Checking for the control type

Question

I am able to get the IDs of all the controls of a page and also their type, in the page when i print it it shows

myPhoneExtTxt Type:System.Web.UI.HtmlControl         


        

Answer 1

This should be all you need if I get what you're asking:

if (c is TextBox)
{
  ((TextBox)c).Text = "This should be the new text";
}

If your primary goal is to just set some text:

if (c is ITextControl)
{
   ((ITextControl)c).Text = "This should be the new text";
}

In order to support a hidden field as well:

string someTextToSet = "this should be the new text";
if (c is ITextControl)
{
   ((ITextControl)c).Text = someTextToSet;
}
else if (c is HtmlInputControl)
{
   ((HtmlInputControl)c).Value = someTextToSet;
}
else if (c is HiddenField)
{
   ((HiddenField)c).Value = someTextToSet;
}

Additional controls/interfaces would have to be added to the logic.