Problem with RadComboBox with ItemTemplate of asp:TextBox

I am using a RadComboBox with an ItemTemplate that contains 50 TextBox controls that a user can enter information into. I add the 50 TextBox controls dynamically (see below). When information is entered into the textboxes, it appears that everything is working as expected. However, when I iterate the collection of TextBoxes, the data is not there. Here is my code:

aspx page:

<telerik:RadComboBox ID="ddlListItemsQ1" runat="server" Width="200px" ShowDropDownOnTextboxClick="true" EnableEmbeddedSkins="false" Skin="Classic" TabIndex="2" ZIndex="100" disabled="true" OnClientDropDownOpening="OnDropdownListItemsOpening">
    <ItemTemplate>
        <asp:TextBox ID="txtBoxQ1" runat="server" Width="160"/>
    </ItemTemplate>
</telerik:RadCombo开发者_开发知识库Box>

Load textboxes:

private void LoadDropdownListItems()
{
    int itemCount = 0;
    while (itemCount < 50)
    {
        ddlListItemsQ1.Items.Add(new RadComboBoxItem());
        itemCount++;
    }                
}

Examine collection:

RadComboBox ddlListItems = (RadComboBox)FindControl("ddlListItemsQ1");

IList<RadComboBoxItem> iList = ddlListItems.Items;
foreach (RadComboBoxItem rcbi in iList)
{
    if (rcbi.Text.Length > 0)
        return true;
}

Nothing is in any of the textboxes. For example, if I've entered text into 2 of the 50, I should get a "true" returned on the first one it comes across. When I debug and look at the collection - there is nothing stored in ANY of the textboxes even though in the UI, there are two with data. I must be missing something...

Your for loop is checking rcbi.Text but that is the Text of the RadComboBoxItems that you added to the combo box....which is different than the text that is in the TextBox that you placed as part of the ItemTemplate. Change your for loop to this and it should work:

IList<RadComboBoxItem> iList = ddlListItems.Items;
foreach (RadComboBoxItem rcbi in iList)
{
    //Find the inner textbox placed by the ItemTemplate
    var innerTextBox = (TextBox)rcbi.FindControl("txtBoxQ1");

    /Check the textbox's Text property
    if (innerTextBox.Text.Length > 0)
        return true;
}