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2 changes: 1 addition & 1 deletion src/SimpleBlazorMultiselect.Demo/App.razor
Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
<CascadingValue Name="Standalone" Value="@true" IsFixed="@true">
<CascadingValue Name="Standalone" Value="@false" IsFixed="@true">
<Router AppAssembly="@typeof(App).Assembly">
<Found Context="routeData">
<RouteView RouteData="@routeData" DefaultLayout="@typeof(MainLayout)"/>
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4 changes: 0 additions & 4 deletions src/SimpleBlazorMultiselect.Demo/Layout/MainLayout.razor
Original file line number Diff line number Diff line change
Expand Up @@ -6,10 +6,6 @@
</div>

<main>
<div class="top-row px-4">
<a href="https://learn.microsoft.com/aspnet/core/" target="_blank">About</a>
</div>

<article class="content px-4">
@Body
</article>
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26 changes: 20 additions & 6 deletions src/SimpleBlazorMultiselect.Demo/Layout/NavMenu.razor
Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,13 @@

<div class="nav-scrollable" onclick="document.querySelector('.navbar-toggler').click()">
<nav class="flex-column">
<div class="nav-item px-3">
<button
onclick="document.querySelector('html').setAttribute('data-bs-theme', document.querySelector('html').getAttribute('data-bs-theme') === 'dark' ? 'light' : 'dark')"

Copilot AI Nov 7, 2025

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Inline JavaScript in the onclick attribute makes this code harder to maintain. Consider moving this logic to a method in the @code block and using @OnClick instead.

Copilot uses AI. Check for mistakes.
class="nav-link btn btn-link">
<span class="bi bi-circle-half-nav-menu" aria-hidden="true"></span> Toggle Theme
</button>
</div>
<div class="nav-item px-3">
<NavLink class="nav-link" href="" Match="NavLinkMatch.All">
<span class="bi bi-house-door-fill-nav-menu" aria-hidden="true"></span> Home
Expand All @@ -34,35 +41,35 @@
<span class="bi bi-plus-square-fill-nav-menu" aria-hidden="true"></span> SingleSelect
</NavLink>
</div>

<!-- CustomTemplate -->
<div class="nav-item px-3">
<NavLink class="nav-link" href="CustomTemplate" Match="NavLinkMatch.All">
<span class="bi bi-plus-square-fill-nav-menu" aria-hidden="true"></span> CustomTemplate
</NavLink>
</div>
</div>

<!-- BigListVirtualize -->
<div class="nav-item px-3">
<NavLink class="nav-link" href="BigListVirtualize" Match="NavLinkMatch.All">
<span class="bi bi-plus-square-fill-nav-menu" aria-hidden="true"></span> Big list with Virtualize
</NavLink>
</div>

<!-- BigListNoVirtualize -->
<div class="nav-item px-3">
<NavLink class="nav-link" href="BigListNoVirtualize" Match="NavLinkMatch.All">
<span class="bi bi-plus-square-fill-nav-menu" aria-hidden="true"></span> Big list without Virtualize
</NavLink>
</div>

<!-- CustomStyling -->
<div class="nav-item px-3">
<NavLink class="nav-link" href="CustomStyling" Match="NavLinkMatch.All">
<span class="bi bi-plus-square-fill-nav-menu" aria-hidden="true"></span> CustomStyling
</NavLink>
</div>

<!-- MultipleDropdowns -->
<div class="nav-item px-3">
<NavLink class="nav-link" href="MultipleDropdowns" Match="NavLinkMatch.All">
Expand All @@ -76,5 +83,12 @@
<span class="bi bi-plus-square-fill-nav-menu" aria-hidden="true"></span> ObjectBinding
</NavLink>
</div>

<!-- DisabledDropdown -->
<div class="nav-item px-3">
<NavLink class="nav-link" href="DisabledDropdown" Match="NavLinkMatch.All">
<span class="bi bi-plus-square-fill-nav-menu" aria-hidden="true"></span> DisabledDropdown
</NavLink>
</div>
</nav>
</div>
31 changes: 31 additions & 0 deletions src/SimpleBlazorMultiselect.Demo/Pages/DisabledDropdown.razor
Original file line number Diff line number Diff line change
@@ -0,0 +1,31 @@
@page "/DisabledDropdown"
<h3>DisabledDropdown</h3>

<div class="row">
<div class="col-4">
<SimpleMultiselect
Disabled="@_isDisabled"
Options="@Globals.EuropeanCapitals"
CanFilter="true"
@bind-SelectedOptions="_selectedItems"/>
</div>
<div class="col-4">
<button class="btn btn-primary" @onclick="() => _isDisabled = !_isDisabled">
@(_isDisabled ? "Enable" : "Disable")
</button>
<br/>
You have selected the following items:
<ul>
@foreach (var item in _selectedItems)
{
<li>@item</li>
}
</ul>
</div>
</div>

@code {
private bool _isDisabled;

private HashSet<string> _selectedItems = [];
}
100 changes: 100 additions & 0 deletions src/SimpleBlazorMultiselect.Tests/DisabledTests.cs
Original file line number Diff line number Diff line change
@@ -0,0 +1,100 @@
using Bunit;
using FluentAssertions;
using Xunit;

namespace SimpleBlazorMultiselect.Tests;

public class DisabledTests : BaseTest
{
[Fact]
public void Component_WhenDisabled_HasDisabledAttribute()
{
var component = RenderComponent<SimpleMultiselect<string>>(parameters => parameters
.Add(p => p.Options, TestOptions)
.Add(p => p.Disabled, true)
);

var button = component.Find("button");
button.HasAttribute("disabled").Should().BeTrue();
}

[Fact]
public void Component_WhenDisabled_DoesNotOpenOnClick()
{
var component = RenderComponent<SimpleMultiselect<string>>(parameters => parameters
.Add(p => p.Options, TestOptions)
.Add(p => p.Disabled, true)
);

var button = component.Find("button");
button.Click();

AssertClosed(component);
}

[Fact]
public void Component_WhenEnabled_OpensOnClick()
{
var component = RenderComponent<SimpleMultiselect<string>>(parameters => parameters
.Add(p => p.Options, TestOptions)
.Add(p => p.Disabled, false)
);

var button = component.Find("button");
button.Click();

AssertOpen(component, TestOptions.Count);
}

[Fact]
public void Component_WhenDisabledThenEnabled_OpensOnClick()
{
var component = RenderComponent<SimpleMultiselect<string>>(parameters => parameters
.Add(p => p.Options, TestOptions)
.Add(p => p.Disabled, true)
);

var button = component.Find("button");
button.Click();
AssertClosed(component);

component.SetParametersAndRender(parameters => parameters.Add(p => p.Disabled, false));

button.Click();
AssertOpen(component, TestOptions.Count);
}

[Fact]
public void Component_WhenEnabledThenDisabled_DoesNotOpenOnClick()
{
var component = RenderComponent<SimpleMultiselect<string>>(parameters => parameters
.Add(p => p.Options, TestOptions)
.Add(p => p.Disabled, false)
);

var button = component.Find("button");
button.Click();
AssertOpen(component, TestOptions.Count);

component.SetParametersAndRender(parameters => parameters.Add(p => p.Disabled, true));

button.Click();
AssertClosed(component);
}

[Fact]
public void Component_WhenDisabledWithMenuOpen_ClosesMenu()
{
var component = RenderComponent<SimpleMultiselect<string>>(parameters => parameters
.Add(p => p.Options, TestOptions)
);

var button = component.Find("button");
button.Click();
AssertOpen(component, TestOptions.Count);

component.SetParametersAndRender(parameters => parameters.Add(p => p.Disabled, true));

AssertClosed(component);
}
}
170 changes: 170 additions & 0 deletions src/SimpleBlazorMultiselect.Tests/EqualityTests.cs
Original file line number Diff line number Diff line change
@@ -0,0 +1,170 @@
using AngleSharp.Dom;
using AngleSharp.Html.Dom;
using Bunit;
using FluentAssertions;
using Microsoft.AspNetCore.Components;
using Xunit;

namespace SimpleBlazorMultiselect.Tests;

public class EqualityTests : BaseTest
{
[Fact]
public void Component_CanDeselect_WhenPrefilledValueItems()
{
var options = new List<TestValueItem>
{
new("1", "Apple"),
new("2", "Banana"),
new("3", "Cherry")
};
var selectedItems = new HashSet<TestValueItem>
{
new("1", "Apple")
};

var component = RenderComponent<SimpleMultiselect<TestValueItem>>(parameters => parameters
.Add(p => p.Options, options)
.Add(p => p.SelectedOptions, selectedItems)
.Add(p => p.StringSelector, item => item.Name)
.Add(p => p.DefaultText, "Select fruits")
.Add(p => p.SelectedOptionsChanged, EventCallback.Factory.Create<HashSet<TestValueItem>>(this, newSelection => { selectedItems = newSelection; })));

var button = component.Find("button");
button.TextContent.Should().Contain("Apple");
button.Click();

// Now only apple should be checked
var appleOption = component.FindAll(".dropdown-item")[0];
var appleCheckbox = appleOption.QuerySelector<IHtmlInputElement>("input[type='checkbox']");
appleCheckbox.Should().NotBeNull();
appleCheckbox.IsChecked.Should().BeTrue();

appleOption.Click();

// After clicking, apple should be deselected
selectedItems.Should().BeEmpty();
button = component.Find("button");
button.TextContent.Should().Be("Select fruits");
}

[Fact]
public void Component_CanDeselect_WhenPrefilledReferenceItems()
{
var options = new List<TestReferenceItem>
{
new("1", "Apple"),
new("2", "Banana"),
new("3", "Cherry")
};
var selectedItems = new HashSet<TestReferenceItem>
{
new("1", "Apple")
};

var component = RenderComponent<SimpleMultiselect<TestReferenceItem>>(parameters => parameters
.Add(p => p.Options, options)
.Add(p => p.SelectedOptions, selectedItems)
.Add(p => p.StringSelector, item => item.Name)
.Add(p => p.DefaultText, "Select fruits")
.Add(p => p.SelectedOptionsChanged, EventCallback.Factory.Create<HashSet<TestReferenceItem>>(this, newSelection => { selectedItems = newSelection; })));

var button = component.Find("button");
button.TextContent.Should().Contain("Apple");
button.Click();

// Now only apple should be checked
var appleOption = component.FindAll(".dropdown-item")[0];
var appleCheckbox = appleOption.QuerySelector<IHtmlInputElement>("input[type='checkbox']");
appleCheckbox.Should().NotBeNull();
appleCheckbox.IsChecked.Should().BeTrue();

appleOption.Click();

// After clicking, apple should be deselected
selectedItems.Should().BeEmpty();
button = component.Find("button");
button.TextContent.Should().Be("Select fruits");
}

[Fact]
public void Component_CanDeselectValueItem_WhenMatchByReference()
{
var options = new List<TestValueItem>
{
new("1", "Apple"),
new("2", "Banana"),
new("3", "Cherry")
};
var selectedItems = new HashSet<TestValueItem>
{
new("1", "Apple")
};

var component = RenderComponent<SimpleMultiselect<TestValueItem>>(parameters => parameters
.Add(p => p.Options, options)
.Add(p => p.SelectedOptions, selectedItems)
.Add(p => p.StringSelector, item => item.Name)
.Add(p => p.DefaultText, "Select fruits")
.Add(p => p.SelectedOptionsChanged, EventCallback.Factory.Create<HashSet<TestValueItem>>(this, newSelection => { selectedItems = newSelection; }))
.Add(p => p.MatchByReference, true)); // Should not matter for value types

var button = component.Find("button");
button.TextContent.Should().Contain("Apple");
button.Click();

// Now only apple should be checked
var appleOption = component.FindAll(".dropdown-item")[0];
var appleCheckbox = appleOption.QuerySelector<IHtmlInputElement>("input[type='checkbox']");
appleCheckbox.Should().NotBeNull();
appleCheckbox.IsChecked.Should().BeTrue();

appleOption.Click();

// After clicking, apple should be deselected
selectedItems.Should().BeEmpty();
button = component.Find("button");
button.TextContent.Should().Be("Select fruits");
}

[Fact]
public void Component_CannotDeselectIdenticalInstance_WhenMatchByReference()
{
var options = new List<TestReferenceItem>
{
new("1", "Apple"),
new("2", "Banana"),
new("3", "Cherry")
};
var selectedItems = new HashSet<TestReferenceItem>
{
new("1", "Apple")
};

var component = RenderComponent<SimpleMultiselect<TestReferenceItem>>(parameters => parameters
.Add(p => p.Options, options)
.Add(p => p.SelectedOptions, selectedItems)
.Add(p => p.StringSelector, item => item.Name)
.Add(p => p.DefaultText, "Select fruits")
.Add(p => p.SelectedOptionsChanged, EventCallback.Factory.Create<HashSet<TestReferenceItem>>(this, newSelection => { selectedItems = newSelection; }))
.Add(p => p.MatchByReference, true)); // This will break the deselection

var button = component.Find("button");
button.TextContent.Should().Contain("Apple");
button.Click();

// Apple should not be checked because the instance is different
// So clicking it will add another apple instead of removing the existing one
var appleOption = component.FindAll(".dropdown-item")[0];
var appleCheckbox = appleOption.QuerySelector<IHtmlInputElement>("input[type='checkbox']");
appleCheckbox.Should().NotBeNull();
appleCheckbox.IsChecked.Should().BeFalse();

appleOption.Click();

// After clicking, we should have two apples
selectedItems.Should().HaveCount(2);
button = component.Find("button");
button.TextContent.Should().Be("Apple, Apple");
}
}
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