How to make a responsive side nav like Gmail with Bootstrap 5?

Question

Hi,How can I make my side menu in a Blazor Server application like Gmail's left menu, where only icons are displayed at first, and expanding the menu displays names, without narrowing the main body section? I have included my current menu and CSS files.

Here is my current menu

Left Nav Menu

Here is the NavMenu.razor:


    
    
        
            
            @*Collapsible*@
        
        
            
                
                
                    
                        @* 
                            Dashboard
                         *@
                        
                            Dashboard
                        
                        
                    
                
            
            
                
                
                    
                        @* 
                            Order List
                         *@
                        
                            Order List
                        
                        @* 
                            File Upload/Download
                         *@
                        
                            File Upload/Download
                        
                       @*  
                            Report
                         *@
                        
                            Report
                        
                    
                
            
            
                
                
                    
                        
                            Vendor Management
                        
                        
                    
                
            
            
                
                
                    
                        
                            Customer Management
                        
                    
                
            
            
                
            
                
                
                    
                        
                            User Management
                        
                        
                                Warehouse Management

Here is the MainLayout.razor:

@inherits LayoutComponentBase
Vorlance


    
        
    
    
        
            
                
                
                    
                
                
             
            @*Register
            Log in*@
            
         
        
        
            @Body
            
            
        
    

@code {
    private bool collapseNavMenu = true;
    private string? NavMenuCssClass => collapseNavMenu ? "collapse" : null;
    private void ToggleNavMenu()
    {
        collapseNavMenu = !collapseNavMenu;
    }
}

Here is the sidebar.css:

body {
  min-height: 100vh;
  min-height: -webkit-fill-available;
}
html {
  height: -webkit-fill-available;
}
/*main {
  display: flex;
  flex-wrap: nowrap;
  height: 100vh;
  height: -webkit-fill-available;
  max-height: 100vh;
  overflow-x: auto;
  overflow-y: hidden;
}*/
.sidebarmain {
    display: flex;
    flex-wrap: nowrap;
    height: 100vh;
    height: -webkit-fill-available;
    max-height: 100vh;
    overflow-x: hidden;
    overflow-y: hidden;
    background-color: #ced0da !important;
}
.b-example-divider {
  flex-shrink: 0;
  width: 1.5rem;
  height: 100vh;
  background-color: rgba(0, 0, 0, .1);
  border: solid rgba(0, 0, 0, .15);
  border-width: 1px 0;
  box-shadow: inset 0 .5em 1.5em rgba(0, 0, 0, .1), inset 0 .125em .5em rgba(0, 0, 0, .15);
}
.bi {
  vertical-align: -.125em;
  pointer-events: none;
  fill: currentColor;
}
.dropdown-toggle { outline: 0; }
.nav-flush .nav-link {
  border-radius: 0;
}
.btn-toggle {
  display: inline-flex;
  align-items: center;
  padding: .25rem .5rem;
  font-weight: 600;
  color: rgba(0, 0, 0, .65);
  background-color: transparent;
  border: 0;
}
.btn-toggle:hover,
.btn-toggle:focus {
  color: rgba(0, 0, 0, .85);
  background-color: #679fd2;
}
#administrator:hover, #administrator:focus {
    color: rgba(0, 0, 0, .85);
    background-color: #ff0000;
}
.btn-toggle::before {
  width: 1.25em;
  line-height: 0;
  content: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='rgba%280,0,0,.5%29' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M5 14l6-6-6-6'/%3e%3c/svg%3e");
  transition: transform .35s ease;
  transform-origin: .5em 50%;
}
.btn-toggle[aria-expanded="true"] {
  color: rgba(0, 0, 0, .85);
}
.btn-toggle[aria-expanded="true"]::before {
  transform: rotate(90deg);
}
.btn-toggle-nav a {
  display: inline-flex;
  padding: .1875rem .5rem;
  margin-top: .125rem;
  margin-left: 1.25rem;
  text-decoration: none;
}
.btn-toggle-nav a:hover,
.btn-toggle-nav a:focus {
  background-color: #98dbe8;
}
.scrollarea {
  overflow-y: auto;
}
.fw-semibold { font-weight: 600; }
.lh-tight { line-height: 1.25; }
#admin {
    border-top: 0.1rem solid white !important;
}

Here is the Gmail left menu:

Gmail left Menu

Answer

Hi @Cenk,

I found you are using Radzen, so I create a brand new sample, here is my test code. Please check the test result first.

User's image

@inherits LayoutComponentBase
@using Radzen
@using Radzen.Blazor


    
        
            
            
        
    
    
        
            
            
            
                
                
            
        
    
    
         
            @Body
        
    
    
        Footer
    

@code {
    bool sidebarExpanded = false;
    void ExpandSidebar()
    {
        sidebarExpanded = true;
        StateHasChanged();
    }
    void CollapseSidebar()
    {
        sidebarExpanded = false;
        StateHasChanged();
    }
}

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Jason

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How to make a responsive side nav like Gmail with Bootstrap 5?

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