/// <summary>
/// Checks if the database contains a table with the given name.
/// </summary>
/// <param name="item">case-sensitive name of the table to search for</param>
/// <returns>True if the table exists, false otherwise.</returns>
public bool Contains(string item)
{
if (string.IsNullOrWhiteSpace(item))
{
throw new ArgumentNullException("item");
}
uint ret = RemotableNativeMethods.MsiDatabaseIsTablePersistent((int)this.db.Handle, item);
if (ret == 3) // MSICONDITION_ERROR
{
throw new InstallerException();
}
return(ret != 2); // MSICONDITION_NONE
}
/// <summary>
/// Checks whether a table exists and is persistent in the database.
/// </summary>
/// <param name="table">The table to the checked</param>
/// <returns>true if the table exists and is persistent in the database; false otherwise</returns>
/// <exception cref="ArgumentException">the table is unknown</exception>
/// <exception cref="InvalidHandleException">the Database handle is invalid</exception>
/// <remarks><p>
/// To check whether a table exists regardless of persistence,
/// use <see cref="TableCollection.Contains"/>.
/// </p><p>
/// Win32 MSI API:
/// <a href="http://msdn.microsoft.com/library/en-us/msi/setup/msidatabaseistablepersistent.asp">MsiDatabaseIsTablePersistent</a>
/// </p></remarks>
public bool IsTablePersistent(string table)
{
if (string.IsNullOrWhiteSpace(table))
{
throw new ArgumentNullException("table");
}
uint ret = RemotableNativeMethods.MsiDatabaseIsTablePersistent((int)this.Handle, table);
if (ret == 3) // MSICONDITION_ERROR
{
throw new InstallerException();
}
return(ret == 1);
}