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程序功能:利用Javascript開發(fā)在界面上隨意拖動以下html code中的div層.
Javascript移動div層-Javascript 拖動層代碼-
html code:
復(fù)制代碼 代碼如下:
<div id="div_Info" style="display: none; dz-index: 101; left: 175px; width: 650px;
position: absolute; top: 346px;" align="center">
<table border="0" cellpadding="0" cellspacing="0">
<tr>
<%-- 以下td中添加了Javascript代碼移動層,拖動層的幾個事件
onmousedown事件當(dāng)鼠標(biāo)單擊時發(fā)生
onmousemove 事件會在鼠標(biāo)指針移動時發(fā)生
onmouseup 事件會在鼠標(biāo)按鍵被松開時發(fā)生,
onmouseout 事件會在鼠標(biāo)指針移出指定的對象時發(fā)生--%>
<td style="width: 628px; height: 22px; background-color: #3f3200;" class="div_table_bian"
onmousedown="movetianyamessage(div_Info, event)" onmousemove="movetianyamessageend(event);"
onmouseup="movetianyamessageend(event)" onmouseout="movetianyamessageend(event)">
</td>
<td style="width: 22px; background-color: #221B00; font-size: 12px; color: #ffffff;
height: 22px;" align="center" class="div_table_notLeft_bian" >
<a href="Javascript:disponseNone(div_Info)" style=" color:White;">x</a></td>
</tr>
<tr>
<td colspan="2" style="background-color: #000000" align="center" valign="top" class="div_table_notTop_bian">
<table border="0" cellpadding="0" cellspacing="0" style="width: 90%">
<tr>
<td style="height: 25px;"></td>
</tr>
<tr>
<td style="height: 23px;" class="white12px" align="center">
<ASP:Label ID="div_lblTitle" runat="server" Font-Size="16px"></ASP:Label></td></tr>
<tr><td style="height: 15px" valign="top"></td></tr>
<tr><td id="Div_Td_Content" runat="server" class="white12px" valign="top"></td></tr>
<tr><td runat="server" class="white12px" valign="top" style="height: 15px"></td></tr>
<tr><td class="white12px" style="height: 40px" align="center" valign="middle">
<ASP:ImageButton ID="ImageButton2" runat="server" ImageUrl="~/images/returns.jpg"
OnClientClick="disponse_div(div_Info);return false;" /></td></tr>
</table>
</td></tr>
</table>
</div>
Javascript移動div層-Javascript 拖動層代碼-Javascript code:
復(fù)制代碼 代碼如下:
<script language="Javascript">
// Javascript文件
/*調(diào)用方法
//onmousedown="movetianyamessage(div_Info, event)" onmousemove="movetianyamessageend(event);"
//onmouseup="movetianyamessageend(event)" onmouseout="movetianyamessageend(event)"
//onmousedown=鼠標(biāo)點(diǎn)下的時候 onmousemove=鼠標(biāo)經(jīng)過的時候 onmouseup=鼠標(biāo)彈起來的時候 onmouseout=鼠標(biāo)離開的時候
*/
var tianyamessage = ''
var iLayerMaxNum = 999;
document.onmouseup = movetianyamessageend;
document.onmousemove = movetianyamessagestart;
var tianyamessagepixefX;
var tianyamessagepixefY;
function movetianyamessage(Object, event)
{
tianyamessage = Object.id;
if(document.all)
{
document.getElementById(tianyamessage).setCapture();
tianyamessagepixefX = event.x - document.getElementById(tianyamessage).style.pixelLeft;
tianyamessagepixefY = event.y - document.getElementById(tianyamessage).style.pixelTop;
}
else if(window.captureEvents)
{
window.captureEvents(Event.MOUSEMOVE|Event.MOUSEUP);
tianyamessagepixefX = event.layerX;
tianyamessagepixefY = event.layerY;
}
document.getElementById(tianyamessage).style.zIndex = iLayerMaxNum;
iLayerMaxNum = iLayerMaxNum + 1;
}
function movetianyamessagestart(evt)
{
if(tianyamessage!=''){
if(document.all)
{
document.getElementById(tianyamessage).style.left = event.x - tianyamessagepixefX;
document.getElementById(tianyamessage).style.top = event.y - tianyamessagepixefY;
}
else if(window.captureEvents)
{
document.getElementById(tianyamessage).style.left = (evt.clientX - tianyamessagepixefX) + "px";
document.getElementById(tianyamessage).style.top = (evt.clientY - tianyamessagepixefY) + "px";
}
}
}
function movetianyamessageend(evt)
{
if(tianyamessage!='')
{
if(document.all)
{
document.getElementById(tianyamessage).releaseCapture();
tianyamessage='';
}
else if(window.captureEvents){
window.captureEvents(Event.MOUSEMOVE|Event.MOUSEUP);
tianyamessage='';
}
}
}
function disponse_div(obj)
{
if(obj.style.display=="block")
{
obj.style.display="none";
}
else
{
obj.style.display="block";
}
}
</script>
JavaScript技術(shù)：利用javascript移動div層-javascript 拖動層，轉(zhuǎn)載需保留來源！
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