我要评论为了实现自定义的menu和contextmenu效果，下面演示代码通过派生professionalcolortable类，在自定义的类中重写professionalcolortable类的相关联的属性，从而实现自定义菜单效果。
using system.drawing;
using system.windows.forms;
public class customtoolstripcolortable : professionalcolortable
{
/// <summary>
/// 主菜单项被点击后，展开的下拉菜单面板的边框
/// </summary>
public override color menuborder
{
get
{
return color.fromargb(37, 37, 37);
}
}
/// <summary>
/// 鼠标移动到菜单项（主菜单及下拉菜单）时，下拉菜单项的边框
/// </summary>
public override color menuitemborder
{
get
{
return color.transparent;
}
}
#region 顶级菜单被选中背景颜色
public override color menuitemselectedgradientbegin
{
get
{
return color.fromargb(37, 37, 37);
}
}
public override color menuitemselectedgradientend
{
get
{
return color.fromargb(37, 37, 37);
}
}
#endregion
#region 顶级菜单被按下是，菜单项背景色
public override color menuitempressedgradientbegin
{
get
{
return color.black;
}
}
public override color menuitempressedgradientmiddle
{
get
{
return color.fromargb(37, 37, 37);
}
}
public override color menuitempressedgradientend
{
get
{
return color.black;
}
}
#endregion
/// <summary>
/// 菜单项被选中时的颜色
/// </summary>
public override color menuitemselected
{
get
{
return color.fromargb(37, 37, 37);
}
}
#region 下拉菜单面板背景设置（不包括下拉菜单项）
//下拉菜单面板背景一共分为2个部分，左边为图像区域，右侧为文本区域，需要分别设置
//toolstripdropdownbackground设置文本部分的背景色
public override color toolstripdropdownbackground
{
get
{
return color.black;
}
}
//以imagemargingradient开头的3个设置的是图像部分的背景色，begin->end是从左到右的顺序
public override color imagemargingradientbegin
{
get
{
return color.black;
}
}
public override color imagemargingradientmiddle
{
get
{
return color.black;
}
}
public override color imagemargingradientend
{
get
{
return color.black;
}
}
#endregion
}
然后对需要实现自定义风格的菜单（如：contextmenustrip1）应用如下代码：
contextmenustrip1.rendermode = toolstriprendermode.professional; contextmenustrip1.renderer = new toolstripprofessionalrenderer(new customtoolstripcolortable());
contextmenu的自定义
1.针对整个contextmenu， 自定义一个style，去掉竖分割线
<style x:key="datagridcolumnsheadercontextmenustyle" targettype="{x:type contextmenu}">
<setter property="snapstodevicepixels" value="true"/>
<setter property="grid.issharedsizescope" value="true"/>
<setter property="hasdropshadow" value="true"/>
<setter property="template">
<setter.value>
<controltemplate targettype="{x:type contextmenu}">
<border uid="border_93">
<border.style>
<style targettype="{x:type border}">
<setter property="tag" value="{dynamicresource {x:static systemparameters.dropshadowkey}}"/>
<style.triggers>
<datatrigger binding="{binding tag, relativesource={relativesource self}}" value="true">
<setter property="effect">
<setter.value>
<dropshadoweffect blurradius="4" opacity="0.8" shadowdepth="1"/>
</setter.value>
</setter>
</datatrigger>
</style.triggers>
</style>
</border.style>
<border borderbrush="{templatebinding borderbrush}" borderthickness="{templatebinding borderthickness}" background="{templatebinding background}" uid="border_50">
<scrollviewer cancontentscroll="true" uid="scrollviewer_9"
style="{dynamicresource {componentresourcekey resourceid=menuscrollviewer, typeintargetassembly={x:type frameworkelement}}}">
<itemspresenter keyboardnavigation.directionalnavigation="cycle" snapstodevicepixels="{templatebinding snapstodevicepixels}" uid="itemspresenter_5"/>
</scrollviewer>
</border>
</border>
</controltemplate>
</setter.value>
</setter>
</style>
2. 针对其中的itemcontainerstyle来写个menuitem的control template
<style x:key="menuitemstyle1" targettype="{x:type menuitem}"> <setter property="template" value="{dynamicresource menuitemcontroltemplate1}"/> <setter property="margin" value="0"></setter> <setter property="padding" value="0"></setter> </style> <controltemplate x:key="menuitemcontroltemplate1" targettype="{x:type menuitem}"> <grid x:name="grid" snapstodevicepixels="true" verticalalignment="stretch" horizontalalignment="stretch" > <contentpresenter contenttemplate="{templatebinding headertemplate}" content="{templatebinding header}" grid.column="0" contentstringformat="{templatebinding headerstringformat}" contentsource="header" recognizesaccesskey="true" snapstodevicepixels="{templatebinding snapstodevicepixels}"/> </grid> <controltemplate.triggers> <trigger property="ishighlighted" value="true"> <setter property="background" targetname="grid" value="{dynamicresource brush_pa_csw_listboxitemdefaulthighlight}"/> </trigger> <trigger property="isenabled" value="false"> <setter property="foreground" value="#ff9a9a9a"/> </trigger> </controltemplate.triggers> </controltemplate>
3. contextmenu使用上述style
<contextmenu x:key="datagridcolumnsheadercontextmenu"
itemtemplate="{dynamicresource headerconfigitemtemplate}"
itemcontainerstyle="{dynamicresource menuitemstyle1}"
style="{dynamicresource datagridcolumnsheadercontextmenustyle}"
/>
以上就是本文通过c#实现menu和contextmenu自定义风格及contextmenu自定义的全部内容，希望大家喜欢。
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