我正在运行此代码,从核心系统调用数据
public int MuatTurunMTS(hopesWcfRef.Manifest2 entParam, string destination, int capacity)
{
try
{
EL.iSeriesWcf.IiSeriesClient iClient = new iSeriesWcf.IiSeriesClient();
EL.iSeriesWcf.Manifest2 manifest2 = new iSeriesWcf.Manifest2();
manifest2 = iClient.GetManifest2(entParam.NOKT, destination, capacity);
DataTable dt = new DataTable();
dt = manifest2.Manifest2Table;
List<hopesWcfRef.Manifest2> LstManifest2 = new List<hopesWcfRef.Manifest2>();
for (int i = 0; i < dt.Rows.Count; i++)
{
hopesWcfRef.Manifest2 newDataRow = new hopesWcfRef.Manifest2();
newDataRow.NOPASPOT = dt.Rows[i][1].ToString();
newDataRow.NOKT = dt.Rows[i][0].ToString();
newDataRow.KOD_PGKT = dt.Rows[i][2].ToString();
newDataRow.KOD_KLGA = dt.Rows[i][3].ToString();
newDataRow.NAMA = dt.Rows[i][4].ToString();
newDataRow.TKHLAHIR = (dt.Rows[i][5].ToString() == "1/1/0001 12:00:00 AM" ? DateTime.Now : Convert.ToDateTime(dt.Rows[i][5])); //Convert.ToDateTime(dt.Rows[i][5]);
newDataRow.JANTINA = dt.Rows[i][6].ToString();
newDataRow.WARGANEGARA = dt.Rows[i][7].ToString();
newDataRow.JNS_JEMAAH = dt.Rows[i][8].ToString();
newDataRow.NO_SIRI = dt.Rows[i][9].ToString();
newDataRow.NO_MS = Convert.ToInt16(dt.Rows[i][10]);
newDataRow.BARKOD = dt.Rows[i][13].ToString();
newDataRow.NO_DAFTAR = dt.Rows[i][14].ToString();
//bydefault make cell empty
newDataRow.STS_JEMAAH = "";
newDataRow.SEAT_NO = "";
newDataRow.SEAT_ZONE = "";
newDataRow.BERAT = 0;
newDataRow.JUM_BEG = 0;
LstManifest2.Add(newDataRow);
}
int cntr = 0;
if (LstManifest2.Count != 0)
{
foreach (hopesWcfRef.Manifest2 manifest in LstManifest2)
{
cntr++;
SaveManifestTS(manifest);
}
}
return LstManifest2.Count;
}
catch (Exception ex)
{
throw ex;
}
}
转到:
public void SaveManifestTS(hopesWcfRef.Manifest2 manifest)
{
try
{
ent.BeginSaveChanges(SaveChangesOptions.Batch, null, null);
ent.AddObject("Manifest2", manifest);
ent.SaveChanges(SaveChangesOptions.Batch);
}
catch (Exception ex)
{
//Uri u = new Uri(ent.BaseUri + "GetErrorMsg"
// , UriKind.RelativeOrAbsolute);
//string datas = (ent.Execute<string>(u)).FirstOrDefault();
//Exception ex = new Exception(datas);
throw ex;
}
}
当SaveChanges运行时,如果数据存在,它将复制整行, 插入时如何避免重复数据(savechanges)?????? 非常感谢
答案 0 :(得分:0)
怎么样:不要插入。
在这些情况下,我使用MERGE语句更新现有数据(基于主键)并插入新数据。
哦,你喜欢发布的所有代码示例与问题完全无关,这是一个纯粹的SQL问题。你真的引用你的汽车手册,然后询问转向哪个方向。