picturebox控件在C#.NET（Visual Studio）中不工作_C#_Winforms_Visual Studio 2012_Controls_Picturebox

picturebox控件在C#.NET（Visual Studio）中不工作

c# winforms visual-studio-2012

picturebox控件在C#.NET（Visual Studio）中不工作,c#,winforms,visual-studio-2012,controls,picturebox,C#,Winforms,Visual Studio 2012,Controls,Picturebox,我正在做一个钢琴键盘，它也有一个音乐棒，这样当你按下键盘上的一个键时，音乐棒上会根据持续时间弹出一个音符（交叉、半短音符等）我有一个表单（称为Form1），其中有一个面板（Panel1），其中包含由按钮组成的键盘键。我还有一个音乐棒，它由一个装着音乐棒的图片盒和一个装着音高的测试文本框组成（基本上是在映射时播放的音符）问题是这个。我需要在教职员（pictureBox1）上显示音乐笔记，所以在Form1中，它作为主课堂，但每当我写作时 mn = new MusicNote (nPos,nPit

我正在做一个钢琴键盘，它也有一个音乐棒，这样当你按下键盘上的一个键时，音乐棒上会根据持续时间弹出一个音符（交叉、半短音符等）

我有一个表单（称为Form1），其中有一个面板（Panel1），其中包含由按钮组成的键盘键。我还有一个音乐棒，它由一个装着音乐棒的图片盒和一个装着音高的测试文本框组成（基本上是在映射时播放的音符）

问题是这个。我需要在教职员（pictureBox1）上显示音乐笔记，所以在Form1中，它作为主课堂，但每当我写作时

mn = new MusicNote (nPos,nPitch, duration,nShape);
pictureBox1.Controls.Add(this.mn);
pictureBox1.Controls[pictureBox1.Controls.Count - 1].BringToFront(); //Bring the notes OVER the Stave

它基本上不起作用，但当我将每个图片box1替换为这个或面板1（例如）
它在FORM1（灰色空间）或键盘上显示音符（请参阅下面的部分以查看键盘）。问题是，这样做实际上并没有添加到PictureBox，而是添加到Form1/面板
你知道如何解决这个问题并使音符成为PictureBox1的一部分吗？因为我还需要一些方法来处理这个pictureBox，比如当我点击其中一个音符时，它们实际上会播放那个持续时间的声音（在这个过程中，我仍然需要弄清楚如何将控件从Form1.cs传递到MusicNote.cs）
MusicNote.cs的部分编码与图像的“添加”有关，如下所示：

public class MusicNote : PictureBox { public int pitch; public int duration; public string noteShape; string nShape; bool isDragging = false; public string rootFolder = @"..\..\\bin\\Debug\\images\\"; ArrayList al = new ArrayList(); SoundPlayer sp = new SoundPlayer(); Timer t1 = new Timer(); public MusicNote(int x, int mPitch, int mDuration,string nShape) : base() { pitch = mPitch; duration = mDuration; noteShape = nShape; Location = new Point(x, 100); this.Size = new Size(35, 40); //--------- Get the Image of Note ---------- Bitmap bmp = new Bitmap(@rootFolder + nShape + ".bmp"); this.Image = bmp; this.BackColor = Color.Transparent; //-------Mouse Events------- this.MouseDown += new MouseEventHandler(StartDrag); this.MouseUp += new MouseEventHandler(StopDrag); this.MouseMove += new MouseEventHandler(NoteDrag); } etc ... ... ... }
Form1.cs编码（在所有方法从一种方法连接到另一种方法时过账）问题在于mouseup上的私有void（objectsender，MouseEventArgs e）这是最后一种方法

using System; using System.Threading; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Diagnostics; using System.Threading.Tasks; using System.Windows.Forms; using System.Media; using System.Collections; namespace Piano { public partial class Form1 : Form { public Form1() { InitializeComponent(); } // Objects of Music Note, Piano Keys, and all variables surronding the Keyboard and Notes WhiteKey wk; BlackKey bk; public int pitch; public int duration = 0; string nShape = ""; public const int xOff = 35; int count = 0; int nPos = 0; public string rootFolder = @"..\..\\bin\\Debug\\images\\"; MusicNote mn; MusicStaff ms; SoundPlayer sp = new SoundPlayer(); Stopwatch sw = new Stopwatch(); //--------------- White and Black Keys Creation both Buttons and Position------------------ public int[] wKeys = { 1, 3, 5, 6, 8, 10, 12, 13, 15, 17, 18, 20, 22, 24, 25 }; //White Keys notes numbers (pitch) public int[] bKeys = { 0, 2, 0, 4, 0, 0, 7, 0, 9, 0, 11, 0, 0, 14, 0, 16, 0, 0, 19, 0, 21, 0, 23, 0, 0 }; //Black Keys notes numbers (pitch) int[] wPos = { 35, 70, 105, 140, 175, 210, 245, 280, 315, 350, 385, 420, 455, 490, 525 }; // Position of White Keys on the Panel int[] bPos = { 0, 57, 0, 92, 0, 0, 162, 0, 197, 0, 232, 0, 0, 302, 0, 337, 0, 0, 407, 0, 442, 0, 477, 0, 1 }; //Position of the Black Keys in the Panel private void Form1_Load(object sender, System.EventArgs e) { for (int i = 0; i < 15; i++) { WhiteKey wk = new WhiteKey(wKeys[i], wPos[i]-35,0); //create a new white Key with [i] Pitch, at that x position and at y =0 position wk.MouseDown += onMouseDown; //Plays the Key and starts Timer wk.MouseUp += onMouseUp; // Holds the data like Time and shape and so this.panel1.Controls.Add(wk); //Give it control (to play and edit) } for (int i = 0; i < 25; i++) //same for the Black Keys but instead we use 25 keys and those denoted at 0 are where the WHITE KEYS should be placed { if (bKeys[i] != 0) { //Same as above but for Black Key which is inherits from WhiteKey bk = new BlackKey(bKeys[i], bPos[i]-35, 0); bk.MouseDown += onMouseDown; bk.MouseUp += onMouseUp; this.panel1.Controls.Add(bk); this.panel1.Controls[this.panel1.Controls.Count - 1].BringToFront(); //Make the Black Keys show OVER the white } } } //Method showing what happens when you do a MouseDown Event private void onMouseDown(object sender, MouseEventArgs e) { wk = sender as WhiteKey; //gets the WhiteKey Controls pitch = wk.pitch; //assign pitch sp.SoundLocation = @"..\\..\\bin\\Debug\\sound\\mapped\\" + pitch + ".wav"; //find that pressed note sp.Play(); //play it sw.Reset(); //Reset Stop Watch sw.Start(); //Start Time } private void timeTick(object sender, EventArgs e) { duration++; } private void onMouseUp (object sender, MouseEventArgs e) { if (e.Button == MouseButtons.Left) { sw.Stop(); //Stop time duration = (int)sw.ElapsedMilliseconds / 100; textBox.Text += (string)(pitch + " , "); //add the Pitch used to the textbox // Will determine the Music Note Image if (duration >= 0 && duration < 2) { nShape = "Quaver"; } else if (duration >= 2 && duration < 5) { nShape = "Crotchet"; } else if (duration >= 5 && duration < 8) { nShape = "minim"; } else if (duration >= 8 && duration < 10) { nShape = "DotMin"; } else if (duration >= 10) { nShape = "SemiBreve"; } count++; //will help Determine the 'x' coordiante of the Music Note nPos = xOff * count; //moves the x-coordinate by 35 pixels each note mn = new MusicNote(nPos,pitch,duration,nShape); //Creation of a new MusicNote pictureBox1.Controls.Add(this.mn); //PROBLEM --- Doesn't add to the PictureBox (Does Nothing) pictureBox1.Controls[pictureBox1.Controls.Count - 1].BringToFront(); //Brought to front of stave to make sure it doesn't get hidden in background } } } }

使用系统；使用系统线程；使用System.Collections.Generic；使用系统组件模型；使用系统数据；使用系统图；使用System.Linq；使用系统文本；使用系统诊断；使用System.Threading.Tasks；使用System.Windows.Forms；使用系统、媒体；使用系统集合；名称空间钢琴 { 公共部分类Form1:Form { 公共表格1（） { 初始化组件（）； } //音符、钢琴键以及围绕键盘和音符的所有变量的对象怀特基作品；布莱克基bk；公众国际音高；公共int持续时间=0；字符串nShape=“”；公共常数int xOff=35；整数计数=0； int nPos=0；公共字符串rootFolder=@“.\..\\bin\\Debug\\images\\”； MusicNote mn； MusicStaff ms； SoundPlayer sp=新的SoundPlayer（）；秒表sw=新秒表（）； //---------------黑白键创建按钮和位置------------------ public int[]wKeys={1,3,5,6,8,10,12,13,15,17,18,20,22,24,25}；//白键注释数字（音高） public int[]bKeys={0,2,0,4,0,0,0,7,0,9,0,11,0,0,0,14,0,16,0,0,0,19,0,21,0,23,0,0}；//黑键注释数字（音高） int[]wPos={35,70,105,140,175,210,245,280,315,350,385,420,455,490,525}；//面板上白键的位置 int[]bPos={0,57,0,92,0,0,162,0,197,0,232,0,0,302,0,337,0,0,407,0,442,0,477,0,1}；//面板中黑键的位置私有void Form1_加载（对象发送方，System.EventArgs e） { 对于（int i=0；i<15；i++） { 白键wk=新白键（wKeys[i]，wPos[i]-35,0）；//在x位置和y=0位置创建一个具有[i]音高的新白键 wk.MouseDown+=onMouseDown；//播放键并启动计时器 wk.MouseUp+=onMouseUp；//保存时间和形状等数据 this.panel1.Controls.Add（wk）；//赋予它控制权（播放和编辑） } 对于（int i=0；i<25；i++）//黑色键也是一样，但是我们使用25个键，而那些表示为0的键是白色键应该放置的位置 { 如果（b键[i]！=0） { //同上，但适用于从WhiteKey继承的黑键 bk=新的黑键（bKeys[i]，bPos[i]-35,0）； bk.MouseDown+=onMouseDown； bk.MouseUp+=onMouseUp；此.panel1.Controls.Add（bk）； this.panel1.Controls[this.panel1.Controls.Count-1].BringToFront（）；//使黑键显示在白键上 } } } //方法，显示执行MouseDown事件时发生的情况 MouseDown上的私有void（对象发送器，MouseEventArgs e） { wk=sender as WhiteKey；//获取WhiteKey控件音高=wk.pitch；//指定音高 sp.SoundLocation=@.\\..\\bin\\Debug\\sound\\mapped\\“+pitch+”.wav；//查找按下的音符 sp.Play（）；//播放它 sw.Reset（）；//重置秒表 sw.Start（）；//开始时间 } 私有void timeTick（对象发送方，事件参数e） { 持续时间++； } MouseUp上的私有void（对象发送器、MouseEventArgs e） { if（e.Button==MouseButtons.Left） { sw.Stop（）；//停止时间持续时间=（int）sw.ElapsedMilliseconds/100； textBox.Text+=（字符串）（音高+“，”；//添加用于文本框的音高 //将确定音符图像 if（持续时间>=0&&duration<2） { nShape=“Quaver”； } 否则如果（持续时间>=2和持续时间<5） using System; using System.Threading; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Diagnostics; using System.Threading.Tasks; using System.Windows.Forms; using System.Media; using System.Collections; namespace Piano { public partial class Form1 : Form { public Form1() { InitializeComponent(); } // Objects of Music Note, Piano Keys, and all variables surronding the Keyboard and Notes WhiteKey wk; BlackKey bk; public int pitch; public int duration = 0; string nShape = ""; public const int xOff = 35; int count = 0; int nPos = 0; public string rootFolder = @"..\..\\bin\\Debug\\images\\"; MusicNote mn; MusicStaff ms; SoundPlayer sp = new SoundPlayer(); Stopwatch sw = new Stopwatch(); //--------------- White and Black Keys Creation both Buttons and Position------------------ public int[] wKeys = { 1, 3, 5, 6, 8, 10, 12, 13, 15, 17, 18, 20, 22, 24, 25 }; //White Keys notes numbers (pitch) public int[] bKeys = { 0, 2, 0, 4, 0, 0, 7, 0, 9, 0, 11, 0, 0, 14, 0, 16, 0, 0, 19, 0, 21, 0, 23, 0, 0 }; //Black Keys notes numbers (pitch) int[] wPos = { 35, 70, 105, 140, 175, 210, 245, 280, 315, 350, 385, 420, 455, 490, 525 }; // Position of White Keys on the Panel int[] bPos = { 0, 57, 0, 92, 0, 0, 162, 0, 197, 0, 232, 0, 0, 302, 0, 337, 0, 0, 407, 0, 442, 0, 477, 0, 1 }; //Position of the Black Keys in the Panel private void Form1_Load(object sender, System.EventArgs e) { for (int i = 0; i < 15; i++) { WhiteKey wk = new WhiteKey(wKeys[i], wPos[i]-35,0); //create a new white Key with [i] Pitch, at that x position and at y =0 position wk.MouseDown += onMouseDown; //Plays the Key and starts Timer wk.MouseUp += onMouseUp; // Holds the data like Time and shape and so this.panel1.Controls.Add(wk); //Give it control (to play and edit) } for (int i = 0; i < 25; i++) //same for the Black Keys but instead we use 25 keys and those denoted at 0 are where the WHITE KEYS should be placed { if (bKeys[i] != 0) { //Same as above but for Black Key which is inherits from WhiteKey bk = new BlackKey(bKeys[i], bPos[i]-35, 0); bk.MouseDown += onMouseDown; bk.MouseUp += onMouseUp; this.panel1.Controls.Add(bk); this.panel1.Controls[this.panel1.Controls.Count - 1].BringToFront(); //Make the Black Keys show OVER the white } } } //Method showing what happens when you do a MouseDown Event private void onMouseDown(object sender, MouseEventArgs e) { wk = sender as WhiteKey; //gets the WhiteKey Controls pitch = wk.pitch; //assign pitch sp.SoundLocation = @"..\\..\\bin\\Debug\\sound\\mapped\\" + pitch + ".wav"; //find that pressed note sp.Play(); //play it sw.Reset(); //Reset Stop Watch sw.Start(); //Start Time } private void timeTick(object sender, EventArgs e) { duration++; } private void onMouseUp (object sender, MouseEventArgs e) { if (e.Button == MouseButtons.Left) { sw.Stop(); //Stop time duration = (int)sw.ElapsedMilliseconds / 100; textBox.Text += (string)(pitch + " , "); //add the Pitch used to the textbox // Will determine the Music Note Image if (duration >= 0 && duration < 2) { nShape = "Quaver"; } else if (duration >= 2 && duration < 5) { nShape = "Crotchet"; } else if (duration >= 5 && duration < 8) { nShape = "minim"; } else if (duration >= 8 && duration < 10) { nShape = "DotMin"; } else if (duration >= 10) { nShape = "SemiBreve"; } count++; //will help Determine the 'x' coordiante of the Music Note nPos = xOff * count; //moves the x-coordinate by 35 pixels each note mn = new MusicNote(nPos,pitch,duration,nShape); //Creation of a new MusicNote pictureBox1.Controls.Add(this.mn); //PROBLEM --- Doesn't add to the PictureBox (Does Nothing) pictureBox1.Controls[pictureBox1.Controls.Count - 1].BringToFront(); //Brought to front of stave to make sure it doesn't get hidden in background } } } } [DllImport("winmm.dll")] private static extern bool PlaySound(string lpszName, int hModule, int dwFlags);