Question

Now that i’ve been MVCing for quite sometime i decide to pop some classic C# .Net into my 8 track and have gotten the following issue:

I have a TextBox WebControl on my aspx page that in the code behind i want to simply append a LiteralControl after it.

This doesn’t work:

TextBoxAge.Controls.Add(new LiteralControl("Invalid Age."));

This works but all the way at the bottom:

TextBoxAge.Controls.Parent.Add(new LiteralControl("Invalid Age."));

Can you help me!?

For example the HTML will show:

<div>
<input name="TextBoxAge" type="text" id="TextBoxAge" class="Age">
Invalid Age.
</div>

This should be purely dynamic and relative to the control at hand.

Solution:

TextBoxAge.Parent.Controls.AddAt(TextBoxAge.Parent.Controls.IndexOf(T‌​extBoxAge),new LiteralControl("<span>Invalid Age.</span>"));

Answer 1

Maybe you can try something like this. (Don’t remember if AddAt will replace the control at the specified index )

var textBoxAgeIndex = TextBoxAge.Parent.Controls.IndexOf(TextBoxAge);

TextBoxAge.Parent.Controls.AddAt(textBoxAgeIndex +1, new LiteralControl("Invalid Age."));

Hope this will help