Search Results

Search found 20401 results on 817 pages for 'null coalescing operator'.

Page 589/817 | < Previous Page | 585 586 587 588 589 590 591 592 593 594 595 596  | Next Page >

  • Wpf user control button command is not firing in viewmodel

    - by mani1985
    hi, i have a user control in which there is a button. i wrote icommand in the viewmodel for the button to call some function. when i use this user control in some other page ,the user control button click is not working. my xaml Save my view model private ICommand _insertNewNote; public ICommand InsertNewNote { get { if (_insertNewNote == null) { _insertNewNote = new RelayCommand( param = this.InsertNewExceptionNote()); } return _insertNewNote; } } public void InsertNewExceptionNote() { //... } my problem is when i use this user control in some page like this the user control is getting displayed in the page. but the button in the user control is not firing when i click it. user control view model icommand is not at all initialized. please provide me a solution. Thanks in advance.

    Read the article

  • question about php decode JSON

    - by cj333
    Hi, I still have some question about php decode JSON. the JSON return like this. all({"Total":30,"Debug":null,"Documents":[ { "DocTitle":"Image: A municipal police officer takes positio", "Docmultimedia":[ { "DocExpire":"2/7/2011 1:39:02 PM" } ] } ...] }); this is my php code: foreach ($data->Documents as $result) { echo htmlspecialchars($result->DocTitle).'<br />'; if(!empty($result->Docmultimedia)){ echo htmlspecialchars($result->Docmultimedia->DocExpire).'<br />'; } } It return Warning: Invalid argument supplied for foreach(). and echo htmlspecialchars($result->Docmultimedia->DocExpire), is it write right? Thanks all.

    Read the article

  • Ampersand in JSON/PHP in POST

    - by svenkapudija
    I'm having a text field which is send via JSON and jQuery (wrapped with .toJSON function) to my server via AJAX and POST request. On PHP side I'm doing json_decode . Everything works but if I put ampersand (&) inside it splits up the POST parameter so its incomplete on PHP side (at least what var_dump($_POST) is writing out). Shouldn't the toJSON and json_decode do all the job (escaping)? I tried encodeURIComponent, & to &amp;, & to \u0026 and it's not working. What I'm doing wrong? AJAX call function execute() { this.setupUrl(); return $.ajax({ type: this.requestMethod, data: this.getDataParams(), url: this.url }); } function getDataParams() { if(this.data != undefined) { if(this.requestMethod == 'POST' || this.requestMethod == 'PUT') { return "data=" + $.toJSON(this.data); } else if (this.requestMethod == 'GET') { return this.data; } } else { return null; } }

    Read the article

  • how to find datakeys in oncheckedchanged event ?

    - by subodh
    <asp:Panel ID="pnlFocusAreaPanel" runat="server" GroupingText="Focus Area" Width="800"> <table cellspacing="0" cellpadding="0" width="750"> <tr> <td> <asp:GridView ID="dgFocusAreaDetails" runat="server" Width="100%" CssClass="dgStyle" AutoGenerateColumns="False" BorderColor="Silver" BorderWidth="1px" CellPadding="0" ShowHeader="False" OnSelectedIndexChanged="dgFocusAreaDetails_SelectedIndexChanged" DataKeyNames="PK_ID"> <FooterStyle Font-Underline="True" HorizontalAlign="Center" VerticalAlign="Middle"> </FooterStyle> <Columns> <asp:TemplateField HeaderText="Focus Area" HeaderStyle-BackColor="Silver"> <ItemStyle Width="90%" /> <ItemTemplate> <asp:Label runat="server" ID="lblFocusArea" Text='<%# DataBinder.Eval(Container.DataItem, "FOCUS_AREA_NAME").ToString()%>'> </asp:Label> </ItemTemplate> </asp:TemplateField> <asp:TemplateField HeaderText="Is Current Valid" HeaderStyle-BackColor="Silver"> <ItemStyle Width="10%" HorizontalAlign="Center" /> <ItemTemplate> <asp:CheckBox ID="chkFocusArea" runat="server" OnCheckedChanged="OnCheckChangedEvent" AutoPostBack="true" /> </ItemTemplate> </asp:TemplateField> </Columns> </asp:GridView> </td> </tr> <tr> <td align="left"> <asp:TextBox ID="txtFocusArea" runat="server" Width="300px" CausesValidation="true" CssClass="txtStyle" ValidationGroup="focusArea"> </asp:TextBox> <cc1:TextBoxWatermarkExtender ID="txtFocusAreaWaterMark" runat="server" TargetControlID="txtFocusArea" WatermarkText="Add Focus Area" WatermarkCssClass="WaterMarkStyle"> </cc1:TextBoxWatermarkExtender> <asp:Button ID="btnAddFocusArea" runat="server" Text="AddFocusArea" CssClass="btnStyle" OnClick="btnAddFocusArea_Click" CausesValidation="true" ValidationGroup="focusArea" /> <asp:RequiredFieldValidator ID="reqtxtFocusArea" runat="server" ControlToValidate="txtFocusArea" ErrorMessage="Please enter focus area" Display="Dynamic" ValidationGroup="focusArea"> </asp:RequiredFieldValidator> <asp:RegularExpressionValidator ID="regexFocusArea" runat="server" ErrorMessage="Invalid characters(<,>,#)" ControlToValidate="txtFocusArea" ValidationExpression="^([^&lt;#&gt;]*)$" ValidationGroup="focusArea" Display="Dynamic" SetFocusOnError="true"> </asp:RegularExpressionValidator> </td> </tr> </table> </asp:Panel> and in code behind protected void btnAddFocusArea_Click(object sender, EventArgs e) { string strFocusArea = txtFocusArea.Text; OleDbConnection myConnection = new OleDbConnection(ConfigurationSettings.AppSettings["SQLConnectionString"]); if (strFocusArea == string.Empty || strFocusArea == txtFocusAreaWaterMark.WatermarkText) { lblError.Text = "Focus area is not entered"; } else { string insertQuery = "INSERT INTO LK_CODECAT_FOCUS_AREA(FOCUS_AREA_NAME,FK_ADDED_BY,ADDED_ON) "+ " VALUES('" + strFocusArea + "', "+Session["UserID"] +", GETDATE())"; try { myConnection.Open(); OleDbCommand myCommandToInsert = new OleDbCommand(insertQuery, myConnection); myCommandToInsert.ExecuteNonQuery(); } catch(Exception exc) { ExceptionLogger.LogException(exc); } finally { if (myConnection != null) { myConnection.Close(); } } PopulateFocusArea(); } txtFocusArea.Text = txtFocusAreaWaterMark.WatermarkText; } private void PopulateFocusArea() { OleDbConnection myConnection = new OleDbConnection(ConfigurationSettings.AppSettings["SQLConnectionString"]); string selectQuery = "SELECT PK_ID, FOCUS_AREA_NAME, IS_CURRENT_FOCUS FROM LK_CODECAT_FOCUS_AREA LKCFA ORDER BY FOCUS_AREA_NAME"; if (Session["RoleID"].ToString() == "1" || ((Session["WorkID"].ToString() != "9") || (Session["WorkID2"].ToString() != "9") || (Session["WorkID3"].ToString() != "9"))) { try { myConnection.Open(); OleDbCommand myCommandFocusArea = new OleDbCommand(selectQuery, myConnection); OleDbDataAdapter myAdapter = new OleDbDataAdapter(myCommandFocusArea); DataSet ds = new DataSet(); myAdapter.Fill(ds); dgFocusAreaDetails.DataSource = ds; dgFocusAreaDetails.ShowHeader = true; dgFocusAreaDetails.DataBind(); } catch (Exception exc) { ExceptionLogger.LogException(exc); } finally { if (myConnection != null) { myConnection.Close(); } } } } protected void dgFocusAreaDetails_SelectedIndexChanged(object sender, EventArgs e) { string selectedCategory = dgFocusAreaDetails.SelectedRow.Cells[1].Text; int index = dgFocusAreaDetails.SelectedIndex; lblError.Text = dgFocusAreaDetails.DataKeys[index].Value.ToString(); } public void OnCheckChangedEvent(object sender, EventArgs e) { CheckBox chk = (CheckBox)sender; string chkfocusarea = ((Control)chk).ID; //string focusAreaDetails = dgFocusAreaDetails.SelectedRow.Cells[0].Text; int index =Convert.ToInt32(dgFocusAreaDetails.SelectedIndex); if (chk.Checked) { string updateQuery = "UPDATE [LK_CODECAT_FOCUS_AREA] SET [IS_CURRENT_FOCUS] = 1 WHERE PK_ID = " +Convert.ToInt32( dgFocusAreaDetails.DataKeys[index].Value)+" "; } else { lblError.Text = "unchecked"; } } i want to know how i find the datakeyvalue on checked event.

    Read the article

  • Why should pop() take an argument?

    - by Stephano
    Quick background I'm a Java developer who's been playing around with C++ in my free/bored time. Preface In C++, you often see pop taking an argument by reference: void pop(Item& removed); I understand that it is nice to "fill in" the parameter with what you removed. That totally makes sense to me. This way, the person who asked to remove the top item can have a look at what was removed. However, if I were to do this in Java, I'd do something like this: Item pop() throws StackException; This way, after the pop we return either: NULL as a result, an Item, or an exception would be thrown. My C++ text book shows me the example above, but I see plenty of stack implimentations taking no arguments (stl stack for example). The Qustion How should one implement the pop function in C++? The Bonus Why?

    Read the article

  • Setting custom HTTP request headers in an URL object doesn't work.

    - by Blagovest Buyukliev
    I am trying to fetch an image from an IP camera using HTTP. The camera requires HTTP basic authentication, so I have to add the corresponding request header: URL url = new URL("http://myipcam/snapshot.jpg"); URLConnection uc = url.openConnection(); uc.setRequestProperty("Authorization", "Basic " + new String(Base64.encode("user:pass".getBytes()))); // outputs "null" System.out.println(uc.getRequestProperty("Authorization")); I am later passing the url object to ImageIO.read(), and, as you can guess, I am getting an HTTP 401 Unauthorized, although user and pass are correct. What am I doing wrong? I've also tried new URL("http://user:pass@myipcam/snapshot.jpg"), but that doesn't work either.

    Read the article

  • R: Converting a list of data frames into one data frame

    - by JD Long
    I have code that at one place ends up with a list of data frames which I really want to convert to a single big data frame. I got some pointers from an earlier question which was trying to do something similar but more complex. Here's an example of what I am starting with (this is grossly simplified for illustration): listOfDataFrames <- NULL for (i in 1:100) { listOfDataFrames[[i]] <- data.frame(a=sample(letters, 500, rep=T), b=rnorm(500), c=rnorm(500)) } I am currently using this: df <- do.call("rbind", listOfDataFrames) *EDIT* whoops. In my haste to implement what I had "learned" in a previous question I totally screwed up. Yes, the unlist() is just plain wrong. I'm editing that out of the question above.

    Read the article

  • Can I enable PreviewClick using InputBindings in WPF?

    - by No hay Problema
    I want to detect when a user clicks on an item on a listview, without using events as I do command binding and I don't like all the nonsense of the behaviours. I have tried this: <ListView x:Name="MainList" Margin="2,8,6,8" Background="Black" ItemsSource="{Binding Path=AssetsVM.Data, Mode=OneWay}" BorderBrush="{x:Null}" > <ListView.InputBindings> <MouseBinding Command="{Binding Path=AssetsVM.SelectActivo}" CommandParameter="{Binding ElementName=MainList, Path=SelectedItem}" MouseAction="LeftClick" /> </ListView.InputBindings> This works fine if I click on the listview but does not work on the items, what I need is either a way to enable "Preview" or have a MouseAction/Gesture that behaves as preview, is it possible? Thanks

    Read the article

  • how to add a variables which comes from dataset in for loop Collection array in c#?

    - by leventkalay1986
    I have a collection of RSS items protected Collection<Rss.Items> list = new Collection<Rss.Items>(); The class RSS.Items includes properties such as Link, Text, Description, etc. But when I try to read the XML and set these properties: for (int i = 0; i < dt.Rows.Count; i++) { row = dt.Rows[i]; list[i].Link.Equals(row[0].ToString()); list[i].Description.Equals( row[1].ToString()); list[i].Title.Equals( row[2].ToString()); list[i].Date.Equals( Convert.ToDateTime(row[3])); } I get a null reference exception on the line list[i].Link.Equals(row[0].ToString()); What am I doing wrong?

    Read the article

  • How to launch a Windows process as 64-bit from 32-bit code?

    - by Jonas
    To pop up the UAC dialog in Vista when writing to the HKLM registry hive, we opt to not use the Win32 Registry API, as when Vista permissions are lacking, we'd need to relaunch our entire application with administrator rights. Instead, we do this trick: ShellExecute(hWnd, "runas" /* display UAC prompt on Vista */, windir + "\\Reg", "add HKLM\\Software\\Company\\KeyName /v valueName /t REG_MULTI_TZ /d ValueData", NULL, SW_HIDE); This solution works fine, besides that our application is a 32-bit one, and it runs the REG.EXE command as it would be a 32-bit app using the WOW compatibility layer! :( If REG.EXE is ran from the command line, it's properly ran in 64-bit mode. This matters, because if it's ran as a 32-bit app, the registry keys will end up in the wrong place due to registry reflection. So is there any way to launch a 64-bit app programmatically from a 32-bit app and not have it run using the WOW64 subsystem like its parent 32-bit process (i.e. a "*" suffix in the Task Manager)?

    Read the article

  • MVC binding form data problem.

    - by John
    I am using an object that matches all the fields in my form. I then use the default binding to populate the object in my action, like this; public ActionResult GetDivisionData(DivisionObj FormData) My DivisionObj initializes all it's values to string.empty in the constructor. The problem is that when the binder populates the model from the posted form data, any data that is not posted is set to null in the object, eventhough I initialized the object to contain empty strings. Is there a way to change this so that unposted data will be an empty string.

    Read the article

  • form not showing for empty records

    - by Chris Hodges
    I have a relatively simple PHP page called editcustomers with 3 columns. The problem I'm having is that the form will show when there is a record in the database and the fields will be populated with that info. When no such records exists, the form is not even shown, eliminating the possibility to insert a record. My page layout is as follows: Column 1 shows a form containing customer information, allowing it to be edited. Column 2 allows ordering of products and showing how many products were ordered Column 3 shows the total paid so far, and the total owing. The code for the page I have at present: <html> <?php $id = $_GET['id']; require_once('connect.php'); $sth = $dbh->query("SELECT * FROM users where id = '$id';"); $sth->setFetchMode(PDO::FETCH_ASSOC); $eth = $dbh->query("SELECT * FROM purchases where id = '$id';"); $eth->setFetchMode(PDO::FETCH_ASSOC); ?> <div id="main"> <div id="left"> <form name="custInfo" action ="process.php" method ="post" > <input type = "hidden" name ="formType" value="custInfo"/> <?php while($row = $sth->fetch()){ ?> <p><input type = "hidden" name ="id" value="<?php echo $row["id"] ?>"/> <p><input type = "text" name ="firstName" size ="30" value=" <?php echo $row["firstName"]?>"/> <p><input type = "text" name ="lastName" size ="30" value="<?php echo $row["lastName"]?>"/> <p><input type = "text" name ="country" size ="30" value="<?php echo $row["country"]?>"/> <p></p> <input type="submit" value="Update" /> <?php }?> </div> <div id="mid"> <form name="custCosts" action ="process.php" method ="post" > <input type = "hidden" name ="formType" value="custCosts"/> <?php while($row = $eth->fetch()){ ?> <p><input type = "hidden" name ="id" value="<?php echo $row["id"] ?>"/> <p><input type = "text" name ="amountOwed" size ="30" value=" <?php echo $row["amountOwed"]?>"/> <p><input type = "text" name ="numAaa" size ="30" value="<?php echo $row["numAaa"]?>"/> <p><input type = "text" name ="numBbb" size ="30" value="<?php echo $row["numBbb"]?>"/> <p></p> <input type="submit" value="Update" /> <?php }?> </div> <div id="right"> <b>Total Balance</b> <p> Money owed: </p> <p> aaa total: </p> <p> bbb total: </p> <p> Total: </p> <input type = "text" name ="pay" size ="20" /></p> <input type="submit" value="Make Payment" /> </div> <?php $dbh =null; ?> </body> </html> And the code for all the database trickery: <?php require_once 'connect.php'; $formType = $_POST['formType']; $id = $_POST['id']; $firstName = $_POST['firstName']; $lastName = $_POST['lastName']; $country = $_POST['country']; $amountOwed = $_POST['amountOwed ']; $numAaa = $_POST['numAaa']; $numBbb = $_POST['numBbb']; if(empty($_POST['id'])) { $sth = $dbh->prepare("INSERT INTO customers (firstName, lastName, country) VALUES ('$firstName', '$lastName', '$country')"); $sth->execute(); } elseif(!empty($_POST['id']) && !isset($_POST['stayCost']) && $_POST['formType'] == 'guestInfo'){ $sth = $dbh->prepare("UPDATE customers SET firstName = '$firstName', lastName = '$lastName', country = '$country' WHERE id = '$id'"); $sth->execute(); }elseif(!empty($_POST['id']) && isset($_POST['stayCost']) && $_POST['formType'] == 'guestInfo'){ $sth = $dbh->prepare("INSERT INTO purchases (id, amountOwed, numAaa, numBbb) VALUES ('$id', '$amountOwed', '$numAaa', '$numBbb'"); $sth->execute(); }elseif(!empty($_POST['id']) && $_POST['formType'] == 'guestCosts'){ $sth = $dbh->prepare("UPDATE purchases SET amountOwed= '$amountOwed', numAaa = '$numAaa', numBbb= '$numBbb' WHERE id = '$id'"); $sth->execute(); } $dbh =null; ?> Why does the form not even display if there is no record? An error or something I might understand....but the form is still in the HTML and should still be being output, from what I can see. Why is this not the case?

    Read the article

  • How to call window developed in C# through FindWindow api.

    - by Sagar Mane
    Hello All, I am new to C# and xaml code. I have one sample code which implemented in C#. when I have reviewed xaml file I got <Window x:Class="test.MainWindow">. So does test.MainWindow indicate the class name for this window. I am trying to invoke this window from other application which is developed in win 32. I am trying to pass this class name to FindWindow("test.MainWindow",NULL) ,but it fails. does anything missing over there. how I can change the class name of window developed in C#? Thanks, Sagar

    Read the article

  • Servlets response.sendRedirect(String url) doesn't seems to send the encoding, why?

    - by Daziplqa
    Hi folks, I have some Servlet that explicity sets the character encoding and redirect to some servlet class Servlet1 extends HttpServle{ void doGet(..... ){ // ... request.setCharacterEncoding("UTF-8"); response.setCharacterEncoding("UTF-8"): //...... response.redirect(servlet2); } } class Servlet2 extends HttpServle{ void doGet(..... ){ // ... request.getCharacterEncoding(); // prints null ?? why??? //...... } } So, why the character encoding not being send with the request?

    Read the article

  • How do I post dynamic information to Facebook from Flash?

    - by daidai
    I am building a Flash site and I want to be able to allow the user to post dynamically produced information to their Facebook wall, but I can't find out any information within the Facebook developers documentation. Its simple enough in Javascript/HTML: <script type="text/javascript"> function callPublish(msg, attachment, action_link) { FB.ensureInit(function () { FB.Connect.streamPublish('', attachment, action_link); }); } </script> <input type="button" onclick="callPublish('',{'name':'Post this to Facebook','href':'http://dev2.com','description':'this is some body test'},null);return false;" value="Preview Dialog" /> As you can see I don't want to create sessions or login or anything complicated, just post to info to their wall.

    Read the article

  • Database design: objects with different attributes

    - by Álvaro G. Vicario
    I'm designing a product database where products can have very different attributes depending on their type, but attributes are fixed for each type and types are not manageable at all. E.g.: magazine: title, issue_number, pages, copies, close_date, release_date web_site: name, bandwidth, hits, date_from, date_to I want to use InnoDB and enforce database integrity as much as the engine allows. What's the recommended way to handle this? I hate those designs where tables have 100 columns and most of the values are NULL so I thought about something like this: product_type ============ product_type_id INT product_type_name VARCHAR product ======= product_id INT product_name VARCHAR product_type_id INT -> Foreign key to product_type.product_type_id valid_since DATETIME valid_to DATETIME magazine ======== magazine_id INT title VARCHAR product_id INT -> Foreign key to product.product_id issue_number INT pages INT copies INT close_date DATETIME release_date DATETIME web_site ======== web_site_id INT name VARCHAR product_id INT -> Foreign key to product.product_id bandwidth INT hits INT date_from DATETIME date_to DATETIME This can handle cascaded product deletion but... Well, I'm not fully convinced...

    Read the article

  • Scanner's Read Line returning NoSuchElementException

    - by Brian
    This is my first time using StackOverflow. I am trying to read a text file which consists of a single number one the first line. try { Scanner s = new Scanner(new File("HighScores.txt")); int temp =Integer.parseInt(s.nextLine()); s.close(); return temp; } catch (FileNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); } However, I get an error: java.util.NoSuchElementException: No line found at java.util.Scanner.nextLine(Unknown Source) at GameStart.getHighScore(GameStart.java:334) at GameStart.init(GameStart.java:82) at sun.applet.AppletPanel.run(Unknown Source) at java.lang.Thread.run(Unknown Source) I know that HighScores.txt is not empty, so why is this problem occuring? I tried using BufferedReader, and BufferReader.readLine() return null.

    Read the article

  • parsing xml attribute value

    - by vbNewbie
    I have been parsing xml content using the xmlreader and cannot use the xml document but so far it works getting all elementcontent except for the attribute contents. I need to parse the link below found in the following entry; <title>XXXX UUUUUU posted a</title> <category term="NotePosted" label="Note Posted"/> <link rel="alternate" type="html" href="http://www.dfsddsfdsf.com/profile.php?id=sdfdfsfdsdfddfsfd&amp;v=wall&amp;story_dbid=dssdfasdfdasfdsafafafa"/> <source>......... <source> I need the href tag in the link attribute but it keeps coming back null. While ureader.Read If ureader.HasAttributes Then fId = ureader.GetAttribute("href") If fId.Contains("?v=wall&amp") Then fIdList.Add(fId) Exit While End If If String.IsNullOrEmpty(fId) Then fId = "NOTHING" End If End If End While

    Read the article

  • routing difficulty

    - by user281180
    Part of my application maps resources stored in a number of locations onto web URLs like this: http://servername/Issue.aspx/Details?issueID=1504/productId=2345 Is it possible to construct an MVC route that matches this so that I get the path in its entirety passed into my controller? Either as a single string or possibly as an params style array of strings. In my Global.aspx I have routes.MapRoute( "Issue", "Issue/{Details}", new { controller = "Issue", action = "Details" }, new { issueId = @"\d+", productId = @"\d+" } ); I have tried the code RouteValueDictionary parameters = new RouteValueDictionary { {"Controller", "Issue"},{ "action", "Details" }, { "issueId", Test.ID }, {"productId", Test.Project.ID} }; VirtualPathData vpd = RouteTable.Routes.GetVirtualPath(null, parameters); var test = vpd.VirtualPath; test value is /Issue.aspx/Details?issueId=1504&productId=3625. How to generate URLs Using ASP.NET Routing and sends it to users and they should be able to open the page by clicking on the generated link. However, here the servername isn`t included. How can I have the servername with the the link as http://servername/Issue.aspx/Details?issueID=1504/productId=2345

    Read the article

  • How to hide action bar before activity is created, and then show it again?

    - by Ilya Izhovkin
    I need to implements splash screen in my honeycomb app. I use this code in activity's onCreate to show splash: setContentView(R.layout.splash); getActionBar().hide(); and this code to show main UI after some time: setContentView(R.layout.main); getActionBar().show(); But before onCreate is called and splash appears, there is small amount of time when action bar shown. How can I made it not to show? I tried to apply theme to activity without action bar: <item name="android:windowActionBar">false</item> but in that case getActionBar() always returns null and I found no way to show it again.

    Read the article

  • Deleting an element from an array in perl

    - by Flamewires
    Hey I'm wondering how i can get this code to work, basically i want to keep the lines of $filename as long as they contain the $user in the path. Sry, perl noob. open STDERR, ">/dev/null"; $filename=`find -H /home | grep $file`; @filenames = split(/\n/, $filename); for $i (@filenames) { if ($i =~ m/$user/) { #keep results } else { delete $i; # does not work. } } $filename = join ("\n", @filenames); close STDERR; I know you can delete like delete $array[index] but I don't have an index with this kind of loop that I know of.

    Read the article

  • Spring MVC 3.1 How to access HttpSession in Custom Authentication Provider (which implements AuthenticationProvider)

    - by user1506231
    My application calls a web service during the Authentication process (as shown in code below). How can I save some information in HttpSession during this process? This information like customer-account-number will be used in various other places in the application after the user is logged in. Is it possible to pass HttpSession parameter to the MyServiceManager's static login method? public class MyAuthenticationManager implements AuthenticationProvider { @Override public boolean supports(Class<? extends Object> authentication) { return authentication.equals(UsernamePasswordAuthenticationToken.class); } @Override public Authentication authenticate(Authentication authentication) { //MyServiceManager.login - makes a call to web service if(MyServiceManager.login(authentication.getName(), authentication.getCredentials().toString(), XXX_HTTP_SESSION_XXX)) { List<GrantedAuthority> authorities = new ArrayList<GrantedAuthority> (); authorities.add(new GrantedAuthorityImpl("ROLE_USER")); authorities.add(new GrantedAuthorityImpl("ROLE_SUPERVISOR")); return new UsernamePasswordAuthenticationToken(authentication.getName(), authentication.getCredentials(),authorities); } else { return null; } } }

    Read the article

  • how to draw a Bitmap to a Canvas with a variable alpha

    - by steelbytes
    Hi, I'm trying to draw a Bitmap to a Canvas with a variable amount of alpha. But I only get nothing (when alpha<255) or the 'full' bitmap (when alpha==255). Have also tried loading as a Drawable, and using drawable.setAlpha, but that gave the same result. my init BitmapFactory.Options opts = new BitmapFactory.Options(); opts.inScaled = false; opts.inSampleSize = 1; Bitmap img = BitmapFactory.decodeResource(getResources(),R.drawable.sample,opts); my onDraw() Paint p = new Paint(Paint.ANTI_ALIAS_FLAG|Paint.FILTER_BITMAP_FLAG); p.setColor((alpha<<24)+0xffffff); // alpha in range 0..255 canvas.drawBitmap(img, null, imgRect, p);

    Read the article

  • RoR model field without validators, has*, delegates, etc

    - by jackr
    How can I declare a field, in the Rails model, when it doesn't have any "has_" relations, or validations, or delegations? I just need to ensure its existence and column width in the schema. Currently, I have no mention of the field in the "schema section" of the model file, but it's referenced in various methods that use it, and this seems to work. However, depending on my exact creation workflow, the underlying database table may be created as t.binary "field_name", :limit => 32 or t.binary "field_name", :limit => 255 This is not a restriction on the value (any binary value is valid, even NULL), only on the table column declaration. As it happens, 32 is enough -- it never receives any larger value, it's only ever written to like this: self.field_name = SecureRandom.random_bytes(32)

    Read the article

  • Error: Get JSON Data from Web API Using Jquery

    - by Kenneth
    I'm really new at this. And I'm really stuck. I have the jquery code, it will load data from Web API, but it does not display on my page. $.getJSON("/api/Order", function(data) { if (data != null) { var str = ''; $.each(data, function (item) { str = '<li>' + item.ItemName + '</li>'; }); $("#contents").append(str); } }); Can anyone explain what is going on? Thanks.

    Read the article

< Previous Page | 585 586 587 588 589 590 591 592 593 594 595 596  | Next Page >