一、先造一个窗体，然后在窗体里面增加菜单栏及原始的TabControl选项卡
<Grid>
<Menu>
<MenuItem Header="文件" Click="MenuItem_Click_3">
<MenuItem Header="打开新窗口" Click="MenuItem_Click_1"></MenuItem>
<MenuItem Header="退出" Click="MenuItem_Click_4" ></MenuItem>
</MenuItem>
<MenuItem Header="帮助">
<MenuItem Header="关于我们"></MenuItem>
</MenuItem>
</Menu>
<TabControl Name="TabControl1" HorizontalAlignment="Left" Height="" Margin="0,20,0,0" VerticalAlignment="Top" Width="">
<TabItem Header="原始窗口">
<Grid Background="#FFE5E5E5">
<TextBox HorizontalAlignment="Left" Height="" Margin="" TextWrapping="Wrap" Text="" VerticalAlignment="Top" Width=""/> </Grid>
</TabItem>
</TabControl> </Grid>
二、当点击打开新窗口，便弹出新窗口，并且在新窗口里增加一个占满的文本框
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
}
private int i = ;//定义一个i用来使新造的Item名字不同
TextBox t;//每造一个新Item 然后将Textbox扔进去
private void MenuItem_Click_1(object sender, RoutedEventArgs e) //打开新窗口按钮
{
TabItem ti = new TabItem();//造一个新选项卡
ti.Header = "新窗口"+(i+);//新选项卡的名字
TabControl1.Items.Add(ti);//将造好的新选项卡扔进TabControl1里
t = new TextBox();//实体化一个新文本框
t.Width = ;
t.Height = ;
//下面开始将文本框添加到新造的选项卡中
ti.Content = t;
//每造一个新窗口便默认突出显示为新窗口
TabControl1.SelectedIndex = i+;
//TabControl1.SelectedIndex = TabControl1.Items.Count - 1;
i++;
//双击每个选项卡触发的事件
ti.MouseDoubleClick+=ti_MouseDoubleClick;
} private void MenuItem_Click_4(object sender, RoutedEventArgs e)//关闭按钮
{
this.Close();
}
private void ti_MouseDoubleClick(object sender, MouseButtonEventArgs e)
{
TabItem s = (TabItem)sender; //sender代表每个选项卡
TabControl1.Items.Remove(s);
}
private void MenuItem_Click_3(object sender, RoutedEventArgs e)
{ }
}