HTML Combobox 主要用於在 HTML 中建立表單。使用者可以根據自己的喜好從清單中選擇一個選項。它由 select 元素和 input type=”text” 元素組成。組合框的功能與選擇標籤相同。它在
Combobox是可以輕鬆支援各種瀏覽器的HTML元素。它作為最新形式的物件作為組合框,用於透過給定文字欄位中的選項填充資料。
我們知道,Combobox 是
此語法的程式碼如下:
<input type=text list=value> <datalist> <option>content</option> <option>content</option> <option>content</option> <option>content</option> <option>content</option> </datalist>
此語法的程式碼如下:
<input type="text" id="demo" name="comboboxdemo"/> <select name=" optionlist " onChange="combo(this, 'demo')"> <option>option 1</option> <option>option 2</option> <option>option 3</option> <option> option 4 </option> <option> option 5 </option> </select>
Javascript
var example = listdemo ld.selectedIndex; var demo = optionlist.options[example].innerHTML; var demo = optionlist.options[example] .value;
以下是 html 中的組合框範例:
代碼:
<html> <head> <title>Example of Combobox</title> </head> <style> .combo{ padding:10px; } </style> <h1>Front End Development languages</h1> <body> <select class="combo"> <option value="Select">Select....</option> <option value="html">HTML 5</option> <option value="css">CSS 3</option> <option value="javascript">Javascript/Ajax</option> <option value="bootstrap">Bootstrap</option> <option value="react">React JS</option> <option value="vue">Vue JS</option> <option value="2">Angular 2</option> <option value="4">Angular 4</option> <option value="5">Angular 5</option> <option value="6">Angular 6</option> <option value="7">Angular 7</option> <option value="8">Angular 8</option> <option value="CSS fw">CSS framework</option> <option value="rw">Responsive Web Design</option> <option value="dom">DOM scripting</option> <option value="preprocessors">Saas, Less</option> <option value="api">HTML 5 API</option></select> </body> </html>
輸出:
代碼:
<!DOCTYPE html> <html> <body> <h2>Combobox as a form element</h2> <p>As we all know combobox is the combination of the Select tag and Form element. Here we are going to create same thing in which we are creating combolist in which user can select option as per their choice and this option will redirect to the that particular option so It can be able to open new form using this option .</p> <form action="C:\Users\Sonali\Desktop\HTML files\Dropdownlist.html"> <input list="html_elements" name="web_language"> <datalist id="html_elements"> <option value="Anchor_tag"> </option> <option value="Aside _tag"> </option> <option value="dragdrop"> </option> <option value="Dropdownlist"> </option> <option value="Font_tag"></option> <option value="Block_elements"> </option> <option value="Blockquote"> </option> <option value="Colsapn"> </option> <option value="inline_style"> </option> <option value="Kbd"></option> <option value="Meta_tags"> </option> <option value="Quotation"> </option> <option value="Table_background"> </option> <option value="Table_border"> </option> <option value="Caption"> </option> <option value="Select tag"> </option> </datalist> <input type="submit"> </form> </body> </html> <!--HTML Form Code --> <!DOCTYPE html> <html> <head> <style> .dropdownbtn { background-color: lightgreen; color: white; padding: 12px; font-size: 12px; } .dropdowndemo{ position:fixed; display: block; } .dropdownlist-content { display: none; position: absolute; background-color: deepskyblue; min-width: 120px; z-index: 1; } .dropdownlist-content a { color:black; padding: 14px 18px; display: block; } .dropdownlist-content a:hover {background-color: lightcyan;} .dropdowndemo:hover .dropdownlist-content {display: block;} .dropdowndemo:hover .dropdownbtn {background-color: palevioletred;} </style> </head> <body> <div class="dropdowndemo"> <button class="dropdownbtn">HTML forms Element</button> <div class="dropdownlist-content"> <a href="#">Anchor_tag</a> <a href="#">Aside _tag</a> <a href="#">dragdropdown</a> <a href="#">Font_tag</a> <a href="#">Block_elements</a> <a href="#">Blockquote</a> <a href="#">Colsapn</a> <a href="#">inline_style</a> <a href="#">Kbd</a> <a href="#">Meta_tags</a> <a href="#">Quotation</a> <a href="#">Table_background</a> <a href="#">Table_border</a> <a href="#">Caption</a> <a href="#">Select tag</a> </div> </div> </body> </html>
輸出:
從清單中選擇一個選項後,它將連結到附加的表格或網頁。點擊提交值後,將顯示帶有元素的表單,如下所示:
代碼:
<!—Main page--> <!DOCTYPE html> <html> <body> <h2>Student Details</h2> <form action="C:\Users\Sonali\Desktop\HTML files\combodemo.html"> <input list="stud" name="demo"> <datalist id="stud"> <option value="Student Details"> </option> <option value="Registration"> </option> </datalist> <input type="submit"> </form> </body> </html> <!—Registration form code--> <html> <head> <title>Student Details</title> <style> h3{ text-align: center; } table{ color:white; background-color:chocolate; border-collapse: collapse; border: 2px solid black; } table.inner{ border: 0px } </style> </head> <body> <h3>STUDENT REGISTRATION FORM</h3> <form> <table align="center" cellpadding = "6"> <tr> <td>FIRST NAME</td> <td><input type="text" name="First_Name"/> </td> </tr> <tr> <td>LAST NAME</td> <td><input type="text" name="Last_Name"/> </td> </tr> <tr> <td>DATE OF BIRTH</td> <td><input type="date" name="Birth_date" /></td> </tr> <tr> <td>EMAIL ID</td> <td><input type="text" name="Email_Id" maxlength="100" /></td> </tr> <tr> <td>MOBILE NUMBER</td> <td> <input type="text" name="Mobile_Number" maxlength="10" /> </td> </tr> <tr> <td>GENDER</td> <td> Male <input type="radio" name="Gender" value="Male" /> Female <input type="radio" name="Gender" value="Female" /> Transgender <input type="radio" name="Gender" value="Transgender" /> </td> </tr> <tr> <td>CITY</td> <td><input type="text" name="City" maxlength="20" /> </td> </tr> <tr> <td>PINCODE</td> <td><input type="text" name="pincode" /> </td> </tr> <tr> <td>STATE</td> <td><input type="text" name="State" /> </td> </tr> <tr> <td>COUNTRY</td> <td><input type="text" name="Country" value="India" readonly="readonly" /></td> </tr> <tr> <td>HOBBIES <br /><br /><br /></td> <td> Writing <input type="checkbox" name="Hobby_1" value="Writing" /> Sketching <input type="checkbox" name="Hobby_2" value="Designing" /> Designing <input type="checkbox" name="Hobby_3" value="Cooking" /> <br /> Others <input type="checkbox" name="Hobby_4" value="Other"> <input type="text" name="Other_Hobby" maxlength="30" /> </td> </tr> <tr> <td>Percentage</td> <td><input type="text" name="percentage"/ maxlength="2" placeholder="marks in %"></td> </tr> <tr> <td colspan="2" align="center"> <input type="submit" value="Submit"> <input type="reset" value="Reset"> </td> </tr> </table> </form> </body> </html>
輸出:
HTML 組合方塊是網頁設計中建立選擇清單最重要的元素之一。最新的瀏覽器最常使用它。它由
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