My below code worked fine while running in .NET 4.0 but when I run the same code in .NET 2.0 I am getting an error at var I found that var is not accepted in .NET 2.0 and older but my Plesk 9.0.1 do not allow me to use .NET 4.0 also I cannot upgrade my plesk at this time because of traffic to my server. Well, anybody please convert the below code such that is works even with .NET 2.0. Thanks in advance.
var app = new hMailServer.Application();
app.Authenticate("Administrator", "********");
var domain = app.Domains.get_ItemByName("mydomain.ext");
var account = domain.Accounts.Add();
account.Address = "user#mydomain.ext";
account.Password = "secret";
account.Active = true;
account.MaxSize = 1000;
account.PersonFirstName = "";
account.Save();
Just instead of var what can I use? I tried string which is not accepted. Any idea?
First line I used as hMailServer.Application app = new hMailServer.Application(); Its accepted bur at the var domain and var account .NET 2.0 is not accepting.
Just instead of var what can I use?
Use the actual types (read the documentation of the API you are using to understand what those types are):
hMailServer.Application app = new hMailServer.Application();
app.Authenticate("Administrator", "********");
hMailServer.Domain domain = app.Domains.get_ItemByName("mydomain.ext");
hMailServer.Account account = domain.Accounts.Add();
...
Also note that var was introduced in C# 3.0 and not 4.0.
Basically you need to identify the type of your variables and then declare them.. you could do it by hovering over the variable and visual studio should show you the return type or the type of variable it is.
Or install Resharper (a productivity tool) for visual studio it should assist you with the same.. You can do things like pull out variable for a particular piece of code and it will take care of identifying the type etc of your varaible.. You should be able to get a trial version.
You might have to do this en masse that is why I am suggesting this.
P.S: I am not markerting Resharper.. just a regular user of the software and in awe of the same.
Related
I have a simple task which involves creating online meetings using Microsoft Graph API. I'm using the basic sample code from the site, something like this:
var onlineMeeting = new OnlineMeeting
{
StartDateTime = DateTimeOffset.Parse("2019-07-12T21:30:34.2444915+00:00"),
EndDateTime = DateTimeOffset.Parse("2019-07-12T21:30:34.2444915+00:00"),
Subject = "This is the subject"
};
var meeting = await graphClient.Users["userid here"].OnlineMeetings.Request().AddAsync(onlineMeeting);
This unfortunately gives a 400 response with a very obsure reasoning. However, I was able to narrow down the probable cause of the problem: the serialization of the DateTimeOffset properties. For some reason, my requests contain the data in the format like 19/07/12 21:30:34 -07:00", instead of the required format, which is basically the same as the argument provided for DateTimeOffset.Parse().
My question is how can I customize the serialization format in the SDK? And more importantly, why should I do this explicitly, and why can't I find any mention of this in the documentation?
Turns out I have not updated the SDK for a while now and I was using an old version. I updated to the latest version and the problem went away :)
I build a small NET Core app to test Pulsar. I am trying to repeat steps described here https://pulsar.apache.org/docs/en/client-libraries-dotnet/
I have added the NuGet DotPulsar.
And I have errors during the compilation.
For example,
var data = Encoding.UTF8.GetBytes("Hello World");
var messageId = await pulsarProducer.NewMessage()
.Property("SomeKey", "SomeValue")
.Send(data);
IProducer does not contains definition for NewMessage() etc. How to fix it?
The 'NewMessage' method on IProducer is actually an extension method, so you need a using statement for 'DotPulsar.Extensions'.
Best regards
db
strange problem here. On local development in asp.net webforms (4.5 / 4.7) I am finding httpruntime.Cache always null even when properly set. I attempted it on another iis express workstation and found the same behavior, even with a tester single page web page. That same page in production IIS 7.5 works and is storing and delivering from cache. The code specifically is below, but I have tried a tester storing a simple string in httpruntime.Cache.
var cache = System.Runtime.Caching.MemoryCache.Default;
var luCacheKey = "lu_" + dsName;
var ic = HttpRuntime.Cache.Get(luCacheKey) as ICollection;
if (ic == null) {
and from the tester
var item = HttpRuntime.Cache.Get("x");
if (item == null)
{
HttpContext.Current.Cache.Insert("x", "test" , null, DateTime.Now.AddHours(1), Cache.NoSlidingExpiration);
Response.Write("added to cache<br>");
}
else {
Response.Write("already in cache");
}
So, I am wondering if there is something perhaps in web.config that I could look at or is this expected IIS express behavior? Note, System.runtime.Caching does work properly.
var cache = System.Runtime.Caching.MemoryCache.Default;
var ic = cache[luCacheKey] as ICollection;
if (ic == null)
{
var filterCriteria = new BinaryOperator("LookupGroup", dsName, BinaryOperatorType.Equal);
var lookups = xpoSession.GetClassInfo(typeof(Lookups));
ic = xpoSession.GetObjects(lookups, filterCriteria, new SortingCollection(), 0, 0, false, false);
var cachePolicy = new System.Runtime.Caching.CacheItemPolicy() { AbsoluteExpiration = DateTime.Now + TimeSpan.FromMinutes(30) };
cache.Add(new System.Runtime.Caching.CacheItem(luCacheKey, ic), cachePolicy);
You incorrectly add your object to the cache.
Instead of DateTime.Now follow the docs and put DateTime.UtcNow. This resolves a common issue where your machine is in a "non-zero" time zone which prevents the inner logic of the cache to manage your expirations correctly.
From the docs
To avoid possible issues with local time such as changes from standard time to daylight saving time, use UtcNow rather than Now for this parameter value.
https://msdn.microsoft.com/en-us/library/4y13wyk9(v=vs.110).aspx
Adding more information as follow up on why the behavior may change between servers.
This change in behavior may be caused by having .NET 4.7 installed on the machine. The article linked below says that Microsoft will fix this in the next version of .NET and in the next hotfix.
Quoting parts of the Microsoft page:
Symptoms:
Assume that you have Microsoft .NET Framework 4.7 installed on a
computer. When you try to insert items into the Cache object by using
the Cache.Insert (string, object, CacheDependency, DateTime, TimeSpan)
Insert overload method, you may notice that the inserted Cache items
expire much earlier or later than the specified DateTime (expiration
time).
Cause:
The internal implementation of System.Web.Caching.Cache uses
Coordinated Universal Time (UTC) time-stamp for absolute expiration.
But this particular Cache.Insert (string, object, CacheDependecy,
DateTime, TimeSpan) Insert overload method does not make sure whether
the expiration time is converted to UTC. Therefore, expiration for
items that are inserted into the Cache object by using this overload
will occur earlier or later than expected, depending on the computer
time zone difference from Greenwich Mean Time (GMT).
Workaround:
The temporary workaround for this issue is to use either the Cache.Add method or a different Cache.Insert overload method.
Resolution:
This issue will be fixed in the next version of the .NET Framework, and will also be available in the next hotfix for the .NET Framework 4.7.
References:
https://support.microsoft.com/en-us/help/4035412/fix-expiration-time-issue-when-you-insert-items-by-using-the-cache-ins
http://vimvq1987.com/2017/08/episerver-caching-issue-net-4-7/
I was wondering if anyone can offer any pointers on this one. I'm trying to return ItemStats from the Tridion UGC web service but I'm getting the following error when trying to bind the results:-
The closed type TridionWebUGC.CDS.ItemStat does not have a corresponding LastRatedDate settable property.
An example of code is:-
WebServiceClient ugcCall2 = new WebServiceClient();
Uri uri = new Uri("http://new.ugc.service/odata.svc");
CDS.ContentDeliveryService cds = new CDS.ContentDeliveryService(uri);
var myItemStats = cds.ItemStats.Where(p => p.PublicationId == 68 && p.Id == 17792 && p.Type==16);
I can get comments and ratings with no problem. E.g.
var myComments = cds.Comments.Where(p => p.ItemId == 17805).OrderBy(p => p.CreationDate);
It's just ItemStats that are giving me an issue. Anybody any ideas?
Thanks
John
Unfortunately, the metadata of the UGC WebService is not correct in regards to the ItemsStats. For you it means that the webservice metadata does not expose the fact that the ItemStat entity contains the LastRatedDate property. This makes your .NET proxies not to be aware of this property and makes your query fail.
To work-around this defect you have two option:
Add to your service the following property: cds.IgnoreMissingProperties = true;. Advantage of this approach is that you're done with it in 2 sec. Disadvantage is that you will not be able to access that property (in case you actually use it);
Modify the proxies generated by Visual Studio and manually add that property to the ItemStat class. Advantage of this approach is that you will be able to access the property from your project. Disadvantage is that it's totally not manageable from the coding point of view, you need to be careful when you upgrade or regenerate the proxies and it's easy to make a mistake while manually adding the property.
Note 1: to access the metadata of your webServer from the browser your can go to /odata.svc/$metadata.
Note 2: on a closer look there are 2 properties missing from the webService metadata: LastRatedDate and LastCommentedDate.
Hope this helps.
I created(in last stage) a ASP.NET website which requires database communications, So we created WCF services to connect to the database. If there is a Select statement those service returns DataTable.
Services are working fine and website also working fine
At the time of API creation i don't know that windows phone sdk does not support the DataTables.
I read some where that Windows Phone SDK doesn't support DataTable, i checked in my Visual Studio also there is no class called DataTable in System.Data namespace.
I am new to Windows Phone.
But now we want to create a WINDOWS PHONE APP which also works same as Website, so we want to use the existing API(WCF Service).
is there is any way to accomplish this task. most of the methods return type is DataTable.
we don't want to create two API's(means services). What should I do?
How to create a Service which works for both Windows Phone and Website.
we are ready to change the change the API and according to that ready to update Website also?
thanks
Just changed the API to return Stream instead of DataTable
System.IO.StringWriter reader = new System.IO.StringWriter();
dt.WriteXml(reader, XmlWriteMode.WriteSchema);//dt is datatable
return reader;
in website small minor changes, reading the stream and assign it to a datatable
StringReader xmlReader = new StringReader(stream);
DataTable dt = new DataTable();
dt.ReadXml(xmlReader);
Update:
This approach is not suggestible(this was my first web service application), I suggest to use JSON/XML responses(with returning DTOs) instead of returning DataTable..
Following links might land you in right direction.
http://www.codeproject.com/Articles/105273/Create-RESTful-WCF-Service-API-Step-By-Step-Guide
http://mono.servicestack.net/ServiceStack.Hello/
Not sure why you used datatable. Do you mean dataset?
They are all XML under the covers. Try parsing them. Try something like this:
var resultNewDataSet = XElement.Parse(xmlContent);
var result = resultNewDataSet.Descendants("Table")
.Select(t => new
{
aaa = t.Descendants("aaa").First().Value,
bbb = t.Descendants("bbb").First().Value
});
foreach (var res in result)
{
System.Diagnostics.Debug.WriteLine("aaa: " + res.aaa + " / bbb: " + res.bbb);
}