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• null value exception thrown when deserializing null value JSON.net

  - by Bharath

  Hi Friends I am trying to deserialize a hidden control field into a json object the code is as follows Dim settings As New Newtonsoft.Json.JsonSerializerSettings() settings.NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore Return Newtonsoft.Json.JsonConvert.DeserializeObject(Of testContract)(txtHidden.Text, settings) But I am getting the following exception. value cannot be null parameter name s: I even added the following lines but it still does not work out. Please help settings.MissingMemberHandling = Newtonsoft.Json.MissingMemberHandling.Ignore settings.ReferenceLoopHandling = Newtonsoft.Json.ReferenceLoopHandling.Ignore settings.ObjectCreationHandling = Newtonsoft.Json.ObjectCreationHandling.Replace Thanks Bharath

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• WPF StringFormat={0:C} showing as dollars

  - by Coesy

  Why does this line of code <TextBlock Text="{Binding Net, StringFormat=c}"/> Output the result as $xx.xx when all my regional settings are set to UK. I expect it to output it as £xx.xx. Any ideas? I have tried different variations of the stringformat including StringFormat={}{0:C} but still get the same result. Thanks for looking.

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• how to solve this error in XtraReports 'invalid property or parameter class'?

  - by ahmed

  How to solve this error message in Xtrareport , I am confused. I am binding to a XrLabel and this is the code Report.DataBindings.Add(New DevExpress.XtraReports.UI.XRBinding("empid", myds, "empno")) ` where empid is the Xrlabel text and myds is datasource , and empno is the data field where this data will be displayed on XrLabel(empid). when I debug it gives me error ' invalid property or parameter class '. Any help will be appreciated. Is my question clear ?

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• Prawn html formatting

  - by stevenheidel

  I have some simple lists and bold/italic text to format with prawn. How do I get prawn to pay attention to the html tags instead of just displaying them explicitly. If prawn can't do this, what are my other options?

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• ASP.NET MVC ajax chat

  - by nccsbim071

  I built an ajax chat in one of my mvc website. everything is working fine. I am using polling. At certain interval i am using $.post to get the messages from the db. But there is a problem. The message retrieved using $.post keeps on repeating. here is my javascript code and controller method. var t; function GetMessages() { var LastMsgRec = $("#hdnLastMsgRec").val(); var RoomId = $("#hdnRoomId").val(); //Get all the messages associated with this roomId $.post("/Chat/GetMessages", { roomId: RoomId, lastRecMsg: LastMsgRec }, function(Data) { if (Data.Messages.length != 0) { $("#messagesCont").append(Data.Messages); if (Data.newUser.length != 0) $("#usersUl").append(Data.newUser); $("#messagesCont").attr({ scrollTop: $("#messagesCont").attr("scrollHeight") - $('#messagesCont').height() }); $("#userListCont").attr({ scrollTop: $("#userListCont").attr("scrollHeight") - $('#userListCont').height() }); } else { } $("#hdnLastMsgRec").val(Data.LastMsgRec); }, "json"); t = setTimeout("GetMessages()", 3000); } and here is my controller method to get the data: public JsonResult GetMessages(int roomId,DateTime lastRecMsg) { StringBuilder messagesSb = new StringBuilder(); StringBuilder newUserSb = new StringBuilder(); List<Message> msgs = (dc.Messages).Where(m => m.RoomID == roomId && m.TimeStamp > lastRecMsg).ToList(); if (msgs.Count == 0) { return Json(new { Messages = "", LastMsgRec = System.DateTime.Now.ToString() }); } foreach (Message item in msgs) { messagesSb.Append(string.Format(messageTemplate,item.User.Username,item.Text)); if (item.Text == "Just logged in!") newUserSb.Append(string.Format(newUserTemplate,item.User.Username)); } return Json(new {Messages = messagesSb.ToString(),LastMsgRec = System.DateTime.Now.ToString(),newUser = newUserSb.ToString().Length == 0 ?"":newUserSb.ToString()}); } Everything is working absloutely perfect. But i some messages getting repeated. The first time page loads i am retrieving the data and call GetMessages() function. I am loading the value of field hdnLastMsgRec the first time page loads and after the value for this field are set by the javascript. I think the message keeps on repeating because of asynchronous calls. I don't know, may be you guys can help me solve this. or you can suggest better way to implement this.

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• setwidth of a dynamic textview

  - by sairam333

  For Example , I am using name.setWidth(100) for giving width to dynamic text view name .But this width is adjusted only android but in droid this space is not adjusted how we give the setwidth value that will adjust to both droid and android

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• Resize images in UIWebView to viewport size

  - by atz

  I'm displaying HTML with some images inside a UIWebView in my iPhone App. When the images are wider than the viewport of the iPhone I get horizontal scrollers which I don't want because its mostly about the text not the images. Is there a way to resize images displayed inside the UIWebView according to the width (best: even if the device is rotated)?

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• Android 2.2 - and exchange password policy enforcement

  - by Moshe

  Hi, In Android 2.2 site (link text it's written: Improved security with the addition of numeric pin or alpha-numeric password options to unlock device. Exchange administrators can enforce password policy across devices But while I'm using N1 with 2.2 and try to connect to my company exchange server it didn't enforce me to set a password, although connecting to the same server from Windows Mobile 6 device enforce this. I know that exchange server is configured to enforce password. Is there anything special the administrator need to do? Thank you, Moshe

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• C# bluetooth file send.

  - by cheesebunz

  i'm new to bluetooth development and i found the 32netfeet . Right now i'm able to search for bluetooth devices nearby and connect to them but how do i send a file e.g SendTest.txt? I tried buttonclick event using the OBEX but i don't understand this is my example code: using InTheHand.Net; using InTheHand.Net.Sockets; using InTheHand.Net.Bluetooth; namespace BluetoothIntheHand { public partial class Form2 : Form { private Guid service = BluetoothService.DialupNetworking; private BluetoothClient bluetoothClient; public Form2() { InitializeComponent(); } private void btnSearch_Click(object sender, EventArgs e) { BluetoothRadio.PrimaryRadio.Mode = RadioMode.Discoverable; BluetoothRadio myRadio = BluetoothRadio.PrimaryRadio; lblSearch.Text = "" + myRadio.LocalAddress.ToString(); bluetoothClient = new BluetoothClient(); Cursor.Current = Cursors.WaitCursor; BluetoothDeviceInfo[] bluetoothDeviceInfo = { }; bluetoothDeviceInfo = bluetoothClient.DiscoverDevices(10); comboBox1.DataSource = bluetoothDeviceInfo; comboBox1.DisplayMember = "DeviceName"; comboBox1.ValueMember = "DeviceAddress"; comboBox1.Focus(); Cursor.Current = Cursors.Default; } private void btnConnect_Click(object sender, EventArgs e) { if (comboBox1.SelectedValue != null) { try { bluetoothClient.Connect(new BluetoothEndPoint((BluetoothAddress)comboBox1.SelectedValue, service)); MessageBox.Show("Connected"); } catch (Exception ex) { MessageBox.Show(ex.Message); } } } private void btnSend_Click(object sender, EventArgs e) { bluetoothClient.Connect(new BluetoothEndPoint((BluetoothAddress)comboBox1.SelectedValue, service)); String addr = "112233445566"; Uri uri = new Uri("obex://"+@"SendTest.txt"); ObexWebRequest req= new ObexWebRequest(uri); ObexWebResponse rsp; } I found the guide but don't really knw hw to convert to C# ' The host part of the URI is the device address, e.g. IrDAAddress.ToString(), ' and the file part is the OBEX object name. Dim addr As String = "112233445566" Dim uri As New Uri("obex://" & addr & "/HelloWorld2.txt") Dim req As New ObexWebRequest(uri) Using content As Stream = req.GetRequestStream() ' Using a StreamWriter to write text to the stream... Using wtr As New StreamWriter(content) wtr.WriteLine("Hello World GetRequestStream") wtr.WriteLine("Hello World GetRequestStream 2") wtr.Flush() ' Set the Length header value req.ContentLength = content.Length End Using ' In this case closing the StreamWriter also closed the Stream, but ... End Using Dim rsp As ObexWebResponse = CType(req.GetResponse(),ObexWebResponse) Console.WriteLine("Response Code: {0} (0x{0:X})", rsp.StatusCode)

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• WPF - Bind listbox SelectedIndex to a TextBlock in the list.

  - by Malcolm

  Hi, I would like my listbox to number each item using the SelectedIndex property + 1. How would I do that to the Text property of a TextBlock in a DataTemplate of the listbox??? Malcolm EDIT: i dont think I mean the Selectedindex just the index of the listboxitem.

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• Custom SpinBoxField example

  - by redwoolf

  I'm attempting to build a custom SpinBoxField on the Blackberry that displays an icon next to text. I've been unable to find any example code. Subclassing drawRow, get, and getCount() have got me part of the way there, but my implementation still doesn't look or work like the TextSpinBoxField in the RIM Blackberry library. Has anyone source code for such a field that they would be willing to share here?

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• IE6 the last three characters in a div are being repeated else where in the page? really weird

  - by Jason

  Hey, Basically i have an issues (in IE6) where the last three characters of a line of text in a div are being repeated further down the page even though they are only in the HTML once. http://www.disturbmedia.com/jason/test/ please see the numbers in black, its always the last three characters that get repeated, so strange. I have never seen this before, its only in IE6? Anyone have any info?! Am super confused as to how this is happening. Thanks Jason

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• Facebook publishActivity: No error, but no activity published

  - by carlo.capocasa

  Hi, implementing publishActivity in PHP using the REST API using this code: $activity = array( 'message' => '{*actor*} did something.', 'action_link' => array( 'text' => 'Play Travians', 'href' => WEBROOT ) ); $activity = $facebook->api_client->dashboard_publishActivity($activity); I get a 15-digit number returned and no errors, however no activity appears in the logged in account or friends of this account. Help appreciated. Carlo

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• QWebView problem rendering embedded fonts

  - by user313724

  Hi, I'm trying to render a web page, in QT 4.5, that uses an embedded font. Most of the time this works as expected. Unfortunately, sometimes I get really weird behaviour. The font is rendered - apparently - off-by-one. For instance the text: "By" woukd appear as "Cz" Has anyone run into this before? And - more importantly - knows how to fix this?

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• Jquery: Datalink - Data linking

  - by Pickels

  I was trying out the Jquery Data linking proposal from Microsoft and noticed something strange. My objects get this extra property and I was wondering what the reason for that is. I first thought it was a mistake I made but I noticed their demo page does the same thing This is the json result of my objects: [{ "propertyName":"ProductNamese", "controlType":"Text", "jQuery1274021322131":6 }, { "propertyName":"Price", "controlType":"Number", "jQuery1274021322131":9 }, { "propertyName":"Description", "controlType":"TextArea", "jQuery1274021322131":12 } ] The property I am talking about is "jQuery1274021322131".

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• Regex to Match White Space or End of String

  - by Kirk

  I'm trying to find every instance of @username in comment text and replace it with a link. Here's my PHP so far: $comment = preg_replace('/@(.+?)\s/', '<a href="/users/${1}/">@${1}</a> ', $comment); The only problem is the regex is dependent upon there being whitespace after the @username reference. Can anyone help me tweak this so it will also match if it is at the end of the string?

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• Disable Plone Archetypes index/convert doc/pdf files

  - by hosting-schuppen

  Hi Stackoverflowers, if i rebuild my catalog in plone i get many of this infos: 2010-02-18T11:26:09 INFO Archetypes Error while trying to convert file contents to 'text/plain' in .getIndexable() of : Unable to find binary "wvHtml" in /sbin:/usr/sbin:/usr/local/sbin:/usr/local/bin:/usr/bin:/bin:/usr/X11R6/bin:/usr/games:/usr/lib/jvm/jre/bin This happens to doc and pdf files. I don't wanna convert docs or pdfs. How can i disable it completly? Thanks for the help!

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• Rails config use input field to change?

  - by Danny McClelland

  Hi Everyone, Following on from a previous question: I have created a config.yml file which is used to generate the content for the following: <%= configatron.site_name % So now, anywhere I have the above code snippet, will display the following: development: &local site_name: Survey Manager site_url: localhost:3000 What I am trying to work out, is how do I have a text field somewhere in the application that will edit the site_name? Thanks, Danny

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• Parsing a string using a delimiter to a TStringList, seems to also parse on spaces (Delphi)

  - by Daisetsu

  I have a simple string which is delimited by some character, let's say a comma. I should be able to create a TStringList and set it's delimiter to a comma then set the DelimitedText to the text I want to parse and it should be automaticlly parsed. The problem is when I look at the output it also includes spaces as delimiters and chops up my results. How can I avoid this, or is there a better way to do this.

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• LIMIT then RAND rather than RAND then LIMIT

  - by Larry

  I'm using full text search to pull rows. I order the rows based on score (ORDER BY SCORE) , then of the top 20 rows (LIMIT 20), I want to rand (RAND) the result set. So for any specific search term, I want to randomly show 5 of the top 20 results. My workaround is code based- where I put the top 20 into an array then randomly select 5. Is there sql way to do this?

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• asp.net mvc encode on form post

  - by Gidon

  Hello, I'm using a rich text editor in my asp.net mvc form (nicedit with a textarea) and when I submit the form on post, because it is not html encoded I get the following message: "A potentially dangerous Request.Form value was detected from the client" . How can I html encode the textarea on post ? I don't want to cancel the validation. Is there a way to use the html.encode helper on submit? Thank you.

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• Convert JSON query parameters to objects with JAX-RS

  - by deamon

  I have a JAX-RS resource, which gets its paramaters as a JSON string like this: http://some.test/aresource?query={"paramA":"value1", "paramB":"value2"} The reason to use JSON here, is that the query object can be quite complex in real use cases. I'd like to convert the JSON string to a Java object, dto in the example: @GET @Produces("text/plain") public String getIt(@QueryParam("query") DataTransferObject dto ) { ... } Does JAX-RS support such a conversion from JSON passed as a query param to Java objects?

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• Efficient way to get the most used keys in a HashMap - Java

  - by John Manak

  Hi! I have a HashMap where the key is a word and the value is a number of occurrences of that string in a text. Now I'd like to reduce this HashMap to only 15 most used words (with greatest numbers of occurrences). Do you have any idea to do this efficiently?

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• Is it possible to search using type information in visual studio

  - by SnOrfus

  It comes up from time to time and I'm wondering of it's possible to use type info when searching in visual studio, or is there a plugin that includes this? I'd like to search for the phrase "x == " or "x.ToString();" where x is of type 'Person'. The normal regex searches are strictly searching the text as opposed to the content and I figured out a long time ago that any thought I have is never the first.

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• Python mechanize to follow image links?

  - by Shark

  mechanize's Browser class is great and it's follow_link() function is great too. But what to do with this kind of links: <a href="http://example.com"><img src="…"></a> Is there any way to follow such links? The text attribute of this type of links is simply '[IMG]', so AFAIK, there is no way to differentiate such links. Any help would be appreciated.

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