将table2中的首行数据添加到table1的首行

 private DataTable GetDataTable(DataTable table1 ,DataTable table2)
    {
        DataTable result = null;
        if (table1.Rows.Count>0&&table1!=null)
        {
            result  = table1;
            if (table2 != null&&table2.Rows.Count>0)
            {
                DataRow row = null;
                row = table1.NewRow();
                for (int i = 0; i < table2.Columns.Count; i++)
                {
                    if (result.Columns.Contains(table2.Columns[i].ColumnName))
                    {
                        var temp = table2.Rows[0][table2.Columns[i].ColumnName]; 
                        row[table2.Columns[i].ColumnName] = table2.Rows[0][table2.Columns[i].ColumnName];
                    }
                }
                result.Rows.InsertAt(row, 0);
            }
        }
        return result;
    }