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  • How to change default image of derived ToolStripButton?

    - by Special Touch
    It seems like a simple task. Create a C# class that derives from ToolStripButton. The derived ToolStripButton should behave exactly the same as the parent class in the designer and the application, except that the default image should be different. Surprisingly just changing the constructor is not sufficient: public CustomToolStripButton() { base.Image = (Image) new Bitmap(typeof(CustomToolStripButton), "CustomImage.bmp"); } When the ToolStripButton is displayed in the designer, the original default image is shown. There must be a simple solution. What could it be?

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  • C# - Coding a nested stateflow diagram

    - by weberc2
    I have the following state diagram. I know how to make a simple state machine that transitions between non-nested states; however, I don't know how to transition between nested states. Could someone explain how to do this at an appropriately high level (i.e., you don't need to write the code for me--unless you're feeling particularly generous :P). State Diagram [EDIT: The bottom "A", "C", and "E" should be "B", "D", and "F" respectively; sorry!] What I know how to do public class MyState : State // State enumeration { public static MyState A = new MyState("State A"); public static MyState B = new MyState("State B"); public static MyState C = new MyState("State C"); public static MyState D = new MyState("State D"); public static MyState E = new MyState("State E"); public static MyState F = new MyState("State F"); public static MyState NEUT = new MyState("Neutral"); public static MyState P = new MyState("P"); protected MyState(string name) : base(name) { } } public class MyEvent : Event // Event enumeration { public static MyEvent X_POS = new MyEvent("X+"); public static MyEvent X_NEG = new MyEvent("X-"); public static MyEvent Y_POS = new MyEvent("Y+"); public static MyEvent Y_NEG = new MyEvent("Y-"); protected MyEvent(string name) : base(name) { } } public class MyStateMachine : StateMachine<MyState, MyEvent> // State Machine implementation { public MyStateMachine() : base(MyState.P) // MyState.P = initial state { // Set up the transition table // P this.addTransition(MYState.P, MyState.NEUT, MyEvent.Y_NEG); // NEUTRAL this.addTransition(MyState.NEUT, MyState.P, MyEvent.Y_POS); this.addTransition(MyState.NEUT, MyState.A, MyEvent.Y_NEG); this.addTransition(MyState.NEUT, MyState.B, MyEvent.Y_POS); this.addTransition(MyState.NEUT, MyState.C, MyEvent.Y_NEG); this.addTransition(MyState.NEUT, MyState.D, MyEvent.Y_POS); this.addTransition(MyState.NEUT, MyState.E, MyEvent.Y_NEG); this.addTransition(MyState.NEUT, MyState.F, MyEvent.Y_POS); // A this.addTransition(MyState.A, MyState.NEUT, MyEvent.Y_POS); // B this.addTransition(MyState.B, MyState.NEUT, MyEvent.Y_NEG); // C this.addTransition(MyState.C, MyState.NEUT, MyEvent.Y_POS); // D this.addTransition(MyState.D, MyState.NEUT, MyEvent.Y_NEG); // E this.addTransition(MyState.E, MyState.NEUT, MyEvent.Y_POS); // F this.addTransition(MyState.F, MyState.NEUT, MyEvent.Y_NEG); } public void move(MyEvent eevent) { try { this.moveNext(eevent); } catch (Exception e) { } } }

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  • Silverlight chart with behavior/bitmap image tooltip passthrough

    - by isitdanny
    I have a chart showing bound data as tooltips and it works well. I have added a magnifier(set of behaviors class) that captures a bitmap image at two times scale that shows in a circular area over the hover spot. The tooltip does not display. I have tried a custom tooltip service but cannot bind it to the behaviors. I added the tooltip to the behavior class and got a tooltip and data but could not move it with the magnifier. It just sits in the middle and laughs. I added a usercontrol "tooltip"-same issues, could not hook it to the magnifier behavior. I know I can probably build a popup, but really wanted to just pass through the bitmap layer with the tootip. Any ideas would be greatly appreciated. Danny

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  • Grails multiple databases

    - by srinath
    Hi, how can we write queries on 2 databases . I installed datasources plugin and domain classes are : class Organization { long id long company_id String name static mapping = { version false table 'organization_' id column : 'organizationId' company_id column : 'companyId' name column : 'name' } } class Assoc { Integer id Integer association_id Integer organization_id static mapping = { version false table 'assoc' id column : 'ASSOC_ID' association_id column : 'ASSOCIATION_ID' organization_id column : 'ORGANIZATION_ID' } } this is working : def org = Organization.list() def assoc = Assoc.list() and this is not working : def query = Organization.executeQuery("SELECT o.name as name, o.id FROM Organization o WHERE o.id IN (SELECT a.organization_id FROM Assoc a )") error : org.hibernate.hql.ast.QuerySyntaxException: Assoc is not mapped [SELECT o.name as name, o.id FROM org.com.domain.Organization o WHERE o.id IN (SELECT a.organization_id FROM AssocOrg a )] How can we connect with 2 databases using single query ? thanks in advance .

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  • Can a ViewController (AdMob AdViewController) control a view that is a subview of the controlled vie

    - by RexOnRoids
    I am trying to use the IB AdMob ad in my app. I followed the instructions provided but I am getting an EXC_BAD_ACCESS from the AdMob class. I am trying to figure out what the problem is. Anyway, my question is Can a ViewController (AdMob AdViewController) control a view that is a subview of the controlled view of another UIViewController? Here is how I set it up: I start off with a UIViewController in IB. Step 1) I add a UIView sized 320 x 48 to the UIView controlled by the UIViewController. Step 2) I add an Object to the hierarchy (not under any other object). Step 3) I set the class of the Object to AdViewController (AdViewController.h of AdMob SDK) Step 4) I set connect the view outlet of the Object to the UIView of Step 1

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  • Using Linq methods causes missing references to DependencyObject in WindowsBase

    - by Jason Coyne
    I have some c# source that I want to compile using CodeDom within my application (for a plugin) Everything works fine, except if I use a Linq extension function on some of my collections var dict = new Dictionary<KeyType, ValueType>(); .... dict.Any(KV=>KV.Key == "Some Key); When I try to compile source that has this code, it CodeDom complains that I am missing a reference to DependencyObject in WindowsBase. I do not understand why this is happening. Neither the Dictionary class, or the Any extension method reference that class, which apparently is part of Windows.Forms I would normally just ignore the quirk, make the CodeDom add a reference and move on, but Apparently WindowsBase is special and is not always distributed and I don't want to cause issues for users that may not have it installed correctly.

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  • How are Scala traits compiled into Java bytecode?

    - by Justin Ardini
    I have played around with Scala for a while now, and I know that traits can act as the Scala equivalent of both interfaces and abstract classes. Recently I've been wondering how exactly traits are compiled into Java bytecode. I found some short explanations that stated traits are compiled exactly like Java interfaces when possible, and interfaces with an additional class otherwise. I still don't understand, however, how Scala achieves class linearization, a feature not available in Java. Could anyone explain or provide a good source explains how traits compile to Java bytecode?

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  • How to do this Unidirectional NHibernate one-to-one mapping?

    - by JMSA
    This is a problem of unidirectional one-to-one mapping in NHibernate. Student.cs public class Student { public int ID { get; set; } public int Roll { get; set; } public int RegNo { get; set; } public string Name { get; set; } public StudentDetail StudentDetail { get; set; } } StudentDetail.cs public class StudentDetail { public int ID { get; set; } public string Father { get; set; } public string Mother { get; set; } } How can I map these classes (how do the hbm mapping files look like) to the following case of one-to-one relationship? Please have a look at the classes very carefully.

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  • Django: Prefill a ManytoManyField

    - by Emile Petrone
    I have a ManyToManyField on a settings page that isn't rendering. The data was filled when the user registered, and I am trying to prefill that data when the user tries to change it. Thanks in advance for the help! The HTML: {{form.types.label}} {% if add %} {{form.types}} {% else %} {% for type in form.types.all %} {{type.description}} {% endfor %} {% endif %} The View: @csrf_protect @login_required def edit_host(request, host_id, template_name="host/newhost.html"): host = get_object_or_404(Host, id=host_id) if request.user != host.user: return HttpResponseForbidden() form = HostForm(request.POST) if form.is_valid(): if request.method == 'POST': if form.cleaned_data.get('about') is not None: host.about = form.cleaned_data.get('about') if form.cleaned_data.get('types') is not None: host.types = form.cleaned_data.get('types') host.save() form.save_m2m() return HttpResponseRedirect('/users/%d/' % host.user.id) else: form = HostForm(initial={ "about":host.about, "types":host.types, }) data = { "host":host, "form":form } return render_to_response(template_name, data, context_instance=RequestContext(request)) Form: class HostForm(forms.ModelForm): class Meta: model = Host fields = ('types', 'about', ) types = forms.ModelMultipleChoiceField( widget=forms.CheckboxSelectMultiple, queryset=Type.objects.all(), required=True) about = forms.CharField( widget=forms.Textarea(), required=True) def __init__(self, *args, **kwargs): super(HostForm, self).__init__(*args, **kwargs) self.fields['about'].widget.attrs = { 'placeholder':'Hello!'}

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  • Setting unique key constraint for Db4oEmbedded EmbeddedConfiguration

    - by Viet
    Hi, I want to set unique key constraint for Db4oEmbedded EmbeddedConfiguration. Here goes my code: EmbeddedConfiguration myConf = Db4oEmbedded.newConfiguration(); myConf.common().objectClass(NotyUser.class).objectField("username").indexed(true); myConf.common().add(new com.db4o.constraints.UniqueFieldValueConstraint(NotyUser.class, "username")); The last line throws exception. I don't know why. I'm running Android SDK 1.5 and db4o 7.12 for Java. Please kindly advise. Thanks!

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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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  • How to configure Spring JavaMailSenderImpl for Gmail

    - by Andrew Carlson
    I am trying to find the correct properties to use to connect to the Gmail SMTP sever using the JavaMailSenderImpl class. Let me first say that I have tried the approach found here. This worked fine. But when I tried the configuration below that post with the exact same authentication information I received a javax.mail.AuthenticationFailedException. My currently configuration looks like this. <bean id="mailSender" class ="org.springframework.mail.javamail.JavaMailSenderImpl" > <property name="username" value="[email protected]" /> <property name="password" value="XXX" /> <property name="javaMailProperties"> <props> <prop key="mail.smtp.host">smtp.gmail.com</prop> <prop key="mail.smtp.port">587</prop> <prop key="mail.smtp.auth">true</prop> <prop key="mail.smtp.starttls.enable">true</prop> </props> </property> </bean> Why am I still getting this javax.mail.AuthenticationFailedException if I know that my credentials are correct. Update Here is my updated code based on the answers below. I am still receiving the same exception. <bean id="mailSender" class ="org.springframework.mail.javamail.JavaMailSenderImpl" > <property name="username" value="[email protected]" /> <property name="password" value="XXX" /> <property name="javaMailProperties"> <props> <prop key="mail.smtp.from">[email protected]</prop> <prop key="mail.smtp.user">[email protected]</prop> <prop key="mail.smtp.password">XXX</prop> <prop key="mail.smtp.host">smtp.gmail.com</prop> <prop key="mail.smtp.port">587</prop> <prop key="mail.smtp.auth">true</prop> <prop key="mail.smtp.starttls.enable">true</prop> </props> </property> </bean>

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  • Why we used double and triple pointer in objective-C or C language?

    - by Rajendra Bhole
    Hi, I confused when i want to take single pointer and when should i take double pointer? In following structure what exactly did? struct objc_class { Class isa; Class super_class; const char *name; long version; long info; long instance_size; struct objc_ivar_list *ivars; struct objc_method_list **methodLists; struct objc_cache *cache; struct objc_protocol_list *protocols; }; Why we use the "**methodLists" double pointer. Edited int sqlite3_get_table( sqlite3 *db, const char zSql, char **pazResult, int *pnRow, int *pnColumn, char *pzErrmsg ); In above scenario what will be meaning of triple pointer char **pazResult?

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  • Joda-Time: DateTime, DateMidnight and LocalDate usage

    - by fraido
    Joda-Time library includes different datetime classes DateTime - Immutable replacement for JDK Calendar DateMidnight - Immutable class representing a date where the time is forced to midnight LocalDateTime - Immutable class representing a local date and time (no time zone) I'm wondering how are you using these classes in your Layered Applications. I see advantages in having almost all the Interfaces using LocalDateTime (at the Service Layer at least) so that my Application doesn't have to manage Timezones and can safely assume Times always in UTC. My app could then use DateTime to manage Timezones at the very beginning of the Execution's Flow. I'm also wondering in which scenario can DateMidnight be useful.

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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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  • Should I match the curly brace usage of the previous author?

    - by Error 454
    When working on code from multiple authors, I often encounter the issue of curly-brace preference (same line vs new line). Is it good/bad practice or even a non-issue when it comes to matching the existing style vs using your own preference? Does the situation change if you are adding new code to a Class vs modifying existing code? Finally, if style should be matched, how far should the match propagate? i.e. the file, the class, subclasses etc. Example: if(this) { doThat(); } Vs. if(this){ doThat(); }

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  • Override the neutral language of a specific resource file within an assembly

    - by Sandor Drieënhuizen
    I have an assembly that contains several resource files. Most of them have the neutral language 'nl' (Dutch, specified on the assembly as the neutral language), so I don't specify the 'nl' in their filenames. However, I'm putting strings in the English language in some other resource files (they are internal error messages) and I will never provide Dutch translations of them. If I name those resource files something like 'Errors.en.resx', no designer class is generated (breaks the build) because there is no 'Errors.resx'. This is annoying because now I have to put 'en' strings into a 'nl'-implied resource file and I really don't want to translate those strings to 'nl' or provide empty strings just to satisfy the compiler. Is there a way to override the neutral language on a specific resource file or perhaps somehow have the 'Errors.en.resx' build a designer class?

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  • Simplest way to add HTML as a String to a new Nokogiri HTML document body?

    - by viatropos
    I have a bunch of content from the body of one HTML file. How do I put that into the body of a new blank-slate HTML document using Nokogiri? Something like this, but with Nokogiri: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>Default Title</title> </head> <body class='default-class'> <%= yield :body %> </body> </html>

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  • Exercise 26 of The Pragmatic Programmer

    - by _ande_turner_
    There is a code snippet presented in The Pragmatic Programmer on page 143 as: public class Colada { private Blender myBlender; private Vector myStuff; public Colada() { myBlender = new Blender(); myStuff = new Vector(); } private doSomething() { myBlender.addIngredients(myStuff.elements()); } } This obeys the Law of Demeter / Principle of Least Knowledge. Is it preferable to, and are there any caveats for, replacing it with the following, which utilises Dependency Injection? public class Colada throws IllegalArgumentException { private Blender myBlender; private Vector myStuff; public Colada(Blender blender, Vector stuff) { blender == null ? throw new IllegalArgumentException() : myBlender = blender; stuff == null ? throw new IllegalArgumentException() : myStuff = stuff; } public getInstance() { Blender blender = new Blender(); Vector stuff = new Vector(); return new Colada(blender, stuff); } private doSomething() { myBlender.addIngredients(myStuff.elements()); } }

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  • Why does Android Account & Sync reboot when trying to find my settings activity?

    - by mobibob
    I have an activity that I can declare as Launcher category and it launches just fine from the home screen. However, when I try to hook-up the same activity into my SyncAdapter's settings activity and open it from the Accounts & Sync page - MySyncAdapter - (touch account listing) it aborts with a system fatal error (reboots phone). Meanwhile, my SyncAdapter is working other respects. Here is the log at point of impact: 01-13 12:31:00.976 5024 5038 I ActivityManager: Starting activity: Intent { act=android.provider.Settings.ACTION_SYNC_SETTINGS flg=0x10000000 cmp=com.myapp.android.syncadapter.ui/SyncAdapterSettingsActivity.class (has extras) } 01-13 12:31:00.985 5024 5038 E AndroidRuntime: *** FATAL EXCEPTION IN SYSTEM PROCESS: android.server.ServerThread 01-13 12:31:00.985 5024 5038 E AndroidRuntime: android.content.ActivityNotFoundException: Unable to find explicit activity class {com.myapp.android.syncadapter.ui/SyncAdapterSettingsActivity.class}; have you declared this activity in your AndroidManifest.xml? 01-13 12:31:00.985 5024 5038 E AndroidRuntime: at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1404) 01-13 12:31:00.985 5024 5038 E AndroidRuntime: at android.app.Instrumentation.execStartActivity(Instrumentation.java:1378) 01-13 12:31:00.985 5024 5038 E AndroidRuntime: at android.app.ContextImpl.startActivity(ContextImpl.java:622) 01-13 12:31:00.985 5024 5038 E AndroidRuntime: at android.preference.Preference.performClick(Preference.java:828) 01-13 12:31:00.985 5024 5038 E AndroidRuntime: at android.preference.PreferenceScreen.onItemClick(PreferenceScreen.java:190) 01-13 12:31:00.985 5024 5038 E AndroidRuntime: at android.widget.AdapterView.performItemClick(AdapterView.java:284) 01-13 12:31:00.985 5024 5038 E AndroidRuntime: at android.widget.ListView.performItemClick(ListView.java:3382) 01-13 12:31:00.985 5024 5038 E AndroidRuntime: at android.widget.AbsListView$PerformClick.run(AbsListView.java:1696) 01-13 12:31:00.985 5024 5038 E AndroidRuntime: at android.os.Handler.handleCallback(Handler.java:587) 01-13 12:31:00.985 5024 5038 E AndroidRuntime: at android.os.Handler.dispatchMessage(Handler.java:92) 01-13 12:31:00.985 5024 5038 E AndroidRuntime: at android.os.Looper.loop(Looper.java:123) 01-13 12:31:00.985 5024 5038 E AndroidRuntime: at com.android.server.ServerThread.run(SystemServer.java:517) 01-13 12:31:00.985 5024 5038 I Process : Sending signal. PID: 5024 SIG: 9 01-13 12:31:01.005 5019 5019 I Zygote : Exit zygote because system server (5024) has terminated 01-13 12:31:01.015 1211 1211 E installd: eof Here is a snippet from my manifest file: <activity android:name="com.myapp.android.syncadapter.ui.SyncAdapterSettingsActivity" android:label="@string/title_settings" android:windowSoftInputMode="stateAlwaysHidden|adjustPan"> <intent-filter> <action android:name="android.intent.action.VIEW" /> <action android:name="android.intent.action.MAIN" /> <action android:name="android.provider.Settings.ACTION_SYNC_SETTINGS"/> <category android:name="android.intent.category.DEFAULT" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity>

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  • Visual Studio Code Metrics and the Maintainability index of switch case

    - by pee2002
    Hi there! As a person who loves to follow the best practices, If i run code metrics (right click on project name in solution explorer and select "Calculate Code Metrics" - Visual Studio 2010) on: public static string GetFormFactor(int number) { string formFactor = string.Empty; switch (number) { case 1: formFactor = "Other"; break; case 2: formFactor = "SIP"; break; case 3: formFactor = "DIP"; break; case 4: formFactor = "ZIP"; break; case 5: formFactor = "SOJ"; break; } return formFactor; } It Gives me a Maintainability index of 61 (of course this is insignificant if you have only this, but if you use an utility like class whos philosophy is doing stuff like that, your utility class will have the maintainability index much worst..) Whats the solution for this?

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  • Grails Date Property Editor

    - by Jan
    Hey folks, i'm using the jQuery UI datepicker instead of the <g:datePicker>, which is changing the selected date in a textbox. Now I want to save this neatly back into my database, and came across custom property editors. click me hard to see the topic on StackOverflow However, adding this custom PropertyEditor didn't change anything, dates are still displayed like '2010-01-01 00:00:00.0' and if I try to save a date it crashes with Cannot cast object '05.05.2010' with class 'java.lang.String' to class 'java.util.Date'. Is there any additional magic needed, like a special naming of the textbox or something like that? Thanks for your help, Jan

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  • How to replace tokens in the master page in asp.net mvc?

    - by AngryHacker
    I have a master page in my asp.net MVC project, which has code like this: <div id="menu"> <ul> <li><a href="#" class="current">home</a></li> <li><a href="#">add image</a></li> <li><a href="#">contact</a></li> </ul> </div> Depending on what page I am on, I'd like to move the class="current" attribute to a different <li>. What is the general pattern that this type of thing is done with on ASP.NET MVC?

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  • how to get the value of a kendoui dropdown list selected value in a listview

    - by user1568738
    am having Some kendoui listviews which consists of kendoui dropdown lists and i want to get those dropdown list selected values. To do this am trying, $("#cnty1").val(); and here is my dropdownlist,i.e., list of countries coming from Database table, <input select STYLE="width:90px;height:auto" id ="cnty1" data-bind="value:cnty1" name="cnty1" data-type="string" data-text-field="cnty" data-value-field="cntyid" data-source="sourcedata1" class="k-d" data-role="dropdownlist" /> <span data-for="cnty1" class="k-invalid-msg"></span> here cnty1 is the id of the dropdown list, but am not getting the value instead am getting "id" of the slected value but not the selected value. And also if the value is not selected am getting the first value id by using $("#cnty1").val(); So, please suggest me a solution so that, 1) I should get only the Selected value and 2) Value of the dropdown list Only if the user selects a value from the list, but don't get the value of the list without selecting.

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  • Why can I access private/protected methods using Object#send in Ruby?

    - by smotchkkiss
    The class class A private def foo puts :foo end public def bar puts :bar end private def zim puts :zim end protected def dib puts :dib end end instance of A a = A.new test a.foo rescue puts :fail a.bar rescue puts :fail a.zim rescue puts :fail a.dib rescue puts :fail a.gaz rescue puts :fail test output fail bar fail fail fail .send test [:foo, :bar, :zim, :dib, :gaz].each { |m| a.send(m) rescue puts :fail } .send output foo bar zim dib fail The question The section labeled "Test Output" is the expected result. So why can I access private/protected method by simply Object#send? Perhaps more important: What is the difference between public/private/protected in Ruby? When to use each? Can someone provide real world examples for private and protected usage?

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