Error in multiple Panes under a single Tab control

Extending Umbraco

Hi All,

I am trying to add multiple Panes under a single Tab control for my custom section
But its showing the following error

Server Error in '/' Application.

Value cannot be null.
Parameter name: child

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.ArgumentNullException: Value cannot be null.
Parameter name: child

Source Error:


An unhandled exception was generated during the execution of the current
 web request. Information regarding the origin and location of the 
exception can be identified using the exception stack trace below.

Stack Trace:


[ArgumentNullException: Value cannot be null.
Parameter name: child]
   System.Web.UI.ControlCollection.Add(Control child) +9601355
   CustomUmbracoSection.test1.OnInit(EventArgs e) +191
   System.Web.UI.Control.InitRecursive(Control namingContainer) +134
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +489

Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.17929

And my code some what looks like this

                    <cc1:Pane ID="Pane1" runat="server" Height="600px" Width="330px">
                        <cc1:PropertyPanel runat="server" ID="pp_sample1" >
                            NIsh
                        </cc1:PropertyPanel>

                    </cc1:Pane>
                    <cc1:Pane ID ="Pane2" runat="server" Height="600px" Width="330px">
                        <cc1:PropertyPanel runat="server" ID="pp_sample2" >
                            NIsh2
                        </cc1:PropertyPanel>
                    </cc1:Pane>

        protected override void OnInit(EventArgs e)
        {
            base.OnInit(e);

            // Tab setup
            FirstTab = tabControl.NewTabPage("First");
            FirstTab.Controls.Add(Pane1);
            FirstTab.Controls.Add(Pane2);

            //save button
            ImageButton save = FirstTab.Menu.NewImageButton();
            save.Click += new ImageClickEventHandler(this.save_click);
            save.AlternateText = "Save";
            save.ImageUrl = GlobalSettings.Path + "/images/editor/save.gif";

        }

This is what i am searching for, two panes under one tab.

Thanks in Advance

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Amit 6 posts 26 karma points

May 15, 2013 @ 09:37

0

Hi Guys,

Got the solution, the aspx was getting copied to a different folder in the post build event.

Anyways thanks.

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Error in multiple Panes under a single Tab control

Server Error in '/' Application.

Value cannot be null.Parameter name: child

Value cannot be null.
Parameter name: child