I am implementing gridview sorting which is part of a user control. Below code gives me Indexoutofrange error.
The error message is at
dtView.Sort = strSort;
Errormessage:
System.IndexOutOfRangeException: Cannot find column TEXT_COUNTY_ID.
Can anyone point out what I am doing wrong?
protected void SortGridData_Hkl(Object sender, GridViewSortEventArgs e)
{
GridView _dgd_work_onoff = (GridView)Page.FindControl("bodyuc$dgd_work_onoff");
DataSet dstemp;
DataView dtView;
if (ViewState["dsfetchResults"] != null)
{
dstemp = (DataSet)ViewState["dsfetchResults"];
string strSortOrder = ViewState["SortOrder"].ToString();
if (strSortOrder == "DESC")
{
strSortOrder = "ASC";
ViewState["SortOrder"] = strSortOrder;
}
else
{
strSortOrder = "DESC";
ViewState["SortOrder"] = strSortOrder;
}
string strSort = e.SortExpression.ToString() + " " + strSortOrder;
ViewState["SortString"] = strSort;
dtView = dstemp.Tables[0].DefaultView;
dtView.Sort = strSort;
if (dtView.Count != 0)
{
if (_dgd_work_onoff != null)
{
_dgd_work_onoff.DataSource = dtView;
_dgd_work_onoff.DataBind();
}
}
}
'dsfetchResults' is suppose to contain the data from the database.
Got the solution. The column name was different from that of the database column.
Related
This is the correct example, which does not work:
If the LANGUAGE column is the same as the LANGUAGE COLUMN and the NLS_CLASS_NAME column is the same as the KEYWORD COLUMN
Given that they are true, if you noticed the language string I turned it into lowercase and I cut the string so that it becomes "en", since it was first ENG
You must print the language list, keyword is translation
I noticed that it takes a long time to start up, then it prints continuously but incorrectly, because it doesn't print the translation in the for loop.
Can you help me kindly?
I noticed that it takes a long time to start up, then it prints continuously but incorrectly, because it doesn't print the translation in the for loop.
Can you help me kindly?
//Traduzione in Db2 a SqlServer
public void getTraduzione() throws Exception {
List<DizioPt> listDizio = new ArrayList<DizioPt>();
List<ClassHdrNls> listHdr = new ArrayList<ClassHdrNls>();
String className = "";
String language = "";
String nlsClassName = "";
String lingua = "";
String keyword = "";
String traduzione = "";
Database database = new Database();
// Db2
Connection dbConnectionDb2 = null;
Statement statementDb2 = null;
// SqlServer
Connection dbConnectionSqlServer = null;
Statement statementSqlServer = null;
// Query Db2
String queryDb2 = "select * from THERA.CLASS_HDR_NLS WHERE
THERA.CLASS_HDR_NLS.LANGUAGE='en'";
// Query SqlServer
String querySqlServer = "select * from DIZIOPT WHERE
DIZIOPT.LINGUA='ENG'";
try {
// Connessione --> SqlServer
dbConnectionSqlServer = database.getConnectionSqlServer();
statementSqlServer = dbConnectionSqlServer.createStatement();
// Connessione -->Db2
dbConnectionDb2 = database.getConnectionDb2();
statementDb2 = dbConnectionDb2.createStatement();
// Risultato SqlServer
ResultSet rsSqlServer = statementSqlServer.executeQuery(querySqlServer);
// Risultato Db2
ResultSet rsDb2 = statementDb2.executeQuery(queryDb2);
while (rsSqlServer.next() && rsDb2.next()) {
ClassHdrNls classHdrNls = new ClassHdrNls();
className = rsDb2.getString("CLASS_NAME");
classHdrNls.setClassName(className);
language = rsDb2.getString("LANGUAGE");
classHdrNls.setLanguage(language);
nlsClassName = rsDb2.getString("NLS_CLASS_NAME");
classHdrNls.setNlsClassName(nlsClassName);
listHdr.add(classHdrNls);
DizioPt diziopt = new DizioPt();
lingua = rsSqlServer.getString("LINGUA");
diziopt.setLingua(lingua);
keyword = rsSqlServer.getString("KEYWORD");
diziopt.setKeyword(keyword);
traduzione = rsSqlServer.getString("TRADUZIONE");
diziopt.setTraduzione(traduzione);
listDizio.add(diziopt);
for (int i = 0; i < listHdr.size(); i++) {
for (int j = 0; j < listDizio.size(); j++) {
if (listHdr.get(i).getNlsClassName().equalsIgnoreCase(listDizio.get(j).getKeyword())
&& listHdr.get(i).getLanguage()
.equalsIgnoreCase(listDizio.get(j).getLingua().toLowerCase().substring(0, 2))) {
System.out.println("Class name: " + listHdr.get(i).getClassName());
System.out.println("Lingua: " + listHdr.get(i).getLanguage());
System.out.println("Testo: " + listHdr.get(i).getNlsClassName());
System.out.println("Traduzione: " + listDizio.get(j).getTraduzione());
}
}
}
}
} catch (SQLException e) {
System.out.println(e.getMessage());
} finally {
if (statementDb2 != null && statementSqlServer != null) {
statementDb2.close();
statementSqlServer.close();
}
if (dbConnectionDb2 != null && dbConnectionSqlServer != null) {
dbConnectionDb2.close();
dbConnectionSqlServer.close();
}
}
}
I'm trying to write following LINQ query using ServiceStack Ormlite.
dbConn.Select<Product>(p => p.IsActive.HasValue && p.IsActive.Value)
Here, Product is my item class and "IsActive" is Nullable Bool property in that class. When this line executes it always throws "InvalidOperationException" with the message
variable 'p' of type '' referenced from scope '', but it is not defined
I tried different variants as following but still same exception result
dbConn.Select<Product>(p => p.IsActive.HasValue == true && p.IsActive.Value == true)
dbConn.Select<Product>(p => p.IsActive != null && p.IsActive.Value == true)
But if I just write
dbConn.Select<Product>(p => p.IsActive.HasValue)
then it works.
I'm puzzled what is the problem? Is this servicestack ormlite issue?
My answer can handle Nullable value like "value" and "HasValue" with servicestack ormlite. And But also with datetime nullable ,like 'createdate.value.Year'.
you must change two place.
modify VisitMemberAccess method:
protected virtual object VisitMemberAccess(MemberExpression m)
{
if (m.Expression != null)
{
if (m.Member.DeclaringType.IsNullableType())
{
if (m.Member.Name == nameof(Nullable<bool>.Value))
return Visit(m.Expression);
if (m.Member.Name == nameof(Nullable<bool>.HasValue))
{
var doesNotEqualNull = Expression.NotEqual(m.Expression, Expression.Constant(null));
return Visit(doesNotEqualNull); // Nullable<T>.HasValue is equivalent to "!= null"
}
throw new ArgumentException(string.Format("Expression '{0}' accesses unsupported property '{1}' of Nullable<T>", m, m.Member));
}
if (m.Member.DeclaringType == typeof(DateTime))
{
var ExpressionInfo = m.Expression as MemberExpression;
if (ExpressionInfo.Member.DeclaringType.IsNullableType())
{
if (ExpressionInfo.Member.Name == nameof(Nullable<bool>.Value))
{
var modelType = (ExpressionInfo.Expression as MemberExpression).Expression.Type;
var tableDef = modelType.GetModelDefinition();
var columnName = (ExpressionInfo.Expression as MemberExpression).Member.Name;
var QuotedColumnName = GetQuotedColumnName(tableDef, columnName);
if (m.Member.Name == "Year")
{
return new PartialSqlString(string.Format("DATEPART(yyyy,{0})", QuotedColumnName));
}
if (m.Member.Name == "Month")
return new PartialSqlString(string.Format("DATEPART(mm,{0})", QuotedColumnName));
}
if (ExpressionInfo.Member.Name == nameof(Nullable<bool>.HasValue))
{
var doesNotEqualNull = Expression.NotEqual(ExpressionInfo.Expression, Expression.Constant(null));
return Visit(doesNotEqualNull); // Nullable<T>.HasValue is equivalent to "!= null"
}
}
else
{
var modelType = ExpressionInfo.Expression.Type;
var tableDef = modelType.GetModelDefinition();
var columnName = ExpressionInfo.Member.Name;
var QuotedColumnName = GetQuotedColumnName(tableDef, columnName);
if (m.Member.Name == "Year")
return new PartialSqlString(string.Format("DATEPART(yyyy,{0})", QuotedColumnName));
if (m.Member.Name == "Month")
return new PartialSqlString(string.Format("DATEPART(mm,{0})", QuotedColumnName));
}
}
if (m.Expression.NodeType == ExpressionType.Parameter || m.Expression.NodeType == ExpressionType.Convert)
{
var propertyInfo = (PropertyInfo)m.Member;
var modelType = m.Expression.Type;
if (m.Expression.NodeType == ExpressionType.Convert)
{
var unaryExpr = m.Expression as UnaryExpression;
if (unaryExpr != null)
{
modelType = unaryExpr.Operand.Type;
}
}
var tableDef = modelType.GetModelDefinition();
if (propertyInfo.PropertyType.IsEnum)
return new EnumMemberAccess(
GetQuotedColumnName(tableDef, m.Member.Name), propertyInfo.PropertyType);
return new PartialSqlString(GetQuotedColumnName(tableDef, m.Member.Name));
}
}
var member = Expression.Convert(m, typeof(object));
var lambda = Expression.Lambda<Func<object>>(member);
var getter = lambda.Compile();
return getter();
}
modify VisitLambda method :
protected virtual object VisitLambda(LambdaExpression lambda)
{
if (lambda.Body.NodeType == ExpressionType.MemberAccess && sep == " ")
{
MemberExpression m = lambda.Body as MemberExpression;
if (m.Expression != null)
{
string r = VisitMemberAccess(m).ToString();
if (m.Member.DeclaringType.IsNullableType())
return r;
return string.Format("{0}={1}", r, GetQuotedTrueValue());
}
}
return Visit(lambda.Body);
}
This is nature of the Linq. In order to achieve what you need, you will need to use two where closes:
dbConn.Where<Product>(p => p.IsActive.HasValue).Where(p=>p.Value==true);
public bool SaveValidTicketNos(string id,string[] ticketNos, string checkType, string checkMan)
{
bool result = false;
List<Carstartlistticket>enties=new List<Carstartlistticket>();
using (var context = new MiniSysDataContext())
{
try
{
foreach (var ticketNo in ticketNos)
{
Orderticket temp = context.Orderticket.ByTicketNo(ticketNo).SingleOrDefault();
if (temp != null)
{
Ticketline ticketline= temp.Ticketline;
string currencyType = temp.CurrencyType;
float personAllowance=GetPersonCountAllowance(context,ticketline, currencyType);
Carstartlistticket carstartlistticket = new Carstartlistticket()
{
CsltId = Guid.NewGuid().ToString(),
Carstartlist = new Carstartlist(){CslId = id},
LeaveDate = temp.LeaveDate,
OnPointName = temp.OnpointName,
OffPointName = temp.OffpointName,
OutTicketMan = temp.OutBy,
TicketNo = temp.TicketNo,
ChekMan = checkMan,
Type = string.IsNullOrEmpty(checkType)?(short?)null:Convert.ToInt16(checkType),
CreatedOn = DateTime.Now,
CreatedBy = checkMan,
NumbserAllowance = personAllowance
};
enties.Add(carstartlistticket);
}
}
context.BeginTransaction();
context.Carstartlistticket.InsertAllOnSubmit(enties);
context.SubmitChanges();
bool changeStateResult=ChangeTicketState(context, ticketNos,checkMan);
if(changeStateResult)
{
context.CommitTransaction();
result = true;
}
else
{
context.RollbackTransaction();
}
}
catch (Exception e)
{
LogHelper.WriteLog(string.Format("CarstartlistService.SaveValidTicketNos({0},{1},{2},{3})",id,ticketNos,checkType,checkMan),e);
context.RollbackTransaction();
}
}
return result;
}
My code is above. I doubt these code have terrible poor performance. The poor performance in the point
Orderticket temp = context.Orderticket.ByTicketNo(ticketNo).SingleOrDefault();
,actually， I got an string array through the method args,then I want to get all data by ticketNos from database, here i use a loop,I know if i write my code like that ,there will be cause performance problem and it will lead one more time database access,how can avoid this problem and improve the code performance,for example ,geting all data by only on databse access
I forget to tell you the ORM I use ,en ,the ORM is PlinqO based NHibernate
i am looking forward to having your every answer,thank you
using plain NHibernate
var tickets = session.QueryOver<OrderTicket>()
.WhereRestrictionOn(x => x.TicketNo).IsIn(ticketNos)
.List();
short? type = null;
short typeValue;
if (!string.IsNullOrEmpty(checkType) && short.TryParse(checkType, out typeValue))
type = typeValue;
var entitiesToSave = tickets.Select(ticket => new Carstartlistticket
{
CsltId = Guid.NewGuid().ToString(),
Carstartlist = new Carstartlist() { CslId = id },
LeaveDate = ticket.LeaveDate,
OnPointName = ticket.OnpointName,
OffPointName = ticket.OffpointName,
OutTicketMan = ticket.OutBy,
TicketNo = ticket.TicketNo,
ChekMan = checkMan,
CreatedOn = DateTime.Now,
CreatedBy = checkMan,
Type = type,
NumbserAllowance = GetPersonCountAllowance(context, ticket.Ticketline, ticket.CurrencyType)
});
foreach (var entity in entitiesToSave)
{
session.Save(entity);
}
to enhance this further try to preload all needed PersonCountAllowances
Im trying to write a method which will allow me to search different DataTables, over different columns.
So far i have the following:
string selectedValue;
string searchColumn;
string targetColumn;
var results = (from a in dt.AsEnumerable()
where a.Field<string>(searchColumn) == selectedValue
select new
{
targetColumn = a.Field<string>(targetColumn)
}).Distinct();
Which kind of gets the job done, but I'm left with the column name as targetColumn rather than the actual column name I want.
Is there any way to resolve this?
Thanks in advance
CM
I make a LINQ to Datatables
public List<DataRow> Where(this DataTable dt, Func<DataRow, bool> pred)
{
List<DataRow> res = new List<DataRow>();
try {
if (dt != null && dt.Rows.Count > 0) {
for (i = 0; i <= dt.Rows.Count - 1; i++) {
if (pred(dt(i))) {
res.Add(dt(i));
}
}
}
} catch (Exception ex) {
PromptMsg(ex);
}
return res;
}
Usage :
var RowsList = dt.Where(f => f("SomeField").toString() == "SomeValue" ||
f("OtherField") > 5);
I am using EWS and wish to obtain the global address list from exchange for the company. I know how to retrieve the personal contact list.
All the samples in the API documentation deal with updating user information but not specifically how to retrieve them.
I've even tried the following to list the folders but it doesn't yeild the correct results.
private static void ListFolder(ExchangeService svc, FolderId parent, int depth) {
string s;
foreach (var v in svc.FindFolders(parent, new FolderView(int.MaxValue))) {
Folder f = v as Folder;
if (f != null) {
s = String.Format("[{0}]", f.DisplayName);
Console.WriteLine(s.PadLeft(s.Length + (depth * 2)));
ListFolder(svc, f.Id, depth + 1);
try {
foreach (Item i in f.FindItems(new ItemView(20))) {
Console.WriteLine(
i.Subject.PadLeft(i.Subject.Length + ((depth + 1) * 2)));
}
} catch (Exception) {
}
}
}
}
While the question has already been raised (How to get contact list from Exchange Server?) this question deals specifically with using EWS to get the global address list while this question asks for advice on a general level.
you may got ItemType objects in a specifiedfolder with the code snippet below
and then cast ItemType objects to ContactItemType (for contact objects) ....
/// <summary>
/// gets list of ItemType objects with maxreturncriteria specicification
/// </summary>
/// <param name="esb">ExchangeServiceBinding object</param>
/// <param name="folder">FolderIdType to get items inside</param>
/// <param name="maxEntriesReturned">the max count of items to return</param>
public static List<ItemType> FindItems(ExchangeServiceBinding esb, FolderIdType folder, int maxEntriesReturned)
{
List<ItemType> returnItems = new List<ItemType>();
// Form the FindItem request
FindItemType request = new FindItemType();
request.Traversal = ItemQueryTraversalType.Shallow;
request.ItemShape = new ItemResponseShapeType();
request.ItemShape.BaseShape = DefaultShapeNamesType.AllProperties;
request.ParentFolderIds = new FolderIdType[] { folder };
IndexedPageViewType indexedPageView = new IndexedPageViewType();
indexedPageView.BasePoint = IndexBasePointType.Beginning;
indexedPageView.Offset = 0;
indexedPageView.MaxEntriesReturned = 100;
indexedPageView.MaxEntriesReturnedSpecified = true;
request.Item = indexedPageView;
FindItemResponseType response = esb.FindItem(request);
foreach (FindItemResponseMessageType firmtMessage in response.ResponseMessages.Items)
{
if (firmtMessage.ResponseClass == ResponseClassType.Success)
{
if (firmtMessage.RootFolder.TotalItemsInView > 0)
foreach (ItemType item in ((ArrayOfRealItemsType)firmtMessage.RootFolder.Item).Items)
returnItems.Add(item);
//Console.WriteLine(item.GetType().Name + ": " + item.Subject + ", " + item.DateTimeReceived.Date.ToString("dd/MM/yyyy"));
}
else
{
//handle error log here
}
}
return returnItems;
}
I just did a similiar thing. However, I was unable to get the list of contacts via Exchange since that only gets users that have mailboxes, and not necessarily all users or groups. I eventually ended up getting all the users via AD
here is code to get all the contacts in AD. All you need is the folderID of the global address list which can be gotten from using the ADSI.msc tool on your AD server and browsing to the Global address list folder, look at properties and grab the value of the "purported search". In my system the searchPath for the global address list is"(&(objectClass=user)(objectCategory=person)(mailNickname=)(msExchHomeServerName=))"
public List<ListItem> SearchAD(string keyword, XmlDocument valueXml)
{
List<ListItem> ewsItems = new List<ListItem>();
using (DirectoryEntry ad = Utils.GetNewDirectoryEntry("LDAP://yourdomain.com"))
{
Trace.Info("searcherをつくる");
using (DirectorySearcher searcher = new DirectorySearcher(ad))
{
if (this.EnableSizeLimit)
{
searcher.SizeLimit = GetMaxResultCount();
if (Utils.maxResultsCount > 1000)
{
searcher.PageSize = 100;
}
}
else
{
searcher.SizeLimit = 1000;
searcher.PageSize = 10;
}
string sisya = Utils.DecodeXml(valueXml.SelectSingleNode("Folder/SearchPath").InnerText); //this is the folder to grab your contacts from. In your case Global Address list
//Container
if(String.IsNullOrEmpty(sisya))
{
return null;
}
keyword = Utils.EncodeLdap(keyword);
string text = Utils.DecodeXml(valueXml.SelectSingleNode("Folder/Text").InnerText);
searcher.Filter = this.CreateFilter(keyword, sisya);
searcher.Sort = new SortOption("DisplayName", System.DirectoryServices.SortDirection.Ascending);
//一つのPropertyをロードすると、全Propertyを取らないようになる
searcher.PropertiesToLoad.Add("SAMAccountName"); //どのPropertyでもいい。
SearchResultCollection searchResults = searcher.FindAll();
foreach (SearchResult searchResult in searchResults)
{
//ListItem contact = null;
using (DirectoryEntry userEntry = searchResult.GetDirectoryEntry())
{
try
{
string schemaClassName = userEntry.SchemaClassName;
switch (schemaClassName)
{
case "user":
case "contact":
string fname = userEntry.Properties["GivenName"].Value == null ? "" : userEntry.Properties["GivenName"].Value.ToString();
string lname = userEntry.Properties["sn"].Value == null ? "" : userEntry.Properties["sn"].Value.ToString();
string dname = userEntry.Properties["DisplayName"][0] == null ? lname + " " + fname : userEntry.Properties["DisplayName"][0].ToString();
//No Mail address
if ((userEntry.Properties["mail"] != null) && (userEntry.Properties["mail"].Count > 0))
{
string sAMAccountName = "";
if(userEntry.Properties["SAMAccountName"].Value != null){
sAMAccountName = userEntry.Properties["SAMAccountName"].Value.ToString();
}
else{
sAMAccountName = userEntry.Properties["cn"].Value.ToString();
}
string contactXml = Utils.ListViewXml(sAMAccountName, UserType.User, Utils.UserXml(fname, lname, userEntry.Properties["mail"].Value.ToString(), dname, null), ServerType.Ad);
ewsItems.Add(new ListItem(dname + "<" + userEntry.Properties["mail"].Value.ToString() + ">", contactXml));
}
else
{
ListItem contact = new ListItem(dname, null);
contact.Enabled = false;
ewsItems.Add(contact);
Trace.Info("追加できないユーザ: " + searchResult.Path);
}
break;
case "group":
ewsItems.Add(new ListItem(userEntry.Properties["DisplayName"].Value.ToString(), Utils.ListViewXml(userEntry.Properties["SAMAccountName"].Value.ToString(), UserType.Group, null, ServerType.Ad)));
break;
default:
userEntry.Properties["SAMAccountName"].Value.ToString());
ewsItems.Add(new ListItem(userEntry.Properties["name"].Value.ToString(), Utils.ListViewXml(userEntry.Properties["SAMAccountName"].Value.ToString(), UserType.Group, null, ServerType.Ad)));
break;
}
}
catch (Exception ex)
{
Trace.Error("User data取得失敗", ex);
}
}
}
searchResults.Dispose();
}
}
return ewsItems;
}