我的數據表列表，我怎麼可以複製列表到一個DataTable在C＃

Question

public DataTable LoadPaymentsList() 
{ 
    List<DataTable> lstDts = new List<DataTable>(); 
    // Copy into dt 
    Datatable dt=new Datatable(); 
    return dt; 
} 

Answer 1

我不認爲還有比簡單一個更好的方式 - 和Column -Adding：

DataTable mergedTable = new DataTable(); 
List<DataTable> tableCollection = new List<DataTable>(); 
/*---------------------------------*/ 

bool columnsAdded = false; 
foreach (DataTable table in tableCollection) 
{ 
    if (!columnsAdded) 
    { 
     foreach (DataColumn column in table.Columns) 
     { 
      mergedTable.Columns.Add(column); 
     } 
     columnsAdded = true; 
    } 
    foreach (DataRow row in table.Rows) 
    { 
     mergedTable.Rows.Add(row); 
    } 
} 

Answer 2

你想看看合併表。檢查數據表合併的進一步信息，http://www.c-sharpcorner.com/UploadFile/0c1bb2/merging-multiple-datatables-into-single-datatable-using-asp/

//merging first data table into second data table 
     dt2.Merge(dt); 
     dt2.AcceptChanges();