我有一个数据表列表，如何将该列表复制到c＃中的单个数据表中

Question

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

Answer 1

我认为没有比简单Row更好的方式 - 和Column - 添加：

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

您想了解一下合并表格。有关dataTable合并的更多信息，请查看此信息，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();