getElementById('ifmContentBody').contentWindow;";
//该窗体即为A界面
            ReturnString = ReturnString + "thisWindowOpenedMe.ReloadInfo();";
            ReturnString = ReturnString + "window.parent.closeOneDialog();</script>";
            Response.Write(ReturnString);

 C界面代码

//后端JS  
string ReturnString = string.Empty;
            ReturnString = "<script type='text/javascript'>";
            ReturnString = ReturnString + "var thisWindowDialogdMe =parent.document.getElementById('ifmDialog').contentWindow;";//获取B标签页
            ReturnString = ReturnString + "thisWindowDialogdMe.document.getElementById('dbt_QyID').value ='" + id + "';";
            ReturnString = ReturnString + "thisWindowDialogdMe.document.getElementById('td_Qymc').value='" + Qymc + "';";
            ReturnString = ReturnString + "thisWindowDialogdMe.document.getElementById('tb_Tyshxydm').value ='" + unionCreditCode + "';";
            ReturnString = ReturnString + "thisWindowDialogdMe.document.getElementById('dbt_PersonQuantity').value ='" + PersonQuantity + "';";
            ReturnString = ReturnString + "window.parent.closeSecondDialog();</script>";
            Response.Write(ReturnString);