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JavaScript implementation dynamic additions and deletions table __java

Source: Internet
Author: User
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fill in the upper text box with "name/email/age" to enable the dynamic addition or deletion of cells in the table below Effect:

1. html code:

<body>
<p align= "center" id= "info" >
    name: <input type= "text" id = "username" > 
    Email: < Input type= "text" id = "Email" > 
    Age: <input type= "text" id = "Age" > 
</p>

<div align= "Center "><input  type=" button "value=" Add "onclick=" AddRow () "></div>

 
2. JavaScript code: 

 <script type= "Text/javascript" >//Three text box//A Add Button button implementation function add info to table///table, row number dynamic increase Fu

            Nction AddRow () {//Get INPUT element node array var inputnodes = document.getElementsByTagName ("input");
            var str = new String (inputnodes[0].value);
            var str1 = new String (inputnodes[1].value);
            var str2 = new String (inputnodes[2].value); if ((Str.length > 0) && (str1.length > 0) && (str2.length > 0)) {//Tim
                Add a row of InsertRow () method to insert a new row var newtr = Testtble.insertrow () at a specified position in the table.
                Add the four column Sertcell () method to insert an empty <td> element var newTd0 = Newtr.insertcell () at the specified position in the HTML table's row.
                var newTd1 = Newtr.insertcell ();
                var newTd2 = Newtr.insertcell ();
                var newTd3 = Newtr.insertcell ();
                Assigning value newtd0.innertext= inputnodes[0].value to each column respectively;Newtd1.innertext= Inputnodes[1].value;
                Newtd2.innertext= Inputnodes[2].value;
            newtd3.innerhtml = "<input type= ' button ' value= ' delete ' onclick= ' deletetable (this) ' >"; else {alert ("Please complete the information first.")
                ");
            Return } function Deletetable (r) {//Get current table row number var i = R.PARENTNODE.PARENTNODE.R
            Owindex;
        Call DeleteRow () to delete the bank document.getElementById (' testtble '). DeleteRow (i); } </script>

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Related Keywords:
angularjs dynamic table example dynamic class name javascript javascript dynamic variables dynamic dropdown javascript javascript dynamic variable name javascript object dynamic key static and dynamic variables
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