c# winform快捷鍵實現
阿新 • • 發佈：2019-03-14
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我們在軟件中經常用到快捷鍵，這裏整理備份一下。
首先我們要定義可以作為快捷鍵的按鍵，以下是整理的 一些，自己可以根據情況來修改
public static Dictionary<int, string> HotKeys = new Dictionary<int, string>() { {48,"0"}, {49,"1"}, {50,"2"}, {51,"3"}, {52,"4"View Code}, {53,"5"}, {54,"6"}, {55,"7"}, {56,"8"}, {57,"9"}, {65,"A"}, {66,"B"}, {67,"C"}, {68,"D"}, {69,"E"}, {70,"F"}, {71,"G"}, {72,"H"}, {73,"I"}, {74,"J"}, {75,"K"}, {76,"L"}, {77,"M"}, {78,"N"}, {79,"O"}, {80,"P"}, {81,"Q"}, {82,"R"}, {83,"S"}, {84,"T"}, {85,"U"}, {86,"V"}, {87,"W"}, {88,"X"}, {89,"Y"}, {90,"Z"}, {112,"F1"}, {113,"F2"}, {114,"F3"}, {115,"F4"}, {116,"F5"}, {117,"F6"}, {118,"F7"}, {119,"F8"}, {120,"F9"}, {121,"F10"}, {122,"F11"}, {123,"F12"}, {33,"PageUp"}, {34,"PageDown"}, {35,"End"}, {36,"Home"}, {37,"←"}, {38,"↑"}, {39,"→"}, {40,"↓"}, {45,"Insert"}, {46,"Delete"}, {186,";"}, {187,"="}, {188,","}, {189,"-"}, {190,"."}, {191,"/"}, {192,"`"}, {219,"["}, {220,"\\"}, {221,"]"} };
然後弄個數據表存一下定義功能對應的快捷鍵，表結構如下
CREATE TABLE [dbo].[HotKey]( [ID] [int] IDENTITY(1,1) NOT NULL, [FrmName] [nvarchar](50) NULL, [Sort] [int] NULL, [ActionName] [nvarchar](50) NULL, [ActionKey] [nvarchar](50) NULL, [KeyValue] [nvarchar](50) NULL ) ON [PRIMARY] GO EXEC sys.sp_addextendedproperty @name=N‘MS_Description‘, @value=N‘界面‘ , @level0type=N‘SCHEMA‘,@level0name=N‘dbo‘, @level1type=N‘TABLE‘,@level1name=N‘HotKey‘, @level2type=N‘COLUMN‘,@level2name=N‘FrmName‘ GO EXEC sys.sp_addextendedproperty @name=N‘MS_Description‘, @value=N‘順序‘ , @level0type=N‘SCHEMA‘,@level0name=N‘dbo‘, @level1type=N‘TABLE‘,@level1name=N‘HotKey‘, @level2type=N‘COLUMN‘,@level2name=N‘Sort‘ GO EXEC sys.sp_addextendedproperty @name=N‘MS_Description‘, @value=N‘功能名稱‘ , @level0type=N‘SCHEMA‘,@level0name=N‘dbo‘, @level1type=N‘TABLE‘,@level1name=N‘HotKey‘, @level2type=N‘COLUMN‘,@level2name=N‘ActionName‘ GO EXEC sys.sp_addextendedproperty @name=N‘MS_Description‘, @value=N‘功能編碼‘ , @level0type=N‘SCHEMA‘,@level0name=N‘dbo‘, @level1type=N‘TABLE‘,@level1name=N‘HotKey‘, @level2type=N‘COLUMN‘,@level2name=N‘ActionKey‘ GO EXEC sys.sp_addextendedproperty @name=N‘MS_Description‘, @value=N‘熱鍵‘ , @level0type=N‘SCHEMA‘,@level0name=N‘dbo‘, @level1type=N‘TABLE‘,@level1name=N‘HotKey‘, @level2type=N‘COLUMN‘,@level2name=N‘KeyValue‘ GOView Code
系統啟動的時候緩存一下設置的快捷鍵
public static List<HotKey> HotKeySetting { get; set; }
基類窗體裏面寫窗體的
寫KeyUP 和KeyDown事件
bool m_blnCtrl = false; bool m_blnAlt = false; bool m_blnShift = false; [Description("定義的熱鍵列表"), Category("自定義")] public Dictionary<int, string> HotKeys { get; set; } //如果事件返回true則表示已經找到了快捷鍵事件，則不再向下傳遞 public delegate bool HotKeyEventHandler(string strHotKey); /// <summary> /// 熱鍵事件 /// </summary> [Description("熱鍵事件"), Category("自定義")] public event HotKeyEventHandler HotKeyDown; protected void FrmBase_KeyUp(object sender, KeyEventArgs e) { if (HotKeyDown != null && HotKeys != null) { if (e.KeyCode == Keys.Control || e.KeyCode == Keys.ControlKey) m_blnCtrl = false; if (e.KeyCode == Keys.Alt || e.KeyCode == Keys.Menu) m_blnAlt = false; if (e.KeyCode == Keys.Shift || e.KeyCode == Keys.ShiftKey) m_blnShift = false; } } protected void FrmBase_KeyDown(object sender, KeyEventArgs e) { if (HotKeyDown != null && HotKeys != null) { if (e.KeyCode == Keys.Control || e.KeyCode == Keys.ControlKey) m_blnCtrl = true; if (e.KeyCode == Keys.Alt || e.KeyCode == Keys.Menu) m_blnAlt = true; if (e.KeyCode == Keys.Shift || e.KeyCode == Keys.ShiftKey) m_blnShift = true; if (HotKeys.ContainsKey(e.KeyValue)) { string strKey = string.Empty; if (m_blnCtrl) { strKey += "Ctrl+"; } if (m_blnAlt) { strKey += "Alt+"; } if (m_blnShift) { strKey += "Shift+"; } strKey += HotKeys[e.KeyValue]; if (HotKeyDown(strKey)) { e.Handled = true; e.SuppressKeyPress = true; } } } }View Code
你會註意到keyup和kedown事件的修飾符是protected，為什麽要用protected呢？是因為窗體的一些輸入控件的按鍵事件是不會傳遞到窗體的，比如textbox這些，所有需要手動指定一下
子窗體中註冊事件就可以了，如果你沒有用基類窗體，那麽直接寫在一起就可以了
this.HotKeys = HotKeys; this.HotKeyDown += FrmMain_HotKeyDown; //將輸入框的2個事件指向窗體的2個事件 this.txtSearch.KeyDown += this.FrmBase_KeyDown; this.txtSearch.KeyUp += this.FrmBase_KeyUp; /// <summary> /// 熱鍵按下事件 /// </summary> /// <param name="strHotKey">熱鍵值</param> /// <returns>當返回true則表示不再向下傳遞按鍵事件，通常當匹配到熱鍵操作後返回true</returns> bool FrmMain_HotKeyDown(string strHotKey) { Console.WriteLine(strHotKey); string strHotAction = GetHotKeyAction("FrmMain", strHotKey); if (string.IsNullOrEmpty(strHotAction)) return false; else { //這裏根據返回的功能名稱做操作就可以了 return true; } } public static string GetHotKeyAction(string strFrom, string strHotKey) { var entity = HotKeySetting.Find(p => p.FrmName.ToLower() == strFrom.ToLower() && p.KeyValue.ToStringExt().ToLower() == strHotKey.ToLower()); if (entity != null) return entity.ActionKey; else return string.Empty; }View Code
這樣就可以了
c# winform快捷鍵實現