onchange

问题 Usually I manage to solve a problem by reading posts here, but this time I can't seem to find the specific answer to my problem. I've been trying SignalR for pushing database changes to each client connected using SqlDependency - this didn't take me long to accomplish. The problem is that each tutorial is giving the exact same examples on how to push notifications to the users/clients, but I can't seem to get it to work. My code looks like this: Startup I initialize the following line when my

问题 As we all know 'onchange' event will fire ONLY when the input will loose its focus. But the web apps often requires to do something immediately if the input changes its value and without difference how those changes happens: by users keyboard, mouse or other script... Of course I can declare a function which will fire 100 times a second and check the value of needed elements and do something if value changed. But it looks weird: first it will take more power from users browser, second 1/100

问题 As we all know 'onchange' event will fire ONLY when the input will loose its focus. But the web apps often requires to do something immediately if the input changes its value and without difference how those changes happens: by users keyboard, mouse or other script... Of course I can declare a function which will fire 100 times a second and check the value of needed elements and do something if value changed. But it looks weird: first it will take more power from users browser, second 1/100

问题 As we all know 'onchange' event will fire ONLY when the input will loose its focus. But the web apps often requires to do something immediately if the input changes its value and without difference how those changes happens: by users keyboard, mouse or other script... Of course I can declare a function which will fire 100 times a second and check the value of needed elements and do something if value changed. But it looks weird: first it will take more power from users browser, second 1/100

问题 I figured out how to clone my form rows and append an incriminting number to the end of the ID's for each form field. So I thought with that appended incriminenting number at the end of the ID it would then be easy to use on change event to copy the value of one id to another, but this is not working for the cloned rows! I am using this to create new form rows: $('#btnRemove').attr('disabled','disabled'); $('#btnAdd').click(function() { var num = $('.clonedInput').length; var newNum = new

问题 this is closely related to this post: Is there an onSelect event or equivalent for HTML <select>? ...but specifically for the Dojo ComboBox..(I am using Dojo w/ ArcGIS JSAPI). I have three combo boxes, which populate the successors using queries triggered by the selections from the dropdown list. My problem is that if the second combobox selection remains the same, the query is not triggered. I have tried using onblur and several other events instead of onchange, and tried to reset the value

问题 This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, visit the help center. Closed 6 years ago . I keep getting ERROR: Please browse for a file before clicking the upload button. when selecting an image file to upload. Im trying to acheive uploading

问题 I'm trying to build a search box were students can search for course reserves based on their course code or faculty members names. What is missing is the part where you can change the form action url based on the checkbox you mark. I took the javascript code from the previous search box where it was used on a dropdown selection. I knew it wouldn't work on input but that's where my javascript understanding ends. Btw, I have a javascript running which allows only one checkbox to be selected. My

问题 How to code in VBA for fireevent "onchange" in selected term in Javascript. It doesn't work as coding .querySelector(".zcq0.djhtm?b=Q&a= & var & ").FireEvent "onchange" . Can someone help it, thanks in advance? Public Sub GetTWYIn() Dim ie As Object, URL As String, var As Object, ele As Object, td As Date Const max_wait_sec As Long = 10 Set var = ThisWorkbook.Worksheets("Sheet3").Cells(1, 1) URL = "http://pscnetinvest.moneydj.com.tw/z/zc/zcq/zcqa/zcqa_" & var & ".djhtm" Set ie = CreateObject(

问题 This Change function stops working when I add either of the plugins/widgets I use for styling Select or Multi-Select elements (Dropkick - http://jamielottering.github.com/DropKick/ and jQuery UI MultiSelect Widget http://www.erichynds.com/jquery/jquery-ui-multiselect-widget/) :-( Any idea how to get around this? I had some trouble adding the plugin to the fiddle, so I created separate fiddles: http://jsfiddle.net/chayanyc/Dhaat/201/ - Function that works http://jsfiddle.net/chayanyc/vWLEn/89/