Juice UI - Textbox inside accordion issue

Question

I'm unable to retrieve the content of a textbox that's inside an accordion panel. My markup is as follows:

<juice:Accordion ID="Accordion1" runat="server">

<juice:AccordionPanel ID="AccordionPanel1" runat="server" Title="Media ID">
<PanelContent>
  <asp:Label ID="LabelMediaID" runat="server" Text="Media ID"     AssociatedControlID="TextBoxMediaID"></asp:Label>    
  <asp:TextBox ID="TextBoxMediaID" runat="server"></asp:TextBox>
</PanelContent>
</juice:AccordionPanel>

My server side code is triggered when the user clicks a button:

protected void ButtonSearch_Click(object sender, EventArgs e)
{
    // Retrieve controls within accordion panels
    TextBox TextBoxMediaID = (TextBox)AccordionPanel1.FindControl("TextBoxMediaID");
    string mediaID= "abc";
    if (TextBoxMediaID != null)
        mediaID= TextBoxMediaID.Text;

I'm able to successfully retrieve my textbox control but when I try to access its Text property it's always empty.

Can someone help me? I'm afraid I'm reasonably new to the world of ASP.NET, Juice etc. Thanks.

Answer 1

Option 1 - Quick fix

For your page, make ClientIDMode="static" in page directive and then use Request.Form["TextBoxMediaID"] to get value of your text box.

Option 2 - Debug

Go to debug mode and try AccordionPanel1.Controls[0].("TextBoxMediaID"); or AccordionPanel1.Controls[0].Controls[0].("TextBoxMediaID"); because you don't know how many server side controls are there. Simple solution would be to use find control recursive function.

Answer 2

It turned out that my problem was caused by having an ASP.NET project that used master pages.

If you're not using master pages then

TextBox TextBox1 = (TextBox)AccordionPanel1.FindControl("TextBox1");
string content= Request.Form[TextBox1.UniqueId];

works perfectly. However, when using a master page with a ContentPlaceHolder then use the following code:

ContentPlaceHolder cph = (ContentPlaceHolder)Master.FindControl("MainContent");
TextBox TextBox1 = (TextBox)AccordionPanel1.FindControl("TextBox1");
string content= Request.Form[cph.UniqueID + "$" + TextBox1.UniqueId];

Hopefully this will save someone a lot of time!