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asp.net+javascript实现表格表头的拖拽

2008-09-25 14:28 393 查看

前台代码：

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>无标题页</title>
<style type="text/css">

/*样式表固定表头*/
.resizeDivClass
{
position:relative;
background-color:#cccccc;
width:2px;
height:20px;
z-index:1;
left:expression(this.parentElement.offsetWidth-1);
cursor:e-resize;
float:left;
}
.FixedTitleColumn
{
/*position: relative;*/
left: expression(this.parentElement.offsetParent.scrollLeft);
}
.FixedTitleRow
{
position: relative;
top: expression(this.offsetParent.scrollTop);
z-index: 10;
background-color: #E6ECF0;
}
.FixedDataColumn
{
left: expression(this.parentElement.offsetParent.parentElement.scrollLeft);
}
</style>
<script type="text/javascript">

/*实现拖拽表头*/
function MouseDownToResize(obj){
obj.mouseDownX=event.clientX;
obj.pareneTdW=obj.parentElement.offsetWidth;
obj.pareneTableW=theObjTable.offsetWidth;
obj.setCapture();
}
function MouseMoveToResize(obj){
if(!obj.mouseDownX) return false;
var newWidth=obj.pareneTdW*1+event.clientX*1-obj.mouseDownX;
if(newWidth>0)
{
obj.parentElement.style.width = newWidth;
theObjTable.style.width=obj.pareneTableW*1+event.clientX*1-obj.mouseDownX;
}
}
function MouseUpToResize(obj){
obj.releaseCapture();
obj.mouseDownX=0;
}

function selectRows(obj)
{
//obj.style.backgroundColor ="#000000";
obj.bgColor ="#CCCCCC";
var s=obj.getElementsByTagName("td");
document.getElementById("TextBox1").value=s[0].innerHTML+s[1].innerHTML+s[2].innerHTML+s[3].innerHTML;
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div id="divscroll" style="width:700px; height:300px;overflow:scroll; position:relative;">
<asp:Repeater ID="Repeater1" runat="server">
<HeaderTemplate>
<table id="theObjTable" style="table-layout:fixed;font-size:12px;" border="0" cellpadding="0" cellspacing="0">
<tr class = "FixedTitleRow">
<td class = "FixedTitleColumn"><div class="resizeDivClass" onmousedown="MouseDownToResize(this);" onmousemove="MouseMoveToResize(this);" onmouseup="MouseUpToResize(this);"></div>CustomerID</td>
<td class = "FixedTitleColumn"><div class="resizeDivClass" onmousedown="MouseDownToResize(this);" onmousemove="MouseMoveToResize(this);" onmouseup="MouseUpToResize(this);"></div>CompanyName</td>
<td class = "FixedTitleColumn"><div class="resizeDivClass" onmousedown="MouseDownToResize(this);" onmousemove="MouseMoveToResize(this);" onmouseup="MouseUpToResize(this);"></div>Address</td>
<td class = "FixedTitleColumn"><div class="resizeDivClass" onmousedown="MouseDownToResize(this);" onmousemove="MouseMoveToResize(this);" onmouseup="MouseUpToResize(this);"></div>Phone</td>
</tr>
</HeaderTemplate>
<ItemTemplate>
<tr onclick="selectRows(this)">
<td class = "FixedDataColumn"><%# DataBinder.Eval(Container.DataItem,"CustomerID") %></td>
<td class = "FixedDataColumn"><%# DataBinder.Eval(Container.DataItem,"CompanyName") %></td>
<td class = "FixedDataColumn"><%# DataBinder.Eval(Container.DataItem,"Address") %></td>
<td class = "FixedDataColumn"><%# DataBinder.Eval(Container.DataItem,"Phone") %></td>
</tr>
</ItemTemplate>
<FooterTemplate>
</table>
</FooterTemplate>
</asp:Repeater>
</div>
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
</form>
</body>
</html>

后台写个绑定到Repeater 控件的方法即可

protected void bind()
{
string sql = "select CustomerID,CompanyName,Address,Phone from Customers";
SqlConnection conn = new SqlConnection("server=.;uid=sa;pwd=sa;database=Northwind");
SqlDataAdapter sda = new SqlDataAdapter(sql, conn);
DataSet ds = new DataSet();
sda.Fill(ds, "Employees");
this.Repeater1.DataSource = ds;
this.Repeater1.DataBind();
}

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