nested properties - Page 306

Binding a nullable int to an asp:TextBox

- by Slauma

I have a property int? MyProperty as a member in my datasource (ObjectDataSource). Can I bind this to a TextBox, like <asp:TextBox ID="MyTextBox" runat="server" Text='<%# Bind("MyProperty") %>' /> Basically I want to get a null value displayed as blank "" in the TextBox, and a number as a number. If the TextBox is blank MyProperty shall be set to null. If the TextBox has a number in it, MyProperty should be set to this number. If I try it I get an exception: "Blank is not a valid Int32". But how can I do that? How to work with nullable properties and Bind? Thanks in advance!

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Datanucleus/JDO Level 2 Cache on Google App Engine

- by Thilo

Is it possible (and does it make sense) to use the JDO Level 2 Cache for the Google App Engine Datastore? First of all, why is there no documentation about this on Google's pages? Are there some problems with it? Do we need to set up limits to protect our memcache quota? According to DataNucleus on Stackoverflow, you can set the following persistence properties: datanucleus.cache.level2.type=javax.cache datanucleus.cache.level2.cacheName={cache name} Is that all? Can we choose any cache name? Other sources on the Internet report using different settings. Also, it seems we need to download the DataNucleus Cache support plugin. Which version would be appropriate? And do we just place it in WEB-INF/lib or does it need more setup to activate it?

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XslCompiledTransform eats my DOCTYPE!

- by pukipuki

Made a xslt template with output instruction for <DOCTYPE> <xsl:output media-type="text/html" method="html" encoding="windows-1251" doctype-public="-//W3C//DTD XHTML 1.1//EN" doctype-system="http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd" omit-xml-declaration="yes"/> In xsl-debug I'm receiving right <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> on top of the html. But when I'm using XslCompiledTransform etc.. output starts from <html xmlns="http://www.w3.org/1999/xhtml">. So, Doctype is missed. Why? Right properties of XslCompiledTransform initialized just like I set in . How can I get DOCTYPE from XslCompiledTransform?

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NHibernate illegal access to loading collection error

- by Rob

I'm getting the error "Illegal acces to loading collection" when i'm trying to get a list of variants belonging to a certain product. The NHibernate mapping is as below; <list name="Variants" lazy="false" cascade="save-update" inverse="false" table="PluginProduct_ProductVariant"> <key column="ProductId" /> <index column="Ordinal" /> <one-to-many class="Plugin.Product.Business.Entities.Variant, Plugin.Product" /> </list> </joined-subclass> I already tried chancing the laziness and inverse properties as suggested in other topics on this site, but they didn't do the trick.

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Effective file permissions tool's api in windows

- by apoorv020

Starting from Windows Server 2003, Windows included a new tool which calculates the effective permissions for a user (basically it resolves all groups access and takes care of all "deny" permissions as well). An example in point is that a user A belongs to groups B and C. B has been denied read permissions on a file F, while C has been allowed read and write permissions on the file and I want to calculate the effective permissions user A has on file F. This tool is available on Windows Server 2003,Vista,7 and Server 2008 by right clicking on a file and going to properties - security - advanced - effective permissions. What I need is an API in C# which does the same job. The most common FILE API returns access rules (class FileAccessRules), but there seems to be no direct way to calculate effective permissions from these set of access rules. Note: I do not want to process effective permissions in the code if at all possible, but am ready to do so as a last resort.

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how to set a pop up menu on a particular table view item

- by Moayyad Yaghi

hello i have a QTableView , and i need to show a popup menu that shows the item properties . i need to set the context menu to apear only when you right click over a particular items in that tableview. but coudln't find a way to do it . i can set the context menu to appear when your over the table . i cant have it for each item . so how do i set the context menu over items in the tableview ? please tell me if the idea was not clear enough thanks in advance

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WPF binding and pointers

- by Eran

hey guys, I have a WPF application that contains windows with few user controls and Coordinator object. the window and all its user controls pointing to an object, which instace is in the Coordinator, by thier DataContext. the problem is that I want to change this object (e.g. create new object()) in the Coordinator but I want all the dataContexts to point to the new object. I tried to send the object by ref to the window constructor but it didn't help. any idea about how can I rewrite the memory location that all pointers are pointing to? (I don't want to repalce the properties in object since its a lot of work nor to use a middle object that points to the replaced object) Thanks Eran

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Efficiently Combine MatchCollections in .Net Regex

- by Laramie

In the simplified example, there are 2 Regular Expressions, one case sensitive, the other not. The idea would be to efficiently create an IEnumerable collection (see "combined" below) combining the results. string test = "abcABC"; string regex = "(?<grpa>a)|(?<grpb>b)|(?<grpc>c)]"; Regex regNoCase = new Regex(regex, RegexOptions.IgnoreCase); Regex regCase = new Regex(regex); MatchCollection matchNoCase = regNoCase.Matches(test); MatchCollection matchCase = regCase.Matches(test); //Combine matchNoCase and matchCase into an IEnumerable IEnumerable<Match> combined= null; foreach (Match match in combined) { //Use the Index and (successful) Groups properties //of the match in another operation } In practice, the MatchCollections might contain thousands of results and be run frequently using long dynamically created REGEXes, so I'd like to shy away from copying the results to arrays, etc. I am still learning LINQ and am fuzzy on how to go about combining these or what the performance hits to an already sluggish process will be.

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Keystrokes in Winforms app causing window to close unexpectedly

- by Paul Sasik

I have a strange issue that has arisen recently: Whenever I enter text, even a single character, into a textbox in any Form in my application it causes the form and its parent to close. I've checked for the following so far: Errant/mis-assigned event handlers that may be interpreting a keystroke as a Form cancel I am using keypreview in several windows but debugging shows this to not be a cause Happens in any form of the application Happens even with brand new text boxes dropped on the form Tried removing the WithEvents declaration from text box declarations (VB.NET) The result is DialogResult.Cancel when I break the code after Show or ShowDialog The forms do not use AcceptButton or CancelButton properties (set to none) Note: I am modifying a large codebase with a lot of code that I have yet to touch What else could be causing this strange behavior?

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How to get the PrintDocumentImageableArea for a given PrintQueue without going through PrintDialog?

- by Patrick Klug

From MSDN (link): The type PrintDocumentImageableArea has no public constructor. Hence, the variable documentImageableArea must be declared and assigned to Nothing and only then passed to the method. This method displays a PrintDialog requiring input from the user. After the user has selected a printer, paper size, and orientation and closed the dialog, documentImageableArea points to an actual object and its properties are initialized. I have my custom print dialog and need to get the PrintDocumentImageableArea of a given PrintQueue and PrintTicket! (I need the margin's I need to apply) From what I can gather it is quite common for anything but the most basic applications to use their own custom print dialog. There must be a way to get to this information!? Any input appreciated!

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Positiong loaded object based on root stage instead of MC that is loaded from root.

- by Hwang

I have a root stage, and a MC that is called from the root stage.Now from that MC, i will called in another MC2, and I wanted to placed the MC in the center of the stage. The reason I could not use normal ADDED_TO_STAGE at MC and define the center is because MC is not place in the exact position of the root stage (as in x, y=0). So if I would target MC2 at MC stage center, it would not be the exact center of the root stage/screen. How can I called the root stage properties rather than adding MC2 into the stage?

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How to troubleshoot deallocation of object in uitableview?

- by 4thSpace

I have a table view with tall cells. About 300 in height. The cells are custom and have an associated nib. In cellForRowAtIndexPath, I access an object in an array using indexPath.row. The object has properties, which I assign to labels on the custom cell. This works fine for the first two cells. Once I scroll enough for the third cell to get created, the app crashes. I have NSZombieEnabled set and here is the output: 2010-04-19 21:48:13.360 MyApp[54463:207] *** -[CALayer release]: message sent to deallocated instance 0xfc4e50 (gdb) continue 2010-04-19 21:48:18.382 MyApp[54463:207] *** NSInvocation: warning: object 0xfc4e50 of class '_NSZombie_CALayer' does not implement methodSignatureForSelector: -- trouble ahead 2010-04-19 21:48:18.383 MyApp[54463:207] *** NSInvocation: warning: object 0xfc4e50 of class '_NSZombie_CALayer' does not implement doesNotRecognizeSelector: -- abort (gdb) continue Program received signal: “EXC_BAD_ACCESS”. (gdb) I'm not sure what is deallocated. How can I trace this to the source?

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Initializing a List c#

- by Mohan

List<Student> liStudent = new List<Student> { new Student { Name="Mohan",ID=1 }, new Student { Name="Ravi",ID=2 } }; public class Student { public string Name { get; set; } public int ID { get; set; } } Is there other way to write this? I am a newbie. I want to make instance of student class first and assign properties in list.

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Javascript setters/getters

- by Martin Hansen

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Read and write into a file using VBScript

- by Maddy

How can we read and write some string into a text file using VBScript? I mean I have a text file which is already present so when I use this code below:- Set fso = CreateObject("Scripting.FileSystemObject" ) Set file = fso.OpenTextFile("C:\New\maddy.txt",1,1) This opens the file only for reading but I am unable to write anything and when I use this code:- Set fso = CreateObject("Scripting.FileSystemObject" ) Set file = fso.OpenTextFile("C:\New\maddy.txt",2,1) I can just use this file for writing but unable to read anything. Is there anyway by which we can open the file for reading and writing by just calling the OpenTextFile method only once. I am really new to VBScript. I am only familiar with C concepts. Is there any link to really get me started with VBScript? I guess I need to have a good knowledge of the objects and properties concepts.

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Flash Error #1010

- by c11ada

hey all, when i run my flash file (test it) in the output panel i get the following error TypeError: Error #1010: A term is undefined and has no properties. i read some where, that this was caused because one of the variables is set to null. after looking at my code i found out that the following line was causing this output arrSelectedIndex[i] = -1; this is later on used as the selected index in a group of radio buttons. my question is, would having the selected index set to -1 be an issue ? thanks

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How listen for UIButton state change?

- by morticae

I'm extending UIButton with generic functionality to change certain appearance attributes based on the displayed title. In order to do this, I need to detect and respond to changes in the "state" property. This is so I make sure the appearance is adjusted properly if the user has set different titles for different states. I assumed I would need to use some sort of KVO like the following: [self addObserver:self forKeyPath:@"state" options:NSKeyValueObservingOptionNew context:nil]; But this does not seem to fire the observeValueForKeyPath:... method for @"state" or @"currentTitle". I assume this is because UIButton does not implement the KVO pattern for those properties. I do not want to just listen for clicks. Those events cause a state change, but are not the only potential causes. Does anyone know a way to listen to and respond to state changes of a UIButton? Thanks

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PHP intersection between array and object

- by nickf

I have an object, let's say it's like this: class Foo { var $b, $a, $r; function __construct($B, $A, $R) { $this->b = $B; $this->a = $A; $this->r = $R; } } $f = new Foo(1, 2, 3); I want to get an arbitrary slice of this object's properties as an array. $desiredProperties = array('b', 'r'); $output = magicHere($foo, $desiredProperties); print_r($output); // array( // "b" => 1, // "r" => 3 // )

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Cant find the android keytool

- by Tim

Hi all I am trying to follow the Android mapping tutorial and got to this part where I had to get an API key http://code.google.com/android/add-ons/google-apis/mapkey.html#getdebugfingerprint I have found my debug.keystore but there does not appear to be a keytool application in the directory: C:\Documents and Settings\tward\.androidls adb_usb.ini avd debug.keystore repositories.cfg androidtool.cfg ddms.cfg default.keyset There is also no keytool in this directory: C:\Android\android-sdk-windows\toolsls AdbWinApi.dll apkbuilder.bat etc1tool.exe mksdcard.exe AdbWinUsbApi.dll ddms.bat fastboot.exe source.properties Jet dmtracedump.exe hierarchyviewer.bat sqlite3.exe NOTICE.txt draw9patch.bat hprof-conv.exe traceview.bat adb.exe emulator.exe layoutopt.bat zipalign.exe android.bat emulator_NOTICE.txt lib I am using eclipse as my editor and believe that I have downloaded all the latest SDK What am I doing wrong? Thanks for your time Tim

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How to add an Interbase connection pool to glassfish?

- by kgrad

Hi, I am attempting to add an Interbase connection pool to GlassFish v3 to use EJB 3.1 in a project. The glassfish log appears to be connecting to my database properly, it spits out all my table names and indices. However, I get an error INFO: fetching database metadata SEVERE: could not complete schema update java.lang.NullPointerException at interbase.interclient.ResultSet.local_Close(Unknown Source) ... And when I ping the connection pool from within Glassfish I receive "Ping failed Exception - null". I have the following properties set with my connectionpool: resource type: javax.sql.DataSource Datasource Classname: interbase.interclient.DataSource portNumber: 3050 as well as my database info. I can't seem to find information elsewhere. This question is similar but did not receive an answer. thanks.

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Better Alternative to Case Statement

- by Kyle Rozendo

Hi All, I currently have a switch statement that runs around 300 odd lines. I know this is not as giant as it can get, but I'm sure there's a better way to handle this. The switch statement takes an Enum that is used to determine certain properties that pertain to logging. Right now the problem sets in that it is very easy to leave out an enumeration value and that it will not be given a value as it is not in the switch statement. Is there an option one can use to ensure that every enumeration is used and given a custom set of values it needs to do its job? Thanks, Kyle

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User Control inherit from ListBox in Wpf?

- by Rev

Hi. I want to make a user Control in WPf with same properties and events like ListBox.(can add items , remove them , selecting ,...) on way in windows App is use a user control which is inherit form ListBox. but in WPF I don't know how make User Control inherit from ListBox (or other WPF Control)!!! I write this code but it had an exception public partial class InboxListItem : ListBox { public InboxListItem() { InitializeComponent(); } and It's Xaml file <UserControl x:Class="ListBoxControl.InboxListItem" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:myTypes="clr-namespace:ListBoxControl" />

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Asp.NET 1.1 HttpResponse headers

- by Yeti

Hi, i have part of Asp.NET 1.1 project. I work with remote site, which works incorrect in some cases - sometimes it write incorrect Content-Encoding header. In my code i get HttpResponse from this remote site. And if Content-Encoding header is equals, for example, "gzip", i need to set Content-Encoding header to "deflate". But there is no properties or methods in HttpResponse class to get Content-Encoding header. Content-Encoding property returns, in my case, "UTF-8". In Watch window i see _customProperties field, which contain wrong string value. How can i change header value with Asp.NET 1.1?

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IDataServiceMetadataProvider / ResourceType.... what for dynamic types with no CLR type?

- by TomTom

Hello, I try to expose a database via ADO RIA for which we have only an ODBC based interface. The "database" is a server and new elements are developped all the time, so I would like the server to check metadata at start (using the odbc schema methods) and then expose what he finds via RIA services.... clients can the nregenerate when they need access to new elements. As such, I dont ahve any CLR types for all the tabled developped. ResourceType tableType = new ResourceType( typeof(object), ResourceTypeKind.EntityType, null, "Martini", table_name, false ); tableType.CanReflectOnInstanceType = false; I can somehow not put in NULl as CLR element type, and entering typeof(object) seems to result in reflection errors when trying to access the properties. Any documentation on how to do that? I dont really want to get into having types... though if I have to, I probably will dynamically generate some via bytecode emit.

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Building Visual studio like application, need inputs..

- by akjoshi

Hi, I am working on a Visual studio like application i.e. hava a tolbox, an editor and property grid similar to VS. ser can drag and drop the controls(custom and third party) to the editor window and perform operations like resize, move, align, group etc.; Properties of that control needs to be displayed in property grid and user can update them from there. As per my current understanding I will have to extend the Canvas to create my own editor and and Interface for controls which it supports; Each supported control will have to implemnt this interface so that it can be placed in our editor. Something similar to this - http://www.codeproject.com/KB/WPF/WPFDiagramDesigner_Part4.aspx Looking forward for any kind of help, comment or links.

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Search found 11634 results on 466 pages for 'nested properties'.

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- by Slauma

- by Thilo

- by pukipuki

- by Rob

- by apoorv020

- by Moayyad Yaghi

- by Eran

- by Laramie

- by Paul Sasik

- by Patrick Klug

- by Hwang

- by 4thSpace

- by Mohan

- by Martin Hansen

- by Maddy

- by c11ada

- by morticae

- by nickf

- by Tim

- by kgrad

- by Kyle Rozendo

- by Rev

- by Yeti

- by TomTom

- by akjoshi

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