public PrintPreviewDialog(PrintManager printManager)
 {
     InitializeComponent();
     _manager = printManager;
     DataContext = this;
     ChangePage(0);//显示第一页
 }
        /// <summary>
        /// 系统初始化
        /// </summary>
        private void Init()
        {
            rtfManager   = new RichTextBoxDocumentManager(RichTextBox1);
            printManager = new PrintManager(RichTextBox1);

            OpenFileDialog1.Filter = "所有可处理类型的文件|*.xaml;*.xamlpackage;*.rtf;*.txt|FlowDocument的纯XAML文件(*.xaml)|*.xaml|FlowDocument的XAML包文件(*.xamlpackage)|*.xamlpackage|RTF文件(*.rtf)|*.rtf|纯文本文件(*.txt)|*.txt|任意扩展名文件(*.*)|*.*";


            //设置默认字体大小
            RichTextBox1.FontSize = SystemConfig.configArgus.RichTextEditorDefaultFontSize;
            //显示当前字体尺寸
            //txtFontSize.Text = RichTextBox1.FontSize.ToString();
            //设定块元素间距,即回车后两段之间的距离
            RichTextBox1.Document.LineHeight = 2;

            RichTextBox1.AutoWordSelection = false;
            //必须要将MouseLeftDown事件用代码加入,否则,无法激发!
            RichTextBox1.AddHandler(UIElement.MouseLeftButtonDownEvent, new MouseButtonEventHandler(RichTextBox1_MouseLeftButtonDown), true);
        }
        /// <summary>
        /// 系统初始化
        /// </summary>
        private void Init()
        {
            rtfManager = new RichTextBoxDocumentManager(RichTextBox1);
            printManager = new PrintManager(RichTextBox1);

            OpenFileDialog1.Filter = "所有可处理类型的文件|*.xaml;*.xamlpackage;*.rtf;*.txt|FlowDocument的纯XAML文件(*.xaml)|*.xaml|FlowDocument的XAML包文件(*.xamlpackage)|*.xamlpackage|RTF文件(*.rtf)|*.rtf|纯文本文件(*.txt)|*.txt|任意扩展名文件(*.*)|*.*";

            //加载字体下拉列表
            LoadSystemFontsToListBox(cboFontFamilies);
            //设置默认字体大小
            RichTextBox1.FontSize = SystemConfig.configArgus.RichTextEditorDefaultFontSize;
            //显示当前字体尺寸
            txtFontSize.Text = RichTextBox1.FontSize.ToString();
            //设定块元素间距,即回车后两段之间的距离
            RichTextBox1.Document.LineHeight = 2;

            RichTextBox1.AutoWordSelection = false;
            //必须要将MouseLeftDown事件用代码加入,否则,无法激发!
            RichTextBox1.AddHandler(UIElement.MouseLeftButtonDownEvent, new MouseButtonEventHandler(RichTextBox1_MouseLeftButtonDown), true);
        }