清除PictureBox – c#

我想修改这个 PictureBox Array项目.
我想放一个重置按钮,而不是清除它创建的所有PictureBox数组
更可能的形式将从头开始再次为空.

这是它的一些代码;

// Function to add PictureBox Controls
    private void AddControls(int cnumber)
    {
        imgArray = new System.Windows.Forms.PictureBox[cnumber]; // assign number array 
        for (int i = 0; i < cnumber; i++)
        {
            imgArraY[i] = new System.Windows.Forms.PictureBox(); // Initialize one variable
        }
        // When call this function you determine number of controls
    }  

    private void ImagesInFolder()
    {
        FileInfo FInfo;
        // Fill the array (imgName) with all images in any folder 
        imgName = Directory.GetFiles(Application.StartupPath  + @"\Images");
        // How many Picture files in this folder
        NumOfFiles = imgName.Length; 
        imgExtension = new String[NumOfFiles];
        for (int i = 0; i < NumOfFiles; i++)
        {
            FInfo = new FileInfo(imgName[i]);
            imgExtension[i] = FInfo.Extension; // We need to kNow the Extension
            //
        }
    }

    private void ShowFolderImages()
    {
        int Xpos = 8; 
        int Ypos = 8;
        Image img;
        Image.GetThumbnailImageAbort myCallBACk = 
            new Image.GetThumbnailImageAbort(ThumbnailCallBACk);
        MyProgress.Visible = true;
        MyProgress.Minimum = 1;
        MyProgress.Maximum = NumOfFiles;
        MyProgress.Value = 1;
        MyProgress.Step = 1; 
        String[] Ext = new String [] {".GIF",".JPG",".bR_159_11845@P",".PNG"};
        AddControls(NumOfFiles);
        for (int i = 0; i < NumOfFiles; i++)
        {
            switch (imgExtension[i].ToUpper())
            {
                case ".JPG":
                case ".bR_159_11845@P":
                case ".GIF":
                case ".PNG":
                    img = Image.FromFile(imgName[i]); // or img = new Bitmap(imgName[i]);
                    imgArraY[i].Image = img.GetThumbnailImage(64,64,myCallBACk,IntPtr.Zero);
                    img = null;
                    if (Xpos > 432) // six images in a line
                    {
                        Xpos = 8; // leave eight pixels at Left 
                        Ypos = Ypos + 72;  // height of image + 8
                    }
                    imgArraY[i].Left = Xpos;
                    imgArraY[i].Top = Ypos;
                    imgArraY[i].Width = 64;
                    imgArraY[i].Height = 64;
                    imgArraY[i].Visible = true;
                    // Fill the (tag) with name and full path of image
                    imgArraY[i].Tag = imgName[i]; 
                    imgArraY[i].Click += new System.EventHandler(ClickImagE);
                    this.BACkPanel.Controls.Add(imgArraY[i]);
                    Xpos = Xpos + 72; // width of image + 8
                    Application.DoEvents();
                    MyProgress.PerformStep();
                    break;
            }
        }
        MyProgress.Visible = false;
    }

    private bool ThumbnailCallBACk()
    {
        return false;
    }

    private void btnLoad_Click(object sender,System.EventArgs E)
    {
        ImagesInFolder(); // Load images
        ShowFolderImages(); // Show images on PictureBox array 
        this.Text = "Click wanted image";
    }

我怎样才能做到这一点？

抱歉,我还没有重置按钮的任何代码.
我不知道该怎么做,我是c#的新手.

private void btnReset_Click(object sender,System.EventArgs E) 
{ 
    for(int x = this.BACkPanel.Controls.Count - 1; x >= 0; x--)
    {
        if(this.BACkPanel.Controls[x].GetType() == typeof(PictureBox))
            this.BACkPanel.Controls.Remove(X);
    }

    for(int x = 0; x < imgArray.Length; x++)
    {
        imgArraY[x].Image = null;  
        imgArraY[x] = null;
    }  
}