我正在开发ASP.Net中的自定义菜单控件。
我已经在ASP.Net webform c#上为菜单创建了一个单独的新项目,最终获得了我想要的输出。
欲望输出
现在,当我将菜单控件css和其他HTML代码放在VB.Net上运行的应用程序中时,所有自定义css都消失了,ASP.Net默认的CSS Classes覆盖了它。以下是我目前的输出:
这是我的主页代码:
<asp:SiteMapDataSource ID="SiteMapDataSource1" runat="server" ShowStartingNode="false" />
<asp:Menu
ID="Menu"
runat="server"
DataSourceID="SiteMapDataSource1"
Orientation="Horizontal"
OnMenuItemDataBound="OnMenuItemDataBound"
IncludeStyleBlock="false"
StaticEnableDefaultPopOutImage="false"
CssClass="AHMenu">
<LevelSubMenuStyles>
<asp:SubMenuStyle CssClass="AHlevel1" />
<asp:SubMenuStyle CssClass="AHlevel2" />
<asp:SubMenuStyle CssClass="AHlevel3" />
<asp:SubMenuStyle CssClass="AHlevel4" />
</LevelSubMenuStyles>
<LevelMenuItemStyles>
<asp:MenuItemStyle CssClass="AHlevel1Style" />
<asp:MenuItemStyle CssClass="AHlevel2Style" />
<asp:MenuItemStyle CssClass="AHlevel3Style" />
<asp:MenuItemStyle CssClass="AHlevel4Style" />
</LevelMenuItemStyles>
</asp:Menu>
在浏览器视图源中,我的所有CSS都消失了,并使用默认CSS覆盖。如下图所示:
这是我的CSS:
#Menu > ul.AHlevel1 > li:hover {
background-color: white;
}
#Menu > ul.AHlevel1 > li:hover a.AHlevel1Style {
color: black !important;
}
.AHMenu {
float: none !important;
width: 100%;
display: flex;
justify-content: space-between;
align-items: center;
background: #1965b0;
}
.AHMenu * {
float: none !important;
}
.AHMenu a:hover {
text-decoration: none;
}
.AHMenu .AHlevel1Style {
cursor: pointer;
color: white;
}
.AHMenu .AHlevel2Style, .AHMenu .AHlevel3Style, .AHMenu .AHlevel4Style {
color: #1965b0;
}
.AHMenu .AHlevel4Style {
cursor: pointer;
}
.AHMenu .AHlevel1 {
order: 0;
margin-bottom: 0;
padding: 0;
width: inherit !important;
}
.AHMenu .AHlevel1 li {
display: inline-block;
position: static !important;
padding: 12px;
}
.AHMenu .AHlevel2 {
/*display: block !important;*/
background: white;
width: inherit !important;
padding: 0 40px;
border: 1px solid #1965b0;
border-top: none;
/*border-bottom-right-radius: 3px;
border-bottom-left-radius: 3px;*/
height: 250px;
}
.AHMenu .AHlevel2 li {
display: inline-block;
position: relative !important;
width: 200px;
padding: 12px 0;
padding-bottom: 0;
}
.AHMenu .AHlevel3 {
display: block !important;
padding: 0;
background: white;
left: 0 !important;
top: 70px !important;
border-bottom: 2px solid #1965b0;
}
.AHMenu .AHlevel3 li {
font-weight: 700;
font-family: calibri;
font-size: 19px;
display: inline-block;
position: initial;
width: auto;
margin: 6px 0;
padding: 0;
}
.AHMenu .AHlevel4 {
display: block !important;
padding: 0;
background: white;
left: 22px !important;
top: 38px !important;
}
.AHMenu .AHlevel4 li {
font-family: calibri;
font-size: 14px;
display: inline-block;
position: initial;
width: auto;
padding: 0;
margin: 0;
font-weight: 300;
white-space: nowrap;
}
.AHMenu .AHlevel4 li:before {
content: "►";
display: block;
float: left;
width: 1.2em;
color: #1965b0;
}
#AHMenu::after {
content: '';
flex-grow: 1;
order: 0;
}