word中的加粗变斜之类的一直让我以为是button，直到我接触了自定义控件，才发现实现这种机能最好的是CheckBox，然后我们在做一个系统的时候，这种控件有可能要用好多次，总不能在用一次的时候，就去拉一个CheckBox，并进行各种复制吧，所以最好的方式就是自定义一个控件，自定义点击的Image属性，这样你只要替换掉Image，你就要让这个变成变粗的CheckBox，变斜的CheckBox等等。
private void CmpCheckButton_MouseLeave(object sender, EventArgs e)
{
if (!this.Checked)
{
this.BackgroundImage = ImageNormal;
this.Invalidate();
}
}
private void CmpCheckButton_MouseHover(object sender, EventArgs e)
{
if (!this.Checked)
{
this.BackgroundImage = ImageMouseEnter;
this.Invalidate();
}
}
private void CmpCheckButton_CheckedChanged(object sender, EventArgs e)
{
var image = ImageNormal;
if (this.Checked && ImageChecked != null)
{
image = ImageChecked;
}
else
{
image = ImageMouseEnter;
}
this.BackgroundImage = image;
this.Invalidate();
}
private System.Drawing.Image _imageNormal;
[Description("通常图片")]
public System.Drawing.Image ImageNormal
{
get { return _imageNormal; }
set
{
_imageNormal = value;
this.BackgroundImage = _imageNormal;
this.Invalidate();
}
}
private System.Drawing.Image _imageChecked;
[DefaultValue(null), Description("Checked状态图片")]
public System.Drawing.Image ImageChecked
{
get { return _imageChecked; }
set
{
_imageChecked = value;
if (Checked) this.BackgroundImage = _imageChecked;
this.Invalidate();
}
}
private System.Drawing.Image _imageMouseEnter;
[DefaultValue(null), Description("MouseEnter状态图片")]
public System.Drawing.Image ImageMouseEnter
{
get { return _imageMouseEnter; }
set
{
_imageMouseEnter = value;
this.BackgroundImage = value;
this.Invalidate();
}
}