javaScript中table表任意复制一行怎么实现JS

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javaScript中table表任意复制一行怎么实现JS,第1张

table表任意复制一行的关键是复制哪行,插入到什么位置,如何插入。第 一个问题复制哪行,通常是点击某一行以确定复制的当前行,核心代码如下:var e = window.eventif (e.target) targ = e.targetelse if (e.srcElement) targ = e.srcElementif (targ.nodeType == 3)targ = targ.parentNodeif(targ.tagName=="TD")第 二个问题插入位置,通常是点击行的下面pos = targ.parentNode.rowIndex+1也有可能在表头首行pos =0再就是表尾"beforeEnd"第三个问题如何插入,先复制当前行:var con = targ.parentNode.cloneNode(true)再进行插入,可以是insertRow,也可以是insertAdjacentElement:var x=document.getElementById('myTable').insertRow(pos);document.getElementById('myTable').insertAdjacentElement("beforeEnd",con)复制之后可对复制行里的内容进行修改调整:var y=x.insertCell(0).innerHTML=document.getElementById("cell1").value也可进行删除指定行:document.getElementById('myTable').removeChild(Obj.parentNode.rows[i])

js实现点击后将文字或图片复制到剪贴板的方法,代码非常简洁实用,具体功能代码如下所示:

<table width="99%" border="0" cellpadding="0" cellspacing="0" class="firtable">

<tr>

<th width="100%" style="color: white"><s:text name="询单明细"></s:text></th>

</tr>

<tr>

<td align="center">

<textarea name="inquiryContact1" id="inquiryContact1" rows="15" cols="60" readonly="readonly"></textarea>

<div id="inquiryInfoDIV" style="display:none">

<s:property value="inquiryContact" escape="false"/>

</div>

<script>dojo.byId("inquiryContact1").innerText=dojo.byId("inquiryInfoDIV").innerText

</script>

</td></tr>

<tr>

<td align="center">

<input type="button" id="button" name="button" value="复制" onclick="copyContact()"/>

</td></tr></table>

<script type="text/javascript">

var i = 0

function copyContact(){

var contat = document.getElementById("inquiryContact1").value

window.clipboardData.setData('text', contat)

if(window.clipboardData.getData('text')==''){

if(i==1){

alert("复制失败,请手动Ctrl+C快捷键复制!")

}else{

alert("复制失败,请重新复制!")

i = 1

}

}else{

alert("内容已经复制到剪贴板!")

}

}

</script>

1、最基本的复制

Java代码

<script language="JavaScript">

function readTxt()

{

alert(window.clipboardData.getData("text"))

}

function setTxt()

{

var t=document.getElementById("txt")

t.select()

window.clipboardData.setData('text',t.createTextRange().text)

}

</script>

<input name="txt" value="测试">

<input type="button" value="复制" onclick="setTxt()">

<input type="button" value="读取" onclick="readTxt()">

2、扩展复制:复制表格

Java代码

<INPUT TYPE="button" value="选中测试表格" onclick="CopyTable()">

测试

<TABLE border="1" id="oTable">

<TR>

<TD>测试表格</TD>

<TD>测试表格</TD>

</TR>

<TR>

<TD>测试表格</TD>

<TD>测试表格</TD>

</TR>

</TABLE>文字

<SCRIPT LANGUAGE="JavaScript">

<!--

function CopyTable()

{

var txt = document.body.createTextRange()

txt.moveToElementText(document.getElementById('oTable'))

txt.select()

}

//-->

</SCRIPT>

、兼容IE,firefox等浏览器的复制

Java代码

<script>

function copyToClipboard(txt) {

if(window.clipboardData) {

window.clipboardData.clearData()

window.clipboardData.setData("Text", txt)

} else if(navigator.userAgent.indexOf("Opera") != -1) {

window.location = txt

} else if (window.netscape) {

try {

netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect")

} catch (e) {

alert("被浏览器拒绝!\n请在浏览器地址栏输入'about:config'并回车\n然后将'signed.applets.codebase_principal_support'设置为'true'")

}

var clip = Components.classes['@mozilla.org/widget/clipboard1'].createInstance(Components.interfaces.nsIClipboard)

if (!clip)

return

var trans = Components.classes['@mozilla.org/widget/transferable1'].createInstance(Components.interfaces.nsITransferable)

if (!trans)

return

trans.addDataFlavor('text/unicode')

var str = new Object()

var len = new Object()

var str = Components.classes["@mozilla.org/supports-string1"].createInstance(Components.interfaces.nsISupportsString)

var copytext = txt

str.data = copytext

trans.setTransferData("text/unicode",str,copytext.length*2)

var clipid = Components.interfaces.nsIClipboard

if (!clip)

return false

clip.setData(trans,null,clipid.kGlobalClipboard)

}

}

</script>

<button onclick="copyToClipboard('你好!')">复制文本“你好!”</button>

<textarea id="test"></textarea>