C# tabpage active『Check if a specific tab page is selected (active)』

資料來源: 

01.https://stackoverflow.com/questions/8653036/check-if-a-specific-tab-page-is-selected-active/39185625

02.自己開發的專案

Code
方案01.

private void tab1_SelectedIndexChanged(object sender, EventArgs e)
{
     if (tab1.SelectedTab == tab1.TabPages["tabname"])//your specific tabname
     {
         // your stuff
     }
}

方案02.

this.m_tabMain.SelectedIndexChanged += new System.EventHandler(this.m_tabMain_SelectedIndexChanged);

private void m_tabMain_SelectedIndexChanged(object sender, EventArgs e)//工作區改變時也同時改變左側選單
{
 m_TPOld = m_tabMain.SelectedTab;//--2017/02/22 製作返回按鈕功能
 TabPage_Push();//m_StackTPOld.Push(m_TPOld);//--2017/02/22 製作返回按鈕功能

 //---
 //Outlook子按鈕點擊後，保持顏色識別
 m_intOutlookClickMainIndex = -1;
 m_intOutlookClickSubIndex = -1;
 //---Outlook子按鈕點擊後，保持顏色識別

 if(m_blnBookmarkHide==true)
 {
 return;
 }

 //---
 //裝置管理子頁選擇連動Outlook選單切換
 if (m_tabMain.SelectedTab == m_tabV09device)
 {
 m_intOutlookClickMainIndex = m_intMenuPosition2Var[0];
 m_intOutlookClickSubIndex = 0;
 m_OutlookBar1.SelectedBand = m_intMenuPosition2Var[0];
 }
 if (m_tabMain.SelectedTab == m_tabSub0000)
 {
 m_intOutlookClickMainIndex = m_intMenuPosition2Var[0];
 m_intOutlookClickSubIndex = 1;
 m_OutlookBar1.SelectedBand = m_intMenuPosition2Var[0];
 }
 if ((m_tabMain.SelectedTab == m_tabSub000001) || (m_tabMain.SelectedTab == m_tabSub000002))
 {
 m_intOutlookClickMainIndex = m_intMenuPosition2Var[0];
 m_intOutlookClickSubIndex = 1;
 m_OutlookBar1.SelectedBand = m_intMenuPosition2Var[0];
 }
 if (m_tabMain.SelectedTab == m_tabSub0001)
 {
 m_intOutlookClickMainIndex = m_intMenuPosition2Var[0];
 m_intOutlookClickSubIndex = 2;
 m_OutlookBar1.SelectedBand = m_intMenuPosition2Var[0];
 }
 if (m_tabMain.SelectedTab == m_tabSub000100)
 {
 m_intOutlookClickMainIndex = m_intMenuPosition2Var[0];
 m_intOutlookClickSubIndex = 2;
 m_OutlookBar1.SelectedBand = m_intMenuPosition2Var[0];
 }
 if (m_tabMain.SelectedTab == m_tabSub0002)
 {
 m_intOutlookClickMainIndex = m_intMenuPosition2Var[0];
 m_intOutlookClickSubIndex = 3;
 m_OutlookBar1.SelectedBand = m_intMenuPosition2Var[0];
 }
 if (m_tabMain.SelectedTab == m_tabSub000200)
 {
 m_intOutlookClickMainIndex = m_intMenuPosition2Var[0];
 m_intOutlookClickSubIndex = 3;
 m_OutlookBar1.SelectedBand = m_intMenuPosition2Var[0];
 }
 if (m_tabMain.SelectedTab == m_tabSub0003)
 {
 m_intOutlookClickMainIndex = m_intMenuPosition2Var[0];
 m_intOutlookClickSubIndex = 4;
 m_OutlookBar1.SelectedBand = m_intMenuPosition2Var[0];
 }
 if (m_tabMain.SelectedTab == m_tabSub000301)
 {
 m_intOutlookClickMainIndex = m_intMenuPosition2Var[0];
 m_intOutlookClickSubIndex = 4;
 m_OutlookBar1.SelectedBand = m_intMenuPosition2Var[0];
 }

 //---
 //新增m_tabV09device頁籤元件變數並建立對應初始化 - 把m_tabSub0004的顯示程式碼替換成m_tabV09device
 /*
 if (m_tabMain.SelectedTab == m_tabSub0004)
 {
 m_intOutlookClickMainIndex = 0;
 m_intOutlookClickSubIndex = 4;
 m_OutlookBar1.SelectedBand = 0;
 }
 if (m_tabMain.SelectedTab == m_tabSub000400)
 {
 m_intOutlookClickMainIndex = 0;
 m_intOutlookClickSubIndex = 4;
 m_OutlookBar1.SelectedBand = 0;
 }
 */
 //---新增m_tabV09device頁籤元件變數並建立對應初始化 - 把m_tabSub0004的顯示程式碼替換成m_tabV09device

 //---裝置管理子頁選擇連動Outlook選單切換 

 //---
 //人員卡片管理子頁選擇連動Outlook選單切換 
 if (m_tabMain.SelectedTab == m_tabSub0100)
 {
 m_intOutlookClickMainIndex = m_intMenuPosition2Var[1];
 m_intOutlookClickSubIndex = 1;
 m_OutlookBar1.SelectedBand = m_intMenuPosition2Var[1];
 }
 if (m_tabMain.SelectedTab == m_tabSub010000)
 {
 m_intOutlookClickMainIndex = m_intMenuPosition2Var[1];
 m_intOutlookClickSubIndex = 1;
 m_OutlookBar1.SelectedBand = m_intMenuPosition2Var[1];
 }
 if (m_tabMain.SelectedTab == m_tabSub0101)
 {
 m_intOutlookClickMainIndex = m_intMenuPosition2Var[1];
 m_intOutlookClickSubIndex = 3;
 m_OutlookBar1.SelectedBand = m_intMenuPosition2Var[1];
 }
 if (m_tabMain.SelectedTab == m_tabSub010100)
 {
 m_intOutlookClickMainIndex = m_intMenuPosition2Var[1];
 m_intOutlookClickSubIndex = 3;
 m_OutlookBar1.SelectedBand = m_intMenuPosition2Var[1];
 }
 if (m_tabMain.SelectedTab == m_tabSub0102)
 {
 m_intOutlookClickMainIndex = m_intMenuPosition2Var[1];
 m_intOutlookClickSubIndex = 2;
 m_OutlookBar1.SelectedBand = m_intMenuPosition2Var[1];
 }
 if (m_tabMain.SelectedTab == m_tabSub010200)
 {
 m_intOutlookClickMainIndex = m_intMenuPosition2Var[1];
 m_intOutlookClickSubIndex = 2;
 m_OutlookBar1.SelectedBand = m_intMenuPosition2Var[1];
 }
 if (m_tabMain.SelectedTab == m_tabSub0103)
 {
 m_intOutlookClickMainIndex = m_intMenuPosition2Var[1];
 m_intOutlookClickSubIndex = 0;
 m_OutlookBar1.SelectedBand = m_intMenuPosition2Var[1];
 }
 if (m_tabMain.SelectedTab == m_tabSub0104)
 {
 m_intOutlookClickMainIndex = m_intMenuPosition2Var[1];
 m_intOutlookClickSubIndex = 4;
 m_OutlookBar1.SelectedBand = m_intMenuPosition2Var[1];
 }
 if (m_tabMain.SelectedTab == m_tabSub010400)
 {
 m_intOutlookClickMainIndex = m_intMenuPosition2Var[1];
 m_intOutlookClickSubIndex = 4;
 m_OutlookBar1.SelectedBand = m_intMenuPosition2Var[1];
 }
 //---人員卡片管理子頁選擇連動Outlook選單切換

 //---
 //門區通行授權子頁選擇連動Outlook選單切換
 if (m_tabMain.SelectedTab == m_tabSub0200)
 {
 m_intOutlookClickMainIndex = m_intMenuPosition2Var[2];
 m_intOutlookClickSubIndex = 0;
 m_OutlookBar1.SelectedBand = m_intMenuPosition2Var[2];
 }
 if (m_tabMain.SelectedTab == m_tabSub020000)
 {
 m_intOutlookClickMainIndex = m_intMenuPosition2Var[2];
 m_intOutlookClickSubIndex = 0;
 m_OutlookBar1.SelectedBand = m_intMenuPosition2Var[2];
 }
 if (m_tabMain.SelectedTab == m_tabSub0201)
 {
 m_intOutlookClickMainIndex = m_intMenuPosition2Var[2];
 m_intOutlookClickSubIndex = 4;
 m_OutlookBar1.SelectedBand = m_intMenuPosition2Var[2];
 }
 if (m_tabMain.SelectedTab == m_tabSub0202)
 {
 m_intOutlookClickMainIndex = m_intMenuPosition2Var[2];
 m_intOutlookClickSubIndex = 3;
 m_OutlookBar1.SelectedBand = m_intMenuPosition2Var[2];
 }
 if (m_tabMain.SelectedTab == m_tabSub0203)
 {
 m_intOutlookClickMainIndex = m_intMenuPosition2Var[2];
 m_intOutlookClickSubIndex = 1;
 m_OutlookBar1.SelectedBand = m_intMenuPosition2Var[2];
 }

 if (m_tabMain.SelectedTab == m_tabSub0204)
 {
 m_intOutlookClickMainIndex = m_intMenuPosition2Var[2];
 m_intOutlookClickSubIndex = 1;
 m_OutlookBar1.SelectedBand = m_intMenuPosition2Var[2];
 }
 if (m_tabMain.SelectedTab == m_tabSub0205)
 {
 m_intOutlookClickMainIndex = m_intMenuPosition2Var[2];
 m_intOutlookClickSubIndex = 2;
 m_OutlookBar1.SelectedBand = m_intMenuPosition2Var[2];
 }

 if (m_tabMain.SelectedTab == m_tabSub020300)
 {
 m_intOutlookClickMainIndex = m_intMenuPosition2Var[2];
 m_intOutlookClickSubIndex = 1;
 m_OutlookBar1.SelectedBand = m_intMenuPosition2Var[2];
 }
 //---門區通行授權子頁選擇連動Outlook選單切換  

 //---
 //報表作業子頁選擇連動Outlook選單切換 
 if (m_tabMain.SelectedTab == m_tabSub0300)
 {
 m_intOutlookClickMainIndex = m_intMenuPosition2Var[3];
 m_intOutlookClickSubIndex = 0;
 m_OutlookBar1.SelectedBand = m_intMenuPosition2Var[3];
 }
 if (m_tabMain.SelectedTab == m_tabSub0301)
 {
 m_intOutlookClickMainIndex = m_intMenuPosition2Var[3];
 m_intOutlookClickSubIndex = 0;
 m_OutlookBar1.SelectedBand = m_intMenuPosition2Var[3];
 }
 if (m_tabMain.SelectedTab == m_tabSub0302)//新增三個OUTLOOK報表下子按鈕的子頁選擇連動Outlook選單切換
 {
 m_intOutlookClickMainIndex = m_intMenuPosition2Var[3];
 m_intOutlookClickSubIndex = 1;
 m_OutlookBar1.SelectedBand = m_intMenuPosition2Var[3];
 }
 if (m_tabMain.SelectedTab == m_tabSub0303)//新增三個OUTLOOK報表下子按鈕的子頁選擇連動Outlook選單切換
 {
 m_intOutlookClickMainIndex = m_intMenuPosition2Var[3];
 m_intOutlookClickSubIndex = 2;
 m_OutlookBar1.SelectedBand = m_intMenuPosition2Var[3];
 }
 if (m_tabMain.SelectedTab == m_tabSub0304)//新增三個OUTLOOK報表下子按鈕的子頁選擇連動Outlook選單切換
 {
 m_intOutlookClickMainIndex = m_intMenuPosition2Var[3];
 m_intOutlookClickSubIndex = 3;
 m_OutlookBar1.SelectedBand = m_intMenuPosition2Var[3];
 }
 //---報表作業子頁選擇連動Outlook選單切換

 if (m_tabMain.SelectedTab == m_tabSub0305)//新增三個OUTLOOK報表下子按鈕的子頁選擇連動Outlook選單切換
 {
 m_intOutlookClickMainIndex = m_intMenuPosition2Var[3];
 m_intOutlookClickSubIndex = 4;
 m_OutlookBar1.SelectedBand = m_intMenuPosition2Var[3];
 }

 //---
 //指紋管理子頁選擇連動Outlook選單切換 
 if (m_tabMain.SelectedTab == m_tabSub0400)
 {
 m_intOutlookClickMainIndex = m_intMenuPosition2Var[4];
 m_intOutlookClickSubIndex = 0;
 m_OutlookBar1.SelectedBand = m_intMenuPosition2Var[4];
 }
 //---指紋管理子頁選擇連動Outlook選單切換

 //---
 //修正系統頁子頁選擇連動Outlook選單切換修正BUG
 if (m_tabMain.SelectedTab == m_tabSys)
 {
 m_intOutlookClickMainIndex = m_intMenuPosition2Var[5];
 m_intOutlookClickSubIndex = 0;
 m_OutlookBar1.SelectedBand = m_intMenuPosition2Var[5];
 }
 //---修正系統頁子頁選擇連動Outlook選單切換修正BUG

 //---
 //製作權限管理畫面 ~ 製作獨立對應頁籤元件+頁籤預設初始化
 if (m_tabMain.SelectedTab == m_tabSub0502)
 {
 m_intOutlookClickMainIndex = m_intMenuPosition2Var[5];
 m_intOutlookClickSubIndex = 2;
 m_OutlookBar1.SelectedBand = m_intMenuPosition2Var[5];
 }
 if (m_tabMain.SelectedTab == m_tabSub0501)
 {
 m_intOutlookClickMainIndex = m_intMenuPosition2Var[5];
 m_intOutlookClickSubIndex = 1;
 m_OutlookBar1.SelectedBand = m_intMenuPosition2Var[5];
 }
 //---製作權限管理畫面 ~ 製作獨立對應頁籤元件+頁籤預設初始化

 //---
 //建立即時狀態實體UI頁籤-子頁選擇連動Outlook選單切換
 if (m_tabMain.SelectedTab == m_tabSub0600)
 {
 m_intOutlookClickMainIndex = m_intMenuPosition2Var[6];
 m_intOutlookClickSubIndex = 0;
 m_OutlookBar1.SelectedBand = m_intMenuPosition2Var[6];
 }
 //---建立即時狀態實體UI頁籤-子頁選擇連動Outlook選單切換

 //---
 //建立RFID實體UI頁籤-子頁選擇連動Outlook選單切換
 if (m_tabMain.SelectedTab == m_tabSub0602)
 {
 m_intOutlookClickMainIndex = m_intMenuPosition2Var[6];
 m_intOutlookClickSubIndex = 1;
 m_OutlookBar1.SelectedBand = m_intMenuPosition2Var[6];
 }
 //---建立RFID實體UI頁籤-子頁選擇連動Outlook選單切換

 //---
 //建立遠端開門實體UI頁籤-子頁選擇連動Outlook選單切換
 if (m_tabMain.SelectedTab == m_tabSub0601)
 {
 m_intOutlookClickMainIndex = m_intMenuPosition2Var[6];
 m_intOutlookClickSubIndex = 2;
 m_OutlookBar1.SelectedBand = m_intMenuPosition2Var[6];
 }
 //---建立遠端開門實體UI頁籤-子頁選擇連動Outlook選單切換

 //---
 //建立門區列表UI頁籤-子頁選擇連動Outlook選單切換
 if (m_tabMain.SelectedTab == m_tabSub0603)
 {
 m_intOutlookClickMainIndex = m_intMenuPosition2Var[6];
 m_intOutlookClickSubIndex = 3;
 m_OutlookBar1.SelectedBand = m_intMenuPosition2Var[6];
 }
 //---建立門區列表UI頁籤-子頁選擇連動Outlook選單切換
}