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• Model Binding with Parent/Child Relationship

  - by user296297

  I'm sure this has been answered before, but I've spent the last three hours looking for an acceptable solution and have been unable to find anything, so I apologize for what I'm sure is a repeat. I have two domain objects, Player and Position. Player's have a Position. My domain objects are POCOs tied to my database with NHibernate. I have an Add action that takes a Player, so I'm using the built in model binding. On my view I have a drop down list that lets a user select the Position for the Player. The value of the drop down list is the Id of the position. Everything gets populated correctly except that my Position object fails validation (ModelState.IsValid) because at the point of model binding it only has an Id and none of it's other required attributes. What is the preferred solution for solving this with ASP.NET MVC 2? Solutions I've tried... Fetch the Position from the database based on the Id before ModelState.IsValid is called in the Add action of my controller. I can't get the model to run the validation again, so ModelState.IsValid always returns false. Create a custom ModelBinder that inherits from the default binder and fetch the Position from the database after the base binder is called. The ModelBinder seems to be doing the validation so if I use anything from the default binder I'm hosed. Which means I have to completely roll my own binder and grab every value from the form...this seems really wrong and inefficient for such a common use-case. Solutions I think might work, I just can't figure out how to do... Turn off the validation for the Position class when used in Player. Write a custom ModelBinder leverages the default binder for most of the property binding, but lets me get the Position from the database BEFORE the default binder runs validation. So, how do the rest of you solve this? Thanks, Dan P.S. In my opinion having a PositionId on Player just for this case is not a good solution. There has to be solvable in a more elegant fashion.

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• Is there an elegant, industry standard way of implementing substr in C?

  - by Gary Willoughby

  Is there an elegant, industry standard way of implementing substr() in C? or is it a case of every developer reinventing the wheel?

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• Controlling IFrame load time

  - by Venki

  Is there a way for me to control the load time of IFrames within my page. Consider the case where I have an HTML page, within which there are 2 IFrames being rendered. Is it possible to control the time it takes for the IFrames to load? In the sense, if the IFrame does not load within 10 secs, then I want to abort the loading of the iFrame.

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• .net directoryService returns less result as compared to the CSVDE

  - by kapilg

  I am using .net directoryService to execute an LDAP query and retrieve the users from AD. but when I run the same query using CSVDE tool , i get more no of result as compared to the directorySerrvice. in both the case, i'm using thesame credential to run the application and CSVDE. does any one have any idea if I need to set some flag or any thing while using directoryservice. any pointer will be helpful.

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• loading crystal report in windows xp

  - by Sumit Chawla

  I have prepared a wpf application using visual studio 2010 in windows 7 which includes crystal report viewer. I tried to run the application on another windows 7 pc with CR runtime installed, it worked properly. I tried the same thing with windows xp but everytime the crystal report loads it gives an unhandled exception and the whole app stops working and closes. what to do in this case? or give me some suggestions how to make work with window-XP

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• Can I use C# 4.0 in VS2008 / ASP.NET 3.5 application ?

  - by this. __curious_geek

  Can I certainly do this ? If this is possible how do we do this ? What language features of C# 4.0 are tightly bound to the CLR of .net 4.0 framework if any? In case if no features are bound to CLR4.0 can we really use C#4.0 in a .Net3.5 application ?

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• how to differentiate the 480X800 and 480X854 screens in android?

  - by Praveen Chandrasekaran

  how to differentiate the 480X800 and 480X854 screens. we have an option to put the one image at the hdpi folder.in my case 480X800 image is does not support for the 480X854 image. it shows a blank space at the bottom.Any Idea?

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• Multiple conditions on select query

  - by stats101

  I have a select statement and I wish to calculate the cubic volume based on other values within the table. However I want to check that neither pr.Length_mm or pr.Width_mm or pr.Height_mm are NULL prior. I've looked at CASE statements, however it only seems to evaluate one column at a time. SELECT sa.OrderName, sa.OrderType, pr.Volume_UOM ,pr.Length_mm*pr.Width_mm*pr.Height_mm AS Volume_Cubic ,pr.Length_mm*pr.Width_mm AS Volume_Floor ,pr.Length_mm ,pr.Height_mm ,pr.Width_mm FROM CostToServe_MCB.staging.Sale sa LEFT JOIN staging.Product pr ON sa.ID = pr.ID

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• Remove a layer from a ggplot2 chart

  - by Erik Shilts

  I'd like to remove a layer (in this case the results of geom_ribbon) from a ggplot2 created grid object. Is there a way I can remove it once it's already part of the object? library(ggplot2) dat <- data.frame(x=1:3, y=1:3, ymin=0:2, ymax=2:4) p <- ggplot(dat, aes(x=x, y=y)) + geom_ribbon(aes(ymin=ymin, ymax=ymax), alpha=0.3) + geom_line() # This has the geom_ribbon p # This overlays another ribbon on top p + geom_ribbon(aes(ymin=ymin, ymax=ymax, fill=NA))

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• Looping on a closed range

  - by AProgrammer

  How would you fix this code? template <typename T> void closed_range(T begin, T end) { for (T i = begin; i <= end; ++i) { // do something } } T is constrained to be an integer type, can be the wider of such types and can be signed or unsigned begin can be numeric_limits<T>::min() end can be numeric_limits<T>::max() (in which case ++i will overflow in the above code) I've several ways, but none I really like.

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• Should I merge .pbxproj files with git using merge=union?

  - by Ortwin Gentz

  I'm wondering whether the merge=union option in .gitattributes makes sense for .pbxproj files. The manpage states for this option: Run 3-way file level merge for text files, but take lines from both versions, instead of leaving conflict markers. This tends to leave the added lines in the resulting file in random order and the user should verify the result. Normally, this should be fine for the 90% case of adding files to the project. Does anybody have experience with this?

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• Do JVMs on Desktops Use JIT Compilation?

  - by destructo_gold

  I always come across articles which claim that Java is interpreted. I know that Oracle's HotSpot JRE provides just-in-time compilation, however is this the case for a majority of desktop users? For example, if I download Java via: http://www.java.com/en/download, will this include a JIT Compiler?

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• How do you manage schema upgrades to a production database?

  - by Mark Harrison

  This seems to be an overlooked area that could really use some insight. What are your best practices for: making an upgrade procedure backing out in case of errors syncing code and database changes testing prior to deployment mechanics of modifying the table etc...

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• Using RegEx to Identify parts of a Database Connection String

  - by David_Jarrett

  I'm trying to get to grips with regular expressions: I have a database connection string and I'd like to use a regular expression to identify specific Keys and Values within it. For example server=foo;database=bar;uid=foo;pwd=bar I'd like something to return "database=bar;" using the 'database' key to identify it, ideally it would be case insensitive. I can do this using normal code, but I think that this is exactly the sort of thing for which regular expressions were designed.

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• Why toInteger :: Int -> Integer is lazy?

  - by joppux

  I have the following code: {-# NOINLINE i2i #-} i2i :: Int -> Integer i2i x = toInteger x main = print $ i2i 2 Running GHC with -ddump-simpl flag gives: [Arity 1 NoCafRefs Str: DmdType U(L)] Main.i2i = GHC.Real.toInteger1 Seems that conversion from Int to Integer is lazy. Why is it so - is there a case when I can have (toInteger _|_ ::Int) /= _|_ ?

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• ASP.NET MVC Route based on Web Browser/Device (e.g. iPhone)

  - by Alex

  Is it possible, from within ASP.NET MVC, to route to different controllers or actions based on the accessing device/browser? I'm thinking of setting up alternative actions and views for some parts of my website in case it is accessed from the iPhone, to optimize display and functionality of it. I don't want to create a completely separate project for the iPhone though as the majority of the site is fine on any device. Any idea on how to do this?

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• How Can i Populate Bulk of Data from a DB Table into a Combo Box? - C#.NET

  - by peace

  MenuItem menus = new MenuItem(); GridView1.DataSource = menus.GetDataTable(); GridView1.DataBind(); menus.GetDataTable() returns a DataTable. In the above case, we are returning to GridView. I need to populate the data into a combo box. How can i do it? NOTE: Assume GetDataTable only returns records of a single column.

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• Is application is runned under IIS or VS web-server

  - by zerkms

  How to determine whether asp.net (mvc2) application is running under IIS (7) or VS internal web-server? Clarification why I need this: I'm composing different dependency graph for IoC-container (ninject) that depends on the workaround (develop - when local VS, and production - when IIS) Or may be another great solution so I can simply differ 3 workarounds: local (VS), test server (IIS) or production server (IIS). How in this case to differ the server? By PC name?

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• How to alter the Browser's Refresh Event and trigger a custom function?

  - by Starx

  As you all know, when we hit the refresh button, the entire page starts to reload. But I dont that, I only want to refresh some portions, which need to be refresh in case of a need. I know, I can use ajax to reload a piece of content. But I want to attach this ajax function while the user clicks the refresh button or presses F5 or presses Ctrl+F5.

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• Mercurial permament delete?

  - by Arnis L.

  I commit some 3rd party tools that i decided not to use afterwards and removed them from hg again. Thing that i dislike - they are still kept in history. Normally this is a good thing of course, but for this particular case - that's just a waste of space. What are options to intentionally mess around with hg repository history and weed it out?

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• SSL and WSGI apps - Python

  - by RadiantHex

  Hi folks, I have a WSGI app that I would like to place behind SSL. My WSGI server is gevent. What would a good way to serve the app through SSL in this case be?

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• django import forms basic doubt

  - by webvulture

  I have seen people writing forms in mdoels or in forms.py? Is it the case I can actually write it anywhere say in blah.py and just import it wherever necessary?

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• Does the usage of interfaces slow down programs?

  - by Olga

  Is it true that interfaces slow down programs? I have heard that this is the case because during running time each during each usage of an object implementing this interface the decision has to be made which class implementing the interface this object belongs to. I am especially interested in an answer for C++, but also in general. And if this is true, some numbers would be helpful, too. Thank you very much!

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• who convert flat file xml in biztalk server?

  - by Anish

  Hi, I am new to BizTalk server. So if this question is so obvious, plz forgive :( I have a flat file from one application, which i have to send to a biztalk server. In that case which component in my biztalk server converts my flat file to xml. Also I heard that I have to create an input schema(.xsd file), why i need an input message schema? Thanks in advance!

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• cosine similarity problem

  - by jaskirat

  hi.... i have calculated the tf-idf values of terms of document 1 and document 2..now i dont know how to use these tf-idf values...basically i want to find similarity between two documents(in my case are webpages)..can any body tell how to implement cosine similarity, jaccard coefficient to find similarity...c# code would be appreciated..pls help...thanks

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