Baladji,
Be very careful using C# within a Microsoft Installer based installation
(like those generated using WiX). By doing so, you place an additional
dependency on the .NET framework, and has been discussed many times this
is a *bad thing*. Ideally you should choose something (e.g. C++) that
can be built to have minimal (ideally no) external dependencies.
As far as your code problem is concerned... it appears that you are
setting a property called "testing", but your custom action is
attempting to retrieve one called "CustomActionData". This might cause
trouble. :-) I don't know if what you posted is actually the code you
are using, or if you sanitized it first, but it would be worth checking.
Regards,
Richard
________________________________
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Balaji
Nidadavolu
Sent: Thursday, August 02, 2007 5:40 AM
To: wix-users@lists.sourceforge.net
Subject: [WiX-users] FW: passing parameters through custom actions in C#
Hi,
I am trying to pass parameters from WIX to C# code, but I am not able to
do it properly. To code that I have written on WIX side is:
<Property Id="teststring">
<![CDATA[Hello world]]>
</Property>
<CustomAction Id="testing" Return="check" BinaryKey="test"
DllEntry="hello"/>
<Binary Id="test" src="test.dll" />
<CustomAction Id="testing.setproperty" Return="check" Property="testing"
Value="[teststring]" />
<InstallExecuteSequence>
<Custom Action="testing.setproperty" After="InstallFiles" />
<Custom Action="testing" After="testing.setproperty" />
</InstallExecuteSequence>
The code I have written in C# and compiled as a DLL is :
using System;
using System.Text;
using System.Runtime.InteropServices;
namespace testing
{
public class test{
public static int hello(IntPtr handle)
{
int i;
int ptrcnt = 256;
//System.Windows.Forms.MessageBox.Show( String.Format( "Hello World
{0}",handle) );
StringBuilder sb = new StringBuilder(ptrcnt);
i = MsiGetProperty(handle,"CustomActionData",sb,ref ptrcnt);
System.Windows.Forms.MessageBox.Show( String.Format ( "{0}",sb ) ;
return 0;
}
[DllImport("msi.dll", CharSet=CharSet.Unicode)]
static extern int MsiGetProperty(IntPtr hInstall, string szName, [Out]
StringBuilder szValueBuf, ref int pchValueBuf);
}
}
But I am not able to pass the property value to C#. I am compiling the
code as a dll and making necessary modifications in the ilcode to export
the method test. Can anyone please let me know if I am missing anything.
Thank you,
regards
balaji.
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