You Can’t Do That On Television

ASP.NET Classic Controls – Grid Forum – asp:Checkbox in FormTemplate. “Specified Cast is Invalid” .

From Fabian Schulz:

I ran across the same problem and have created a simple solution, which is most easy to use:

Create a usercontrol with the following code:

myCheckbox.ascx:

myCheckbox.ascx.cs:
public partial class Controls_myCheckBox : System.Web.UI.UserControl
{

private bool m_checked = false;

public object Checked
{
get { return m_checked; }
set
{
if (value.GetType() == DBNull.Value.GetType())
m_checked = false;
else if (value == null)
m_checked = false;
else if (value.GetType() == typeof(bool))
m_checked = (bool)value;
else
m_checked = false;
}
}

protected void Page_Load(object sender, EventArgs e)
{
m_checked = CheckBox1.Checked;
}

protected void Page_PreRender()
{
CheckBox1.Checked = m_checked;
}
}


In your aspx page you need to register that control in the head:

And now – you can use it like a regular checkbox without the Null problem:

Hope this helps!

Fabian

Episode 289

type: find /Users/youraccountname/ -flags uchg

This will search your home directory for any file that is locked (user locked, or ‘immutable’ flag).

Got this great info from the manual pages of ‘find’ and ‘chflags’.
man find
man chflags

Happy hunting for those “locked” files!

Episode 223: Classifieds, grabbed my attention as it is talking about newspaper classifieds which my company creates software for both print and online publications.

Its a good listen, here.

2. This video/promo of a new Philips 21:9 tv: http://www.cinema.philips.com/

Very cool stuff!