printCreview横向模式inC＃

Question

如何将打印预览和打印代码设置为横向？

 this.printPreviewDialog1.AutoScrollMargin = new System.Drawing.Size(0, 0);
            this.printPreviewDialog1.AutoScrollMinSize = new System.Drawing.Size(0, 0);
            this.printPreviewDialog1.ClientSize = new System.Drawing.Size(700, 600);
            this.printPreviewDialog1.Document = this.printDocument1;
            this.printPreviewDialog1.Enabled = true;
            this.printPreviewDialog1.Icon = ((System.Drawing.Icon)(resources.GetObject("printPreviewDialog1.Icon")));
            this.printPreviewDialog1.Name = "printPreviewDialog1";
            this.printPreviewDialog1.Visible = false;

            // 
            // printDocument1
            // 
            this.printDocument1.PrintPage += new System.Drawing.Printing.PrintPageEventHandler(this.printDocument1_PrintPage_1);

Answer 1

这就是诀窍

this.printDocument1.DefaultPageSettings.Landscape = true;

Answer 2

不会这个

var doc = new PrintDocument();
doc.DefaultPageSettings.Landscape = true;

诀窍？

它也可能会处理打印预览问题。