var grid = this.comp("grid1");
var rowIDs = grid.getCheckeds();//获取多选选中行的id.返回的是list数组
var data = this.comp("bizData1");
var rows = [];
for(var i=0;i<rowIDs.length;i++){//遍历多选选中的行id
rows.push(data.getRowByID(rowIDs)) ; //通过行id获取到行,并push到rows中
}
if (rows.length > 0){
data.deleteData(rows);
}