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  • Serialization Error:Unable to generate a temporary class (result=1)

    - by ltech
    Running XSD.exe on my xml to generate C# class. All works well except on this property [System.Xml.Serialization.XmlArrayAttribute(Form=System.Xml.Schema.XmlSchemaForm.Unqualified)] [System.Xml.Serialization.XmlArrayItemAttribute("ATTRIBUTES", typeof(DOCUMENTDocumentATTRIBUTES), Form=System.Xml.Schema.XmlSchemaForm.Unqualified, IsNullable=false)] public DocumentATTRIBUTES[][] Document { get { return this.documentField; } set { this.documentField = value; } } I want to try and use CollectionBase, and this was my attempt public DocumentATTRIBUTESCollection Document { get { return this.documentField; } set { this.documentField = value; } } /// <remarks/> [System.SerializableAttribute()] [System.Diagnostics.DebuggerStepThroughAttribute()] [System.ComponentModel.DesignerCategoryAttribute("code")] [System.Xml.Serialization.XmlTypeAttribute(AnonymousType = true)] public partial class DocumentATTRIBUTES { private string _author; private string _maxVersions; private string _summary; /// <remarks/> [System.Xml.Serialization.XmlElementAttribute(Form = System.Xml.Schema.XmlSchemaForm.Unqualified)] public string author { get { return _author; } set { _author = value; } } /// <remarks/> [System.Xml.Serialization.XmlElementAttribute(Form = System.Xml.Schema.XmlSchemaForm.Unqualified)] public string max_versions { get { return _maxVersions; } set { _maxVersions = value; } } /// <remarks/> [System.Xml.Serialization.XmlElementAttribute(Form = System.Xml.Schema.XmlSchemaForm.Unqualified)] public string summary { get { return _summary; } set { _summary = value; } } } public class DocumentAttributeCollection : System.Collections.CollectionBase { public DocumentAttributeCollection() : base() { } public DocumentATTRIBUTES this[int index] { get { return (DocumentATTRIBUTES)this.InnerList[index]; } } public void Insert(int index, DocumentATTRIBUTES value) { this.InnerList.Insert(index, value); } public int Add(DocumentATTRIBUTES value) { return (this.InnerList.Add(value)); } } However when I try to serialize my object using XmlSerializer serializer = new XmlSerializer(typeof(DocumentMetaData)); I get the error: {"Unable to generate a temporary class (result=1).\r\nerror CS0030: Cannot convert type 'DocumentATTRIBUTES' to 'DocumentAttributeCollection'\r\nerror CS1502: The best overloaded method match for 'DocumentAttributeCollection.Add(DocumentATTRIBUTES)' has some invalid arguments\r\nerror CS1503: Argument '1': cannot convert from 'DocumentAttributeCollection' to 'DocumentATTRIBUTES'\r\n"} the XSD pertaining to this property is <xs:complexType> <xs:sequence> <xs:element name="ATTRIBUTES" minOccurs="0" maxOccurs="unbounded"> <xs:complexType> <xs:sequence> <xs:element name="author" type="xs:string" minOccurs="0" /> <xs:element name="max_versions" type="xs:string" minOccurs="0" /> <xs:element name="summary" type="xs:string" minOccurs="0" /> </xs:sequence> </xs:complexType> </xs:element> </xs:sequence> </xs:complexType> </xs:element>

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  • AjaxControlToolkit DropDownExtender inside a table always displays associated panel

    - by Amanda Myer
    I have a textarea that has the ajaxcontroltoolkit dropdownextender associated with it, and a panel that contains a gridview with the options for the user to select from. Here is the code for these items: <asp:UpdatePanel ID="updPnlView" UpdateMode="Conditional" runat="server"> <ContentTemplate> <asp:TextBox ID="txtSiteName" runat="server" TextMode="MultiLine" Rows="4" Columns="33" ReadOnly="true" /></td> <ajaxToolkit:DropDownExtender runat="server" ID="popupdropdown" DropDownControlID="pnlGrid" TargetControlID="txtSiteName" /> <asp:Panel runat="server" ID="pnlGrid" Style="display: none; visibility: hidden" Height="300" ScrollBars="Vertical"> <asp:GridView ID="gvSite" runat="server" AutoGenerateColumns="False" Width="100%" DataKeyNames="ID,FullAddress" DataSourceID="odsSite" OnRowDataBound="gvSite_RowDataBound" ShowFooter="false" ShowHeader="false" OnSelectedIndexChanged="gvSite_SelectedIndexChanged" > <Columns> <asp:CommandField ButtonType="Link" SelectText="Select" ShowSelectButton="true" ItemStyle-CssClass="HiddenColumn" /> <asp:TemplateField > <ItemTemplate> <asp:Label ID="FullAddress" runat="server" Text='<%# Eval("FullAddress").ToString().Replace("\n", "<br/>") %>'></asp:Label> </ItemTemplate> </asp:TemplateField> <asp:CheckBoxField DataField="DisabledFLG" ItemStyle-CssClass="HiddenColumn" /> </Columns> </asp:GridView> </asp:Panel> <asp:ObjectDataSource ID="odsSite" runat="server" OldValuesParameterFormatString="original_{0}" SelectMethod="GetList" TypeName="SOM.DCO.MOGWAI.Bll.SiteManager" onselecting="odsSite_Selecting" SortParameterName="SortExpression" onselected="odsSite_Selected" > <SelectParameters> <asp:Parameter Name="myCriteria" Type="Object" /> <asp:Parameter Name="myIDs" Type="Object" /> <asp:Parameter Name="sortExpression" Type="String" /> <asp:Parameter Name="bypassCache" Type="Boolean" /> </SelectParameters> </asp:ObjectDataSource> </ContentTemplate> </asp:UpdatePanel> When I place this item inside a table (i.e. <table><tr><td>THE CODE ABOVE</td></tr></table>) the panel always shows completely open never hidden. It also completely fills out the available space within the TD and pushes all other text on the page down the screen. If I take the associated controls out of the table, it works as expected. I have duplicated this issue in both Firefox and IE8. What gives?

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  • Jquery Validation Plugin - Require 2 checkboxes

    - by jethomas
    I have a group of 12 checkboxes, all with the same name (name="4_RepPeriods"). I am using the Jquery validation plugin and i want the user to select no more or less than two of these check boxes. If possible I also want the other check boxes to become deactivated (unclickable) after two have been selected. I appreciate the help! Thanks!

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  • Export Core Data Entity as text files in Cocoa

    - by happyCoding25
    Hello, I have an entity in core data that has 2 Attributes. One that is a string called "name", and another one that is a string called "message". I need a method to create text files for all the attributes that the user has added. I wan't the files names to be the name attribute and the contents to be the message attribute. If anyone knows how to do this any help would be great. Thanks for any help

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  • LINQ to XML : A query body must end with a select clause or a group clause

    - by Josh
    Can someone guide me on to repairing the error on this query : var objApps = from item in xDoc.Descendants("VHost") where(from x in item.Descendants("Application")) select new clsApplication { ConnectionsTotal = item.Element("ConnectionsTotal").Value }; It displays a compiler error "A query body must end with a select clause or a group clause". Where am I going wrong? Would appreciate any help.. Thanks. Edit : Here is my XML(haven't closed the tags here)...I need the connectioncount values inside the Application.. - <Server> <ConnectionsCurrent>67</ConnectionsCurrent> <ConnectionsTotal>1424182</ConnectionsTotal> <ConnectionsTotalAccepted>1385091</ConnectionsTotalAccepted> <ConnectionsTotalRejected>39091</ConnectionsTotalRejected> <MessagesInBytesRate>410455.0</MessagesInBytesRate> <MessagesOutBytesRate>540146.0</MessagesOutBytesRate> - <VHost> <Name>_defaultVHost_</Name> <TimeRunning>5129615.178</TimeRunning> <ConnectionsLimit>0</ConnectionsLimit> <ConnectionsCurrent>67</ConnectionsCurrent> <ConnectionsTotal>1424182</ConnectionsTotal> <ConnectionsTotalAccepted>1385091</ConnectionsTotalAccepted> <ConnectionsTotalRejected>39091</ConnectionsTotalRejected> <MessagesInBytesRate>410455.0</MessagesInBytesRate> <MessagesOutBytesRate>540146.0</MessagesOutBytesRate> - <Application> <Name>TestApp</Name> <Status>loaded</Status> <TimeRunning>411642.953</TimeRunning> <ConnectionsCurrent>11</ConnectionsCurrent> <ConnectionsTotal>43777</ConnectionsTotal> <ConnectionsTotalAccepted>43135</ConnectionsTotalAccepted> <ConnectionsTotalRejected>642</ConnectionsTotalRejected> <MessagesInBytesRate>27876.0</MessagesInBytesRate> <MessagesOutBytesRate>175053.0</MessagesOutBytesRate>

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  • .htaccess 301 redirect without GET var

    - by tvgemert
    Hi, For a website I'm currently working on we're redirecting our old URL's permanently to new ones like this: Redirect 301 /oldfile.php http://www.site.com/show/newurl Now I come across this situation in which the old url has a get var like: Redirect 301 /oldfile.php?var=name http://www.site.com/show/newurl This will redirect the oldfile to the new url plus it adds the get var so it redirects to: http://www.site.com/show/newurl?var=name How would I set up this redirect without the get var?

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  • setting through iphone sdk?

    - by senthilmuthu
    hi, My safari browser has been set through proxy user name and pass word,so when i communicate webserver through NSUrl , it returns the data inwhich they have mentioned that we cant reach webserver like that.how can i over come this problem?can i give give user name password for proxy through iphone sdk?is it possible?any help please?

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  • Are there any reserved words in SQLite?

    - by DanM
    Three questions about reserved words: Are there any reserved words in SQLite? If so, what are they? If there are reserved words, is the correct syntax for using one of them as a column or table name still to surround it with brackets? E.g., [User] or [Name]? Are there any implications with using words that are reserved in other flavors of SQL (e.g., SQLServer) but not reserved in SQLite when using ADO.NET to query a SQLite database?

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  • embedded glassfish: java.lang.NoClassDefFoundError: java/util/ServiceLoader

    - by Xinus
    I am trying to embed glassfish inside my java program using embeded api, I am using maven2 and its pom.xml is as follows <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>orh.highmark</groupId> <artifactId>glassfish-test1</artifactId> <version>1.0-SNAPSHOT</version> <packaging>jar</packaging> <name>glassfish-test1</name> <url>http://maven.apache.org</url> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> </properties> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>3.8.1</version> <scope>test</scope> </dependency> <dependency> <groupId>org.glassfish.extras</groupId> <artifactId>glassfish-embedded-all</artifactId> <version>3.1-SNAPSHOT</version> </dependency> </dependencies> <repositories> <repository> <id>maven2-repository.dev.java.net</id> <name>Java.net Repository for Maven</name> <url>http://download.java.net/maven/2/</url> <layout>default</layout> </repository> <repository> <id>glassfish-repository</id> <name>GlassFish Nexus Repository</name> <url>http://maven.glassfish.org/content/groups/glassfish</url> </repository> </repositories> <build> <plugins> <plugin> <groupId>org.codehaus.mojo</groupId> <artifactId>exec-maven-plugin</artifactId> <version>1.1</version> <executions> <execution> <goals> <goal>java</goal> </goals> </execution> </executions> <configuration> <mainClass>orh.highmark.App</mainClass> <arguments> <argument>argument1</argument> </arguments> </configuration> </plugin> </plugins> </build> </project> Program: public class App { public static void main( String[] args ) { System.out.println( "Hello World!" ); Server.Builder builder = new Server.Builder("test"); builder.logger(true); Server server = builder.build(); } } But for some reason it always gives me error as java.lang.NoClassDefFoundError: java/util/ServiceLoader here is the output C:\Users\sunils\glassfish-tests\glassfish-test1>mvn -e exec:java + Error stacktraces are turned on. [INFO] Scanning for projects... [INFO] ------------------------------------------------------------------------ [INFO] Building glassfish-test1 [INFO] task-segment: [exec:java] [INFO] ------------------------------------------------------------------------ [INFO] Preparing exec:java [INFO] No goals needed for project - skipping [INFO] [exec:java {execution: default-cli}] Hello World! [INFO] ------------------------------------------------------------------------ [ERROR] BUILD ERROR [INFO] ------------------------------------------------------------------------ [INFO] An exception occured while executing the Java class. null java/util/ServiceLoader [INFO] ------------------------------------------------------------------------ [INFO] Trace org.apache.maven.lifecycle.LifecycleExecutionException: An exception occured whi le executing the Java class. null at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(Defa ultLifecycleExecutor.java:719) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeStandalone Goal(DefaultLifecycleExecutor.java:569) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(Defau ltLifecycleExecutor.java:539) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHan dleFailures(DefaultLifecycleExecutor.java:387) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegmen ts(DefaultLifecycleExecutor.java:348) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLi fecycleExecutor.java:180) at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:328) at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:138) at org.apache.maven.cli.MavenCli.main(MavenCli.java:362) at org.apache.maven.cli.compat.CompatibleMain.main(CompatibleMain.java:6 0) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl. java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces sorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315) at org.codehaus.classworlds.Launcher.launch(Launcher.java:255) at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430) at org.codehaus.classworlds.Launcher.main(Launcher.java:375) Caused by: org.apache.maven.plugin.MojoExecutionException: An exception occured while executing the Java class. null at org.codehaus.mojo.exec.ExecJavaMojo.execute(ExecJavaMojo.java:345) at org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPlugi nManager.java:490) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(Defa ultLifecycleExecutor.java:694) ... 17 more Caused by: java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl. java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces sorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.codehaus.mojo.exec.ExecJavaMojo$1.run(ExecJavaMojo.java:290) at java.lang.Thread.run(Thread.java:595) Caused by: java.lang.NoClassDefFoundError: java/util/ServiceLoader at org.glassfish.api.embedded.Server.getMain(Server.java:701) at org.glassfish.api.embedded.Server.<init>(Server.java:290) at org.glassfish.api.embedded.Server.<init>(Server.java:75) at org.glassfish.api.embedded.Server$Builder.build(Server.java:185) at org.glassfish.api.embedded.Server$Builder.build(Server.java:167) at orh.highmark.App.main(App.java:14) ... 6 more [INFO] ------------------------------------------------------------------------ [INFO] Total time: 1 second [INFO] Finished at: Sat May 08 02:55:03 IST 2010 [INFO] Final Memory: 3M/6M [INFO] ------------------------------------------------------------------------ I couldn't guess its problem with my program or with the glassfish api. Can somebody please help me understand what is happening here and how to rectify it? thanks for any clue ..

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  • XStream parse attributes and values at the same time

    - by gurbieta
    Hi, I have the following XML <search ver="3.0"> <loc id="ARBA0009" type="1">Buenos Aires, Argentina</loc> <loc id="BRXX1283" type="1">Buenos Aires, Brazil</loc> <loc id="ARDF0127" type="1">Aeroparque Buenos Aires, Argentina</loc> <loc id="MXJO0669" type="1">Concepcion De Buenos Aires, Mexico</loc> <loc id="MXPA1785" type="1">San Nicolas De Buenos Aires, Mexico</loc> <loc id="ARBA0005" type="1">Balcarce, Argentina</loc> <loc id="ARBA0008" type="1">Bragado, Argentina</loc> <loc id="ARBA0010" type="1">Campana, Argentina</loc> <loc id="ARBA0016" type="1">Chascomus, Argentina</loc> <loc id="ARBA0019" type="1">Chivilcoy, Argentina</loc> </search> And a City class public class City { private String id; private Integer type; private String name; // getters & setters... } I tried the following aliases to parse the XML xStream.alias("search", List.class); xStream.alias("loc", City.class); xStream.useAttributeFor("id", String.class); xStream.useAttributeFor("type", Integer.class); But I can't figure out how to set the value of the "loc" tag, if I try to transform the City object in XML I get <search> <loc id="ARBA0001" type="1"> <name>Buenos Aires</name> </loc> </search> When I really need to get this <search> <loc id="ARBA0001" type="1">Buenos Aires</loc> </search> Then, if I try to parse the XML to a City object I get the field "name" with a null value. Anybody knows how to set te correct aliases to do this? Thanks in advance.

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  • Using C# and Repository Factory and the error: The requested database is not defined in configurati

    - by odiseh
    hi I am using Repository factory for visual studio 2008 for a personal project. It generated a class called ProductRepository which inherits from Repository. The ProductRepository has a constructor which gets a database name as string and passes it to its base (I mean Repository ). So when I try to debug my project step by step, I pass my database name to ProductRepository but it raises the following error: The requested database is not defined in configuration. What's wrong?

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  • recordset advance query

    - by tom
    I'd like to have a query for the first and last name on an enrollment list so that only one result show. However, if only the last name is chosen in the query multiple answers will show.

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  • Android Marketplace Error: "The server could not process your apk. Try again."

    - by jdandrea
    I have an updated apk - tested successfully on various devices and simulator instances - with the following manifest: <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.myCompany.appName" android:versionCode="2" android:versionName="1.0.1"> <uses-sdk android:minSdkVersion="3" android:targetSdkVersion="5" /> <uses-permission android:name="android.permission.INTERNET" /> <supports-screens android:largeScreens="true" android:normalScreens="true" android:smallScreens="true" /> <application android:icon="@drawable/icon" android:label="@string/icon_name" android:debuggable="false"> <activity android:name=".myActivity" android:configChanges="keyboardHidden|orientation"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> </manifest> When I post to Android Marketplace as an upgrade to my existing 1.0 app, I get the aforementioned ambiguous message: "The server could not process your apk. Try again." I've searched elsewhere for this message in hopes of finding out what might be happening, to no avail. (A popular suggestion is to move the uses-sdk element to the top of the manifest, but as you can see it's already at the top.) Clues welcome/appreciated. Update: I just tried to upload the same file again. Now I get a new message: The new apk's versionCode (2) in AndroidManifest.xml must be higher than the old apk's versionCode (2). The server could not process your apk. Try again. Soooo Marketplace did get my upgraded apk after all? (The very first accepted apk's versionCode was 1, so this update was of course bumped to 2.) Confused … Bumping it up to 3 and trying again. Surprise surprise, I get the original "could not process" error all over again. Going in circles. Hmm ... :( Nuther Update: If I exit and re-enter the Marketplace page, now it shows that the app has been uploaded! Except there's no app icon. Curiouser and curiouser ... and this is all happening with a cache-cleared (standards-friendly) browser to boot. So - do I trust the upload? Or start over ... with versionCode="4"? All I want is to get a solid "Upload successful, here's the icon, ready to publish" type of response.

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  • Programmatically specifying Django model attributes

    - by mojbro
    Hi! I would like to add attributes to a Django models programmatically, at run time. For instance, lets say I have a Car model class and want to add one price attribute (database column) per currency, given a list of currencies. What is the best way to do this? I had an approach that I thought would work, but it didn't exactly. This is how I tried doing it, using the car example above: from django.db import models class Car(models.Model): name = models.CharField(max_length=50) currencies = ['EUR', 'USD'] for currency in currencies: Car.add_to_class('price_%s' % currency.lower(), models.IntegerField()) This does seem to work pretty well at first sight: $ ./manage.py syncdb Creating table shop_car $ ./manage.py dbshell shop=# \d shop_car Table "public.shop_car" Column | Type | Modifiers -----------+-----------------------+------------------------------------------------------- id | integer | not null default nextval('shop_car_id_seq'::regclass) name | character varying(50) | not null price_eur | integer | not null price_usd | integer | not null Indexes: "shop_car_pkey" PRIMARY KEY, btree (id) But when I try to create a new Car, it doesn't really work anymore: >>> from shop.models import Car >>> mycar = Car(name='VW Jetta', price_eur=100, price_usd=130) >>> mycar <Car: Car object> >>> mycar.save() Traceback (most recent call last): File "<console>", line 1, in <module> File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/django/db/models/base.py", line 410, in save self.save_base(force_insert=force_insert, force_update=force_update) File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/django/db/models/base.py", line 495, in save_base result = manager._insert(values, return_id=update_pk) File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/django/db/models/manager.py", line 177, in _insert return insert_query(self.model, values, **kwargs) File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/django/db/models/query.py", line 1087, in insert_query return query.execute_sql(return_id) File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/django/db/models/sql/subqueries.py", line 320, in execute_sql cursor = super(InsertQuery, self).execute_sql(None) File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/django/db/models/sql/query.py", line 2369, in execute_sql cursor.execute(sql, params) File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/django/db/backends/util.py", line 19, in execute return self.cursor.execute(sql, params) ProgrammingError: column "price_eur" specified more than once LINE 1: ...NTO "shop_car" ("name", "price_eur", "price_usd", "price_eur... ^

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  • Read a variable in bash with a default value

    - by rmarimon
    I need to read a value from the terminal in a bash script. I would like to be able to provide a default value that the user can change. # Please enter your name: Ricardo^ In this script the prompt is "Please enter your name: " the default value is "Ricardo" and the cursor would be after the default value. Is there a way to do this in a bash script?

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  • Implementing an async "read all currently available data from stream" operation

    - by Jon
    I recently provided an answer to this question: C# - Realtime console output redirection. As often happens, explaining stuff (here "stuff" was how I tackled a similar problem) leads you to greater understanding and/or, as is the case here, "oops" moments. I realized that my solution, as implemented, has a bug. The bug has little practical importance, but it has an extremely large importance to me as a developer: I can't rest easy knowing that my code has the potential to blow up. Squashing the bug is the purpose of this question. I apologize for the long intro, so let's get dirty. I wanted to build a class that allows me to receive input from a console's standard output Stream. Console output streams are of type FileStream; the implementation can cast to that, if needed. There is also an associated StreamReader already present to leverage. There is only one thing I need to implement in this class to achieve my desired functionality: an async "read all the data available this moment" operation. Reading to the end of the stream is not viable because the stream will not end unless the process closes the console output handle, and it will not do that because it is interactive and expecting input before continuing. I will be using that hypothetical async operation to implement event-based notification, which will be more convenient for my callers. The public interface of the class is this: public class ConsoleAutomator { public event EventHandler<ConsoleOutputReadEventArgs> StandardOutputRead; public void StartSendingEvents(); public void StopSendingEvents(); } StartSendingEvents and StopSendingEvents do what they advertise; for the purposes of this discussion, we can assume that events are always being sent without loss of generality. The class uses these two fields internally: protected readonly StringBuilder inputAccumulator = new StringBuilder(); protected readonly byte[] buffer = new byte[256]; The functionality of the class is implemented in the methods below. To get the ball rolling: public void StartSendingEvents(); { this.stopAutomation = false; this.BeginReadAsync(); } To read data out of the Stream without blocking, and also without requiring a carriage return char, BeginRead is called: protected void BeginReadAsync() { if (!this.stopAutomation) { this.StandardOutput.BaseStream.BeginRead( this.buffer, 0, this.buffer.Length, this.ReadHappened, null); } } The challenging part: BeginRead requires using a buffer. This means that when reading from the stream, it is possible that the bytes available to read ("incoming chunk") are larger than the buffer. Remember that the goal here is to read all of the chunk and call event subscribers exactly once for each chunk. To this end, if the buffer is full after EndRead, we don't send its contents to subscribers immediately but instead append them to a StringBuilder. The contents of the StringBuilder are only sent back whenever there is no more to read from the stream. private void ReadHappened(IAsyncResult asyncResult) { var bytesRead = this.StandardOutput.BaseStream.EndRead(asyncResult); if (bytesRead == 0) { this.OnAutomationStopped(); return; } var input = this.StandardOutput.CurrentEncoding.GetString( this.buffer, 0, bytesRead); this.inputAccumulator.Append(input); if (bytesRead < this.buffer.Length) { this.OnInputRead(); // only send back if we 're sure we got it all } this.BeginReadAsync(); // continue "looping" with BeginRead } After any read which is not enough to fill the buffer (in which case we know that there was no more data to be read during the last read operation), all accumulated data is sent to the subscribers: private void OnInputRead() { var handler = this.StandardOutputRead; if (handler == null) { return; } handler(this, new ConsoleOutputReadEventArgs(this.inputAccumulator.ToString())); this.inputAccumulator.Clear(); } (I know that as long as there are no subscribers the data gets accumulated forever. This is a deliberate decision). The good This scheme works almost perfectly: Async functionality without spawning any threads Very convenient to the calling code (just subscribe to an event) Never more than one event for each time data is available to be read Is almost agnostic to the buffer size The bad That last almost is a very big one. Consider what happens when there is an incoming chunk with length exactly equal to the size of the buffer. The chunk will be read and buffered, but the event will not be triggered. This will be followed up by a BeginRead that expects to find more data belonging to the current chunk in order to send it back all in one piece, but... there will be no more data in the stream. In fact, as long as data is put into the stream in chunks with length exactly equal to the buffer size, the data will be buffered and the event will never be triggered. This scenario may be highly unlikely to occur in practice, especially since we can pick any number for the buffer size, but the problem is there. Solution? Unfortunately, after checking the available methods on FileStream and StreamReader, I can't find anything which lets me peek into the stream while also allowing async methods to be used on it. One "solution" would be to have a thread wait on a ManualResetEvent after the "buffer filled" condition is detected. If the event is not signaled (by the async callback) in a small amount of time, then more data from the stream will not be forthcoming and the data accumulated so far should be sent to subscribers. However, this introduces the need for another thread, requires thread synchronization, and is plain inelegant. Specifying a timeout for BeginRead would also suffice (call back into my code every now and then so I can check if there's data to be sent back; most of the time there will not be anything to do, so I expect the performance hit to be negligible). But it looks like timeouts are not supported in FileStream. Since I imagine that async calls with timeouts are an option in bare Win32, another approach might be to PInvoke the hell out of the problem. But this is also undesirable as it will introduce complexity and simply be a pain to code. Is there an elegant way to get around the problem? Thanks for being patient enough to read all of this. Update: I definitely did not communicate the scenario well in my initial writeup. I have since revised the writeup quite a bit, but to be extra sure: The question is about how to implement an async "read all the data available this moment" operation. My apologies to the people who took the time to read and answer without me making my intent clear enough.

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  • ANTLRv3 How to set a custom Lexer and Parser Class names

    - by Filip
    Is there a way to specify custom class name (meaning independent of the grammar name) for the ANTLRv3 generated Parser and Lexer classes? So in the case of grammar MDD; //other stufff Automtaically it would crate MDDParser and MDDLexer, but i would like to have them for example as MDDBaseParser and MDDLexer.

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  • jquery ui dialog modal in asp.net

    - by Abu Hamzah
    i have a form with a button called "add person" so when the user clicks on it i want to open a jquery ui dialgo modal form with and once the use enter the detail (first name, last name etc...) and click submit the form than i want to update the data enter back to gridview.

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  • Filtering a dropdown in Angular IE11 issue

    - by Brian S.
    I have a requirement for a select html element that can be duplicated multiple times on a page. The options for these select elements all come from a master list. All of the select elements can only show all of the items in the master list that have not been selected in any of the other select elements unless they just were duplicated. So I wrote a custom filter to do this in Angular and it seems to work just fine provided you are not using IE11. In IE when you select a new item from a duplicated select element, it seems to select the option after the one you selected even though the model still has the correct one set. I realize this sounds convoluted, so I created a jFiddle example. Using IE 11 try these steps: Select Bender Click the duplicate link Select Fry Notice that the one that is selected is Leela but the model still has Fry (id:2) as the one selected Now if you do the same thing in Chrome everything works as expected. Can anyone tell me how I might get around this or what I might be doing wrong? Here is the relevant Angular code: myapp.controller('Ctrl', function ($scope) { $scope.selectedIds = [{}]; $scope.allIds = [{ name: 'Bender', value: 1}, {name: 'Fry', value: 2}, {name: 'Leela', value: 3 }]; $scope.dupDropDown = function(currentDD) { var newDD = angular.copy(currentDD); $scope.selectedIds.push(newDD); } }); angular.module('appFilters',[]).filter('ddlFilter', function () { return function (allIds, currentItem, selectedIds) { //console.log(currentItem); var listToReturn = allIds.filter(function (anIdFromMasterList) { if (currentItem.id == anIdFromMasterList.value) return true; var areThereAny = selectedIds.some(function (aSelectedId) { return aSelectedId.id == anIdFromMasterList.value; }); return !areThereAny; }); return listToReturn; } }); And here is the relevant HTML <div ng-repeat="aSelection in selectedIds "> <a href="#" ng-click="dupDropDown(aSelection)">Duplicate</a> <select ng-model="aSelection.id" ng-options="a.value as a.name for a in allIds | ddlFilter:aSelection:selectedIds"> <option value="">--Select--</option> </select> </div>

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  • editable dropdown in jquery.

    - by pradeep
    i have a requirement where in the name of the patient will be searched by the doctor ..there may be multiple patients with same name also..so when he starts searching he must get a drop down of all the patients with matching names he has typed.and he must be able to select from it and he must be still able to type new new search and drop down must change ...how do i do this....i am talking of inline dropdown.

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  • Problem with delete operation in many to many relation

    - by Alexey Zakharov
    Hi, I've got to classes Product and Store which have many to many relation I want deleting of store not to cause deleting of related product And deleting of product not to cause deleting of related store. Currently deleting of entity cause exception due to Foreign Key constraint. Here is this classes and their mapping in fluent hibernate: public class Product { public Product() { this.StoresStockedIn = new List<Store>(); } public virtual string Name { get; set; } public virtual double Price { get; set; } public virtual long ProductID { get; set; } public virtual IList<Store> StoresStockedIn { get; set; } } public class Store { public Store() { this.Products = new List<Product>(); this.Staff = new List<Employee>(); } public virtual string Name { get; set; } public virtual IList<Product> Products { get; set; } public virtual IList<Employee> Staff { get; set; } public virtual long StoreID { get; set; } } public class ProductMap : ClassMap<Product> { public ProductMap() { this.Id(x => x.ProductID); this.Map(x => x.Name); this.Map(x => x.Price); this.HasManyToMany(x => x.StoresStockedIn) .Cascade.None() .Table("StoreProduct"); } public class StoreMap : ClassMap<Store> { public StoreMap() { this.Id(x => x.StoreID); this.Map(x => x.Name); this.HasManyToMany(x => x.Products) .Cascade.None() .Inverse() .Table("StoreProduct"); this.HasMany(x => x.Staff) .Cascade.All() .Inverse(); } } Thanks, Alexey Zakharov

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  • Codeigniter Routes regex

    - by esryl
    want to route all underscored urls to the dashed equivalent. what would be the codeigniter route regex. url /controller-name/method-name-which-is-long/ would speak to /controller_name/method_name_which_is_long/ see: http://codeigniter.com/forums/viewreply/696690/ which gave me the idea to ask :)

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  • C# .net How we valiadate a xml with Multiple xml-schemas

    - by allen8374
    <SOAP-ENV:Envelope xmlns:SOAP-ENV="http://www.w3.org/2003/05/soap-envelope" xmlns:SOAP-ENC="http://www.w3.org/2003/05/soap-encoding" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:m0="http://www.MangoDSP.com/schema" xmlns:m1="http://www.onvif.org/ver10/schema"> <SOAP-ENV:Body> <m:CreateView xmlns:m="http://www.MangoDSP.com/mav/wsdl"> <m:View token=""> <m0:Name>View1</m0:Name> <m0:ProfileToken>AnalyticProfile1</m0:ProfileToken> <m0:IgnoreZone> <m0:Polygon> <m1:Point y="0.14159" x="0.12159"/> <m1:Point y="0.24159" x="0.34159"/> <m1:Point y="0.14359" x="0.94159"/> </m0:Polygon> </m0:IgnoreZone> <m0:SceneType>Outdoor</m0:SceneType> <m0:CustomParameters> <m0:CustomParameter> <m0:Name>ViewParam1</m0:Name> <m0:CustomParameterInt>0</m0:CustomParameterInt> </m0:CustomParameter> </m0:CustomParameters> <m0:SnapshotURI><!--This element is ignored for the create view request --> <m1:Uri>http://www.blabla.com</m1:Uri> <m1:InvalidAfterConnect>true</m1:InvalidAfterConnect> <m1:InvalidAfterReboot>true</m1:InvalidAfterReboot> <m1:Timeout>P1Y2M3DT10H30M</m1:Timeout> </m0:SnapshotURI> </m:View> </m:CreateView> </SOAP-ENV:Body> </SOAP-ENV:Envelope> xmlns:m="http://www.MangoDSP.com/mav/wsdl" as localfile:"ma.wsdl" xmlns:m0="http://www.MangoDSP.com/schema" as localfile:"MaTypes.xsd" how can i validate it.

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  • Directly adding username to URL PHP

    - by Stanley Ngumo
    Hi, I would to know how one is able to append a username directly to a site url without having to put it within a query? Eg www.myspace.com/micheal instead of www.myspace.com?name=micheal Without having to create a new folder for the user so that when the url is typed including the name, the surfer is taken directly to the user's profile. Thanx

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