forms

问题 I have this inside a component: private formBuilder: FormBuilder ... signupForm: FormGroup; ... this.signupForm = this.formBuilder.group({ 'name': [null, Validators.required], 'account': this.formBuilder.group({ 'email': [null, [Validators.required, ...]], 'confirm_email': [null, Validators.required], }, {validator: ValidationService.emailMatcher}), 'password': [null, [Validators.required,...]] }); And I want to set the value for the email field. I tried this, but no luck: this.signupForm

问题 I am actually developing an Android application on which I should display dynamic forms based on metadata contained inside JSON documents. Basically the way it works (without the details) is that a JSON document represent the structure of a form: { "fields": [ { "name": "fieldA", "type": "STRING", "minCharacters": 10, "maxCharacters": 100 }, { "name": "fieldB", "type": "INTEGER", "min": 10, "max": 100 }, { "name": "fieldC", "type": "BOOLEAN_CHECKBOX", "defaultValue": true } ... ], "name":

问题 I am actually developing an Android application on which I should display dynamic forms based on metadata contained inside JSON documents. Basically the way it works (without the details) is that a JSON document represent the structure of a form: { "fields": [ { "name": "fieldA", "type": "STRING", "minCharacters": 10, "maxCharacters": 100 }, { "name": "fieldB", "type": "INTEGER", "min": 10, "max": 100 }, { "name": "fieldC", "type": "BOOLEAN_CHECKBOX", "defaultValue": true } ... ], "name":

问题 I am using html 5 form validation for validate my form before submit, if is valid, submit, but I need validate my User Register form, so it need validate if Password Confirm value is equal camp Password, below is my form example: <form> <label>Login:</label> <input type="text" name="login" id="login"/><br/> <label>Password:</label> <input type="password" name="pass" id="pass"/><br/> <label>Password Confirm:</label> <input type="password" name="pass_conf" id="pass_conf"/><br/> <input type=

问题 I'm tring to prevent users to rapidly spam-click a button, which would freeze the app possibly for minutes while the code is being executed many times. $searchBtn_clicked = { $searchBtn.Enabled = $false ... some code that fills a listview from search result $searchBtn.Enabled = $true } My problem is: the code above will be executed as many times as the button is clicked, no matter what. Disabling the button after a click changes nothing. I also tried adding a start-sleep 2 before Enabling it

问题 I'm trying to display some html entities in a form text input, but v-model seems escaping them. Is there something I need to write to make v-model displaying correctly html entities? my sample code is <el-input v-model="data" readonly="readonly"></el-input> I know about v-html but I prefer keep using v-model due the automatic two-way binding. UPDATE Maybe I expressed myself wrong, I want to display the character, not the html entity, so instead 49.42₹ i need to display 49.42₹. 回答1: If you v

问题 I am using Formik to build an user input Form. And I am using withFormik to handle my Form. I am currently passing my handleSubmit inside my component like this: export const CreateForm = withFormik({ mapPropsToValues: () => ({ primarySkill: "12" }), validationSchema: () => FormSchema, handleSubmit: (values, { setSubmitting }) => { setTimeout(() => { alert(JSON.stringify(values, null, 2)); // For testing setSubmitting(false); }, 1000); } })(MyForm); Instead of doing this way, I would like to

问题 I have a form with 2 submit buttons. <form class="myForm"> <!-- Some Inputs Here --> <input type="submit" name="firstSubmit" value="first submit" /> <input type="submit" name="secondSubmit" value="second submit" /> </form> I am submitting this form via JQuery. $(".myForm").submit(function(){ var submitButton = ? //I need to catch the submit button that was clicked }); How can I know which submit button was clicked? 回答1: $('input[type="submit"]').on('click', function(){ $('.myForm').data(

问题 I try to handle a multiple form select option , in ReactJS. I have tried to be inspire of javascript classic code to handle that, but I fail. My code just don't send me the values selected. How handle that ? Here my code : class ChooseYourCharacter extends React.Component { constructor(props) { super(props); this.state = {value: 'coconut'}; this.handleChange = this.handleChange.bind(this); this.handleSubmit = this.handleSubmit.bind(this); } handleChange(event) { this.setState({value: event

问题 I'm having problems implementing a kind of comments form, where comments (called "microposts") belong_to both users and posts, users have_many comments, and posts (called "propositions") have_many comments. My code for the comments form is: <%= form_for @micropost do |f| %> <div class="field"> <%= f.text_area :content %> </div> <div class="actions"> <%= f.submit "Submit" %> </div> <% end %> The MicropostsController has this in the create action: def create @proposition = Proposition.find