Hi,
I have a listbox (lstItems) that I want to populate with the items in
another listbox (lstSelected) that's in a modalpopupexten der. The update is
supposed to happen when I close the modalpopup so I tried to add a trigger
for the click event of the ok button but it seems this event is not fired
anymore on serverside when it's used as the OnOkControlID for the
modalpopupexten der.
Anyone know how to slove this?
Best regards.
-----webform-----
<%@ Page Language="C#" AutoEventWireup ="true" EnableEventVali dation="true"
CodeFile="Defau lt.aspx.cs" Inherits="_Defa ult" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Untitl ed Page</title>
<style type="text/css">
..modalBackgrou nd {
background-color:Gray;
filter:alpha(op acity=70);
opacity:0.7;
}
..modalPopup {
/*background-color:#ffffdd;*/
background-color: #ffffff;
border-width:3px;
border-style:solid;
/*border-color:Gray;*/
border-color: #0079b9;
padding: 3px 3px 30px 3px;
width: 670px;
height: 110px;
}
</style>
</head>
<body>
<form id="form1" runat="server">
<ajaxToolkit:To olkitScriptMana ger ID="ScriptManag er1" runat="server" />
<asp:UpdatePane l ID="UpdatePanel 2" runat="server">
<ContentTemplat e>
<asp:ListBox ID="lstItems" runat="server"> </asp:ListBox>
</ContentTemplate >
<Triggers>
<asp:AsyncPostB ackTrigger ControlID="lnkB tnOk" EventName="Clic k" />
</Triggers>
</asp:UpdatePanel >
<asp:LinkButt on ID="lnkEdit" runat="server"> Edit</asp:LinkButton>
<ajaxToolkit:Mo dalPopupExtende r
ID="ModalPopupE xtender1"
runat="server"
DropShadow="tru e"
PopupControlID= "pnlEdit"
TargetControlID ="lnkEdit"
BackgroundCssCl ass="modalBackg round"
OkControlID="ln kBtnOk"
CancelControlID ="lnkBtnCanc el" />
<asp:Panel ID="pnlEdit" runat="server" CssClass="modal Popup"
style="display: none;">
<div id="pnlHeader" style="text-align: right;">
<asp:LinkButt on ID="lnkBtnOk" runat="server" Text="close"
OnClick="lnkBtn Ok_Click"></asp:LinkButton>
<asp:LinkButt on ID="lnkBtnCance l" runat="server" Text="close"
style="display: none;"></asp:LinkButton>
</div>
<asp:UpdatePane l ID="UpdatePanel 1" runat="server" UpdateMode="Alw ays">
<ContentTemplat e>
<div style="float: left;">
<asp:ListBox ID="lstAvailabl e" runat="server"> </asp:ListBox>
</div>
<div style="float: left;">
<asp:Button ID="btnAdd" runat="server" Text=" " ToolTip="Add"
CausesValidatio n="false" OnClick="btnAdd _Click" /><br />
<asp:Button ID="btnDel" runat="server" Text=" < " ToolTip="Remove "
CausesValidatio n="false" OnClick="btnDel _Click" />
</div>
<div style="float: left;">
<asp:ListBox ID="lstSelected " runat="server"> </asp:ListBox>
</div>
</ContentTemplate >
</asp:UpdatePanel >
</asp:Panel>
</form>
</body>
</html>
-----Code behind-----
protected void Page_Load(objec t sender, EventArgs e)
{
ScriptManager1. RegisterAsyncPo stBackControl(l nkBtnOk);
if (!Page.IsPostBa ck)
{
lstAvailable.It ems.Add("a");
lstAvailable.It ems.Add("b");
lstAvailable.It ems.Add("c");
lstAvailable.It ems.Add("d");
lstAvailable.It ems.Add("e");
lstAvailable.It ems.Add("f");
}
}
protected void btnAdd_Click(ob ject sender, EventArgs e)
{
if (lstAvailable.S electedIndex -1)
{
string value = lstAvailable.Se lectedItem.Valu e;
RemoveItem(lstA vailable, value);
AddItem(lstSele cted, value);
//AddItem(lstItem s, value);
}
}
protected void btnDel_Click(ob ject sender, EventArgs e)
{
if (lstSelected.Se lectedIndex -1)
{
string value = lstSelected.Sel ectedItem.Value ;
RemoveItem(lstS elected, value);
//RemoveItem(lstI tems, value);
AddItem(lstAvai lable, value);
}
}
protected void lnkBtnOk_Click( object sender, EventArgs e)
{
lstItems.Items. Clear();
foreach(ListIte m li in lstSelected.Ite ms)
lstItems.Items. Add(li.Value);
UpdatePanel2.Up date();
}
private void RemoveItem(List Box lst, string value)
{
ListItem o = lst.Items.FindB yValue(value);
if (lst.Items.Coun t 1)
{
if (lst.SelectedIn dex == lst.Items.Count - 1)
lst.SelectedInd ex--;
else
lst.SelectedInd ex++;
}
else
lst.SelectedInd ex = -1;
lst.Items.Remov e(o);
}
private void AddItem(ListBox lst, string value)
{
lst.SelectedInd ex = -1;
lst.Items.Add(v alue);
lst.SelectedInd ex = lst.Items.Index Of(lst.Items.Fi ndByValue(value ));
}
