相关疑难解决方法(0)

我想从Data表dt_branches_global中选择一个字段,如果radioButton_QP是Checked,那么Data表将包含一个string字段,否则Data Table包含一个int字段.这就是我在做的事情.但是我在初始化变量Var时遇到错误.

var AllBranch_IDs = null;

if (radioButton_QP.Checked == true)   
AllBranch_IDs = dt_branches_global.AsEnumerable().Select(x => x.Field<string>("BusinessSectorID")).ToArray();
else

AllBranch_IDs = dt_branches_global.AsEnumerable().Select(x => x.Field<int>("BusinessSectorID")).ToArray();