var grid = Ext.getCmp('Audit_LogPanel');//获取表格的id
1.获取表格数据的下标
var rowid = grid.getStore().indexOf(record[0]) //表格数据的下标,从0开始.
2.获取选择行的数据(单行)
(1) var a = grid.getSelectionModel().getSelected();
console.log(a.data);
(2) var record = grid.getSelectionModel().getSelections();
console.log(record[0].data);
3.获取所有选择行的数据(多行)
grid.getSelectionModel().getSelections();
4.获取选择行数据条数
var count = grid.getSelectionModel().getCount();