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Window.showModalDialog() - Web APIs 编辑

Obsolete

This feature is obsolete. Although it may still work in some browsers, its use is discouraged since it could be removed at any time. Try to avoid using it.

This feature has been removed. Please fix your Web sites and applications.

This method was removed in Chrome 43 and Firefox 56.

The Window.showModalDialog() created and displayed a modal dialog box containing a specified HTML document.

Syntax

returnVal = window.showModalDialog(uri[, arguments][, options]);

returnVal holds the returnValue property as set by the document specified by uri.
uri is the URL of the document to display in the dialog.
arguments is an optional variant containing values passed to the dialog; these are made available in the window object's window.dialogArguments property.
options is an optional string specifying window ornamentation for the dialog, using one or more semicolon delimited values:

Syntax	Description
`center: {on \| off \| yes \| no \| 1 \| 0 }`	If `on`, `yes`, or `1`, the dialog window is centered on the desktop; otherwise it's hidden. Default is `yes`.
`dialogheight: height`	The height of the dialog box in pixels.
`dialogleft: left`	Distance of the dialog box from the left edge of the desktop.
`dialogwidth: width`	The width of the dialog box in pixels.
`dialogtop: top`	Distance of the dialog box from the top edge of the desktop.
`resizable: {on \| off \| yes \| no \| 1 \| 0 }`	If this argument's value is `on`, `yes`, or 1, the dialog window can be resized by the user; otherwise its size is fixed. The default value is `no`.
`scroll: {on \| off \| yes \| no \| 1 \| 0 }`	If `on`, `yes`, or 1, the dialog window has scroll bars; otherwise its size is fixed. Default is `no`.