clear

php clear text printed to webpage

由 ﹥＞﹥吖頭↗ 提交于 2019-12-13 04:57:49
问题 I have a html/php script which prints a text string directly to the page. However when I refresh the page that text is still there. I've googled this and check this forum too and tried various suggestions e.g. <input autocomplete="off"> and <body onload="document.FormName.reset();"> etc. None of them work. The php code that prints the string is (if regex matches serial number then execute command else print error string): if (preg_match($snregex, $sn, $matches)) { <command> } else { echo

how to clear a server-side html file's content, from input type button

由 风格不统一 提交于 2019-12-13 04:51:12
问题 i'm new to PHP. I want to use a (html) input type = button to make the content of a html empty. I searched the web, if i use fopen(file.html,w+), it will clear the files content " "w+" (Read/Write. Opens and clears the contents of file; or creates a new file if it doesn't exist)". Source: http://www.w3schools.com/php/func_filesystem_fopen.asp My problem is that there is probably a bit of code missing or syntax mistakes. because when i press the button nothing happends. i really don't know and

Clearing a textbox when any other radio buttons are selected

由 本秂侑毒 提交于 2019-12-13 04:26:10
问题 I started working on some code for a webpage yesterday & i am having trouble getting a few things working. I have 4 radio buttons, 3 of which have values applied to them & one which allows the user to enter a custom amount with a textfield next to it e.g [] = 3 [] = 11 [] = 32 [] = [_________] = Enter Custom Amount The problem is, if a user selects custom amount by pressing the radio button and enters 300 e.g, then afterwards decides to choose a predefined amount of 11 they can still submit

Using a single div to clear a float

由 感情迁移 提交于 2019-12-13 04:01:39
问题 I have always done this <div style="clear:both;"></div> to clear a float, but if HTML is XML, can't I just do <div style="clear:both;" /> since in XML they are the same thing? If not, why not? 回答1: No you can't for two reasons: 1) HTML is not XML: The general term "HTML" actually refers to many standards, among which the older ones (pre-4.01) commend rules fundamentally incompatible with XML (e.g. <br> is a valid HTML 4.01 tag which is self-closing but clearly does not honor the XML rule by

EditText return back previously input data after pressed back button

由 倖福魔咒の 提交于 2019-12-13 01:34:39
问题 I have an application login system type of application. Once the user pressed back button after login, the username and password EditText are filled with what the user enter just now. Is there any way to clear the EditText to empty? Sorry that if I make this sounds confusing. Any comment will be appreciated! 回答1: you can do this by overriding onPause method of Activity and in onPause method clear all EditText Value as: @Override protected void onPause(){ super.onPause(); // Clear all value

Clear a DateBox or attach a DatePicker to a TextBox - Google Script

由 人走茶凉 提交于 2019-12-13 01:28:52
问题 Is it possible to clear the value of a DateBox within a handler function? You can clear the value of a TextBox with just a simple app.getElementById('id').setValue(''); and you can set the value of a ListBox to a blank value by including listBox.addItem('') and then setting the ListBox to that item with app.getElementById('id').setItemSelected({item # for blank item}, true); but I have been unable to figure out a way to clear a DateBox. The goal is to have a simple form that allows users to

Callback on “clear all” button in notification area

由 久未见 提交于 2019-12-12 15:18:17
问题 I am developing and android app where i have to count how many times the app started through a notification. My problem is that i can't catch the event where the user presses "clear button" from the notification area. Is there any way or a callback in order to know when the clear button pressed? I have read about deleteIntent but i don't know how to use it. Thank you in advance 回答1: Create a deleteIntent Intent deleteIntent = new Intent(context, NotificationReceiver.class); deleteIntent

Issue clearing the Tkinter Canvas widget using also matplotlib

由 帅比萌擦擦* 提交于 2019-12-12 13:13:59
问题 This plots scattering angle versus detector distance once certain variables have been entered into Entry fields and the 'plot' button has been clicked. This plot shows up in the canvas I have created. The plot method is 'def flup()', about half way down the code which is carried out by clicking the button named 'bgra'. When I alter the variables in the entry fields then hit plot again the program adds another plot to the canvas, which is fine. What I want to do is add a button who's command

clear:both won't work

由 徘徊边缘 提交于 2019-12-12 10:58:58
问题 Below is a menu inside a header. The ul and li elements are floating and are now floating underneath the header, which I've tried to prevent with clear:both. However, that doesn't seem to work so I wonder... what can be wrong? html: <header> <ul> <li><a href='#'>Item 1</a></li> <li><a href='#'>Item 2</a></li> <li><a href='#'>Item 3</a></li> <li><a href='#'>Item 4</a></li> </ul> <div class='clear'/> </header> css: header { background: #888; height: 20px; padding: 10px; } ul{ margin: 18px 0;

Android: How to distinguish CLEAR all events from notification bar from user action

由 丶灬走出姿态 提交于 2019-12-12 10:41:55
问题 According to the specification, .setDeleteIntent(pendingIntent) is associated to both actions (CLEAR all events from notification bar and user action like swiping). My requirements are that when the user touches the notification that appears on the notification bar, he must be forwarded to the NotificationsList.class . This is done with my pendingInent: PendingIntent sendPendingIntent = PendingIntent.getActivity(context, reminderId, new Intent(context, NotificationsList.class), PendingIntent
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