如何关闭“打印预览”对话框？

Question

I have a document printing function. I am trying to close the Print Preview Dialog form after the user presses the Print button. Once the print button in the print preview dialog is pressed, the event starts the function below to print the document. I am expecting the form to close when I call printPreviewDialog1.Close() but it just goes over the line and nothing happens.

But it doesn't close the print preview dialog form after the print job is done.

    public void _start_Print(object sender, EventArgs e)
    {
        printDocument1.Print();

    }

---

Added as requested in the comments. Initializing Print Preview Dialog

    private void btnPrint_Click(object sender, EventArgs e)
    {
        PrintPreviewDialog printPreviewDialog1 = new PrintPreviewDialog();
        printPreviewDialog1.Document = printDocument1;

        ToolStrip ts = new ToolStrip();
        ts.Name = "wrongToolStrip";
        foreach (Control ctl in printPreviewDialog1.Controls)
        {
            if (ctl.Name.Equals("toolStrip1"))
            {
                ts = ctl as ToolStrip;
                break;
            }
        }

        ToolStripButton printButton = new ToolStripButton();
        ToolStripButton closeButton = new ToolStripButton();

        foreach (ToolStripItem tsi in ts.Items)
        {
            if (tsi.Name.Equals("printToolStripButton"))
            {
                printButton = tsi as ToolStripButton;
            }
            else if (tsi.Name.Equals("closeToolStripButton"))  // idk if this is the name of the close button im trying to programmatically close it after printing
            {
                closeButton = tsi as ToolStripButton;
            }
        }

        ts.Items.Remove(printButton);
        ToolStripButton b = new ToolStripButton();
        b.ImageIndex = printButton.ImageIndex;
        b.Visible = true;
        ts.Items.Insert(0, b);
        b.Click += new EventHandler(this._start_Print);

        printPreviewDialog1.WindowState = FormWindowState.Maximized;
        printPreviewDialog1.ShowDialog();
        printPreviewDialog1.Dispose(); //< doesnt do anything 
        closeButton.PerformClick(); // < doesn't do anything, possibly using wrong name for toolstripbutton

    }

---

Initializing Print Document as requested in the comments

    private void printDocument1_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e)
    {
        e.Graphics.DrawRectange(Pens.Black, 60, 60, 60,60);
    }

Answer 1

Solved.

I created a Global ToolStripButton and initialized this button with the closeToolStripButton in the printPreviewDialog .

Then I programmatically clicked this button after the print job was done.

    private ToolStripButton closeButton = new ToolStripButton();  <-- global variable

    private void btnPrint_Click(object sender, EventArgs e)
    {
        foreach (ToolStripItem tsi in ts.Items)
        { 
            if (tsi.Name.Equals("closeToolStripButton"))
            {
                closeButton = tsi as ToolStripButton;
            }
            else if (tsi.Name.Equals("printToolStripButton"))
            {
                printButton = tsi as ToolStripButton;
            }
        }

        ts.Items.Remove(printButton);
        ToolStripButton b = new ToolStripButton();
        b.ImageIndex = printButton.ImageIndex;
        b.Visible = true;
        ts.Items.Insert(0, b);
        b.Click += new EventHandler(this._start_Printer); //<-- this starts the printer event where i "PerformClick() on the initialized closeButton"

        printprevDialog.WindowState = FormWindowState.Maximized;
        printprevDialog.ShowDialog();

    }


    public void _start_Printer(object sender, EventArgs e) // <--- then i just performed the close click here right after i hit the print button
    {
        printDocument1.Print();
        closeButton.PerformClick(); // <-- this way im not violating cross thread operations
    }