Get content of a textbox within an Item termplate

[Clive Hoggar]

Hi
I have looked at the docs and found the example a bit obscure, and have searched the forum posts,
and I am still struggling to come up with the right VB code to read the text box values.
Here is how they are nested:

<telerik:RadPanelBar ID="RadPanelBar1" Runat="server">

<Items>

<telerik:RadPanelItem runat="server" Text="ContactDetails">

<Items>

<telerik:RadPanelItem runat="server" Text="">

<ItemTemplate>

<telerik:RadTextBox ID="RadTextBoxEmail" Runat="server">

</telerik:RadTextBox>

(more text boxes)              </ItemTemplate>           </telerik:RadPanelItem>        </Items>        </telerik:RadPanelItem>   (more RadPanelItems)   </Items> </telerik:RadPanelBar)

So exactly how do I get the content of the TextBox into my code
so that I can save it to a database etc.?

Thanks for all your great support guys

Clive

[Paul]

Hi Clive,

Please find below a sample code snippet that shows the needed approach.

ASPX:

<form id="form1" runat="server">
<telerik:RadScriptManager ID="RadScriptManager1" runat="server">
</telerik:RadScriptManager>
<telerik:RadPanelBar ID="RadPanelBar1" runat="server">
<Items>
    <telerik:RadPanelItem runat="server" Text="ContactDetails">
    <Items>
        <telerik:RadPanelItem runat="server" Value="templateHolder">
        <ItemTemplate>
            <telerik:RadTextBox ID="RadTextBoxEmail" runat="server">
            </telerik:RadTextBox>
            (more text boxes)
        </ItemTemplate>
        </telerik:RadPanelItem>
    </Items>
    </telerik:RadPanelItem>
</Items>
</telerik:RadPanelBar>
<asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
<asp:Button ID="Button1" runat="server" Text="Button" OnClick="Button1_Click" />
</form>

Code-behind:

Imports Telerik.Web.UI

Partial Class Default2
    Inherits System.Web.UI.Page

    Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim txtbox As RadTextBox = DirectCast(RadPanelBar1.FindItemByValue("templateHolder").FindControl("RadTextBoxEmail"), RadTextBox)
        Label1.Text = txtbox.Text
    End Sub
End Class

Greetings,
Paul
the Telerik team

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[Ana]

Hi Paul,

Your code snippet is not working when the content of the text box originally assigned a value by a data bind in page load event.

Please check this scenario:

1.  ASPX code is exactly what had given. No changes to it. You can use as is.

2. Please use the following page load event code ( it is in C#). In this event code, I am originally assigning a content to the text box.

protected void Page_Load(object sender, EventArgs e)
{
RadTextBox txtbox = (RadTextBox)(RadPanelBar1.FindItemByValue("templateHolder").FindControl("RadTextBoxEmail"));
txtbox.Text = "Telerik";
} 

3. Now use the below code for the Button1 Click event.

protected void Button1_Click(object sender, EventArgs e)
{

RadTextBox txtbox = (RadTextBox)(RadPanelBar1.FindItemByValue("templateHolder").FindControl("RadTextBoxEmail"));
Label1.Text = txtbox.Text;
}

4. Run the debugger.  During the page load, the Textbox.Text you see as "Telerik".  Upto this part everything is fine.   Now change the text box content to something else and click on Submit button.  The modified content will be erased and displays the original Text which is "Telerik".

So basically, the Label1.Text is always the Original assigned Text during the page load event.  It will never get changed no matter you change the content of it. 

Can you please proive me the solution?

Thank you.

[Ana]

At last I am able to resolve this issue. Hope it may helpful to others.

I can retain the textbox content by making a small change in Page Load event. Since the text box content get lost after post back, I retained that content by adding !IsPost in page load event code.

​protected void Page_Load(object sender, EventArgs e)
{
If(!IsPostback)
{
RadTextBox txtbox = (RadTextBox)(RadPanelBar1.FindItemByValue("templateHolder").FindControl("RadTextBoxEmail"));
txtbox.Text = "Telerik";
}
}