如何在javascript中设置父dropdownlist的onchange事件上listbox的多个选定值
我的要求在ddl_fvr上选择Indexchanged时，必须在ddl_客户列表框中选择ddl_fvr ddl的值。我只想在javascript中执行此操作如何在javascript中设置父dropdownlist的onchange事件上listbox的多个选定值,javascript,asp.net,Javascript,Asp.net,我的要求在ddl_fvr上选择Indexchanged时，必须在ddl_客户列表框中选择ddl_fvr ddl的值。我只想在javascript中执行此操作 <asp:DropDownList ID="ddl_fvr" runat="server" AutoPostBack="true" > <asp:ListItem Text="a" Value="ezhisai,raja" /> <asp:ListItem Text="b" Value="devi,kumar
<asp:DropDownList ID="ddl_fvr" runat="server" AutoPostBack="true" >
<asp:ListItem Text="a" Value="ezhisai,raja" />
<asp:ListItem Text="b" Value="devi,kumar,sith" />
<asp:ListItem Text="c" Value="bala,raja" />
<asp:ListItem Text="d" Value="ezhisai,kumar,devi" />
</asp:DropDownList>
<asp:ListBox ID="ddl_customer" runat="server" SelectionMode="Multiple" style="width:300px" >
<asp:ListItem Text="ezhisai" Value="ezhisai" />
<asp:ListItem Text="raja" Value="raja" />
<asp:ListItem Text="devi" Value="devi" />
<asp:ListItem Text="kumar" Value="kumar" />
<asp:ListItem Text="sith" Value="sith" />
<asp:ListItem Text="bala" Value="bala" />
</asp:ListBox>
window.onload = function () {
var queue = document.getElementById("<%=ddl_fvr.ClientID%>");
queue.onchange = function () {
var queuval = queue.value;
var getSUBqueue = queuval.substring(0, queuval.length-1);
$.each(getSUBqueue.split(","), function (i, e) {
$("#ddl_customer option[value='" + e + "']").prop("selected", true);
});
};
}