private void consultar()
{
string query2 = "select c.idtbm_cliente as 'ID', c.nombre_cliente as 'Nombre', c.nit_cliente as 'NIT', c.direccion_cliente as 'Direccion', m.nombre as 'Municipio', d.nombre as 'Departamento' from tbm_cliente c, tbm_municipio m, tbm_departamentos d where c.idtbm_municipio = m.idtbm_municipio and m.idtbm_departamentos = d.idtbm_departamentos";
grid_clientes.DataSource = db.consulta_DataGridView(query2);
grid_clientes.Columns[0].Visible = false;
}
