【问题标题】:how to fix line width for print document printing c#如何修复打印文档打印的线宽c#
【发布时间】:2017-02-24 15:42:30
【问题描述】:
我正在通过 c# 中的打印文档对象打印一系列字符串,它工作正常。默认情况下,每个字符串都打印在新行中。但是如果一个字符串包含的字符多于一行可以打印的字符,那么剩余的字符将被截断并且不会出现在下一行。
谁能告诉我如何修复一行的字符数并在新行上打印超出的字符?
谢谢
【问题讨论】:
标签:
c#
printing
graphics
document
printdocument
【解决方案1】:
为了使您的文本在每一行的末尾换行,您需要调用采用Rectangle 对象的DrawString 重载。文本将被包裹在该矩形内:
private void pd_PrintPage(object sender, PrintPageEventArgs e)
{
//This is a very long string that should wrap when printing
var s = new string('a', 2048);
//define a rectangle for the text
var r = new Rectangle(50, 50, 500, 500);
//draw the text into the rectangle. The text will
//wrap when it reaches the edge of the rectangle
e.Graphics.DrawString(s, Me.Font, Brushes.Black, r);
e.HasMorePages = false;
}
【解决方案2】:
这可能不是最佳实践,但一种选择是拆分数组,然后根据字符串是否仍低于行长度限制将其添加到行字符串中。请记住,如果不使用等宽文本,则必须考虑字母宽度。
例子:
String sentence = "Hello my name is Bob, and I'm testing the line length in this program.";
String[] words = sentence.Split();
//Assigning first word here to avoid begining with a space.
String line = words[0];
//Starting at 1, as 0 has already been assigned
for (int i = 1; i < words.Length; i++ )
{
//Test for line length here
if ((line + words[i]).Length < 10)
{
line = line + " " + words[i];
}
else
{
Console.WriteLine(line);
line = words[i];
}
}
Console.WriteLine(line);