/// <summary>
/// Gets a formatted string representation of the Record, optionally using a Session to format properties.
/// </summary>
/// <param name="provider">an optional Session instance that will be used to lookup any
/// properties in the Record's format string</param>
/// <returns>A formatted string representation of the Record.</returns>
/// <remarks><p>
/// If field 0 of the Record is set to a nonempty string, it is used to format the data in the Record.
/// </p><p>
/// Win32 MSI API:
/// <a href="http://msdn.microsoft.com/library/en-us/msi/setup/msiformatrecord.asp">MsiFormatRecord</a>
/// </p></remarks>
/// <seealso cref="FormatString"/>
/// <seealso cref="Session.FormatRecord(Record)"/>
public string ToString(IFormatProvider provider)
{
if (this.IsFormatStringInvalid) // Format string is invalid
{
// TODO: return all values by default?
return(String.Empty);
}
InstallerHandle session = provider as InstallerHandle;
int sessionHandle = session != null ? (int)session.Handle : 0;
StringBuilder buf = new StringBuilder(String.Empty);
uint bufSize = 1;
uint ret = RemotableNativeMethods.MsiFormatRecord(sessionHandle, (int)this.Handle, buf, ref bufSize);
if (ret == (uint)NativeMethods.Error.MORE_DATA)
{
bufSize++;
buf = new StringBuilder((int)bufSize);
ret = RemotableNativeMethods.MsiFormatRecord(sessionHandle, (int)this.Handle, buf, ref bufSize);
}
if (ret != 0)
{
throw InstallerException.ExceptionFromReturnCode(ret);
}
return(buf.ToString());
}