Return value of Custom Action

[vicky]

Hi!

I am using AI-6.4 and building an enterprise project. My custom action dll is regular MFC DLL.

In a situation, i am checking if Edit control of a dialog is empty, then i display a error message and want to remain on that dialog until user enters any valid text in Edit control or cancel the installation process.
What error code should i return to MSI , so that, i can be remain on that dialog?

Regards,
Vicky

[Cosmin]

Hi Vicky,

The error code of the custom action should be 0, otherwise the installation will be stopped. Please note that the User Guide contains the Make sure an edit box is not empty how-to which may help you.

Regards,
Cosmin

[vicky]

Hi Cosmin!

Zillion thanks for ur reply. I did return 0 from my custom action but still next dialog get appeared.
Following is the code:

Code: Select all

UINT __stdcall MyFunc(MSIHANDLE hModule )
{
...............
...............
	if (MsiGetProperty(hModule, "DLGEDIT_PROP", szvalue, &cchValue)
		 == ERROR_SUCCESS)
		 strEditBoxVal = szvalue;

	if(strEditBoxVal.GetLength() ==0 )
	{
		msg = "Please specify valid text.";
                AfxMessageBox(msg, MB_OK|MB_ICONERROR);
		return 0;//return zero to remain at the dialog
	}
................
..............
	return ERROR_SUCCESS;
}

Regards,
Vicky

[Cosmin]

Hi Vicky,

Please note that you also need to condition the "NewDialog" control event which shows the next dialog. Please check the how-to I mentioned for more details.

Regards,
Cosmin