Hey Group,
We create a lot of coontrols every day but generally we never bother about licensing them. Licensing only comes into the picture when we need to share our controls with others.
Let us today create a licensed control then we will use lc.exe and embed the license in our assembly.
1) Open a new peoject Windows Control Library.
2) Add a new control to it. Could be inheriting from control or usercontrol.
3) There are a few thing that we need to do to make our licensed component.
4) Add LicenseProvider Class attribute giving the type of license provider we are using. LicFileLicenseProvider comes with the .Net Framework.
[LicenseProvider(typeof(LicFileLicenseProvider))] 5) Add a private license object to our class
private License license; 6) Validate the license in our constructor
license = LicenseManager.Validate(typeof(Ctrl1),this); 7) At last Dispose the license in the dispose method by overriding the dispose method.
if( disposing )
{
if(license == null)
{
license.Dispose();
license=null;
}
}
8) Your class should like this in the end
using System;
using System.Collections;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Windows.Forms;
namespace CL
{
[LicenseProvider(typeof(LicFileLicenseProvider))]
public class Ctrl : System.Windows.Forms.Control
{
private License license;
public Ctrl()
{
license = LicenseManager.Validate(typeof(UserControl1),this);
}
protected override void OnPaint(PaintEventArgs pe)
{
base.OnPaint(pe);
}
protected override void Dispose( bool disposing )
{
if( disposing )
{
if(license == null)
{
license.Dispose();
license=null;
}
}
base.Dispose( disposing );
}
}
}
9) Compile the project.
10) Create a new Windows application which will act as a host to our control. Name it LicCtrlClient.
11) Create a file called LicCtrlClientlic.txt which will hold the entire list of components and the dll name.
LicCtrlClientlic.txt contents
CL.Ctrl
CL.UserControl
CL.dll
12) Compile .licenses file for licCtrlClient
lc /target:licCtrlClient.exe /complist:LicCtrlClientlic.txt /i:CL.dll 13) <application.exe>.licenses file will be generated.
14) You can use your language compiler or al to embed this file in your exe.
--
Please post your queries and comments for my articles in the usergroup for the benefit of all. I hope this step from my end is helpful to all of us.
Regards,
Namratha (Nasha)
