textbox control usage

Textbox control is a form element used to collect user single-line text input. Its usage includes creating an element using HTML and specifying a unique ID and placeholder text. Use CSS to customize the text box appearance, such as width, height and borders. Use JavaScript to access text boxes, get input values ​​and add event listeners. Enhance text box functionality with properties such as name, size, and autocomplete.

Textbox control usage

The Textbox control is an HTML element used to collect user input of a single line of text. It is an important form element that can be used to create a variety of interactive web forms.

Usage:

1. HTML code:

<label for="textbox-example">输入您的名字：</label>
<input type="text" id="textbox-example" placeholder="请输入您的名字" required>

• type ="text" Specifies that this is a text input field.
• id="textbox-example" Assign a unique ID to the control.
• placeholder The property sets the placeholder text to prompt the user for input type. The
• required attribute makes this field required and the user must fill it out in order to submit the form.

2. CSS Style:

You can customize the appearance of the text box using CSS styles, for example:

#textbox-example {
  width: 250px;
  height: 30px;
  border: 1px solid #ccc;
  padding: 10px;
}

3. JavaScript Access:

Using JavaScript you can interact with text boxes, for example:

// 获取文本框的元素
const nameInput = document.getElementById("textbox-example");

// 获取输入值
const name = nameInput.value;

// 为文本框添加事件侦听器
nameInput.addEventListener("change", (e) => {
  // 在用户键入时更新输入值
  console.log(`您输入的名字是：${e.target.value}`);
});

Properties:

Textbox control also has the following properties:

• name: is used to identify the control.
• size: Specify the number of characters in the control.
• maxlength: Limit the maximum length of input text.
• readonly: Disables user editing of text.
• autocomplete: Whether to automatically fill in user data.

The above is the detailed content of textbox control usage. For more information, please follow other related articles on the PHP Chinese website!