我认为e.ToolStrip.Parent
财产将是关键,但它总是null
。
一种选择是在您的 中创建一个构造函数ToolStripProfessionalRenderer
,并传入对控件的引用。
class CustomRenderer : ToolStripProfessionalRenderer
{
// All those controls derive from ToolStrip so we can use the base class here
private ToolStrip ts;
public CustomRenderer(ToolStrip ts)
{
this.ts = ts;
}
protected override void OnRenderImageMargin(ToolStripRenderEventArgs e)
{
if (ts is MenuStrip)
{
}
else if (ts is StatusStrip)
{
}
else // ts is ToolStrip
{
}
}
然后在实例化它时传入一个引用:
toolStrip1.Renderer = new CustomRenderer(toolStrip1);
statusStrip1.Renderer = new CustomRenderer(statusStrip1);
一个替代选项,从这个答案修改。
忘记 ctor 并Owner
重复测试,直到获得正确的父控件:
protected override void OnRenderImageMargin(ToolStripRenderEventArgs e)
{
ToolStrip owner = e.ToolStrip;
while (owner is ToolStripDropDownMenu)
owner = (owner as ToolStripDropDownMenu).OwnerItem.Owner;
if (ts is MenuStrip)
{
}
else if (ts is StatusStrip)
{
}
else // ts is ToolStrip
{
}
}