Return that bold line output

Question

Please find below the C# code,

 

public static void RedirectAndPOST(Page page, string destinationUrl, NameValueCollection data)

{

//Prepare the Posting form

string strForm = PreparePOSTForm(destinationUrl, data);

//Add a literal control the specified page holding the Post Form, this is to submit the Posting form with the request.

page.Controls.Add(new LiteralControl(strForm)); -----> Getting error in this line

}private static String PreparePOSTForm(string url, NameValueCollection data)

{

//Set a name for the form

string formID = "RedirectForm";

//Build the form using the specified data to be posted.

StringBuilder strForm = new StringBuilder();

strForm.Append("<form id=\"" + formID + "\" name=\"" + formID + "\" action=\"" + url + "\" method=\"POST\">");

foreach (string key in data)

{

strForm.Append("<input type=\"hidden\" name=\"" + key + "\" value=\"" + data[key] + "\">");

}

strForm.Append("</form>");

//Build the JavaScript which will do the Posting operation.

StringBuilder strScript = new StringBuilder();

strScript.Append("<script language='javascript'>");

strScript.Append("var v" + formID + " = document." + formID + ";");

strScript.Append("v" + formID + ".submit();");

strScript.Append("</script>");

//Return the form and the script concatenated. (The order is important, Form then JavaScript)

return strForm.ToString() + strScript.ToString();

}

 

getting Error as An object reference is required for the non static field,method or property 'Control.Controls'