Table of Contents

Class MudExpansionPanel

Namespace
MudBlazor
Assembly
MudBlazor.dll

A component which can be expanded to show more content or collapsed to show only its header.

public class MudExpansionPanel : MudComponentBase, IComponent, IHandleEvent, IHandleAfterRender, IMudStateHasChanged, IDisposable
Inheritance
MudExpansionPanel
Implements
Inherited Members
Extension Methods

Remarks

This component is always inside a MudExpansionPanels component.

Constructors

MudExpansionPanel()

Creates a new instance.

public MudExpansionPanel()

Properties

ChildContent

The content within this panel.

[Parameter]
[Category("Behavior")]
public RenderFragment? ChildContent { get; set; }

Property Value

RenderFragment

Classname 

protected string Classname { get; }

Property Value

string

Dense

Removes vertical padding from the panel.

[Parameter]
[Category("Appearance")]
public bool Dense { get; set; }

Property Value

bool

Remarks

Defaults to false.

Disabled

Disables user interaction and prevents ToggleExpansionAsync().

[Parameter]
[Category("Behavior")]
public bool Disabled { get; set; }

Property Value

bool

Remarks

Defaults to false.

Expanded

Displays the panel content.

[Parameter]
[Category("Behavior")]
public bool Expanded { get; set; }

Property Value

bool

Remarks

Defaults to false.

ExpandedChanged

Occurs when Expanded has changed.

[Parameter]
public EventCallback<bool> ExpandedChanged { get; set; }

Property Value

EventCallback<bool>

Gutters

Adds left and right padding.

[Parameter]
[Category("Appearance")]
public bool Gutters { get; set; }

Property Value

bool

Remarks

Defaults to true.

HeaderClass

User class names, separated by space.

[Parameter]
[Category("Appearance")]
public string? HeaderClass { get; set; }

Property Value

string

HeaderClassname 

protected string HeaderClassname { get; }

Property Value

string

HideIcon

Hides the expand icon.

[Parameter]
[Category("Appearance")]
public bool HideIcon { get; set; }

Property Value

bool

Remarks

Defaults to false.

Icon

The icon for expanding this panel.

[Parameter]
[Category("Appearance")]
public string Icon { get; set; }

Property Value

string

Remarks

Defaults to ExpandMore.

MaxHeight

The maximum allowed height, in pixels.

[Parameter]
[Category("Appearance")]
public int? MaxHeight { get; set; }

Property Value

int?

Remarks

Defaults to null. When null, the CSS default is used for maximum height.

NextPanelExpanded

Indicates whether the next panel is currently expanded.

public bool NextPanelExpanded { get; set; }

Property Value

bool

PanelContentClassname 

protected string PanelContentClassname { get; }

Property Value

string

Text

The text displayed in this panel, if TitleContent is not set.

[Parameter]
[Category("Behavior")]
public string? Text { get; set; }

Property Value

string

Remarks

Defaults to null.

TitleContent

The content within the title area.

[Parameter]
[Category("Behavior")]
public RenderFragment? TitleContent { get; set; }

Property Value

RenderFragment

Remarks

Defaults to null. When set, overrides the Text property.

Methods

BuildRenderTree(RenderTreeBuilder) 

protected override void BuildRenderTree(RenderTreeBuilder __builder)

Parameters

__builder RenderTreeBuilder

CollapseAsync()

Hides the content in this panel.

public Task CollapseAsync()

Returns

Task

Dispose()

Releases resources used by this panel.

public void Dispose()

Dispose(bool) 

protected virtual void Dispose(bool disposing)

Parameters

disposing bool

ExpandAsync()

Shows the content in this panel.

public Task ExpandAsync()

Returns

Task

OnInitializedAsync() 

protected override Task OnInitializedAsync()

Returns

Task

ToggleExpansionAsync()

Shows or hides the content in this panel.

public Task ToggleExpansionAsync()

Returns

Task

Remarks

If Disabled is true, this method has no affect.

See Also

MudExpansionPanels
MudCollapse