checkbox

问题 In my app ,one interface has some checkBoxes,I wish after I exit the interface, the CheckBoxes should maintain the state.So next time I enter it can show what I have done last time.I have used SharedPreferrences to achieve this. checkbox1.setOnCheckedChangeListener(new OnCheckedChangeListener(){ public void onCheckedChanged(CompoundButton arg0, boolean isChecked) { // TODO Auto-generated method stub Editor editor = getSharedPreferences("syllabus", 0).edit(); editor.putBoolean("cbx1_ischecked"

问题 I found this code here... Instead of displaying the values on an alert, how to show them on a div like text content? <script type="text/javascript" src="http://code.jquery.com/jquery.min.js"></script> <script type="text/javascript"> $(document).ready(function() { $("button").click(function(){ var favorite = []; $.each($("input[name='sport']:checked"), function(){ favorite.push($(this).val()); }); alert("My favourite sports are: " + favorite.join(", ")); }); }); I want to show the values on

问题 I saw this on jsfiddle and I wanted to know how I would alter it so that if and only if 45 is checked the rest are disabled, if if 45 is unselected then the rest are enabled. I should be able to do all this with out submitting the form. The example javascript on jsfiddle: $(function(){ $(".rambo").change(function(){ $(this).siblings().attr("disabled", $(this).is(":checked")); }); }); 回答1: Just add proper id s and select on that HTML: <input type="checkbox" id="cb1" class="rambo" value='1' />

问题 I have a list view and each row contains two textviews and a checkbox. I need user sets just one of checkboxes and if user sets other checkbox, previous checkbox should be cleared and second checkbox can be set. I can generate the list but i don't know why onListItemClick() method does not work? therefore, I don't know which checkbox is set. and my next question is, how can i redraw list after clicking checkbox by user? my code is: package com.Infindo.DRM; import android.app.ListActivity;

问题 I want to center and stretch checkbox in UniformGrid 's cell. I've tried to do it in many ways: <UniformGrid> <CheckBox HorizontalAlignment="Stretch" VerticalAlignment="Stretch" HorizontalContentAlignment="Center" VerticalContentAlignment="Center" /> <CheckBox HorizontalAlignment="Center" VerticalAlignment="Center" /> <CheckBox HorizontalAlignment="Center" VerticalAlignment="Center" ClipToBounds="True" /> <CheckBox HorizontalAlignment="Stretch" VerticalAlignment="Stretch" ClipToBounds="True"

问题 I am using angular2 cli and this is the way i have setup my form In the component export class UsersAddComponent implements OnInit { ngOnInit() { this.userForm = this._formBuilder.group({ role: ['', [Validators.required]], others: this._formBuilder.array([]) //for adding multipe form inputs }); this.addNewUser(); } initAddress() { return this._formBuilder.group({ sendcred: [''], //checkbox needs no validation in my logic needs_reset: [''], // '' .....other fields here }); } addNewUser() { /

问题 I want to create a check box in each row in in tableview. My code works for only one checkbox. If i have more than 1 it fails. My code is UIButton * checkBox=[UIButton buttonWithType:UIButtonTypeCustom]; checkBox.tag=indexPath.row; checkBox.frame=CGRectMake(270,15, 20, 20); [cell.contentView addSubview:checkBox]; [checkBox setImage:[UIImage imageNamed:@"selectedBoxWith.png"] forState:UIControlStateNormal]; [checkBox addTarget:self action:@selector(checkBoxClicked:) forControlEvents

问题 First... I am open to skinning this cat a different way if I am going at it wrong to begin with. Using VB 2010 .net 4.0 and I am very much a beginner. I am making a product billing application that has a main form and a subform with additional options. Whenever that subform is reopened after being opened once, the checkbox events that were selected are blank by default. If I recheck them (so someone can uncheck) then any that are rechecked all refire and increase the variable again. I

问题 I have an android.R.layout.simple_list_item_multiple_choice with checkboxes an want so initiate some of them. How can I do that? I have the following code: private void fillList() { Cursor NotesCursor = mDbHelper.fetchAllNotes(); startManagingCursor(NotesCursor); String[] from = new String[] { NotesDbAdapter.KEY_TITLE, NotesDbAdapter.KEY_BODY, NotesDbAdapter.KEY_CHECKED }; int[] to = new int[] { android.R.id.text1, android.R.id.text2, //How set checked or not checked? }; SimpleCursorAdapter

问题 $(document).ready(function(){ function set_checked { alert('test'); $('*:checkbox').attr('checked', checked); } }); And this html <input onclick="set_checked()" value="Check all" type="button" /> Does not work for some reason. No alert box or nothing. 回答1: You have a few problems, missing parentheses in set_checked function definition undefined variable checked onclick references global function that isnt really global With jQuery it is better to add the click event to an element with the