Ext JS 學習(8) Ext.FormPanel 組件的使用第五式(FormPanel的綜合使用,提交頁面到後臺)

 

今天我們做個綜合點的例子,向服務器提交下!
其實這篇文章很簡單,沒有什麼發光點,暫放首頁半天,忘各位理解!
先來個簡單的例子,以說明formpanel如何把數據傳給其他頁面。
效果圖:

現在我們要實現的效果是:點擊確定,把值傳到另一頁面!,如下:

原頁面js代碼爲:
Ext.onReady(function(){
  Ext.QuickTips.init();
  var form=new Ext.FormPanel({
     frame:true,
     width:300,
     //monitorValid:true,//綁定驗證
     layout:"form",
     labelWidth:70,
     title:"添加個人信息",
     labelAlign:"left",
     renderTo:Ext.getBody(),
     submit: function(){
                    this.getEl().dom.action = 'GetForm.aspx',
                    this.getEl().dom.method='POST',
                    this.getEl().dom.submit();
              },
     items:[{
               xtype:"textfield",
               fieldLabel:"用戶名",
               //id:"UserName",
               allowBlank:false,
               blankText:"不能爲空,請正確填寫",
               name:"UserName",
               anchor:"90%"
           },{
               xtype:"textfield",
               fieldLabel:"暱稱",
               //id:"SmallName",
               name:"SmallName",
               anchor:"90%"
           },{
               xtype:"datefield",
               fieldLabel:"註冊日期",
               //id:"RegDate",
               name:"RegDate",
               anchor:"90%"
           }],
       });
接受頁面GetForm.aspx的cs代碼爲:
protected void Page_Load(object sender, EventArgs e)
    {
        string UserName = Request.Form["UserName"];
        string SmallName = Request.Form["SmallName"];
        string RegDate = Request.Form["RegDate"];

        Response.Write(UserName + "<br/>" + SmallName + "<br/>" + RegDate);
    }
因爲很簡單,我做個簡要說明:
//幾點說明
1.首先定義submit參數的執行函數,即:
   submit: function(){
                    this.getEl().dom.action = 'GetForm.aspx',//轉向頁面地址
                    this.getEl().dom.method='POST',//方式
                    this.getEl().dom.submit();//提交!
              },
2.爲按鈕添加觸發相應的提交(取消)事件(這樣就不是默認的ajax提交):
   buttons:[{text:"確定",handler:login,formBind:true},{text:"取消",handler:reset}]
  });
  function login(){
         form.form.submit();//提交
   }
   function reset(){
         form.form.reset();//取消
   }
3.如果你想綁定驗證,在form表單添加參數monitorValid:true,然後在按鈕配置參數中添加formBind:true,如
       buttons:[{text:"確定",handler:login,formBind:true},{text:"取消",handler:reset}]
則只有所有的填寫字段都滿足條件時,"確定"方可提交!如下圖,

好了,一個簡單的formpanel的提交的原理弄清楚啦!
有關form提交數據的方法有多種,大家可以參考http://www.17ext.com/showtopic-55.aspx(三種ext提交數據的方式),

以後有機會我們再討論!
下面我們來做個複雜點(只是樣子)的form,示例一下(還是上面的原理)!
效果圖:

傳到GetForm.aspx頁面後顯示:
不過在傳過來的頁面要記得ValidateRequest="false",安全編碼我就暫且不討論了!

不過在傳過來的頁面要記得ValidateRequest="false",安全編碼我就暫且不討論了!
js代碼:
Ext.onReady(function(){
  Ext.QuickTips.init();
  var form=new Ext.FormPanel({
     frame:true,
     width:500,
     monitorValid:true,//把有formBind:true的按鈕和驗證綁定
     layout:"form",
     labelWidth:55,
     title:"添加個人信息",
     labelAlign:"right",
     renderTo:Ext.getBody(),
     submit: function(){
                    this.getEl().dom.action = 'GetForm.aspx',
                    this.getEl().dom.method='POST',
                    this.getEl().dom.submit();
              },
     items:[{
               xtype:"panel",
               layout:"column",
               fieldLabel:"用戶名",
               isFormField:true,
               items:[{
                         columnWidth:.5,
                         xtype:"textfield",
                         allowBlank:false,
                         blankText:"不能爲空,請填寫",
                         name:"UserName",
                         anchor:"90%"
               },{
                         columnWidth:.20,
                         layout:"form",
                         labelWidth:40,
                         labelAlign:"right",
                         items:[{
                                   xtype:"radio",
                                   fieldLabel:"性別",
                                   boxLabel:"男",
                                   name:"Sex",
                                   checked:true,
                                   inputValue:"man",//這裏如果用value,值是on,所以用inputValue(出現這種情況的是radio,checkbox)
                                   anchor:"95%"
                         }]
               },{
                         columnWidth:.30,
                         layout:"form",
                         labelWidth:1,//讓標籤寬度爲很小的值(奇怪的是爲0時反而不行)
                         items:[{
                                   xtype:"radio",
                                   boxLabel:"女",
                                   labelSeparator:"",//去除分隔符“:”
                                   name:"Sex",
                                   inputValue:"woman",
                                   anchor:"95%"
                         }]
               }]
     },{//上面是第一行
               xtype:"panel",
               layout:"column",
               fieldLabel:"出生日期",
               isFormField:true,
               items:[{
                         columnWidth:.5,
                         xtype:"datefield",
                         name:"BirthDate",
                         anchor:"90%"
               },{
                         columnWidth:.5,
                         layout:"form",
                         labelWidth:40,//注意,這個參數在這裏可以調整簡單fieldLabel的佈局位置
                         items:[{
                                   xtype:"combo",
                                   name:"Degree",
                                   fieldLabel:"學位",
                                   store:["小學","初中","高中","專科","本科","碩士","博士"],
                                   emptyText:"請選擇適合你的學歷",
                                   anchor:"90%"
                         }]
               }]
     },{//上面是第二行
               xtype:"panel",
               layout:"column",
               isFormField:true,
               fieldLabel:"使用框架",
               items:[{
                         columnWidth:.2,
                         xtype:"checkbox",
                         boxLabel:"Spring.net",
                         name:"SpringNet",
                         inputValue:"spring"//這裏如果用value,值是on,所以用inputValue
               },{
                         columnWidth:.2,
                         layout:"form",
                         labelWidth:1,
                         items:[{
                                   xtype:"checkbox",
                                   boxLabel:"Nhibernate",
                                   labelSeparator:"",
                                   name:"NHibernate",
                                   inputValue:"nhibernate",
                                   anchor:"95%"
                         }]
               },{
                         columnWidth:.6,
                         layout:"form",
                         labelWidth:1,
                         items:[{
                                   xtype:"checkbox",
                                   boxLabel:"Linq",
                                   labelSeparator:"",
                                   name:"Linq",
                                   inputValue:"linq",
                                   anchor:"95%"
                         }]
               }]
              
     },{//上面是第三行
               xtype:"textfield",
               fieldLabel:"Email",
               name:"Email",
               vtype:"email",//email驗證,如果想自定義驗證的話,請參見前面的文章
               vtypeText:"email格式錯誤!",
               anchor:"56%"//控制文本框的長度
              
     },{//上面是第四行
               xtype:"textarea",
               fieldLabel:"個性簽名",
               name:"OneWord",
               height:50,
               anchor:"95%"
     },{//上面是第五行
               xtype:"htmleditor",
               fieldLabel:"想說的話",
               name:"WantToSay",
               anchor:"95%",
               enableAlignments:false,//去除左右對齊工具欄
               enableLists:false//去除列表工具欄
     }],
      buttons:[{text:"確定",handler:login,formBind:true},{text:"取消",handler:reset}]
  });
  function login(){
         form.form.submit();
   }
   function reset(){
         form.form.reset();
   }
});

接受cs頁面的代碼:
protected void Page_Load(object sender, EventArgs e)
    {
        string UserName = Request.Form["UserName"];
        string Sex = Request.Form["Sex"];
        string BirthDate = Request.Form["BirthDate"];
        string Degree = Request.Form["Degree"];
        string SpringNet = Request.Form["SpringNet"];
        string NHibernate = Request.Form["NHibernate"];
        string Linq = Request.Form["Linq"];
        string Email=Request.Form["Email"];
        string OneWord = Request.Form["OneWord"];
        string WantToSay = Request.Form["WantToSay"];

        Response.Write("用戶名:" + UserName + "<br/>");
        Response.Write("性別是:" + Sex + "<br/>");
        Response.Write("出生日期:" + BirthDate + "<br/>");
        Response.Write("學位:" + Degree + "<br/>");
        Response.Write("使用框架有:");
        if (SpringNet != null)
        {
            Response.Write(SpringNet + ",");
        }
        if (NHibernate != null)
        {
            Response.Write(NHibernate + ",");
        }
        if (Linq != null)
        {
            Response.Write(Linq + ",");
        }
        Response.Write("<br/>");
        Response.Write("郵件地址:" + Email);
        Response.Write("個性簽名:" + OneWord + "<br/>");
        Response.Write("想說的話:" + WantToSay);
    }

經過一個簡單的傳值原理傳值後,一個表單就可以把數據存儲到數據庫中去了!
//注意幾點
1.綁定驗證的兩個參數 monitorValid:true,formBind:true
2.精確佈局要注意的參數爲和width有關的:width:500,labelWidth:55,columnWidth:.5,anchor:"90%",isFormField:true等
3.radio和checkbox通過inputValue獲取值,頁面傳值
4.多列多組件佈局爲form和column和form佈局組合使用,請參考源碼分析!

至此,formpanel的簡單使用就告一段落,但是formpanel的應用還遠遠沒有講到,有機會我們再在高級篇裏討論!
謝謝各位朋友的支持!
在下篇中我們接着訴說另外一個組件tabpanel,希望各位支持,拍磚,給我動力!

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