Use of Dynamic Keyword in .Net 3.5

Question

I have written this code in visual studio 2013 utilizing .net v4.5. The problem I am having is that I am now having to drop down to .net v3.5 and the dynamic keyword is throwing an error as missing an assembly reference. Is there an equivalent type to 'dynamic' in .net v3.5 or a way for me to achieve the same results as below?

I thought I may have found my answer here, but var is throwing errors when I add the .Attributes or .Text property modifications.

private void CreateControl<T>(string objText,
                              Panel pnl,
                              string HTMLTag = "<td>",
                              string applicantID = "",
                              EventHandler hndl = null)
{
    pnl.Controls.Add(new LiteralControl(HTMLTag));
    dynamic obj = Activator.CreateInstance(typeof(T));
    obj.Text = objText;

    if (applicantID != string.Empty)
    {
        obj.Attributes.Add("ApplicantID", applicantID);
    }
    if (hndl != null)
    {
        obj.Click += new EventHandler(hndl);
    }

    pnl.Controls.Add(obj);
    pnl.Controls.Add(new LiteralControl(HTMLTag.Insert(1, "/")));
}

Answer 1

Instead of trying to hack this together in some bound to fail way and since there isn't a 'dynamic' control in .net v3.5, I have instead decided to just completely forgo this method and wrote some overloads instead. This way seems safer at this point; works the same, just a bit more code...

    #region CreateControl() Overloads
            /// <summary>
            /// Creates a LinkButton control.
            /// </summary>
            /// <param name="objText">.Text property of this LinkButton control.</param>
            /// <param name="pnl">Panel this control will be attached to.</param>
            /// <param name="hndl">Event handler attached to this LinkButton control.</param>
            /// <param name="HTMLTag">Opening tag used to contain this control.</param>
            private void CreateControl(string objText,
                                       Panel pnl,
                                       EventHandler hndl,
                                       string HTMLTag)
            {
                pnl.Controls.Add(new LiteralControl(HTMLTag));
                LinkButton obj = new LinkButton();
                obj.Text = objText;
                obj.Click += new EventHandler(hndl);

                pnl.Controls.Add(obj);
                pnl.Controls.Add(new LiteralControl(HTMLTag.Insert(1, "/")));
            }
            /// <summary>
            /// Creates a Label control.
            /// </summary>
            /// <param name="objText">.Text property of this Label control.</param>
            /// <param name="pnl">Panel this control will be attached to.</param>
            /// <param name="HTMLTag">Opening tag used to contain this control.</param>
            private void CreateControl(string objText,
                                       Panel pnl,
                                       string HTMLTag)
            {
                pnl.Controls.Add(new LiteralControl(HTMLTag));
                Label obj = new Label();
                obj.Text = objText;

                pnl.Controls.Add(obj);
                pnl.Controls.Add(new LiteralControl(HTMLTag.Insert(1, "/")));
            }
            /// <summary>
            /// Creates the specified literal control.
            /// </summary>
            /// <param name="ControlText">HTML text containing instructions for creating the desired literal control.</param>
            /// <param name="pnl">Panel this literal control will be attached to.</param>
            private void CreateControl(string ControlText, 
                                       Panel pnl)
            {
                pnl.Controls.Add(new LiteralControl(ControlText));
            }
        #endregion