在富文本框中绘制线条 [英] draw line in rich textbox
本文介绍了在富文本框中绘制线条的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
hi
i想按Enter键画一条线
喜欢这样
Hello World
___________________________
i am jack
___________________________
H ru jack?
___________________________
i cant :(
请帮帮我
解决方案
这段代码对我有用:
私有 Sub RichTextBox1_KeyUp(sender As Object ,e As KeyEventArgs)句柄 RichTextBox1.KeyUp
如果 e.KeyCode = Keys。返回 然后
RichTextBox1.AppendText( _______________)
RichTextBox1.AppendText(Environment.NewLine)
结束 如果
结束 Sub
祝你有愉快的一天。
你也可以这样做在javascript中检测输入密钥,然后追加行和新行。
你能给我链接到该富文本编辑器的演示。
如果你想绘制控件使用:
http://msdn.microsoft.com/fr-fr/library/system.windows.forms.control.creategraphics.aspx [ ^ ]
http://msdn.microsoft.com/fr-fr/library/system.drawing.graphics.aspx [ ^ ]
例如:
Dim gdi As Graphics = richTextBox1.CreateGraphics()
gdi.DrawLine(Pens.Black, new Point( 0 ,(richTextBox1.Lines.Length + 1 ) * 10 ), new 点( 50 ,(richTextBox1.Lines.Length + 1 )* 10 ))
gdi.Dispose( )
hi
i want draw a line when press Enter key
like this
Hello World
___________________________
i am jack
___________________________
H r u jack?
___________________________
i cant :(
please help me
解决方案
Hi, this code works for me:
Private Sub RichTextBox1_KeyUp(sender As Object, e As KeyEventArgs) Handles RichTextBox1.KeyUp If e.KeyCode = Keys.Return Then RichTextBox1.AppendText("_______________") RichTextBox1.AppendText(Environment.NewLine) End If End Sub
Have a nice day.
You can also do that in javascript detect enter key and then append the line and new line.
Can you give me link to the demo of that rich text editor.
If you want to draw in a control use :
http://msdn.microsoft.com/fr-fr/library/system.windows.forms.control.creategraphics.aspx[^]
http://msdn.microsoft.com/fr-fr/library/system.drawing.graphics.aspx[^]
Exemple :
Dim gdi As Graphics = richTextBox1.CreateGraphics() gdi.DrawLine(Pens.Black, new Point(0, (richTextBox1.Lines.Length + 1) * 10), new Point(50, (richTextBox1.Lines.Length + 1) * 10)) gdi.Dispose()
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