onclick | 易学教程

Javascript .onclick = functionName passing parameters

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问题 I have this code: var bt = document.getElementById("bt"); bt.onclick = randomFunc; Now, how can I pass some parameters to randomFunc ? 回答1: Create a new function which calls randomFunc and specify the parameters there. bt.onclick = function () { randomFunc(foo, bar, baz); }; Or, if you can limit support to browsers which support bind , use that method to create your function: bt.onclick = randomFunc.bind(this, foo, bar, baz); 来源： https://stackoverflow.com/questions/19546480/javascript-onclick

Changing the visibility of a textview in a listview

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问题 I have a listview which is build up of two textviews coming from a separate layout file. I use a BaseAdapter to build the list from a JSON file. I would like the first textview (Caption) to be clickable, if clicked that it shows the second textview (Text), and if clicked again that it hides it. When I use an onClick ( android:onClick="ClText" ) I get an error. I think I should use something of an onClickListener , but since I'm new to Android I'm not quite sure how to use it. Can someone help

How to avoid setting inline onClickListner in getView()

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问题 I was asked to refactor the getView() code presented below. I have got ListView with custom Adapter. Every row contains clickable buttons and texts. At the moment onClickListeners are set in the body of getView() , this is quite insane idea, because this method is called very frequently. Inside of every onClick function I need access to the private data to call new activity with bundle. How can i move onClick definition outside getView() routine? When onClick will be called I need info about

ASP.NET Textbox TextChanged and Button OnClick event interaction?

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问题 I've got an ASP.NET application that I'm accessing through Google Chrome. On a particular page I've got an asp:TextBox with a OnTextChanged event that recalculates a few other fields on the page. I've also got an asp:LinkButton with an OnClick event that saves the changes to the database. I was facing a problem where the user left the TextBox by clicking on the save button. The button was firing before the TextChanged event so the changes were not being captured in the save. I fixed this by

javascript常用函数

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Javascript常用函数及基本教材集合每一项都是js使用中的小技巧，基础但十分的实用！ 1.document.write(""); 输出语句 2.JS中的注释为// 3.传统的HTML文档顺序是: document->html->(head,body) 4.一个浏览器窗口中的DOM顺序是: window->(navigator,screen,history,location,document) 5.得到表单中元素的名称和值: document.getElementById("表单中元素的ID号").name(或value) 6.一个小写转大写的JS: document.getElementById("output").value=document.getElementById("input").value.toUpperCase(); 7.JS中的值类型: String,Number,Boolean,Null,Object,Function 8.JS中的字符型转换成数值型: parseInt(),parseFloat() 9.JS中的数字转换成字符型: ("" 变量) 10.JS中的取字符串长度是: (length) 11.JS中的字符与字符相连接使用号. 12.JS中的比较操作符有: ==等于,!=不等于,>,>=,<.<= 13.JS中声明变量使用: var来进行声明

Javascript Onclick with Table Rows

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问题 I am having problems with my JScript code. I am trying to loop through all of the rows in a table and add an onclick event. I can get the onclick event to add but have a couple of problems. The first problem is that all rows end up getting set up with the wrong parameter for the onclick event. The second problem is that it only works in IE. Here is the code excerpt... shanesObj.addTableEvents = function(){ table = document.getElementById("trackerTable"); for(i=1; i<table.getElementsByTagName(

jQuery onclick addclass/removeclass and add fade

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问题 The past three day I have been searching for a solution to my problem. I have seen a lot of people with the same question as I have, but not one solution fixes my problem. So I am again where I started and I am asking for the help of you friendly people! I now have the following script running that works perfect for me: $(".show_commentsandnotes_container").click(function () { $('.commentsandnotes_bg').addClass('show'); $('.commentsandnotes_container').addClass('show'); }); $("

TEdit onclick select all?

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问题 How to select all text of a TEdit1 whenever user click on it or click to select some text of it 回答1: How to select all text of a TEdit1 whenever user click on it Select Edit1 in the VCL editor and double-click on the OnClick event: procedure TForm13.Edit1Click(Sender: TObject); begin Edit1.SelectAll; end; You can also link this event to another control like a button. Select the button, choose and click on the V arrow to select an event you want to link. Now both Edit1.OnClick and Button1

jQuery Save Image Onclick

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问题 On my website I have a jQuery script that, if the download button is clicked it will open the image that you want in new window. My question is, how can I make this script when you click the button the image will save automatically and not open in a new window. My code : <script type="text/javascript"> $(document).ready(function (){ $('#download-btn').click(function(){ var size = $('#size').val(); window.open(size); }); }) </script> 回答1: First I try jqueryfiledonwloader but not work on image

Why ul gets triggered when I click on li?

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问题 I have this html: <ul class='loc-list'> <li id="where_7" class="cont-list">North America <ul> <li id="contry_114" class="contry-list">canada</li> <li id="contry_115" class="contry-list">mexico</li> <li id="contry_117" class="contry-list">united states</li> </ul> </li> </ul> Now I have written two jquery functions onclick of list as: 1 st : $(".cont-list").on("click", function(event){ alert("clicked on continent's list"); // working fine }; 2 nd : $(".contry-list").on("click", function(event){