Question

C#,textbox怎么把边框设置颜色,把四个角改成圆角,设置属性可以吗?

Answer 1

textbox 系统控件，直接改肯定是没办法的，只能自己重写控件，继承TextBox
而且圆角应该只能完全重写控件
给你个改边框颜色的代码
public

class

MyTextBox

:

TextBox
{
public

MyTextBox()
{
this.BorderStyle

=

BorderStyle.FixedSingle;
}
protected

override

void

WndProc(ref

Message

m)
{
base.WndProc(ref

m);
if

(m.Msg

==

0xf

||

m.Msg

==

0x14

||

m.Msg

==

0x85)
{
if

(this.BorderStyle

==

BorderStyle.FixedSingle)
{
using

(Graphics

g

=

Graphics.FromHwnd(this.Handle))
{
using

(Pen

pen

=

new

Pen(Color.Red))
{
g.DrawRectangle(pen,

0,

0,

this.Width

-

1,

this.Height

-

1);
}
}
}
}
}
}