Updated: 19/03/2017 this.form.controls[‘dept’].setValue(selected.id); OLD: For now we are forced to do a type cast: (<Control>this.form.controls[‘dept’]).updateValue(selected.id) Not very elegant I agree. Hope this gets improved in future versions.
Before we write any code, let’s discuss the difference between attributes and properties. Attributes are the settings you apply to elements in your HTML markup; the browser then parses the markup and creates DOM objects of various types that contain properties initialized with the values of the attributes. On DOM objects, such as a simple … Read more
<input> without a <form> appears valid, yes (at least for html 4.01, look near the end of 17.2.1): The elements used to create controls generally appear inside a FORM element, but may also appear outside of a FORM element declaration when they are used to build user interfaces. This is discussed in the section on … Read more
disabled input will not submit data. Use the readonly attribute: <input type=”text” readonly /> Source here
You can use the return value of the function to prevent the form submission <form name=”myForm” onsubmit=”return validateMyForm();”> and function like <script type=”text/javascript”> function validateMyForm() { if(check if your conditions are not satisfying) { alert(“validation failed false”); returnToPreviousPage(); return false; } alert(“validations passed”); return true; } </script> In case of Chrome 27.0.1453.116 m if above … Read more
Isn’t that what hidden parameters are for to start with…? <form action=”http://www.example.com” method=”GET”> <input type=”hidden” name=”a” value=”1″ /> <input type=”hidden” name=”b” value=”2″ /> <input type=”hidden” name=”c” value=”3″ /> <input type=”submit” /> </form> I wouldn’t count on any browser retaining any existing query string in the action URL. As the specifications (RFC1866, page 46; HTML 4.x … Read more
It’s not a matter of security. The HTTP protocol defines GET-type requests as being idempotent, while POSTs may have side effects. In plain English, that means that GET is used for viewing something, without changing it, while POST is used for changing something. For example, a search page should use GET, while a form that … Read more
A form is not allowed to be a child element of a table, tbody or tr. Attempting to put one there will tend to cause the browser to move the form to it appears after the table (while leaving its contents — table rows, table cells, inputs, etc — behind). You can have an entire … Read more
import { FormsModule } from ‘@angular/forms’; @NgModule({ imports: [ BrowserModule, FormsModule //<———-make sure you have added this. ], …. })
I’m just doing the trick of floating the buttons to the right. This way the Prev button is left of the Next button, but the Next comes first in the HTML structure: .f { float: right; } .clr { clear: both; } <form action=”action” method=”get”> <input type=”text” name=”abc”> <div id=”buttons”> <input type=”submit” class=”f” name=”next” value=”Next”> … Read more