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如何打印TreeView？

发布于 2024-10-31 21:49:32 字数 76 浏览 1 评论 0原文

我想打印当用户单击“打印”按钮时树视图中显示的数据使用打印文档并在实际纸张上打印我正在使用 Visual Studio 2008

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山川志 2024-11-07 21:49:32

尝试这些链接是否有任何帮助：

http://bytes.com /topic/c-sharp/answers/886644-printing-treeview

https://stackoverflow.com/questions/5602383/want-to-print-data-in-treeview-in-c

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雪花飘飘的天空 2024-11-07 21:49:32

在内存中创建一个TreeView，然后复制重要属性并传输根节点。之后创建一个内存位图并通过 DrawToBitmap 函数绘制 Treeview 内容，在页面上绘制图像并将根节点恢复到原始位置。

    private void printDocument1_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e)
    {
        var memtree = new TreeView();
        var rn = treeView1.Nodes[0];
        treeView1.Nodes.Remove(rn);
        memtree.ImageList = treeView1.ImageList;
        memtree.BorderStyle = BorderStyle.None;
        memtree.Nodes.Add(rn);
        memtree.ClientSize = new Size(e.MarginBounds.Width, e.MarginBounds.Height);
        var bmp = new Bitmap(e.MarginBounds.Width, e.MarginBounds.Height);
        memtree.DrawToBitmap(bmp, new Rectangle(0, 0, e.MarginBounds.Width-1, e.MarginBounds.Height-1));
        e.Graphics.DrawImage(bmp, e.MarginBounds.Left, e.MarginBounds.Top, e.MarginBounds.Width -1, e.MarginBounds.Height -1);
        memtree.Nodes.Remove(rn);
        treeView1.Nodes.Add(rn);
    }

Create a in memory TreeView and then copy the significant properties and transfer a root node. After do that create a in memory bitmap and draw a Treeview content by DrawToBitmap Function, draw a image on page and restore root node to original place.

    private void printDocument1_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e)
    {
        var memtree = new TreeView();
        var rn = treeView1.Nodes[0];
        treeView1.Nodes.Remove(rn);
        memtree.ImageList = treeView1.ImageList;
        memtree.BorderStyle = BorderStyle.None;
        memtree.Nodes.Add(rn);
        memtree.ClientSize = new Size(e.MarginBounds.Width, e.MarginBounds.Height);
        var bmp = new Bitmap(e.MarginBounds.Width, e.MarginBounds.Height);
        memtree.DrawToBitmap(bmp, new Rectangle(0, 0, e.MarginBounds.Width-1, e.MarginBounds.Height-1));
        e.Graphics.DrawImage(bmp, e.MarginBounds.Left, e.MarginBounds.Top, e.MarginBounds.Width -1, e.MarginBounds.Height -1);
        memtree.Nodes.Remove(rn);
        treeView1.Nodes.Add(rn);
    }

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