DataTable的IIF用法

直接上例子吧

代码


1 DataTable dt = dgvShowAll.DataSource as DataTable;
2 dt.Columns.Add(new DataColumn("doctype", typeof(string)));
3 dt.Columns["doctype"].Expression = "IIF(check_type=1,'采购入库',IIF(check_type=2,'盘点入库',IIF(check_type=3,'移仓入库',IIF(check_type=4,'销售退回','其它入库'))))";

求这种写法的case when版。。还是我这是唯一的解决办法？

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