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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace WindowsFormsApplication1
{
class MyPrintPreviewDialog : PrintPreviewDialog
{
public MyPrintPreviewDialog()
{
var toolStrip1 = this.Controls.OfType<ToolStrip>().First();
ToolStripButton btn = new ToolStripButton();
btn.Text = "Click Me!";
btn.Click += new EventHandler((x, y) => MessageBox.Show("hello world!"));
toolStrip1.Items.Add(btn);
}
}
}
新建一个类,贴如上代码
MyPrintPreviewDialog dlg = new MyPrintPreviewDialog();
dlg.ShowDialog();