Actions

Submits the form it's in (or Form), like type="submit". Without Submit or Reset, a button does nothing by itself.

Posted with the form as Name=Value when this button submits it, so one handler can tell which of several submit buttons was pressed. Not action, method or target: a control with one of those names hides the form's own property, and Blazor's enhanced form handling then posts to the wrong address.

The value posted with Name.

Submits to this URL instead of the form's own action (native formaction).

The id of a form elsewhere on the page that this button submits (native form).

Makes it a toggle button, such as Bold in an editor: true shows it pressed, false not, and screen readers hear which (aria-pressed). With @bind-Pressed a click turns it on and off on interactive pages; on static pages the server decides, as with a submit button's Name and Value. Null (the default) is an ordinary button. Not for links.

Runs on click on interactive pages (a link still navigates). Has no effect on static pages.

Submits the form it's in (or Form), when it's a button (not a link), like type="submit".

Posted with the form as Name=Value when this button submits it, so one handler can tell which button was pressed, such as which row's Delete. Not action, method or target: a control with one of those names hides the form's own property, and Blazor's enhanced form handling then posts to the wrong address.

The value posted with Name.

Submits to this URL instead of the form's own action (native formaction).

The id of a form elsewhere on the page that this button submits (native form).

Makes it a toggle button, such as Bold in an editor: true shows it pressed, false not, and screen readers hear which (aria-pressed). With @bind-Pressed a click turns it on and off on interactive pages; on static pages the server decides, as with a submit button's Name and Value. Null (the default) is an ordinary button. Not for links.

Runs on click on interactive pages (a link still navigates).

Where it sits. Defaults to ToolbarPosition.Start.

Which items stay longest when there's no room: higher stays longer. Defaults to 0. Items with the same priority move into the menu from the middle of the toolbar outward.

When it moves into the "…" menu: ToolbarOverflow.Never for the main action, ToolbarOverflow.Always for what only the menu needs. Defaults to ToolbarOverflow.Auto.

The main button's text, or with IconOnly its name for screen readers and its tooltip.

An icon before the main button's text.

Shows only StartIcon on the main button, which it needs. Label still names it.

Makes the main button a link to this URL (an a). A link can't take Submit, Name, Value, FormAction or Form.

For a link: opens in a new tab with rel="noopener noreferrer" and shows an external-link icon.

Makes the main button submit the form it's in (or Form), like type="submit".

Posted with the form as Name=Value when the main button submits it, so one handler can tell it from the menu's items. Not action, method or target: a control with one of those names hides the form's own property.

The value posted with Name.

Submits to this URL instead of the form's own action (native formaction).

The id of a form elsewhere on the page that the main button submits (native form).

The name of the arrow that opens the menu, for screen readers and its tooltip, and of the submenu in a Toolbar's "…" menu. Defaults to "{Label}: more options" (SplitButtonMenu).

The color of both parts. Defaults to a ButtonGroup's or Toolbar's around it, else Primary.

The weight of both parts. Defaults to a ButtonGroup's or Toolbar's around it, else ButtonVariant.Solid.

The height of both parts. Defaults to a ButtonGroup's or Toolbar's around it, else ControlSize.Md.

Disables both parts.

Shows a spinner on the main button and blocks both parts, which keep focus.

Read to screen readers while Loading. Defaults to "Loading".

Read to screen readers after an external link's text. Defaults to "(opens in a new tab)".

Stretches to the full width of its container; the main button takes the extra width.

Disables only the main button, such as when no default is available but the items still are.

Disables only the arrow, such as when there's nothing else to choose.

Where the menu opens, against the whole button. Defaults to Placement.BottomStart.

The width of the menu panel, as on Menu. Defaults to the content's width, at least 10rem, up to 24rem.

The MenuItems, MenuGroups and MenuDividers.

Runs when the main button is clicked on interactive pages (a link still navigates). Has no effect on static pages.