利用javascript移动div层-javascript 拖动层:
程序功能:利用javascript开发在界面上随意拖动以下html code中的div层.
javascript移动div层-javascript 拖动层代码-
html code:
复制代码 代码如下:
<div id="div_Info" align="center">
<table border="0" cellpadding="0" cellspacing="0">
<tr>
<%-- 以下td中添加了javascript代码移动层,拖动层的几个事件
onmousedown事件当鼠标单击时发生
onmousemove 事件会在鼠标指针移动时发生
onmouseup 事件会在鼠标按键被松开时发生,
onmouseout 事件会在鼠标指针移出指定的对象时发生--%>
<td
onmousedown="movetianyamessage(div_Info, event)" onmousemove="movetianyamessageend(event);"
onmouseup="movetianyamessageend(event)" onmouseout="movetianyamessageend(event)">
</td>
<td align="center" >
<a href="javascript:disponseNone(div_Info)">x</a></td>
</tr>
<tr>
<td colspan="2" align="center" valign="top">
<table border="0" cellpadding="0" cellspacing="0">
<tr>
<td></td>
</tr>
<tr>
<td align="center">
<asp:Label ID="div_lblTitle" runat="server" Font-Size="16px"></asp:Label></td></tr>
<tr><td valign="top"></td></tr>
<tr><td id="Div_Td_Content" runat="server" valign="top"></td></tr>
<tr><td runat="server" valign="top"></td></tr>
<tr><td 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移动div层-javascript 拖动层代码-javascript code:
复制代码 代码如下:
<script language="javascript">
// javascript文件
/*调用方法
//onmousedown="movetianyamessage(div_Info, event)" onmousemove="movetianyamessageend(event);"
//onmouseup="movetianyamessageend(event)" onmouseout="movetianyamessageend(event)"
//onmousedown=鼠标点下的时候 onmousemove=鼠标经过的时候 onmouseup=鼠标弹起来的时候 onmouseout=鼠标离开的时候
*/
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>
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