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ASP updatepanel doesn't refresh ajax tabpage

I have an ajax tabcontainer in an updatepanel with all tabpages set visible until you want to add a tabpanel based on the dropdownlist selected value
CODE:
<cc1:TabContainer ID="tabControlParameters" runat="server" CssClass="ajax__tab_xp"
ScrollBars="Both" ActiveTabIndex="15" UseVerticalStripPlacement="True">
<%--EnvironmentTab --%>
<cc1:TabPanel ID="pnlEnvironment" HeaderText="Environment" runat="server" Visible="false">
<ContentTemplate>
//somecontent
</ContentTemplate>
</cc1:TabPanel>
<cc1:TabPanel ID="pnlDatabase" HeaderText="Environment" runat="server" Visible="false">
<ContentTemplate>
//somecontent
</ContentTemplate>
</cc1:TabPanel>
<cc1:TabPanel ID="pnlFirstError" HeaderText="Environment" runat="server" Visible="false">
<ContentTemplate>
//somecontent
</ContentTemplate>
</cc1:TabPanel>
With a button add which is inside the Updatepanel and has a correct async trigger assigned to it.
From C# codebehind I've made a loop to check if the dropdownlist selectedvalue = panel_headertext if so make it visible
CODE:
protected void btnAddParameters_Click(object sender, EventArgs e)
{
String Parameter = ddlParameterTypes.SelectedValue.ToString();
AjaxControlToolkit.TabContainer container = (AjaxControlToolkit.TabContainer)tabControlParameters;
foreach (object obj in container.Controls)
{
if (obj is AjaxControlToolkit.TabPanel)
{
AjaxControlToolkit.TabPanel tabPanel = (AjaxControlToolkit.TabPanel)obj;
if (tabPanel.HeaderText == ddlParameterTypes.SelectedValue)
{
tabPanel.Visible = true;
tabPanel = tabControlParameters.ActiveTab;
container.ActiveTab = tabPanel;
}
}
}
}
Now this works perfectly if the updatepanel trigger is set to fullPostback but it's set to async postback then it only works on the first click even though the event is fired every time I'm clicking on the button. Am I missing something obvious here?
Petar

You have the same value in HeaderText for each of your TabPanels. I think it'll work if you correct the HeaderText attributes.

How to hide and display asp:buttons in asp.net from code behind?

I am working on asp.net web application.
In one Page I have two asp buttons.
I want to display them in one condition otherwise I don't want to display them.
So I'm trying to do the same like this. But Its not working.
I can't find the reason behind it. Please tell me where is the issue.
To Hide Buttons
if (!IsPostBack)
{
ButtonReplaceId.Style.Add("display", "none");
ButtonAssociateRules.Style.Add("display", "none");
}
To display buttons
protected void ApplyAssociation(object sender, EventArgs e)
{
//Some piece of code
if(a==0)
{
ButtonAssociateRules.Style.Add("display", "block");
ButtonReplaceId.Style.Add("display", "block");
}
}
aspx for buttons
<div style ="padding-left:400px;">
<asp:Button ID="ButtonAssociateRules" runat="server" OnClick="AssociateMultipleRulesButtonClick"
CssClass="search_button_in_vm_intersection" Text="Associate Multiple Rules"
OnClientClick="return OnClientClickAssociateRewardRuleFile();" />
<asp:Button ID="ButtonReplaceId" runat="server" OnClick="ApplyReplaceIfRuleIntersects"
CssClass="search_button_in_vm_intersection" Text="Replace Previous Rules"
OnClientClick="return OnClientClickReplaceRewardRuleFile();" />
</div>
aspx of button for OnClick event ApplyAssociation()
<asp:UpdatePanel runat="server" UpdateMode="Conditional">
<Triggers>
<asp:AsyncPostBackTrigger ControlID="Button1" EventName="Click" />
</Triggers>
<ContentTemplate>
<asp:Table runat="server" CssClass="rule_file_whole" BorderWidth="0" Style="padding-top: 30px;">
<asp:TableRow ID="MerchantRowAssociation" HorizontalAlign="Center">
<asp:TableCell>
<div style="text-align: center">
<asp:Button ID="AssociationMerchant" Text="Apply Association" runat="server" OnClick="ApplyAssociation"
CssClass="search_button_in_vm_associate1 " OnClientClick="return checkValidation()" />
</div>
</asp:TableCell>
</asp:TableRow>
</asp:Table>
</ContentTemplate>
</asp:UpdatePanel>

Seeing as you are using a conditional update panel, you can try either of these after putting the buttons inside an update panel.
protected void ApplyAssociation(object sender, EventArgs e)
{
//Some piece of code
if (a == 0)
{
ButtonAssociateRules.Style["visibility"] = "hidden";
ButtonReplaceId.Style["visibility"] = "hidden";
myUpdatePanel.Update();
}
}
protected void ApplyAssociation(object sender, EventArgs e)
{
//Some piece of code
if (a == 0)
{
ButtonAssociateRules.Visible = false;
ButtonReplaceId.Visible = false;
myUpdatePanel.Update();
}
}
Here's an example of your buttons inside an update panel.
<asp:UpdatePanel ID="myUpdatePanel" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<div style="padding-left:400px;">
<asp:Button ID="ButtonAssociateRules" runat="server" OnClick="AssociateMultipleRulesButtonClick"
CssClass="search_button_in_vm_intersection" Text="Associate Multiple Rules"
OnClientClick="return OnClientClickAssociateRewardRuleFile();" />
<asp:Button ID="ButtonReplaceId" runat="server" OnClick="ApplyReplaceIfRuleIntersects"
CssClass="search_button_in_vm_intersection" Text="Replace Previous Rules"
OnClientClick="return OnClientClickReplaceRewardRuleFile();" />
</div>
</ContentTemplate>
</asp:UpdatePanel>

You can simple use the Visible property of Button which is more straight forward and clean.
ButtonReplaceId.Visible = false;
If this property is false, the server control is not rendered. You
should take this into account when organizing the layout of your page.
If a container control is not rendered, any controls that it contains
will not be rendered even if you set the Visible property of an
individual control to true. In that case, the individual control
returns false for the Visible property even if you have explicitly set
it to true. (That is, if the Visible property of the parent control is
set to false, the child control inherits that setting and the setting
takes precedence over any local setting.) MSDN.
You are trying to change the state of control in ajax call that is not in current UpdatePanel. Put the buttons in the same UpdatePanel then you will be able to change the state.

ButtonReplaceId.Visible = false;
ButtonAssociateRules.Visible = false;

Update panel with textbox values when button clicked

I am still learning the basics of C# so any help would be appreciated. I have a series of asp:TextBox's. In the code behind, I am getting the value of these boxes. Is there a way to have a panel hidden until a user clicks submit then have the values display?
Here is the HTML for one of the boxes and the panel:
<asp:TextBox ID="txtTitle" runat="server></asp:TextBox>
<asp:Panel ID="PDFPanel" runat="server"></asp:Panel>
The button:
<asp:Button ID="btn_Submit" runat="server" Text="Button" OnClick="btnSubmit"/>
and the code-behind for it:
string Title = txtTitle.Text;
public void btnSubmit(Object sender, EventArgs e)
{
}
There are about 50 fields, so I am not showing all of it but if I can get direction on one I can replicate for the rest. Please let me know if I need to show any additional code
I am sorry if this is simple, but like I said, I am still an entry level developer. Thanks in advance!

Unless I've misunderstood what you're asking, this should be fairly simple.
<asp:Panel ID="PDFPanel" runat="server" Visible="False">
<div>
<asp:Literal id="litTitle" runat="server" />
</div>
</asp:Panel>
then in your click method:
litTitle.Text = txtTitle.Text;
PDFPanel.Visible = true;

Set the Panel's visibility to false by default
<asp:Panel ID="PDFPanel" runat="server" Visible="false">
<asp:TextBox ID="txtTitle" runat="server"></asp:TextBox>
</asp:Panel>
then on the Button's click event set the visibility to true
public void btnSubmit(Object sender, EventArgs e)
{
PDFPanel.Visible = true;
// do something else...
}

Finding Div present inside the data list on runtime

I need to find the div which belongs my current clicked Link button from the code behind file in c#. Then i need to apply the class for that div. So far i tried to access by html table cell. But i cant able to access my div. So please any valuable suggestion to find the div?
<asp:DataList ID="DataList1" runat="server" OnItemCommand="DataList1_ItemCommand" style="width:100%">
<ItemTemplate>
<div runat="server" id="DivContent" style="padding-top: 25px; height: 65px;" align="center"
onmouseover="this.className='MsgClick'" onmouseout="this.className=''" >
<asp:LinkButton ID="LinkButton2" runat="server" Text='<%# Eval("UserName") %>' CommandName="show"
class="InnerMenuFont"></asp:LinkButton>
<asp:Label ID="Label1" runat="server" Text='<%# Eval("AdminId") %>' Visible="False"></asp:Label>
<br />
</div>
<hr style="width: 80%" />
</ItemTemplate>
</asp:DataList>
In the above code i need to access the current div in the id "DivContent"
.MsgClick
{
background-image: url('Images/AdminHighlight.png');
background-repeat: no-repeat;
vertical-align: top;
margin-right: -38px;
padding-right: 30px;
}
above code is my class file.

use below code
Control objDiv = e.Item.FindControl("DivContent");
hope it will help you

Might be wrong, but I don't believe it's possible to access a div from code behind if the div is part of a data bound control (DataList, GridView, etc), even if you have runat="server" set.
You can however swap the div for asp:Panel - which renders as a div when the page is served up to the browser. e.g.
<asp:Panel ID="DivContent" runat="server">
div content... LinkButton, Label etc...
</asp:Panel>
When the LinkButton is clicked, you can find the asp:Panel in your code behind using the item index of the DataList to which the LinkButton belongs:
LinkButton OnClick event:
protected void LinkButton2_Click(object sender, EventArgs e)
{
// Get the Link Button which has been clicked.
LinkButton btn = (LinkButton)sender;
// Get the DataListItem in the DataList which contains the LinkButton which was clicked.
DataListItem listItem = (DataListItem)btn.NamingContainer;
// Get the ItemIndex of the DataListItem.
int itemIndex = listItem.ItemIndex;
// Find the asp:Panel in the DataListItem of the DataList (e.g. DataList1).
Panel currentPanel = (Panel)DataList1.Items[itemIndex].FindControl("DivContent");
}
You should then hopefully be able to change style settings form code behind.
You could possibly use the CssClass property to change what you need:
...
Panel currentPanel = (Panel)DataList1.Items[itemIndex].FindControl("DivContent");
currentPanel.CssClass = "NewClassName";

Just did this myself good sir. There is a much simpler solution!
From your c# code behind, a div would be refereed to as type HtmlGenericControl.
You will need to add a onitemdatabound="DataList1_ItemDataBound" to your DataList control markup.
Inside your itemdatabound event you can modify the div.
protected void DataList1_ItemDataBound(object sender, DataListItemEventArgs e)
{
// Find the div control as htmlgenericcontrol type, if found apply style
System.Web.UI.HtmlControls.HtmlGenericControl div = (System.Web.UI.HtmlControls.HtmlGenericControl)e.Item.FindControl("DivContent");
if(div != null)
div.Style.Add("border-color", "Red");
}

Cloning AJAX TabPanels

I have come across an interesting problem when trying to clone a template panel in my ajax tabcontainer control.
The idea is that i have a custom control on the first tab that lists some things, and to add a new thing you click the new button on the custom control, which raises an event in the control / page that contains the tabcontainer. That control / page then goes about cloning the hidden tabpanel and adding the clone to the tabcontainer.
with this markup I get what I need from both the first tab (containing the list) and any subsequent tabs (templated by the hidden tabpanel ready for cloning) ...
<asp:TabContainer ID="TabContainer1" runat="server">
<asp:TabPanel ID="ui_pnl1" HeaderText="My Panel" runat="server">
<ContentTemplate>
<cc1:myListOfThings ID="list" runat="server" OnMyEvent="CreateTabFromTemplate" />
</ContentTemplate>
</asp:TabPanel>
<asp:TabPanel ID="TemplatePanel" runat="server" Visible="false">
<HeaderTemplate>
<span>Hello World</span><asp:LinkButton ID="ui_btnRemove" runat="server" Text="x" />
</HeaderTemplate>
<ContentTemplate>
Some content for my panel
</ContentTemplate>
</asp:TabPanel>
</asp:TabContainer>
Ok now lets assume that on the first panel in my custom control i have a button that raises the "MyEvent" event which in turn calls the method "CreateTabFromTemplate".
Now what I want to do is copy the hidden panel "TemplatePanel" and add it to the tab container.
In my code behind, the method code for adding the new tab panel to my tab container works something like this ...
protected void CreateTabFromTemplate(object sender, EventArgs e)
{
// create a new tab panel
TabPanel newPanel = new TabPanel();
// instantiate the hidden content template from the hidden note panel in the new panel
ui_tpNoteCreator.ContentTemplate.InstantiateIn(newPanel);
// add the panel to the available tabs and select it
TabContainer1.Tabs.Add(newPanel);
TabContainer1.ActiveTab = newPanel;
}
All looking good so far ... but i missed something ... I haven't templated the new tabpanels header ... it seems that all I can do is set the text.
Following this example : http://forums.asp.net/t/1108611.aspx/1 I can do what i'm trying to do but I don't want to write a class that defines my header template I want to instantiate an instance of my markup version and pass that instance to my new panel.
I'm not convinced this can be done ... is this a bug with the control or did i miss something ?!?!
Any ideas?

It turns out i was going about it the wrong way ...
Essentially theres a difference between assigning templates and the databinding process, it's still not perfect because of the data im trying to pass in to my tab templates but here's the basic principal ...
Markup :
<asp:TabContainer ID="TabContainer1" runat="server">
<asp:TabPanel ID="ui_pnl1" HeaderText="My Panel" runat="server">
<ContentTemplate>
<cc1:myListOfThings ID="list" runat="server" OnMyEvent="CreateTabFromTemplate" />
</ContentTemplate>
</asp:TabPanel>
<asp:TabPanel ID="TemplatePanel" runat="server" Visible="false">
<HeaderTemplate>
<span>Hello World</span><asp:LinkButton ID="ui_btnRemove" runat="server" Text="x" />
</HeaderTemplate>
<ContentTemplate>
Some content for my panel
</ContentTemplate>
</asp:TabPanel>
</asp:TabContainer>
Code behind :
protected void CreateTabFromTemplate(object sender, EventArgs e)
{
// create a new tab panel
TabPanel newPanel = new TabPanel();
newPanel.HeaderTemplate = TemplatePanel.HeaderTemplate;
newPanel.ContentTemplate = TemplatePanel.ContentTemplate;
// add the panel to the available tabs and select it
TabContainer1.Tabs.Add(newPanel);
TabContainer1.ActiveTab = newPanel;
}
protected void TabContainer_DataBinding(object sender, EventArgs e)
{
foreach(TabPanel panel in TabContainer.Tabs)
{
//identify if this is the correct tab
if(correctTab)
{
// this will find a control anywhere on the panel (eg in both header and content templates)
Label label = panel.FindControl("ControlID") as Label;
label.Text = "Some Business Object Value";
}
}
}

I just tested the following which works as far as I can tell.
Markup:
<asp:TabContainer ID="TabContainer1" runat="server" ViewStateMode="Enabled">
<asp:TabPanel ID="ui_pnl1" HeaderText="My Panel" runat="server">
<ContentTemplate>
<asp:Button ID="btnAddPanel" runat="server" Text="Add Panel" />
</ContentTemplate>
</asp:TabPanel>
<asp:TabPanel ID="TemplatePanel" runat="server" Visible ="false">
<HeaderTemplate>
<span>Hello World</span><asp:LinkButton ID="ui_btnRemove" runat="server" Text="X" />
</HeaderTemplate>
<ContentTemplate>
<p>Test Content</p>
</ContentTemplate>
</asp:TabPanel>
</asp:TabContainer>
Code behind:
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
this.btnAddPanel.Click += new EventHandler(btnAddPanel_Click);
}
void btnAddPanel_Click(object sender, EventArgs e)
{
TabPanel newPanel = new TabPanel();
newPanel.HeaderTemplate = TemplatePanel.HeaderTemplate;
TemplatePanel.ContentTemplate.InstantiateIn(newPanel);
TabContainer1.Tabs.Add(newPanel);
TabContainer1.ActiveTab = newPanel;
}
}