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HOME > Javascript Tips & Tricks : การใช้งาน JavaScript ร่วมกับ Form > JavaScript Fixed Size and Get Size in HTML Element

JavaScript Fixed Size and Get Size in HTML Element

JavaScript Fixed Size and Get Size in HTML Element เป็นตัวอย่างการ JavaScript กับ Get Size in HTML Element ในการตรวจสอบและกำหนดค่าความกว้างของ Textbox

ตัวอย่างที่ 1 ตรวจสอบขนาดความกว้างของ Textbox

fixed_size_html_element1.html

<html>
<head>
<title>ThaiCreate.Com Tutorial</title>
</head>
<body>
<script language="JavaScript"> 
 	 function fncChkSize1()
	 {
		var ele = document.getElementById("txtA");
		alert (ele.size)
	 }

 	 function fncChkSize2()
	 {
		var ele = document.getElementById("txtB");
		alert (ele.style.width)
	 }
</script>
<body>
	<form name="frmMain" method="post">
			<input name="txtA" size="50" type="text" id="txtA" value=""> 
			<input name="chkSize1" type="button" id="chkSize1" onClick="Javascript:fncChkSize1();" value="Check Size">
			<hr>
			<input name="txtB" type="text" id="txtB" value="" style="width:100px"> 
			<input name="chkSize2" type="button" id="chkSize2" onClick="Javascript:fncChkSize2();" value="Check Size">
	</form>
</body>
</html>

Screenshot

JavaScript Fixed Size and Get Size in HTML Element

ตัวอย่างที่ 2 การขยายขนาดของ Textbox

fixed_size_html_element2.html

<html>
<head>
<title>ThaiCreate.Com Tutorial</title>
</head>
<body>
<script language="JavaScript"> 
 	 function fncFixedSize1()
	 {
		var ele = document.getElementById("txtA");
		ele.size = 100;
		alert (ele.size)
	 }

 	 function fncFixedSize2()
	 {
		var ele = document.getElementById("txtB");
		ele.style.width = "100px";
		alert (ele.style.width)
	 }
</script>
<body>
	<form name="frmMain" method="post">
			<input name="txtA" type="text" id="txtA" value=""> 
			<input name="fixedSize1" type="button" id="fixedSize1" onClick="Javascript:fncFixedSize1();" value="Fixed Size">
			<hr>
			<input name="txtB" type="text" id="txtB" value=""> 
			<input name="fixedSize2" type="button" id="fixedSize2" onClick="Javascript:fncFixedSize2();" value="Fixed Size">
	</form>
</body>
</html>

Screenshot

JavaScript Fixed Size and Get Size in HTML Element

ช่วยกันสนับสนุนรักษาเว็บไซต์ความรู้แห่งนี้ไว้ด้วยการสนับสนุน Source Code 2.0 ของทีมงานไทยครีเอท

ลองใช้ค้นหาข้อมูล


	By :	ThaiCreate.Com Team (บทความเป็นลิขสิทธิ์ของเว็บไทยครีเอทห้ามนำเผยแพร่ ณ เว็บไซต์อื่น ๆ)
	Score Rating :
	Create/Update Date :	2011-06-19 11:59:15 / 2011-06-19 12:03:29
	Download :	No files

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