我不能设置任何限制我的数据表,如果我合并两个数据表 dt1.Merge(DT2);
这表明这样的错误未能启用限制。一个或多个行包含违反非空,唯一,或外键约束。
默认情况下我认为在可视化工具它显示的限制数为2。如何从数据表中删除约束和解决这个错误?
I cannot set any constraints in my datatable if i merge two datatables dt1.Merge(dt2);
It shows error like this Failed to enable constraints. One or more rows contain values violating non-null, unique, or foreign-key constraints.
By default i view in visualizer it shows constraints count as 2. How to remove constraints from datatable and solve this error?
从数据表,您可以使用删除约束
To remove constraints from a DataTable you can use:
myDataTable.Constraints.Clear