用鼠標中鍵按下winforms選項卡上的關閉選項卡

Question

有沒有簡單的方法（5行代碼）來做到這一點？

Answer 1

刪除中間鼠標按鈕被點擊的標籤的最短代碼是通過使用LINQ。

確保事件連線了

this.tabControl1.MouseClick += tabControl1_MouseClick; 

而對於處理程序本身

private void tabControl1_MouseClick(object sender, MouseEventArgs e) 
{ 
    var tabControl = sender as TabControl; 
    var tabs = tabControl.TabPages; 

    if (e.Button == MouseButtons.Middle) 
    { 
    tabs.Remove(tabs.Cast<TabPage>() 
      .Where((t, i) => tabControl.GetTabRect(i).Contains(e.Location)) 
      .First()); 
    } 
} 

如果你是追求線條的量最少，這是一條線

tabControl1.MouseClick += delegate(object sender, MouseEventArgs e) { var tabControl = sender as TabControl; var tabs = tabControl.TabPages; if (e.Button == MouseButtons.Middle) { tabs.Remove(tabs.Cast<TabPage>().Where((t, i) => tabControl.GetTabRect(i).Contains(e.Location)).First()); } }; 

Answer 2

你可以這樣做：

private void tabControl1_MouseClick(object sender, MouseEventArgs e) 
{ 
    if (e.Button == MouseButtons.Middle) 
    { 
      // choose tabpage to delete like below 
      tabControl1.TabPages.Remove(tabControl1.TabPages[0]); 
    } 
} 

基本上你只是迎頭趕上標籤控制鼠標點擊僅刪除頁面，如果被點擊中間的按鈕。

Answer 3

解決方案，而LINQ不那麼緊湊和美觀，但也是實際的：

private void TabControlMainMouseDown(object sender, MouseEventArgs e) 
{ 
    var tabControl = sender as TabControl; 
    TabPage tabPageCurrent = null; 
    if (e.Button == MouseButtons.Middle) 
    { 
     for (var i = 0; i < tabControl.TabCount; i++) 
     { 
      if (!tabControl.GetTabRect(i).Contains(e.Location)) 
       continue; 
      tabPageCurrent = tabControl.TabPages[i]; 
      break; 
     } 
     if (tabPageCurrent != null) 
      tabControl.TabPages.Remove(tabPageCurrent); 
    } 
} 

Answer 4

D沒有足夠的分數來發表對所提供的解決方案的評論，但他們都遭受同樣的缺陷：已刪除選項卡中的控件未被釋放。

Regards