Error when creating a panel dynamically in ASP.NET

Question

I'm creating a panel in order to fill it up with some controls but i got error when i try to write its properties.

My code:

public partial class _Default : System.Web.UI.Page
{

      Panel pbx;
        protected void Page_PreInit(object sender, EventArgs e)
        {
            //Create a Dynamic Panel
            pbx = new Panel();
            pbx.ID = "pbx";
            pbx.BorderWidth = 1;
            pbx.Width = 300;
            this.form1.Controls.Add(pbx);
        }

//some other functions
}

Visual Studio 2012 underlines "ID", "BorderWidth" and "Width" words, so i cant run the project. one of errors is like this:

'simplePanel.Panel' does not contain a definition for 'BorderWidth' and no extension method 'BorderWidth' accepting a first argument of type 'simplePanel.Panel' could be found (are you missing a using directive or an assembly reference?)

edit: I can create a textbox or label with no problem. But not a panel.

Michael Liu · Accepted Answer · 2013-08-31 18:47:25Z

2

There is a class called simplePanel.Panel which conflicts with System.Web.UI.WebControls.Panel (which I assume is what you are trying to reference). If your _Default class is in the simplePanel namespace as well, then you need to fully qualify the references to Panel so that the compiler knows which one you mean:

public partial class _Default : System.Web.UI.Page
{
    System.Web.UI.WebControls.Panel pbx;
    protected void Page_PreInit(object sender, EventArgs e)
    {
        //Create a Dynamic Panel
        pbx = new System.Web.UI.WebControls.Panel();

edited Aug 31, 2013 at 18:47

answered Aug 31, 2013 at 18:32

Michael Liu

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3 Comments

postgresnewbie Over a year ago

that didn't work. i paste your code at the top but nothing changed.

Michael Liu Over a year ago

@AliSağırvelioğulları: Is your _Default class inside a namespace, or is public partial class _Default really the first line in the file?

postgresnewbie Over a year ago

it's in simplePanel namespace.

Joel · Accepted Answer · 2013-10-10 14:41:22Z

0

Set the width like this:

pbx.Width = new Unit("300px");

It will help you out to cover the situation.

edited Oct 10, 2013 at 14:41

Joel

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answered Oct 10, 2013 at 13:47

zeeshanbeyg

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