i have one requirements for adding text box while clicking button. When i am clicking add button new text box will be created But previousely entered data in text box will be cleared.I dont want to clear the data in text box while clicking add button. How i can resolve this problem?
html
<tr id="div"></tr>
<tr>
<td>
<button type="button" class="btn btn-lg btn-info" onclick="generateRow();">Add</button>
</td>
</tr>
JS
function generateRow() {
var d=document.getElementById("div");
d.innerHTML+=" <input class='form-control' type='text' required autofocus name='year'/> ";
}
you can use something like this in javascript
function generateRow() {
var child="<input class='form-control' type='text' required autofocus name='year'/>";
document.getElementById("div").appendChild(child);
}
使用jquery .append()
将div添加到现有内容
function generateRow() {
var i=0,j=0;
var d=document.getElementById("div"),input,value;
//var m=document.getElementById("div");
var x=new Array(50);
while (i!=d.childNodes.length/2)
{
if (input = d.children[i]) {// If there's an input...
x[i]=input.value; // ...get the value
}
//d.children[i].value = value;
i++;
}
d.innerHTML += "<input class='form-control' type='text' required autofocus name='year'/> ";
// m.innerHTML += "<td><input type='button' required autofocus name='year' value='Remove'/> </td>";
while(j!=i)
{
d.children[j].value = x[j];
j++;
}
}
try this using pure javascript
function generateRow() {
var d=document.getElementById("div");
var f = document.createElement("input");
f.name="year";
d.appendChild(f);
}
A slightly different answer using jQuery. Might be useful for future users
<html>
<head>
<script src="http://code.jquery.com/jquery-latest.min.js" type="text/javascript"></script>
<script type="text/javascript">
function generateRow() {
$("#div").append("<input type='text' name='year'/><br/>");
}
</script>
</head>
<body>
<table>
<div id="div">
<!-- Buttons Go Here -->
</div>
<button type="button" onclick="generateRow();">Add</button>
</table>
</body>
</html>
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