Dynamic Data in Accordion Control

Hi guys,

I'm trying to populate dynamic data into the AJAX Accordion control. What I want is values taken from my db and posted into the Accordion panels (perhaps 20 to 30 panels per page). I can manage the paging issue (page 1, page 2, page 3 etc.) but how do I take a value from the database, place it in the header, then pick another column from the same row and place it into content, and then move onto the next row?

Any ideas?

Hello,

I made some study,

I could add dynamically it's header and content through the code.

Anyway, it works for me. if contents are simple I think O.K.

Following test code was in the Page_Load event. (VB, but code is very simple for C# to read)

Dim acdAs AjaxControlToolkit.Accordion =Me.FindControl("Accordion2")Dim pAs New AjaxControlToolkit.AccordionPaneDim lAs New Label l.Text ="content test"Dim l2As New Label l2.Text ="header test"Dim inpAs New HtmlInputButton("image")With inp .ID ="myImage_2" .Attributes.Add("src","../images/4-0.gif")End With p.HeaderContainer.Controls.Add(l2) p.HeaderContainer.Controls.Add(inp) p.ContentContainer.Controls.Add(l) acd.Panes.Add(p)

Thanks mate.

It makes sense, but I'm ending up with an error using the exact same code that you provided At runtime:

Server Error in '/' Application.

---

Object reference not set to an instance of an object.

Description:An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details:System.NullReferenceException: Object reference not set to an instance of an object.

Source Error:

Line 24: Line 25:Line 26: acd.Panes.Add(p)

Any idea what seems to be going wrong here?

Okies i think I've worked this out. For some reason My.FindControl wasn't working for me so I changed the code to this instead:

Protected Sub Page_Load(ByVal senderAs Object,ByVal eAs System.EventArgs)Dim pAs New AjaxControlToolkit.AccordionPaneDim hAs New Label h.Text ="header text"Dim cAs New Label c.Text ="container text" p.HeaderContainer.Controls.Add(h) p.ContentContainer.Controls.Add(c) Accordion1.Panes.Add(p) Application("prodtype") = ProductTypeList.SelectedItem.TextEnd Sub

A reference directly to the Accordion control id helped. Many thanks for the help.

Cheers!

Dynamic Control creation not persisting through PostBack

Hey guys,

I've done some searching on dynamic control creation in the forums, but none of them take me to an Atlas page. I'm trying to build a HR Notification form with some simple Atlas UpdatePanels. Basically, I want to dynamically add Labels and TextBoxes to this form. For instance, if you select 3 from the Number of Children DDL, I want 3 child forms to be created under it. I've been able to create the forms (at least theoretically, I just create "test" Labels right now). The problem I'm running into is being able to read from these dynamically created Controls.

When I submit the form as a regular PostBack, all of my created labels seem to be lost. I get null exceptions when I try to use FindControl. Here are some code snippets:

protected void ddlNumChildren_SelectedIndexChanged(object sender, EventArgs e) {int runNum = Convert.ToInt32(ddlNumChildren.SelectedValue.ToString());int count = 0;while (count < runNum) { Label text=new Label(); text.ID ="testLabel" + count; text.Text ="test"; phNumChildren.Controls.Add(text); count++; } }protected void btnSubmit_Click(object sender, EventArgs e) {int runNum = Convert.ToInt32(ddlNumChildren.SelectedValue.ToString());int count = 0;while (count < runNum) { Label lbltest = phNumChildren.FindControl("testLabel" + count)as Label; Response.Write(lbltest.Text); } }

I'm assuming I have to save this data before the postback, but I need a little help in how I can do this. Thanks for your time and any help you can provide.

The problem is that the controls do not exist when the page is recreated during postback. You have two options :
1) Recreate the page during the Init() event if you have atlas UpdatePanels or Page_Load() if not
2) try http://www.denisbauer.com/ASPNETControls.aspx
3) Write your own code to save all controls in ViewState and reload them during the Init() event

DropDownExtender breaks the XP theme of TextBox

Guys I have problem with DropDownExtender which extends TextBox control.

Step 1. Before mouse is over the TextBox:

Step 2. Mouse is over the TextBox:

Step 3: Mouse is out of TextBox:

As you can see TextBox has become old-style designed. Any advice is appreciated

Hi,

I've tested it,didn't run into the same probem.

If you haven't resolved the problem yet,please feel free to provide us with a repro of it.

Thanks

We are marking this issue as "Answered". If you have any new findings or concerns, please feel free to unmark the issue.