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Changing Tabs with AspxPageControl

I have a problem about changing tabs in my AspxPageControl.I use this tool for showing my web pages dynamically. When I change my active tab, the old tab vanishes. I searched a bit and found this problem can be fixed with saving states in cache or session.
However I am really rookie about developing web apps. How can I do that ? I also used jquery ui on my project but it didn't work. So I changed my project with this tool. Also I could take advice about tabpages that have dynamic webpages in.
This button basicly adds a new page on my tab and set active page this tab:
protected void bt_yeniEklenenler_Click(object sender, EventArgs e)
{
YeniEklenen_count= YeniEklenen_count + 1;
TabPage tab = new TabPage();
tab.Text = "Yeni Eklenenler";
tab.Name = "tab_yenieklenenler" + YeniEklenen_count.ToString();
LiteralControl l = new LiteralControl("<iframe src='YeniEklenenler.aspx' runat='client' id='frm2' style='width: 99 %; height: 78vh; margin - top:20px'></ iframe >");
l.ID = "lit_yenieklenenler" + YeniEklenen_count.ToString();
tab.Controls.Add(l);
ASPxPageControl1.TabPages.Add(tab);
ASPxPageControl1.ActiveTabPage = ASPxPageControl1.TabPages.FindByName(tab.Name);
}
And my design source:
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<asp:ScriptManager runat="server" ID="ScriptManager1">
</asp:ScriptManager>
<asp:Button ID="bt_yeniEklenenler" runat="server" OnClick="bt_yeniEklenenler_Click" Text="Yeni Eklenenler" OnClientClick="ButtonClick();" />
<asp:Button ID="bt_kampanya" runat="server" Text="Kampanya" OnClick="bt_kampanya_Click" />
<asp:Button ID="bt_fiyatListesi" runat="server" Text="Fiyat Listesi" OnClick="bt_fiyatListesi_Click" />
<asp:Button ID="bt_sepetim" runat="server" Text="Sepetim" OnClick="bt_sepetim_Click" />
<asp:Button ID="bt_siparisListesi" runat="server" Text="Sipariş Listesi" OnClick="bt_siparisListesi_Click" />
<asp:Button ID="bt_firmaBilgileri" runat="server" Text="Firma Bilgileri" OnClick="bt_firmaBilgileri_Click" />
<asp:Button ID="bt_cariHareket" runat="server" Text="Cari Hareket" OnClick="bt_cariHareket_Click" />
<asp:Button ID="Button2" runat="server" OnClick="Button1_Click" Text="KAPAT" />
<dx:ASPxPageControl runat="server" ActiveTabIndex="0" RenderMode="Lightweight" Width="1146px" Height="555px" ID="ASPxPageControl1" OnActiveTabChanged="ASPxPageControl1_ActiveTabChanged" AutoPostBack="True">
<TabPages>
<dx:TabPage Text="Ana Sayfa">
<ContentCollection>
<dx:ContentControl runat="server" SupportsDisabledAttribute="True">
<h1 style="text-align:center">_____ SİSTEMİNE HOŞGELDİNİZ...</h1>
<h1 style="text-align:center"> </h1>
<h1 style="text-align:center">
<asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="KAPAT" />
</h1>
</dx:ContentControl>
</ContentCollection>
</dx:TabPage>
</TabPages>
</dx:ASPxPageControl>
</ContentTemplate>
</asp:UpdatePanel>
Note: I tried turn on AutoPostBack also, but then my tab don't change when I click another tab.
Thanks in advance :)

Refer these:
ASPxPageControl - how to add a new page using Client-Side Scripts
ASPxPageControl - How to add tab on client side
AspxPageControl add tabpage dynamically
You can try adding a tab page using the javascript(client side methods) and after that you can set the active tab. Try using the the client side ASPxClientTabControlBase.SetActiveTab method
ASPxPageControl how to ActiveTabChanged event after client side event to get data first
ASPxPageControl clientside event ActiveTabChanged
ASPxPageControl - How to set an active tab on the client-side
Hope these help you to implement the functionality as you want to do.

Populating existing dropdownlist using AsyncPostBackTrigger, not populate a new dropdownlist

For my web app, I tried to populate dropdownlist (DDL) based on what client click on the calendar extender ( I have this declared in codebehind vb.net to load it from database) using AsyncPostBackTrigger (because I dont want the page to autopostback). I have the button to fire the date selected and it did worked to populate the DDL except not really the way I wanted it to. Instead of updating it in the existing DDL, it creates a new DDL besides the existing ones. I tried looking for solution but did not managed to find any. Anyone can help me figure out why this happens and how to fix this?
Here's my asp.net & javascript code
<asp:Label ID="label16" runat = "server" Text="Select the date"></asp:Label></td>
<td id="Td29" style="width:290px;" runat="server">
<asp:TextBox ID="tbPostingDt" runat="server" style ="width:174px;"></asp:TextBox>
<asp:Button ID="ClickBtn" runat="server" Text="Click" style="display:none" OnClick="ClickBtn_Click" />
<asp:ImageButton ID="CalendarBtnPostingDt" runat="server" ImageUrl="~/Images/Calendar_scheduleHS.png" AlternateText="Click to display calendar"/>
<cc1:CalendarExtender ID="calPost" runat="server" PopupButtonID="CalendarBtnPostingDt"
TargetControlID="tbPostingDt" OnClientDateSelectionChanged="dateSelectionChanged" Format="dd-MMM-yyyy" Enabled="True"></cc1:CalendarExtender></td>
<asp:UpdatePanel ID="UpdatePanel" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<asp:Label ID="label18" runat = "server" Text="Post Cycle No"></asp:Label></td>
<td id="Td33" style="width:290px;" runat="server">
<asp:DropDownList ID = "ddlPostCycleNo" runat = "server" style ="width:180px;">
<asp:ListItem>ALL</asp:ListItem>
</asp:DropDownList> </td>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="ClickBtn" EventName="Click" />
</Triggers>
</asp:UpdatePanel>
function dateSelectionChanged(sender, args) {
var PostingDt = document.getElementById('<%= tbPostingDt.ClientID%>').value.trim();
var clickButton = document.getElementById("<%= ClickBtn.ClientID %>");
clickButton.click();
}

nevermind I figured it out already. I used the ontextChanged for the textbox when user select the date from calendar, and removed OnClientDateSelectionChanged, triggers and dummy button. I keep the UpdatePanel and it works just the way I wanted.

Asp.net repeater based Modal with ContentTemplate needs eval passed to parameter

I believe a few friends and I have coded each other into a bit of a corner. Here's what's happening: We have an aspx page building a table of Entries using a repeater, and each row has its respective EntryID. Each row has a link to a modal that displays more detailed information, which we create on the fly with a div template and an eval('EntryID') on the repeater.
The problem now is we have a ContentTemplate we use with an UpdatePanel for a series of LinkButton presses the user can follow to alter the Entry. The issue is that we pass all of the information for the Modal details via a Javascript call that opens the modal, and I need to somehow get this information to the code behind for the LinkButton's onclick call.
<asp:UpdatePanel ID="StatusUpdatePanel" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<asp:Panel ID="pnlStatus" runat="server">
<asp:Panel ID="pnlStatusMain" runat="server">
<asp:Label ID="lblStatusText" runat="server" Text="Our validator returned a yellow status for this entry"></asp:Label>
<asp:LinkButton ID="lnkbtnChangeStatusToGreen" runat="server" OnClick="ChangeStatusToGreen_Click">Change status to green</asp:LinkButton>
<asp:Panel ID="pnlStatusConfirm" runat="server" CssClass="hideDiv">
Are you sure?<br />
<asp:LinkButton ID="lnkbtnCancelChangeStatus" runat="server" OnClick="CancelChangeStatus_Click" CssClass="grayText">Cancel</asp:LinkButton>
|
<asp:LinkButton ID="lnkbtnProceedChangeStatus" runat="server" OnClick="ProceedChangeStatus_Click" CommandArgument="">Yes, proceed</asp:LinkButton>
</asp:Panel>
</asp:Panel>
</asp:Panel>
</ContentTemplate>
</asp:UpdatePanel>
The link in question being lnkbtnProceedChangeStatus.
The rest of the modal is template divs and tables that we use the Javascript call to populate with the appropriate information using html inserts. I'm thinking some sort of post back, but am not sure what would be the best way to go about it. Any ideas?

Multiple UpdateProgress Controls In TabContainer, Linked To Single UpdatePanel

I have an UpdatePanel with a TabContainer in it. Each TabPanel has a Gridview in it (code not included since it's not important), and I would like to have a different UpdateProgress controls located in each TabPanel. Please see my code below for an example of what I'm trying to do.
I know the standard approach is to locate the UpdateProgress control outside of the UpdatePanel, but I would like it/them to be located inside the UpdatePanel and TabContainer because I want the "Loading..." message to appear right on top of each of my GridViews. Currently the UpdateProgress control works on the first TabPanel (as indicated below in my code), but not on the second or any subsequent TabPanels.
<asp:UpdatePanel ID="updTest" runat="server">
<ContentTemplate>
<ajax:TabContainer ID="conTest" runat="server">
<ajax:TabPanel ID="pnlTest1" runat="server">
<!--This UpdateProgress Control Does work-->
<asp:UpdateProgress ID="UpdateProgress1" runat="server" AssociatedUpdatePanelID="updTest">
<ProgressTemplate>
Loading, please wait....
</ProgressTemplate>
</asp:UpdateProgress>
</ajax:TabPanel>
<ajax:TabPanel ID="pnlTest1" runat="server">
<!--This UpdateProgress Control Doesn't work. How can I fix it?-->
<asp:UpdateProgress ID="UpdateProgress2" runat="server" AssociatedUpdatePanelID="updTest">
<ProgressTemplate>
Loading, please wait....
</ProgressTemplate>
</asp:UpdateProgress>
</ajax:TabPanel>
</ajax:TabContainer>
</ContentTemplate>
I'm open to another approach if the way I'm trying to accomplish this isn't the best way. Thanks for any ideas.

What you can do is still only have one updateprogress but inside of your put an updatepanel to change what your updateProgress shows.
something like this
<asp:UpdateProgress ID="UpdateProgress1" runat="server" DynamicLayout="true">
<ProgressTemplate>
<asp:UpdatePanel ID="up1" runat="server" >
<ContentTemplate>
<!-- put a label of something in here -->
</ContentTemplate>
</asp:UpdatePanel>
</ProgressTemplate>
</asp:UpdateProgress>
hopefully this makes sense, I'm not the best at explaining sometimes.

Javascript not executing after partial rendering

I have a asp.net panel that is initially hidden and is shown when a button is clicked. There is javascript inside that panel and it doesn't execute after the panel is set to be visible. I can see that javascript function gets outputted on page but it is not called. What can I do to make it so that function gets called? Here is an example:
<asp:LinkButton id="lbtn" runat="server" Text="show" OnClick="lbtn_Click" />
<asp:UpdatePanel id="upnl" runat="server" UpdateMode="Conditional">
<contenttemplate>
<asp:panel id="pnlContent" runat="server" visible="false">
content initially hidden.
<script>
alert('done!');
</script>
</asp:panel>
</contenttemplate>
<triggers>
<asp:AsyncPostBackTrigger ControlID="lbtn"/>
</triggers>
</asp:UpdatePanel>

You'll probably want to have some sort of end request method that gets called whenever an ajax method is called. this would have to be under the script resource.
<script type="text/javascript">
var prm = Sys.WebForms.PageRequestManager.getInstance();
prm.add_endRequest(function(sender, args){ alert("endRequest"); });
</script>

Rather than doing that, why not use Page.ClientScript.RegisterStartupScript()l to trigger it to run.