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  • Select...Case VB.NET to C# Equivalent

    - by Alex Essilfie
    I just started using C# and I've got a couple of issues. I hook several controls to one event handler as in the following and I want to perform a slightly different action for each control: Private Sub Button_Click(sender as Object, e as EventArgs) _ Handles button1.Click, Button2.Click 'do a general activity Select CType(sender, Button).Name Case button1.Name 'do something Case button2.Name 'do something else Case Else 'do the defalut action End Select End Sub Is there any way of doing the above select statement in C# without having to use nested ifs?

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  • Display the text label for selected radio button in Jquery

    - by Thinker
    Hai, I have a group of radio buttons, i could able to pick the selected value using jQuery but not the text label for selected values. for ex: <input type="radio" value="1" name="priority">High</input> <input type="radio" value="2" name="priority">Medium</input> <input type="radio" value="3" name="priority">Low</input> JQUERY CODE TO PICK THE SELECTED VALUE jQuery('input:radio[name=priority]').change(function() { var priority_type=jQuery(this).attr("value"); alert(priority_type); } OUTPUT would be any one of the following (1,2,3) Now my requirement is, i would like to display the label of the selected values for eg (high or low or medium) depends on the selection of the radio button. Hope this helps. let me know if you have any question. Kindly help me in this task

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  • JQuery autocomplete problem

    - by heffaklump
    Im using JQuerys Autocomplete plugin, but it doesn't autocomplete upon entering anything. Any ideas why it doesnt work? The basic example works, but not mine. var ppl = {"ppl":[{"name":"peterpeter", "work":"student"}, {"name":"piotr","work":"student"}]}; var options = { matchContains: true, // So we can search inside string too minChars: 2, // this sets autocomplete to begin from X characters dataType: 'json', parse: function(data) { var parsed = []; data = data.ppl; for (var i = 0; i < data.length; i++) { parsed[parsed.length] = { data: data[i], // the entire JSON entry value: data[i].name, // the default display value result: data[i].name // to populate the input element }; } return parsed; }, // To format the data returned by the autocompleter for display formatItem: function(item) { return item.name; } }; $('#inputplace').autocomplete(ppl, options); Ok. Updated: <input type="text" id="inputplace" /> So, when entering for example "peter" in the input field. No autocomplete suggestions appear. It should give "peterpeter" but nothing happens. And one more thing. Using this example works perfectly. var data = "Core Selectors Attributes Traversing Manipulation CSS Events Effects Ajax Utilities".split(" "); $("#inputplace").autocomplete(data);

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  • How do I get a JComponent to resize after calling `setVisible(true)`?

    - by iWerner
    Our application displays a 2D view of our data (mainly maps) and then allows the user to change to a 3D view. The 2D and 3D views are generated by custom C++ code that is SWIG'ed into our Swing GUI and wrapped within a JComponent. These JComponents are then displayed within another parent JComponent. Our problem is that when we change from the 2D to the 3D view and then back to the 2D view, when we resize the window the 2D view does not get resized. The resize events don't get sent to the 2D view. Our application runs under Linux (Fedora 11). We're running Java version 1.6.0_12. Here is some sample code in which I've replaced the 2D view and 3D view with two 2 JButtons, that produces the same behaviour. Once you go to 3D and then back to 2D, resizing the window does not cause the 2D view to be resized. /* TestFrame.java * Compile with: $ javac TestFrame.java * Run with: $ java TestFrame */ import java.awt.BorderLayout; import java.awt.Container; import java.awt.event.ComponentEvent; import java.awt.event.ComponentListener; import javax.swing.JButton; public class TestFrame extends javax.swing.JFrame { private boolean mode2D = true; private JButton view2D = null; private JButton view3D = null; private Container parent = null; public TestFrame() { initComponents(); containerPanel.setLayout(new BorderLayout()); view2D = new JButton("2D View"); view2D.addComponentListener(new MyListener("2D VIEW")); containerPanel.add(view2D); } private void changerButtonActionPerformed(java.awt.event.ActionEvent evt) { if (parent == null) { parent = view2D.getParent(); } if (mode2D) { System.out.println("Going from 2D to 3D"); view2D.setVisible(false); if (view3D != null) { view3D.setVisible(true); } else { view3D = new JButton("3D View"); view3D.addComponentListener(new MyListener("3D VIEW")); parent.add(view3D); } ((JButton) evt.getSource()).setText("Change to 2D"); mode2D = false; } else { System.out.println("Going from 3D to 2D"); view3D.setVisible(false); view2D.setVisible(true); ((JButton) evt.getSource()).setText("Change to 3D"); mode2D = true; } } public static void main(String args[]) { java.awt.EventQueue.invokeLater(new Runnable() { public void run() { new TestFrame().setVisible(true); } }); } private javax.swing.JPanel containerPanel; private javax.swing.JButton changerButton; private class MyListener implements ComponentListener { private String name; public MyListener(String name) { this.name = name; } @Override public void componentHidden(ComponentEvent event) { System.out.println("@@@ [" + name + "] component Hidden"); } @Override public void componentResized(ComponentEvent event) { System.out.println("@@@ [" + name + "] component Resized"); } @Override public void componentShown(ComponentEvent event) { System.out.println("@@@ [" + name + "] component Shown"); } @Override public void componentMoved(ComponentEvent event) { System.out.println("@@@ [" + name + "] component Moved"); } }; @SuppressWarnings("unchecked") private void initComponents() { containerPanel = new javax.swing.JPanel(); changerButton = new javax.swing.JButton(); setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); containerPanel.setBorder(new javax.swing.border.MatteBorder(null)); javax.swing.GroupLayout containerPanelLayout = new javax.swing.GroupLayout(containerPanel); containerPanel.setLayout(containerPanelLayout); containerPanelLayout.setHorizontalGroup( containerPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGap(0, 374, Short.MAX_VALUE) ); containerPanelLayout.setVerticalGroup( containerPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGap(0, 239, Short.MAX_VALUE) ); changerButton.setText("Change to 3D"); changerButton.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { changerButtonActionPerformed(evt); } }); javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane()); getContentPane().setLayout(layout); layout.setHorizontalGroup( layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup() .addContainerGap() .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addComponent(containerPanel, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE) .addComponent(changerButton)) .addContainerGap()) ); layout.setVerticalGroup( layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup() .addContainerGap() .addComponent(containerPanel, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) .addComponent(changerButton) .addContainerGap()) ); pack(); } } (My apologies for the Netbeans generated GUI code) I should mention that when we call parent.remove(view2D) and parent.add(view3D) to change the views the X Windows ID of our 3D view changes and we're unable to get our 3D view back. Therefore parent.remove(view2D) and parent.add(view3D) is not really a solution and we have to call setVisible(false) and setVisible(true) on the JComponents that contain our 2D and 3D views in order to hide and show them. Any help will be greatly appreciated.

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  • Application error when drawing to SurfaceView

    - by DKDiveDude
    I'm am doing a simple coding attempt trying to draw on a SurfaceView created on my main.xml layout. I can change background color and display an icon fine, but when I try to draw I get an error. I am a newbie so obvious I am missing something, please lent a helping hint, thanks! main.xml <?xml version="1.0" encoding="utf-8"?> <SurfaceView android:id="@+id/Paper" android:layout_height="fill_parent" android:layout_width="fill_parent"> </SurfaceView> and code here; package com.example.SurfaceViewTest; import android.app.Activity; import android.graphics.Bitmap; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.Paint; import android.os.Bundle; import android.view.SurfaceHolder; import android.view.SurfaceView; public class SurfaceViewTest extends Activity implements SurfaceHolder.Callback { private SurfaceView mSurfaceView; private SurfaceHolder mSurfaceHolder; private Paint paint; private Canvas canvas; Bitmap mDrawing; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); mSurfaceView = (SurfaceView) this.findViewById(R.id.Paper); mSurfaceHolder = mSurfaceView.getHolder(); mSurfaceHolder.addCallback(this); mSurfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); } @Override public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) { // TODO Auto-generated method stub } @Override public void surfaceCreated(SurfaceHolder holder) { mSurfaceView.setBackgroundColor(Color.rgb(0, 255, 0)); //mSurfaceView.setBackgroundResource(R.drawable.icon); canvas = holder.lockCanvas(null); mDrawing = Bitmap.createBitmap(100, 100, Bitmap.Config.RGB_565); canvas.setBitmap(mDrawing); paint = new Paint(); paint.setColor(Color.rgb(255, 255,255)); canvas.drawLine(1,1,200,300, paint); holder.unlockCanvasAndPost(canvas); } @Override public void surfaceDestroyed(SurfaceHolder holder) { // TODO Auto-generated method stub } }

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  • Can we connect shaerpoint to sql server6.5?

    - by nalini
    Not able to import application definition file!! Error: The metadata object with Name 'XYZ' and of Type 'LobSystemInstance' has a Property with Name 'DatabaseAccessProvider' that has either an invalid value or Type. Error was encountered at or just before Line: '10' and Position: '10'. line 10 in ADF: <"Property Name="DatabaseAccessProvider" Type="System.String"SqlOledb<"/Property Please give me ideas on how to display data from sql6.5 to sharepoint?

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  • How to prevent google chrome from caching my inputs, esp hidden ones when user click back?

    - by melaos
    hi there, i have an asp.net mvc app which have quite a few hidden inputs to keep values around and formatting their names so that i can use the Model binding later when i submit the form. i stumble into a weird bug with chrome which i don't have with IE or Firefox when the user submits the form and click on the back button, i find that chrome will keep my hidden input values as well. this whole chunk is generated via javascript hence i believe chrome is caching this. function addProductRow(productId, productName) { if (productName != "") { //use guid to ensure that the row never repeats var guid = $.Guid.New(); var temp = parseFloat($(".tboProductCount").val()); //need the span to workaround for chrome var szHTML = "<tr valign=\"top\" id=\"productRow\"><td class=\"productIdCol\"><input type=\"hidden\" id=productRegsID" + temp + "\" name=\"productRegs[" + temp + "].productId\" value=\"" + productId + "\"/>" + "<span id=\"spanProdID" + temp + "\" name=\"spanProdID" + temp + "\" >" + productId + "</span>" + "</td>" //+ "<td><input type=\"text\" id=\"productRegName\" name=\"productRegs[" + temp + "].productName\" value=\"" + productName + "\" class=\"productRegName\" size=\"50\" readonly=\"readonly\"/></td>" + "<td><span id=\"productRegName\" name=\"productRegs[" + temp + "].productName\" class=\"productRegName\">"+ productName + "<\span></td>" + "<td id=\"" + guid + "\" class=\"productrowguid\" \>" + "<input type=\"text\" size=\"20\" id=\"productSerialNo" + temp + "\" name=\"productRegs[" + temp + "].serialNo\" value=\"" + "\" class=\"productSerialNo\" maxlength=\"18\" />" + "<a class=\"fancybox\" id=\"btnImgSerialNo" + temp + "\" href=\"#divSerialNo" + temp + "\"><img class=\"btnImgSerialNo\" src=\"Images/landing_14.gif\" /></a>" + "<span id=\"snFlag" + temp + "\" class=\"redWarning\"></span></td>" + "<td><input type=\"text\" id=\"productRegDate" + temp + "\" name=\"productRegs[" + temp + "].PurchaseDate\" readonly=\"readonly\" />" + "<span id=\"snRegDate" + temp + "\" class=\"redWarning\"></span></td>" + "<td align=\"center\"><img style=\"cursor:pointer\" id=\"btnImgDelete\" src=\"Images/btn_remove.gif\" onclick=\"javascript:removeProductRow('" + guid + "')\" /><div style=\"display:none;\"><div id=\"divSerialNo" + temp + "\" style=\"font-family:verdana;font-size:11px;width:600px\">" + serialnumbergeneral + "<br /><br />" + getSNImageByCategory(productId) + "</div></div></td>" + "</tr>"; $(".ProductRegistrationTable").append(szHTML); $("a.fancybox").fancybox(); //initialization $("#productRegDate" + temp).datepicker({ minDate: new Date(1996, 1 - 1, 1), maxDate: 0 }); //sanity check //s7test alert('1 '+$("#spanProdID" + temp)); alert('2 '+$("#productRegsID" + temp)); } //end function addNewProductRow i need the id to be refreshed when the user select a new product, but putting another span tag beside it shows that the span will have the new id will the hidden input will still have the previous id. is there an elegant way to workaround this issue? thanks

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  • Powershell - Select the values of one property on all objects of an array

    - by Sylvain Reverdy
    Sorry, I'm still a noob on Powershell and I could not find an answer on Internet... Let's say we have an array of objects $objects. Let's say these objects have a "Name" property. This is what I want to do $results = @() $objects | %{ $results += $_.Name } this works but can it be done on a better way? If I do something like : $results = objects | Select Name $results is an array of objects having a Name property. I want $results to contain an array of Names So, is there a better way ? Thx a lot

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  • Slider - Moving of slider clears the screen.....

    - by Mahesh
    Hi, I am currently working on Silver light 3.0. Currently facing one simple issue but not able to find the solution about it. I have one column slider, which is placed in between column 1 and column 3. Column 2 contains slider itself. But when i move the slider from column1 on column 3. That means column1 will only be visible right now. But when i move the slider to the right corer it clears the screen. Please find herewith my code...... <Grid Name="grdTopLeft" Grid.Row="1" Grid.Column="0" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Margin="0, 0, 0, 0" > <radNavigation:RadTabControl x:Name="layerTabControl" TabStripPlacement="Top" Style="{StaticResource IControllerRadTab}"> <radNavigation:RadTabItem Header="{Binding SelectedLayer.Name}" Style="{StaticResource IRadTabItem}"> <Page:WordView x:Name="WordView" Tag="DefaultLayer"/> </radNavigation:RadTabItem> </radNavigation:RadTabControl> </Grid> <!-- Top Splitter --> <basic:GridSplitter Grid.Row="1" Grid.Column="1" Width="3" Style="{StaticResource GridSplitterStyle}" VerticalAlignment="Stretch" HorizontalAlignment="Center" IsTabStop="False"/> <!--Top Right: Related--> <Grid Grid.Row="1" Grid.Column="2" VerticalAlignment="Stretch" HorizontalAlignment="Stretch" Margin="0, 0, 0, 0"> <Grid.RowDefinitions> <RowDefinition Height="Auto" /> <RowDefinition Height="*" /> </Grid.RowDefinitions> <radNavigation:RadTabControl x:Name="LayersTabControl" TabStripPlacement="Top" ItemContainerStyle="{StaticResource IRadTabItem}" ItemsSource="{Binding TabItems}" Style="{StaticResource IControllerRadTab1}" SelectedIndex="{Binding ActiveTab,Mode=TwoWay}" SelectionChanged="LayersTabControl_SelectionChanged" /> <Grid Grid.Row="1" Background="#EFF2F7" VerticalAlignment="Stretch" HorizontalAlignment="Stretch" > <Page:WordView x:Name="RelatedView" Margin="5,5,5,5" Tag="ActiveLayer"/> </Grid> </Grid> Can anyone please help me out from this issue..... Thanks in advance. Mahesh

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  • Show random string.

    - by zaid
    i am trying to display a random string each time a button is pressed from a set of strings defined in strings.xml . this is an example of the strings ID's <string name="q0"> <string name="q1"> <string name="q2"> <string name="q3"> <string name="q4"> java code for getting a random string. private static final Random rgenerator = null; int RandomQ = R.string.q0 (rgenerator.nextInt(5) + 1); String q = getString(RandomQ); if i try to use this java code i get an error at "q0" in R.string.q0 which is The method q0(int) is undefined for the type R.string if i try to use the quick fix and create a method, it works. but it wont let me save or run the app because it replaces my create method and shows this message R.java was modified manually! Reverting to generated version! thanks for reading.

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  • reinitialize an object with self.__init__(...)

    - by Kara Jevo
    Could anybody explain whether it is safe to reinitialize an object by calling "self.init(". as shown in the following simplified example? The reason i'm asking is that i couldn't find this method neither in several python books nor in internet. There are some who suggest to list all attributes and set them to initial value one by one. Basically i want to set my object to initial state after it has finished some tasks. class Book(object): def __init__(self,name,author): self.name = name self.author = author self.copies = 5 def reset(self): self.__init__(self.name,self.author) def incrementCopy(self): self.copies += 1 Kite = Book('kite runner','khaled hosseini') print 'initial number of copies:', Kite.copies Kite.incrementCopy() Kite.incrementCopy() Kite.incrementCopy() print '3 copies are added:', Kite.copies Kite.reset() print 'number of copies are reinitialized', Kite.copies initial number of copies: 5 3 copies are added: 8 number of copies are reinitialized 5

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  • spring mvc nested model validation

    - by hguser
    I have two models : User,Project public class Project{ private int id; @NotEmpty(message="Project Name can not be empty") private String name; private User manager; private User operator; //getter/setter omitted } public class User{ private int id; private String name; //omit other properties and getter/setter } Now, when I create a new Project, I will submit the following parameters to ProjectController: projects?name=jhon&manager.id=1&operator.id=2... Then I will create a new Project object and insert it to db. However I have to validate the id of the manager and operator is valid,that's to say I will validate that if there is matched id in the user table. So I want to know how to implement this kind of validation?

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  • Ternary operator in if-statement?

    - by Pindatjuh
    I've written the following if-statement in Java: if(methodName.equals("set" + this.name) || isBoolean() ? methodName.equals("is" + this.name) : methodName.equals("get" + this.name)) { ... } Is this a good practice to write such expressions in if, to separate state from condition? And can this expression be simplified?

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  • Document key usage in Dictionary

    - by phq
    How can I document the key usage in a Dictionary so that it shows in Visual studio when coding using that object? I'm looking for something like: /// <param name="SpecialName">That Special Name</param> public Dictionary<string,string> bar; So far the best attempt has been to write my own class: public class SpecialNameDictionary : IDictionary<string, string> { private Dictionary<string, string> data = new Dictionary<string, string>(); /// <param name="specialName">That Special Name</param> public string this[string specialName] { get { return data[specialName]; } } } But It adds a lot of code that doesn't do anything. Additionally I must retype every Dictionary method to make it compile. Is there a better way to achive the above?

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  • PHP: Over-writing session variables

    - by Tom
    Hi, Question related to PHP memory-handling from someone not yet very experienced in PHP: If I set a PHP session variable of a particular name, and then set a session variable of the exact same name elsewhere (during the same session), is the original variable over-written, or does junk accumulate in the session? In other words, should I be destroying a previous session variable before creating a new one of the same name? Thank you.

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  • Can CFHEADER values be read by other code?

    - by Aidan Whitehall
    The code <cfheader name="Test" value="1"> <cfheader name="Test" value="2"> results in the header "Test: 2" being sent to the browser (as seen using HttpFox). Is there a way for the second line of code to determine if a header with the same name has already been written using CFHEADER? Thanks!

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  • Not loading associations without proxies in NHibernate

    - by Alice
    I don't like the idea of proxy and lazy loading. I don't need that. I want pure POCO. And I want to control loading associations explicitly when I need. Here is entity public class Post { public long Id { get; set; } public long OwnerId { get; set; } public string Content { get; set; } public User Owner { get; set; } } and mapping <class name="Post"> <id name="Id" /> <property name="OwnerId" /> <property name="Content" /> <many-to-one name="Owner" column="OwnerId" /> </class> However if I specify lazy="false" in the mapping, Owner is always eagerly fetched. I can't remove many-to-one mapping because that also disables explicit loading or a query like from x in session.Query<Comment>() where x.Owner.Title == "hello" select x; I specified lazy="true" and set use_proxy_validator property to false. But that also eager loads Owner. Is there any way to load only Post entity?

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  • jquery funtion fired when dropdownlist selectedvalue

    - by Rahat Saini
    i have a jquery animate function which i want to call if the selectedvalue for my dropdown list is X <script> $(function () { var state = true; ($("#button").click)(function () { if (state) { $("#effect").animate({ backgroundColor: "#aa0000", color: "#fff", width: 500 }, 1000); } else { $("#effect").animate({ backgroundColor: "#fff", color: "#000", width:500 }, 1000); } state = !state; }); });

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  • filter by multiple attributes

    - by cosy
    I have the table : id id_products id_atribut name value 1 13 8 autdio 2.1 2 13 9 hdd 200 Gb 3 13 10 cd-rom 2 4 20 8 audio 2.1 the problem is, how can i select from this table where name="audio" and value="2.1" and name="hdd" and value="200 gb" and return id_products=13 .... How can i do this?

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  • how to connect to two databases of oracle using dblink

    - by KASHIFAMAN
    i am tring to use db link for that i have first change the name of both databases to sol1(remote) and sol3(local) then i create a db-link on sol3 CREATE DATABASE LINK SOL1.SWORLD CONNECT TO TEST IDENTIFIED BY TEST USING SOL1; LINK CREATED ON SQL / SELECT * FROM [email protected] MASSAGE SQL COULD NOT RESOLVE THE SERVICE NAME THEN I DROP THE DATABASE LINK AND CREATE A LINK FROM ORACLE ENTERPRISE SCHEMA MANAGER I CREATE A PUBLIC LINK OF FIXED USER AFTED LOGIN AND PASSWORD I ADD THE NAME IN SERVICE TAB AS SOL1 WHEN I TEST TAHT CONNECTION MASSAGE APPERAR LINK IS NOT ACTIVE

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  • JPA/Hibernate Parent/Child relationship

    - by NubieJ
    Hi I am quite new to JPA/Hibernate (Java in general) so my question is as follows (note, I have searched far and wide and have not come across an answer to this): I have two entities: Parent and Child (naming changed). Parent contains a list of Children and Children refers back to parent. e.g. @Entity public class Parent { @Id @Basic @GeneratedValue(strategy = GenerationType.IDENTITY) @Column(name = "PARENT_ID", insertable = false, updatable = false) private int id; /* ..... */ @OneToMany(cascade = { CascadeType.ALL }, fetch = FetchType.LAZY) @JoinColumn(name = "PARENT_ID", referencedColumnName = "PARENT_ID", nullable = true) private Set<child> children; /* ..... */ } @Entity public class Child { @Id @Basic @GeneratedValue(strategy = GenerationType.IDENTITY) @Column(name = "CHILD_ID", insertable = false, updatable = false) private int id; /* ..... */ @ManyToOne(cascade = { CascadeType.REFRESH }, fetch = FetchType.EAGER, optional = false) @JoinColumn(name = "PARENT_ID", referencedColumnName = "PARENT_ID") private Parent parent; /* ..... */ } I want to be able to do the following: Retrieve a Parent entity which would contain a list of all its children (List), however, when listing Parent (getting List, it of course should omit the children from the results, therefore setting FetchType.LAZY. Retrieve a Child entity which would contain an instance of the Parent entity. Using the code above (or similar) results in two exceptions: Retrieving Parent: A cycle is detected in the object graph. This will cause infinitely deep XML... Retrieving Child: org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: xxxxxxxxxxx, no session or session was closed When retrieving the Parent entity, I am using a named query (i.e. calling it specifically) @NamedQuery(name = "Parent.findByParentId", query = "SELECT p FROM Parent AS p LEFT JOIN FETCH p.children where p.id = :id") Code to get Parent (i.e. service layer): public Parent findByParentId(int parentId) { Query query = em.createNamedQuery("Parent.findByParentId"); query.setParameter("id", parentId); return (Parent) query.getSingleResult(); } Why am I getting a LazyInitializationException event though the List property on the Parent entity is set as Lazy (when retrieving the Child entity)?

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  • Django display manytomany field in form when definition is on other model

    - by John
    Hi I have the definition for my manytomany relationship on one model but want to display the field on the form of my other model. How do I do this? for example: # classes class modelA(models.Model): name = models.CharField(max_length=300) manytomany = models.ManyToManyField(modelA) class modelB(models.Model): name = models.CharField(max_length=300) # forms class modelBForm(forms.ModelForm): class Meta: model = modelB If I then used modelBForm it would show a select box with the models from modelA rather than just name. Thanks

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  • Equivalent of System.Windows.Forms.Cursor in Web Application

    - by Vishwa
    Hi I have a code in windows application now i am trying to implement in web Application but it is showimg that it ths no cursor class (System.Windows.Forms.Cursor )so..wat is the equivalent in web application. Here is my code private void btnGo_Click(System.Object sender, System.EventArgs e) { this.Cursor = Cursors.WaitCursor; Application.DoEvents(); // Load the images. Bitmap bm1 = (Bitmap) (Image.FromFile(txtFile1.Text)); Bitmap bm2 = (Bitmap) (Image.FromFile(txtFile2.Text)); // Make a difference image. int wid = Math.Min(bm1.Width, bm2.Width); int hgt = Math.Min(bm1.Height, bm2.Height); Bitmap bm3 = new Bitmap(wid, hgt); // Create the difference image. bool are_identical = true; int r1; int g1; int b1; int r2; int g2; int b2; int r3; int g3; int b3; Color eq_color = Color.White; Color ne_color = Color.Transparent; for (int x = 0; x <= wid - 1; x++) { for (int y = 0; y <= hgt - 1; y++) { if (bm1.GetPixel(x, y).Equals(bm2.GetPixel(x, y))) { bm3.SetPixel(x, y, eq_color); } else { bm1.SetPixel(x, y, ne_color); are_identical = false; } } } // Display the result. picResult.Image = bm1; Bitmap Logo = new Bitmap(picResult.Image); Logo.MakeTransparent(Logo.GetPixel(1, 1)); picResult.Image = (Image)Logo; this.Cursor = Cursors.Default; if ((bm1.Width != bm2.Width) || (bm1.Height != bm2.Height)) { are_identical = false; } if (are_identical) { MessageBox.Show("The images are identical"); } else { MessageBox.Show("The images are different"); } //bm1.Dispose() // bm2.Dispose() }

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  • How do I restrict foreign keys choices to related objects only in django

    - by Jeff Mc
    I have a two way foreign relation similar to the following class Parent(models.Model): name = models.CharField(max_length=255) favoritechild = models.ForeignKey("Child", blank=True, null=True) class Child(models.Model): name = models.CharField(max_length=255) myparent = models.ForeignKey(Parent) How do I restrict the choices for Parent.favoritechild to only children whose parent is itself? I tried class Parent(models.Model): name = models.CharField(max_length=255) favoritechild = models.ForeignKey("Child", blank=True, null=True, limit_choices_to = {"myparent": "self"}) but that causes the admin interface to not list any children.

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  • Learning JavaScript - What is the BEST ONLINE RESOURCE?

    - by Chris Jacob
    The Goal: Use votes to rank nominated sites. The first answer to reach 100+ votes will be accepted. Please answer following these 5 simple rules: ONE SITE per answer. Link to each page if nominating a "series" of resources on a SITE. No "offline" books. Only online resources (tutorials, API references, blogs, screencasts, etc). Don't add "subjective" details/notes in your answer. Add them as a comment to the answer. Don't post duplicates. If your favourite is already listed Up Vote It! Example Answer: Site Name http://www.example.com Example Answer (site with a series of resources): Site Name http://www.example.com Series Name A http://www.example.com/video/a/1 http://www.example.com/video/a/2 Series Name B http://www.example.com/video/b/1

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