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<%
@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm4.aspx.cs" Inherits="test.WEB_APP.WebForm4" %>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml" >
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<head runat="server">
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<title>无标题页</title>
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<script language="javascript" type="text/javascript">
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var ObjFrom,ObjTo;
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function intial(objFrom,objTo)
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{
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ObjFrom = rtObject(objFrom);
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ObjTo = rtObject(objTo);
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}
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//返回ListBox对象
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function rtObject(obj)
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{
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return document.form1.elements[obj];
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}
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function AddItem(lbFrom,lbTo)
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{
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intial(lbFrom,lbTo);
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var fromCount = ObjFrom.options.length;
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if (fromCount==0)
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{
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alert("没有可供选择的数据");
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return;
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}
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for(var h=0;h<fromCount;h++)
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{
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if (ObjFrom.options[h].selected )
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{
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var selectValue = ObjFrom.options[h].value;
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var selectText = ObjFrom.options[h].text;
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var toCount = ObjTo.options.length;
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var bool_ = false;
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for (k=0; k<toCount; k++ )
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{
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if (ObjTo.options[k].value == selectValue)
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{
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bool_ = true;
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break;
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}
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}
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if ( bool_ == false)
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{
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ObjTo.options[toCount] = new Option(selectValue, selectText);
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DeletSingle(ObjFrom,h);
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break;
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}
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}
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}
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}
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function DelItem(lbTo,lbFrom)
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{
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intial(lbTo,lbFrom);
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var minSelected=0;
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for (var i=ObjFrom.length-1; i>=0; i--)
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{
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if (ObjFrom.options[i].selected)
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{
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if (minSelected==0 || i<minSelected)
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{
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minSelected=i;
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AddItem(lbTo,lbFrom);
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break;
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}
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}
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}
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var i=ObjFrom.length;
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if (i>0)
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{
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minSelected=i-1;
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ObjFrom.options[minSelected].selected=true;
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}
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}
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function AddItemAll(lbFrom,lbTo)
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{
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intial(lbFrom,lbTo);
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var fromCount = ObjFrom.options.length;
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if (fromCount==0)
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return;
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for(var h=0;h<fromCount;h++)
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{
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var code = ObjFrom.options[h].value;
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var value = ObjFrom.options[h].text;
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var toCount = ObjTo.options.length;
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ObjTo.options[toCount] = new Option(value, code);
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}
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//删除所有项
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for(var h=fromCount;h>=0;h--)
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{
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DeletSingle(ObjFrom,h);
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}
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}
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//删除单个项
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function DeletSingle(obj,index)
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{
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obj.options[index] = null;
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}
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//将选择的值放入隐藏控件
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function getValues()
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{
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var ObjHid = document.getElementById('hidValue');
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ObjHid.value = "";
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var m = ObjTo.options.length;
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for(var i = 0 ; i < m ; i++)
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{
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ObjHid.value += ObjTo.options[i].value+","
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}
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ObjHid.value = ObjHid.value.substring(0,ObjHid.value.lastIndexOf(","));
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alert(ObjHid.value);
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}
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</script>
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</head>
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<body id="getValue">
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<form id="form1" runat="server">
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<div>
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<table>
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<TR>
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<TD style="WIDTH: 79px; height: 123px;">
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<asp:ListBox ID="lbMoveFrom" runat="server" Height="120px" SelectionMode="Multiple"
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Width="82px">
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<asp:ListItem>a</asp:ListItem>
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<asp:ListItem>b</asp:ListItem>
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<asp:ListItem>c</asp:ListItem>
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<asp:ListItem>d</asp:ListItem>
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<asp:ListItem>e</asp:ListItem>
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<asp:ListItem>f</asp:ListItem>
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<asp:ListItem>g</asp:ListItem>
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<asp:ListItem>h</asp:ListItem>
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</asp:ListBox></TD>
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<TD style="WIDTH: 77px; height: 123px;" align="center">
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<P><INPUT onclick="JavaScript:AddItem('lbMoveFrom','lbMoveTo')" tabIndex="8" type="button"
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value="添 加>>" name="Input"></P>
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<P><INPUT onclick="JavaScript:DelItem('lbMoveTo','lbMoveFrom')" tabIndex="9" type="button"
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value="<<移 出" name="Input2"></P>
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<P><INPUT type="button" onclick="JavaScript:AddItemAll('lbMoveFrom','lbMoveTo')" value="全部添加>>"></P>
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<P><FONT face="宋体"></FONT> </P>
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</TD>
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<TD bgColor="#ffffff" style="height: 123px">
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<asp:ListBox ID="lbMoveTo" runat="server" Height="123px" SelectionMode="Multiple"
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Width="74px"></asp:ListBox></TD>
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</TR>
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</table>
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</div>
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<input id="hidValue" type="hidden" />
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<input id="btn" type="button" onclick="getValues()" value="获取数据" />
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</form>
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</body>
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</html>
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