[教学] Cannot serialize the DataTable. DataTable name is not set.

Web Service - Return Datatable

1. Cannot serialize the DataTable. DataTable name is not set.

复制代码

1. Give a name to datatable.
1. 给个datatable名字

2. Add your data column name.
2. 添加列名

table = new DataTable("MyTable");
table.Columns.Add("Id");