private void LoadSchema(DataSet ds, WmiCommand command, WmiDataReader reader)
{
//Match the query "table".
string name = _commandtable.Match(command.CommandText).Groups["table"].Value;
if (ds.Tables.Contains(name))
{
ds.Tables.Remove(name);
}
DataTable table = new DataTable(name);
//Use the first object to build the table structure.
ManagementObject one = reader.GetOne();
if (one != null)
{
foreach (PropertyData prop in one.Properties)
{
table.Columns.Add(prop.Name, WmiConvert.WmiToClr(prop.Type));
}
}
//Add dummy column if no data is found. For consistency with other ADO.NET providers which always load the schema.
if (table.Columns.Count == 0)
{
table.Columns.Add("Object", typeof(string));
}
ds.Tables.Add(table);
}
/// <summary>
/// Creates an instance of the adapter with the values specified.
/// </summary>
public WmiDataAdapter(string selectCommand, string connectionString)
{
_select = new WmiCommand(selectCommand, new WmiConnection(connectionString));
}
/// <summary>
/// Creates an instance of the adapter with the values specified.
/// </summary>
public WmiDataAdapter(WmiCommand selectCommand, WmiConnection connection)
{
_select = selectCommand;
_select.Connection = connection;
}
/// <summary>
/// Creates an instance of the adapter with the values specified.
/// </summary>
public WmiDataAdapter(WmiCommand selectCommand)
{
_select = selectCommand;
}