Working with IFRAME in JavaScript - How to write content dynamically into IFRAME using JavaScript: another way
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The two previous sections demonstrated how to write content dynamically to an IFRAME. But the example I showed you earlier may not be suited for real-world requirements. Now, I would like to present you with another, better example, which could be really helpful! Let us have a look at the following code.
<html>
<head>
<meta name=vs_targetSchema content="http://schemas.microsoft.com/intellisense/ie5">
<script id="clientEventHandlersJS" language="javascript">
<!--
function Show()
{
// get our iframe
var testFrame = document.getElementById("myFrame");
var val;
val = "<TABLE border=1>";
val += "<TR><TD>SlNo</TD><TD>Name</TD></TR>";
val += "<TR><TD>1</TD><TD>Jag</TD></TR>";
val += "<TR><TD>2</TD><TD>Chat</TD></TR>";
val += "<TR><TD>3</TD><TD>Win</TD></TR>";
val += "<TR><TD>4</TD><TD>Dhan</TD></TR>";
val += "</TABLE>";
// now write out the new contents
var doc = testFrame.contentDocument;
if (doc == undefined || doc == null)
doc = testFrame.contentWindow.document;
doc.open();
doc.write(val);
doc.close();
document.all.myFrame.style.visibility="visible";
}
function Button1_onclick() {
Show();
}
//-->
</script>
</head>
<body>
<iframe id="myFrame" frameborder="0" vspace="0" hspace="0" marginwidth="0"
marginheight="0" width="100" scrolling=yes height="100"
style="BORDER-RIGHT: black 1px solid; BORDER-TOP: black 1px solid; Z-INDEX: 999; LEFT: 20px; BORDER-LEFT: black 1px solid; BORDER-BOTTOM: black 1px solid; POSITION: absolute; TOP: 100px; visibility:hidden;"></iframe>
<form id="form1">
<input type="button" value="Show" id="Button1" name="Button1" onclick="return Button1_onclick()">
</form>
</body>
</html>
Within the above code, the only important issue is the following:
var val;
val = "<TABLE border=1>";
val += "<TR><TD>SlNo</TD><TD>Name</TD></TR>";
val += "<TR><TD>1</TD><TD>Jag</TD></TR>";
val += "<TR><TD>2</TD><TD>Chat</TD></TR>";
val += "<TR><TD>3</TD><TD>Win</TD></TR>";
val += "<TR><TD>4</TD><TD>Dhan</TD></TR>";
val += "</TABLE>";
A new variable, “val,” is defined, which can contain any string (including any HTML). You can observe that I concatenated some HTML script (which forms a TABLE) to the same variable. Now, this variable is directly written to IFRAME, which makes you to see a dynamic TABLE in an IFRAME!
Any comments, suggestions, ideas, improvements, bugs, errors, feedback etc. are highly appreciated at jag_chat@yahoo.com.
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