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[dev-v5] Add ControlStyle parameter to FluentSelect #5145

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Denis Voituron (dvoituron) wants to merge 4 commits into
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[dev-v5] Add ControlStyle parameter to FluentSelect #5145

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01c50f1
[dev-v5][FluentSelect] Add ControlStyle parameter and apply styles to…
dvoituron Aug 14, 2026
82a052d
Merge branch 'dev-v5' into users/dvoituron/dev-v5/select-control-style
dvoituron Aug 14, 2026
7f1a0a7
Fix existing CSS Selector
dvoituron Aug 14, 2026
fc856ed
Merge branch 'users/dvoituron/dev-v5/select-control-style' of https:/…
dvoituron Aug 14, 2026
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2 changes: 1 addition & 1 deletion src/Core/Components/Base/IFluentControlStyle.cs
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Expand Up @@ -21,7 +21,7 @@ namespace Microsoft.FluentUI.AspNetCore.Components;
* {
* if (firstRender && !string.IsNullOrEmpty(ControlStyle))
* {
* await JSRuntime.InvokeVoidAsync("Microsoft.FluentUI.Blazor.Utilities.Attributes.applyShadowStyle", Element, ".control", ControlStyle);
* await JSRuntime.InvokeVoidAsync("Microsoft.FluentUI.Blazor.Utilities.Attributes.applyShadowStyle", Element, ":host .control", ControlStyle);
* }
* }
*
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3 changes: 2 additions & 1 deletion src/Core/Components/List/FluentSelect.razor
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Expand Up @@ -7,7 +7,8 @@
<CascadingValue Value="GetCurrentContext()" Name="ListContext" TValue="InternalListContext<TValue>" IsFixed="true">
<CascadingValue Value="(InternalListContext)GetCurrentContext()" Name="ListContextBase" TValue="InternalListContext" IsFixed="true">
<FluentField InputComponent="@this" ForId="@Id" Class="@ClassValue" Style="@StyleValue">
<fluent-dropdown id="@Id"
<fluent-dropdown @ref="@Element"
id="@Id"
appearance="@(Appearance.ToAttributeValue(isNull: ListAppearance.Outline, returnEmptyAsNull: true))"
placeholder="@Placeholder"
slot="@FluentSlot.FieldInput"
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15 changes: 14 additions & 1 deletion src/Core/Components/List/FluentSelect.razor.cs
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Expand Up @@ -11,7 +11,7 @@ namespace Microsoft.FluentUI.AspNetCore.Components;
/// A FluentSelect allows for selecting one or more options from a list of options.
/// </summary>
[CascadingTypeParameter(nameof(TValue))]
public partial class FluentSelect<TOption, TValue> : FluentListBase<TOption, TValue>
public partial class FluentSelect<TOption, TValue> : FluentListBase<TOption, TValue>, IFluentControlStyle, IFluentComponentElementBase
{
/// <summary />
public FluentSelect(LibraryConfiguration configuration) : base(configuration) { }
Expand Down Expand Up @@ -41,6 +41,14 @@ public FluentSelect(LibraryConfiguration configuration) : base(configuration) {
[Parameter]
public ListSize? Size { get; set; }

/// <inheritdoc cref="IFluentComponentElementBase.Element" />
[Parameter]
public ElementReference Element { get; set; }

/// <inheritdoc cref="IFluentControlStyle.ControlStyle" />
[Parameter]
public string? ControlStyle { get; set; }

/// <summary />
protected override async Task OnAfterRenderAsync(bool firstRender)
{
Expand All @@ -50,6 +58,11 @@ protected override async Task OnAfterRenderAsync(bool firstRender)
// This method don't change the SelectedItems and Value properties.
var defaultText = Value is TOption option ? base.GetOptionText(option) : "";
await JSRuntime.InvokeFluentVoidAsync("Microsoft.FluentUI.Blazor.Components.Select.Initialize", Id, defaultText);

if (!string.IsNullOrEmpty(ControlStyle))
{
await JSRuntime.InvokeFluentVoidAsync("Microsoft.FluentUI.Blazor.Utilities.Attributes.applyShadowStyle", Element, ":host .control", ControlStyle);
}
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}

await base.OnAfterRenderAsync(firstRender);
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2 changes: 1 addition & 1 deletion src/Core/Components/NumberInput/FluentNumberInput.razor.cs
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Expand Up @@ -188,7 +188,7 @@ protected override async Task OnAfterRenderAsync(bool firstRender)

if (!string.IsNullOrEmpty(ControlStyle))
{
await JSRuntime.InvokeVoidAsync("Microsoft.FluentUI.Blazor.Utilities.Attributes.applyShadowStyle", Element, ".control", ControlStyle);
await JSRuntime.InvokeVoidAsync("Microsoft.FluentUI.Blazor.Utilities.Attributes.applyShadowStyle", Element, ":host .control", ControlStyle);
}
}
}
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2 changes: 1 addition & 1 deletion src/Core/Components/TextArea/FluentTextArea.razor.cs
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Expand Up @@ -179,7 +179,7 @@ protected override async Task OnAfterRenderAsync(bool firstRender)

if (!string.IsNullOrEmpty(ControlStyle))
{
await JSRuntime.InvokeVoidAsync("Microsoft.FluentUI.Blazor.Utilities.Attributes.applyShadowStyle", Element, ".control", ControlStyle);
await JSRuntime.InvokeVoidAsync("Microsoft.FluentUI.Blazor.Utilities.Attributes.applyShadowStyle", Element, ":host .control", ControlStyle);
}
}
}
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2 changes: 1 addition & 1 deletion src/Core/Components/TextInput/FluentTextInput.razor.cs
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Expand Up @@ -239,7 +239,7 @@ protected override async Task OnAfterRenderAsync(bool firstRender)

if (!string.IsNullOrEmpty(ControlStyle))
{
await JSRuntime.InvokeVoidAsync("Microsoft.FluentUI.Blazor.Utilities.Attributes.applyShadowStyle", Element, ".control", ControlStyle);
await JSRuntime.InvokeVoidAsync("Microsoft.FluentUI.Blazor.Utilities.Attributes.applyShadowStyle", Element, ":host .control", ControlStyle);
}
}
}
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14 changes: 14 additions & 0 deletions tests/Core/Components/List/FluentSelectTests.razor
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Expand Up @@ -318,6 +318,20 @@
Assert.Equal(expected, attribute);
}

[Fact]
public void FluentSelect_ControlStyle_AppliesStyleToInternalControl()
{
// Arrange and Act
Render(@<FluentSelect ControlStyle="color: red;" Items="@Digits" TOption="string" TValue="string" />);

// Assert
var invocation = JSInterop.VerifyInvoke("Microsoft.FluentUI.Blazor.Utilities.Attributes.applyShadowStyle");
Assert.Equal(3, invocation.Arguments.Count);
Assert.IsType<ElementReference>(invocation.Arguments[0]);
Assert.Equal(":host .control", invocation.Arguments[1]);
Assert.Equal("color: red;", invocation.Arguments[2]);
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}

[Theory]
[InlineData("1", 1, null)]
[InlineData("abc", 0, "The 'Unknown Bound Field' field is not valid.")]
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2 changes: 1 addition & 1 deletion tests/Core/Components/Number/FluentNumberTests.razor
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Expand Up @@ -413,7 +413,7 @@
var invocation = JSInterop.VerifyInvoke("Microsoft.FluentUI.Blazor.Utilities.Attributes.applyShadowStyle");
Assert.Equal(3, invocation.Arguments.Count);
Assert.IsType<ElementReference>(invocation.Arguments[0]);
Assert.Equal(".control", invocation.Arguments[1]);
Assert.Equal(":host .control", invocation.Arguments[1]);
Assert.Equal("color: red;", invocation.Arguments[2]);
}

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2 changes: 1 addition & 1 deletion tests/Core/Components/TextArea/FluentTextAreaTests.razor
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Expand Up @@ -208,7 +208,7 @@
var invocation = JSInterop.VerifyInvoke("Microsoft.FluentUI.Blazor.Utilities.Attributes.applyShadowStyle");
Assert.Equal(3, invocation.Arguments.Count);
Assert.IsType<ElementReference>(invocation.Arguments[0]);
Assert.Equal(".control", invocation.Arguments[1]);
Assert.Equal(":host .control", invocation.Arguments[1]);
Assert.Equal("color: red;", invocation.Arguments[2]);
}
}
2 changes: 1 addition & 1 deletion tests/Core/Components/TextInput/FluentTextInputTests.razor
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Expand Up @@ -242,7 +242,7 @@
var invocation = JSInterop.VerifyInvoke("Microsoft.FluentUI.Blazor.Utilities.Attributes.applyShadowStyle");
Assert.Equal(3, invocation.Arguments.Count);
Assert.IsType<ElementReference>(invocation.Arguments[0]);
Assert.Equal(".control", invocation.Arguments[1]);
Assert.Equal(":host .control", invocation.Arguments[1]);
Assert.Equal("color: red;", invocation.Arguments[2]);
}

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