drop down menu swift 3

number of days This. selDay. appendChild (op ); } } // Method for handling the onchange event of the year and month. It obtains the event source object (selYear or selMonth) // Call the InitDaySelect method provided by its Group Object (for example, DateSelector instance, see constructor) to reinitialize the number of days // Parameter e is the event object DateSelector. Onchange = function (e ){ Var selector = invalid argument Doc ument. all! = Null? E. srcElement: e.tar get; Selector. Group.

For mobile phones and tablet applications, typing is a very inconvenient way to operate, and a better way to do this is to list a set of options for the user to choose from, thus avoiding the hassle of typing. Use the Spinner drop-down menu component to complete the following steps:1. Create a list of options, with many project names in the options list, which are represented by arrays;2. Set the option lis

; This adds items to the action bar if it is present.getmenuinflater (). Inflate (R.menu.menu, menu); return true; } @Override Public Booleanonoptionsitemselected (MenuItem item) {//Add Entry Click event intID =Item.getitemid (); Switch(ID) { CaseR.id.item1:toast.maketext ( This, "Entry 1 was clicked", 0). Show (); Break; CaseR.id.item2:toast.maketext ( This, "Entry 2 was clicked", 0). Show (); Break; CaseR.id.item3:toast.maketext ( This, "

This article mainly introduces the simple implementation code of jquery's unlimited drop-down menu. If you need it, you can refer to it and hope to help you. In this example, we use json data, combined ul and li to achieve : 1. Prepare json data: The Code is as follows: Var menuData = [{Id: 0, pid:-1, name: "order product", url: "", children :[{Id: 1, pid: 0, name: "computer accessories", url: "http://

The HTML Select drop-down menu has its own manually added menu, such as Value 1 Value 2 Value 3 Now I query the results from the database is 2, how to make the page display, the drop-down menu automatically locked in the "V

Supports multiple browsers for better experience:Http://keleyi.com/keleyi/phtml/jqmenu/4.htmMulti-level menus support unlimited levels theoretically. The file structure is very simple. The following is the complete code: Jquery implement multi-level drop-down menu-ke leyi navigation menu level 2 Classification 1 2 3 n

duplicate data), enter the following code in the pop-up code window: Option Explicit Private Sub Worksheet_selectionchange (ByVal Target as Range) If target.column = 3 Then application.sendkeys "%{down}" If target.column = 4 Then application.sendkeys "%{down}" End Sub When you have finished entering the code, close the Visual Basic Editor window, and the code we enter will be saved automatically. Tip: The meaning of the code is that when we se

Note the point:1. Setting the width and height of the A tag is not useful, and can be set in two ways(1). Display:block;(2). Float:left;　　　　2. Set the drop-down menu, and most importantly(1). Use positioning Position:absolute; define the UL tag under the Li tag, hide the 2-level column, Display:none;(2). The floating effect of the Li list is canceled, Float:none;(3