Convert controls dynamically from strings - asp.net

Question

I want to disable some controls on my asp page from a ControlCollection.
This is my code.
foreach (System.Web.UI.Control c in ControlCollection)
{
if (c.GetType().FullName.Equals("System.Web.UI.WebControls.Table"))
{
TableRow t = (TableRow)c;
t.Enabled = false;
}
else if (c.GetType().FullName.Equals("System.Web.UI.WebControls.TextBox"))
{
TextBox t = (TextBox)c;
t.Enabled = false;
}
.......
......
///Like this I do for all controls
}
I need a better approach at this. I searched on Internet but didn't find any solution.

Answer 1

You can use the .OfType<> extension like this in order to have more elegant code:
collection.OfType<Table>().ToList().ForEach(c => c.Enabled = false);
collection.OfType<TextBox>().ToList().ForEach(c => c.Enabled = false)

Answer 2

Do all controls in your list inherit from System.Web.UI.WebControl? If so, than this code may help. (Didn't test it myself)
Type wc = new System.Web.UI.WebControls.WebControl(HtmlTextWriterTag.A).GetType();
foreach (System.Web.UI.Control c in ControlCollection)
{
if (c.GetType().IsSubclassOf(wc))
{
((System.Web.UI.WebControls.WebControl)c).Enabled = false;
}
}
And even more elegant (thanx to Shadow Wizard )
ControlCollection.OfType<System.Web.UI.WebControls.WebControl>().ToList().ForEach(c => c.Enabled = false);

Answer 3

Try to use is.
if (c is Table)
{
}
else if (c is TextBox)
{
}
Or consider doing a switch statement on the type name.
switch (c.GetType().Name.ToLower())
{
case "table":
break;
case "textbox":
break;
}