Window. showdialog full manual to solve the problems of modal windows, passing values and returning values

Source: Internet
Author: User

Basic Introduction:
Showmodaldialog () (ie 4 + supported)
Showmodelessdialog () (ie 5 + supported)
The window. showmodaldialog () method is used to create a modal dialog box that displays HTML content.
The window. showmodelessdialog () method is used to create a non-modal dialog box that displays HTML content.

Usage:
Vreturnvalue = Window. showmodaldialog (Surl [, varguments] [, sfeatures])
Vreturnvalue = Window. showmodelessdialog (Surl [, varguments] [, sfeatures])

Parameter description:
Surl -- required parameter; Type: String. Specifies the URL of the document to be displayed in the dialog box.
Varguments -- optional parameter; Type: variant. Used to pass parameters to the dialog box. The passed parameter types are not limited, including arrays. The dialog box uses window. dialogarguments to obtain the passed parameters.
Sfeatures -- optional parameter; Type: String. Used to describe the appearance and other information of the dialog box. You can use one or more of the following, separated by semicolons.
1. dialogheight: the dialog box height. The default unit of dialogheight and dialogwidth in ie4 is em, while that in ie5 is PX. For convenience, when defining the modal mode dialog box, unit with PX.
2. dialogwidth: Dialog Box width.
3. dialogleft: the distance from the left of the screen.
4. dialogtop: the distance from the screen.
5. Center: {Yes | no | 1 | 0}: whether the window is centered. The default value is yes, but the height and width can still be specified.
6. Help: {Yes | no | 1 | 0}: whether to display the Help button. The default value is yes.
7. resizable: {Yes | no | 1 | 0} [ie5 +]: whether the size can be changed. No by default.
8. Status: {Yes | no | 1 | 0} [ie5 +]: whether to display the status bar. The default value is Yes [modeless] or no [modal].
9. Scroll: {Yes | no | 1 | 0 | on | off}: Specifies whether the scroll bar is displayed in the dialog box. The default value is yes.
The following attributes are used in HTA and are not used in general web pages.
10. dialoghide: {Yes | no | 1 | 0 | on | off}: whether the dialog box is hidden when printing or previewing. The default value is no.
11. Edge: {sunken | raised}: Specify the border style of the dialog box. The default value is raised.
12. unadorned: {Yes | no | 1 | 0 | on | off}: No by default.

Parameter transfer:
1. varguments is used to pass Parameters in the dialog box. The type is not limited. For string types, the maximum value is 4096 characters. Objects can also be passed, for example:

 

Code
< Script >
VaR OBJ =   New Object ();
OBJ. Name = " 51js " ;
Window. showmodaldialog ( " Modal.htm " , OBJ, " Dialogwidth = 200px; dialogheight = 100px " );
< / SCRIPT>
Modal.htm
< Script >
VaR OBJ = Window. dialogarguments
Alert ( " The parameters you pass are: "   + OBJ. Name)
< / SCRIPT>

2. You can use window. returnvalue to return information to the window that opens the dialog box. It can also be an object. For example:

 

Code
< Script >
Str = Window. showmodaldialog ( " Modal.htm " ,, " Dialogwidth = 200px; dialogheight = 100px " );
Alert (STR );
< / SCRIPT>
Modal.htm
< Script >
Window. returnvalue = " / " ;
< / SCRIPT>

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