Utilizing ASP.NET DropDownList within Bootstrap's navigation bar

I am working on an ASP.NET web page with a Bootstrap UI. The issue I'm facing is trying to make an ASP.NET DropDownList in the navbar appear like a Bootstrap Dropdown. Currently, my navbar looks like this:

https://i.sstatic.net/AYenE.png

However, I want it to have more of this appearance:

https://i.sstatic.net/qREzK.png

Below is the HTML code for the navbar:

<div class="navbar-header">
    <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse">
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
    </button>
    <a class="navbar-brand" runat="server" href="~/">Application name</a>
</div>
<div class="navbar-collapse collapse">
    <ul class="nav navbar-nav">
        <li><a runat="server" href="~/">Home</a></li>
        <li><a runat="server" href="~/About">About</a></li>
        <li><a runat="server" href="~/Contact">Contact</a></li>
    </ul>

    <ul class="nav navbar-nav navbar-right">
        <li>
            <asp:DropDownList runat="server" ID="ddlLanguage" AutoPostBack="true" CssClass="k-dropdown">
                <asp:ListItem Text="English" Value="en-us" />
                <asp:ListItem Text="Francais" Value="fr" />
            </asp:DropDownList>
        </li>
        <asp:LoginView runat="server" ViewStateMode="Disabled">
            <AnonymousTemplate>
                <li><a runat="server" href="~/Account/Login">Log in</a></li>
            </AnonymousTemplate>
            <LoggedInTemplate>
                <li><a runat="server" href="~/admin">Admin</a></li>
                <li><a runat="server" href="~/Account/Manage" title="Manage your account">Hello, <%: Logic.HelperFunctions.GetUser.FirstName %>!</a></li>
                <li>
                    <asp:LoginStatus runat="server" LogoutAction="Redirect" LogoutText="Log off" LogoutPageUrl="~/" OnLoggingOut="Unnamed_LoggingOut" />
                </li>
            </LoggedInTemplate>
        </asp:LoginView>
    </ul>
</div>

I need help adjusting the CSS to show the language DropDownList aligned to the right and centered vertically. The server control's CssClass attribute doesn't seem to be effective in achieving this. It's crucial for the DropDownList to be a server control as the site's language changes based on the AutoPostback event triggered by selecting a language option.

Answer №1

It appears that there may be some missing elements in the code you provided:

<ul class="nav navbar-nav navbar-right">
    <li class="dropdown">
    <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Dropdown <span class="caret"></span></a>
        <ul class="dropdown-menu">
            <li>
                <asp:DropDownList runat="server" ID="ddlLanguage" AutoPostBack="true" CssClass="k-dropdown">
                    <asp:ListItem Text="English" Value="en-us" />
                    <asp:ListItem Text="Francais" Value="fr" />
                </asp:DropDownList>
            </li>
            <asp:LoginView runat="server" ViewStateMode="Disabled">
                <AnonymousTemplate>
                    <li><a runat="server" href="~/Account/Login">Log in</a></li>
                </AnonymousTemplate>
                <LoggedInTemplate>
                    <li><a runat="server" href="~/admin">Admin</a></li>
                    <li><a runat="server" href="~/Account/Manage" title="Manage your account">Hello, <%: Logic.HelperFunctions.GetUser.FirstName %>!</a></li>
                    <li>
                        <asp:LoginStatus runat="server" LogoutAction="Redirect" LogoutText="Log off" LogoutPageUrl="~/" OnLoggingOut="Unnamed_LoggingOut" />
                    </li>
                </LoggedInTemplate>
            </asp:LoginView>
        </ul>
    </li>
</ul>

Please check if this resolves the issue for you.

Answer №2

After some investigation, I discovered the root cause of the issue. The problem lies in the discrepancy between how the ASP.NET control renders the DropDown options as <select> elements while Bootstrap expects <li> elements for its DropDown list. To overcome this, I took matters into my own hands and manually rendered my options as <li> elements. Additionally, I utilized JavaScript to handle the postback functionality. Check out my solution below.

<ul class="nav navbar-nav navbar-right">
<li class="k-dropdown">
    <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false><asp:Literal runat="server" Text="<%$Resources:Resources, Language%>" /><span class="caret"></span></a>
    <ul class="dropdown-menu">
        <li><a href="#" onclick="javascript:__doPostBack('en-us','')">English</a></li>
        <li><a href="#" onclick="javascript:__doPostBack('fr','')">français</a></li>
        <li><a href="#" onclick="javascript:__doPostBack('es','')">Español</a></li>
    </ul>
</li>
</ul>

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