I was given a cube with all relevant information. Now, I want to query cube and get the data through .net EDMX framework.
Could anyone help me out from where I should start on this? I am really confused and have no idea how to use MDX with edmx.
Is it possible to get the data from Cubes without using MDX using EDMX with LINQ?
It's not possible currently, there is a company who do a version of LinqToMdx, I think they've posted on here before, I don't think they go via the EDMX route exactly.
Standard method in .Net is ADOMD.Net http://msdn.microsoft.com/en-us/library/ms123477.aspx
A nice way of getting data is via the CellSet class, as it contains cells of both the native value and the formatted string for measures:
CellSet adomdCellSet;
using (var adomdConnection = new AdomdConnection())
{
adomdConnection.ConnectionString = "YourConnectionString";
adomdConnection.Open();
var adomdCommand = adomdConnection.CreateCommand();
adomdCommand.CommandText = "YourMDXQuery";
adomdCellSet = adomdCommand.ExecuteCellSet();
}
return adomdCellSet;
Edit: Found the site of the guys who wrote a provider - I can't vouch for them as I've never used it, but it looks interesting http://www.agiledesignllc.com/Products.htm
Related
I am trying to list the view template’s properties so we can compare them with another old template.
For example what model elements are hidden or have overrides in a given template or which Revit links have been hidden or overridden in a given template.
View Template
(https://www.google.com/search?q=view+template+revit&rlz=1C1GGRV_enUS770US770&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjLndrd2cTbAhVESq0KHX1cAPwQ_AUICygC&biw=1536&bih=824#imgrc=Q0v-pV7Nxl4kfM:)
I’m looking to devise a View Template Compare tool and access to the owner and creator of them.
public void ApplyViewTemplateToActiveView()
{
Document doc = this.ActiveUIDocument.Document;
View viewTemplate = (from v in new FilteredElementCollector(doc)
.OfClass(typeof(View))
.Cast<View>()
where v.IsTemplate == true && v.Name == "MyViewTemplate"
select v)
.First();
using (Transaction t = new Transaction(doc,"Set View Template"))
{
t.Start();
doc.ActiveView.ViewTemplateId = viewTemplate.Id;
t.Commit();
}
}
With Revit API you can access with:
GetTemplateParameterIds Method / ViewTemplateId Property
The Revit API exposes almost all the ViewTemplate properties.
For instance this method returns all the Visibility/Graphic Overrides for a specific category:
https://apidocs.co/apps/revit/2019/ed267b82-56be-6e3b-0c6d-4de7df1ed312.htm
The only thing I couldn't get for a ViewTemplate are the "includes", but all the rest seems to be there.
Update:
The list or properties "not included" can be retrieved with GetNonControlledTemplateParameterIds().
Yes, and no.
Yes, I guess you can use Forge Model Derivative API to export RVT file and then build a dashboard around the View Templates data. That's assuming that View Templates data actually gets exported when the model is translated. That data is not attached to any geometry so I would not be surprised if it was skipped. The question here is why? This is like renting a 16-wheel truck to move a duffel bag across the street.
No, if your intention is to directly interact with the RVT model. Forge can view it, but to push anything back or request changes to the model, is not available yet. Then again, I am not even sure that the view template data is available via model derivative exports.
This brings me another alternative. Why not just collect the data using Revit API, the standard way and then push it out to a Database and build on top of that? There is no reason to employ Forge for any of that.
Thanks Jeremy, I had dig into your amazing website and also some solution that Konrad post in the Dynamo Forum about this. In Revit seems pretty achievable, you filter the View that is View Template and then extracts these properties, is it correct?.
I am wondering if someone can point me in the right direction with Forge.
Some amazing guys are developing a BQL https://www.retriever.works/.
BQL(Building Query Language) is a query language for buildings, similar to how SQL is a query language for databases. It is fast and flexible. BQL helps improve efficiency for QA/QC (quality assurance and quality control), and building data extraction without leaving Revit. I am also trying these and I would like to understand if there are some works where I could start with Forge next week about this.
This question is about sorting by Pointer object in Parse.com cloud code.
I have an Class A object, and A.pointer is a Pointer object which point to Class B.
And I want to sort A in database by B.sortfield.
I've tried to use innerQuery like below, but seems not work.
var query = new Parse.Query(A);
var innerQuery = new Parse.Query(B);
innerQuery.descending('sortfield');
query.matchesQuery("pointer", innerQuery);
query.......
Could anybody tell me how to do it? tnx!
Found below answers, Parse does not support such query. It really disappointed me.
sort-a-query-based-on-a-data-in-another-table
and
rest-api-sorting-query-through-a-pointer
I see articles on using SPMetal to generate the .cs file that allows LINQ to work properly. The file I'm talking about inherits from the Microsoft.SharePoint.Linq.DataContext class. How can I use LINQ without recompiling on my production environment, since I would need to regenerate this file using SPMetal on my production environment? I suspect the answer is going to be "can't do it".
I guess I'll use a CAML query instead unless there is some easier way to use LINQ that I am missing.
If the objective is just to query lists using LINQ and you want to avoid such recompilations, do not use SPMetal.
LINQ can be directly used on SPListItemCollection
e.g.
var FindCustomer = from SPListItem Item in Customers.Items
where Item["Orders"] as int == 5
select Item;
//or select new{Title = Item["Title"]}
This does not have hard coded entities but is more flexible. And as long as your list column names remain same, code can be deployed on any environment even if other lists are changing.
Also you can choose to retrieve few chosen field's data instead of retrieving data of all the fields every time.
There is no problem I guess. Personally I have been using Linq for good amount of time. I never generated the cs specifically for production. Is your site different across environments?
Im not sure if I'm missing the point or not, but the DataContext object takes the URL as apart of the constructor, so you should retrieve the URL from config somewhere E.g. database
DataContext teamSite = new DataContext("http://MarketingServer/SalesTeam");
OR use the SPContext object, if your code has a SharePoint context. E.g. in a web part
DataContext teamSite = new DataContext(SPContext.Current.Web.Url);
I have been trying to use dynamic LINQ to Entity in my application for specifying the OrderBy attribute at runtime. However when using the code as described in the majority of documentation:
var query = context.Customer.OrderBy("Name");
I received the following exception:
System.Data.EntitySqlException: 'Name' could not be resolved in the current scope or context. Make sure that all referenced variables are in scope, that required schemas are loaded, and that namespaces are referenced correctly.
After much searching I found this MSDN page:
http://msdn.microsoft.com/en-us/library/bb358828.aspx
Which included the following code example:
ObjectQuery<Product> productQuery2 = productQuery1.OrderBy("it.ProductID");
This prompted me to change my code to the following:
var query = context.Customer.OrderBy("it.Name");
After this the code works perfectly. Would anyone be able to confirm that this is indeed the correct way to get OrderBy working with LINQ to Entity? I can’t believe that the framework would have been implemented in this way, perhaps I have overlooked something?
Thanks, Matt
The it.Name syntax is ESQL and is indeed specific to the EF. There are good reasons to use this sometimes (e.g., collation specifiers), but it's not what I normally do.
Usually I use standard LINQ expressions:
var query = context.Customer.OrderBy(p => p.Name);
You can also use System.Linq.Dynamic, if you download it from Code Gallery, and then your original query:
var query = context.Customer.OrderBy("Name");
...will work.
No nice way, so far
My answer to this question was to create a stored procedure which has parameter to control sorting.
Okay, so I'm doing my first foray into using the ADO.NET Entity Framework.
My test case right now includes a SQL Server 2008 database with 2 tables, Member and Profile, with a 1:1 relationship.
I then used the Entity Data Model wizard to auto-generate the EDM from the database. It generated a model with the correct association. Now I want to do this:
ObjectQuery<Member> members = entities.Member;
IQueryable<Member> membersQuery = from m in members select m;
foreach (Member m in membersQuery)
{
Profile p = m.Profile;
...
}
Which halfway works. I am able to iterate through all of the Members. But the problem I'm having is that m.Profile is always null. The examples for LINQ to Entities on the MSDN library seem to suggest that I will be able to seamlessly follow the navigation relationships like that, but it doesn't seem to work that way. I found that if I first load the profiles in a separate call somehow, such as using entities.Profile.ToList, then m.Profile will point to a valid Profile.
So my question is, is there an elegant way to force the framework to automatically load the data along the navigation relationships, or do I need to do that explicitly with a join or something else?
Thanks
Okay I managed to find the answer I needed here http://msdn.microsoft.com/en-us/magazine/cc507640.aspx. The following query will make sure that the Profile entity is loaded:
IQueryable<Member> membersQuery = from m in members.Include("Profile") select m;
I used this technique on a 1 to many relationship and works well. I have a Survey class and many questions as part of that from a different db table and using this technique managed to extract the related questions ...
context.Survey.Include("SurveyQuestion").Where(x => x.Id == id).First()
(context being the generated ObjectContext).
context.Survey.Include<T>().Where(x => x.Id == id).First()
I just spend 10mins trying to put together an extention method to do this, the closest I could come up with is ...
public static ObjectQuery<T> Include<T,U>(this ObjectQuery<T> context)
{
string path = typeof(U).ToString();
string[] split = path.Split('.');
return context.Include(split[split.Length - 1]);
}
Any pointers for the improvements would be most welcome :-)
On doing a bit more research found this ... StackOverflow link which has a post to Func link which is a lot better than my extension method attempt :-)