C# 在Mvc中将一个数据表的值复制到另一个数据表

实际上，我有两个数据表。这是代码供参考。实际上，关系保存子字符串值（此处未提及代码）。因此，我根据条件将数据拆分为存储在两个表中

 if (child.Relationship.Contains("P"))
{
   var newRow = dataTable.NewRow();
   newRow["EmployeeNo"] = child.EmployeeNo;
   newRow["FirstName"] = child.FirstName;
   newRow["MiddleName"] = child.MiddleName;
   newRow["LastName"] = child.LastName;
   newRow["FullName"] = child.FullName;
   newRow["MemberIc"] = child.MemberIc;
   dataTable.Rows.Add(newRow);
   }
else
   {
     var newRow1 = dataTable1.NewRow();
     newRow1["EmployeeNo"] = child.EmployeeNo;
     newRow1["FirstName"] = child.FirstName;
     newRow1["MiddleName"] = child.MiddleName;
     newRow1["LastName"] = child.LastName;
     newRow1["FullName"] = child.FullName;     
     newRow1["MemberIC"] = child.MemberIC;         
     dataTable1.Rows.Add(newRow1);
     }

因此，每当第二个数据表中的MemberIc为空时。我需要根据EmployeeNo从第一个数据表复制MemberIc（仅当EmployeeNo匹配时）。 如何复制该值？谢谢你的帮助。提前感谢

给你

var rows = datatable.Select("EmployeeNo = " + child.EmployeeNo);

var memberIC = 0;
if(rows.length > 0)
{
    memberIC = rows[0].Field<int>("memberIC");
}

if (child.Relationship.Contains("P"))
{
   var newRow = dataTable.NewRow();
   newRow["EmployeeNo"] = child.EmployeeNo;
   newRow["FirstName"] = child.FirstName;
   newRow["MiddleName"] = child.MiddleName;
   newRow["LastName"] = child.LastName;
   newRow["FullName"] = child.FullName;
   newRow["MemberIc"] = child.MemberIc;
   dataTable.Rows.Add(newRow);
}
else
{
    var newRow1 = dataTable1.NewRow();
    newRow1["EmployeeNo"] = child.EmployeeNo;
    newRow1["FirstName"] = child.FirstName;
    newRow1["MiddleName"] = child.MiddleName;
    newRow1["LastName"] = child.LastName;
    newRow1["FullName"] = child.FullName;     
    newRow1["MemberIC"] = child.MemberIC == 0 ? memberIC : child.MemberIC;         
    dataTable1.Rows.Add(newRow1);
}

var rows=datatable.Select（“EmployeeNo=“+child.EmployeeNo”）；
var memberIC=0；
如果（rows.length>0）
{
memberIC=行[0]。字段（“memberIC”）；
}
if（child.Relationship.Contains（“P”））
{
var newRow=dataTable.newRow（）；
newRow[“EmployeeNo”]=child.EmployeeNo；
newRow[“FirstName”]=child.FirstName；
newRow[“MiddleName”]=child.MiddleName；
newRow[“LastName”]=child.LastName；
newRow[“FullName”]=child.FullName；
newRow[“MemberIc”]=child.MemberIc；
dataTable.Rows.Add（newRow）；
}
其他的
{
var newRow1=dataTable1.NewRow（）；
newRow1[“EmployeeNo”]=child.EmployeeNo；
newRow1[“FirstName”]=child.FirstName；
newRow1[“MiddleName”]=child.MiddleName；
newRow1[“LastName”]=child.LastName；
newRow1[“FullName”]=child.FullName；
newRow1[“MemberIC”]=child.MemberIC==0？MemberIC:child.MemberIC；
dataTable1.Rows.Add（newRow1）；
}

---

这与C#、ADO.NET或datatable无关。这是检查内容和检查位置的简单逻辑。

首先需要从第一个表中获取匹配employeeId的employeeId，并将其存储在某个变量中。然后，在插入行时，使用此变量设置EmployeeId列的值。我可以要一个样本@ChetanRanpariya吗