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我正在使用默认打印机打印多行文本框。我想通过使用 PrintDialog 来提供打印机选择。当我设置它时，会出现 PrintDialog 并且您选择一台打印机，但是当您按“确定”时，它总是会转到默认打印机。任何想法，将不胜感激。我已经包含了适当的代码。

private void printTreeViewToolStripMenuItem_Click(object sender, EventArgs e) //---added 6-29-12
    {
        textTreeView.Clear();

        CreateRowsFromNode(treeView1.Nodes[0], 0, "");

        //InitPrint(textTreeView.Text).Print();

        printDialog1.Document = InitPrint(textTreeView.Text);

        if (printDialog1.ShowDialog() == DialogResult.OK)
        {
            InitPrint(textTreeView.Text).Print();
        }
    }

最初没有PrintDialog，它只调用InitPrint(textTreeView.Text).Print()。如上所示添加了 printDialog1。

textTreeView 是要打印的 TextBox。textTreeView 文本框中的每一行都包含一个使用 CreateRowsFromNode 生成的节点文本值。

InitPrint 看起来像这样：

string TextToPrint; //---added 6-29-12
    public PrintDocument InitPrint(string TextToPrint)
    {
        this.TextToPrint = TextToPrint;
        PrintDocument PD = new PrintDocument();
        PD.OriginAtMargins = true;
        PD.DefaultPageSettings.Landscape = true; //---added 6-29-12
        PD.PrintPage += PrintPage;
        return PD;
    }


public void PrintPage(object sender, PrintPageEventArgs e) //---added 6-29-12
    {
        int Chars = 0;
        int Lines = 0;
        Font Font = new Font("Courier new", 9);
        //Font Font = new Font("Arial", 10);
        Rectangle R = new Rectangle(Point.Empty, e.MarginBounds.Size);
        StringFormat SF = StringFormat.GenericTypographic;
        e.Graphics.MeasureString(TextToPrint, Font, R.Size, SF, out Chars, out Lines);
        e.Graphics.DrawString(TextToPrint, Font, Brushes.Black, R, SF);
        TextToPrint = TextToPrint.Substring(Chars);
        e.HasMorePages = (TextToPrint.Length > 0);
    }

将 TreeView 读入 textTreeView 的代码是：

private void CreateRowsFromNode(TreeNode node, int level, string L = "") //---added 6-29-12
    {

        string data = "";
        string CurrentArrow = null;
        string NextArrow = "";

        //if root then no arrows needed
        if (node.Parent == null) {
            CurrentArrow = "";
            NextArrow = "";
        //if Not Last node of parent
        }
        else if (!(node.Parent.Nodes[node.Parent.Nodes.Count - 1] == node))
        {
            CurrentArrow = "├";

            NextArrow = "│";
        // is last node of parent
        } else {
            CurrentArrow = "└";
            NextArrow = " ";

        }
        //Add the next node to the TextBox
        if (node.Text.Length >= 115)
            textTreeView.Text = textTreeView.Text + L + CurrentArrow + node.Text.Substring(0,115) + vbNewLine;
        else
            textTreeView.Text = textTreeView.Text + L + CurrentArrow + node.Text + vbNewLine;

        //Add the Next Arrow to Left Part of string
        L = L + NextArrow;

        //Loop Through all its child nodes
        foreach (TreeNode nod in node.Nodes) {
            CreateRowsFromNode(nod, level + 1, L);
        }
    }
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1 回答 1

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在此处尝试使用PrinterSettings.InstalledPrintersMSDN 中的选项

**PrintDialog.PrinterSettings - Specifies information about how a document is printed, including the printer that prints it, when printing from a Windows Forms application.**
于 2012-07-02T14:05:23.260 回答