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  • list box items context menu WPF

    - by Eran
    hey guys, I have list box that contains UserControl as item template the user control contains few text blocks in a grid, the thing is that I want to add context menu to my user control that will show on the list item right click but currently only right clicking the textbox inside the user control triggers the context menu appearance clicking the spaces between those textboxes triggers nothing, any idea about how can I trigger the context menu from the container list box? Thanks Eran

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  • Advice on logic circuits and serial communications

    - by Spencer Ruport
    As far as I understand the serial port so far, transferring data is done over pin 3. As shown here: There are two things that make me uncomfortable about this. The first is that it seems to imply that the two connected devices agree on a signal speed and the second is that even if they are configured to run at the same speed you run into possible synchronization issues... right? Such things can be handled I suppose but it seems like there must be a simpler method. What seems like a better approach to me would be to have one of the serial port pins send a pulse that indicates that the next bit is ready to be stored. So if we're hooking these pins up to a shift register we basically have: (some pulse pin)-clk, tx-d Is this a common practice? Is there some reason not to do this? EDIT Mike shouldn't have deleted his answer. This I2C (2 pin serial) approach seems fairly close to what I did. The serial port doesn't have a clock you're right nobugz but that's basically what I've done. See here: private void SendBytes(byte[] data) { int baudRate = 0; int byteToSend = 0; int bitToSend = 0; byte bitmask = 0; byte[] trigger = new byte[1]; trigger[0] = 0; SerialPort p; try { p = new SerialPort(cmbPorts.Text); } catch { return; } if (!int.TryParse(txtBaudRate.Text, out baudRate)) return; if (baudRate < 100) return; p.BaudRate = baudRate; for (int index = 0; index < data.Length * 8; index++) { byteToSend = (int)(index / 8); bitToSend = index - (byteToSend * 8); bitmask = (byte)System.Math.Pow(2, bitToSend); p.Open(); p.Parity = Parity.Space; p.RtsEnable = (byte)(data[byteToSend] & bitmask) > 0; s = p.BaseStream; s.WriteByte(trigger[0]); p.Close(); } } Before anyone tells me how ugly this is or how I'm destroying my transfer speeds my quick answer is I don't care about that. My point is this seems much much simpler than the method you described in your answer nobugz. And it wouldn't be as ugly if the .Net SerialPort class gave me more control over the pin signals. Are there other serial port APIs that do?

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  • Choosing suitable background / foreground colour using PHP

    - by Lizard
    I am looking to find a why to calculate a suitable background colour and a colour for the text that would go over the top, obviously I need to take into account readability and accessibility. I would need to pick the two colours from the array, the colours are stored in their hex representations. #CC9966 #996633 #FFCC99 #CCCC99 #000000 #333333 #666633 #663333 #CC9933 #FFCCCC I can use a PHP library like GD / imageMagick? Any suggestions (Please note I am using PHP)

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  • How do I store a Java KeyStore password?

    - by Anthony D
    In my web application I access a private key that is stored in a Java KeyStore. I would like to know what is the best/recommended way to store the password for the KeyStore and private key. I've considered using a properties file but that does not seem very secure for use in a production environment (storing password in a plain text file). Also, hard-coding the password in my code is not an option I'm willing to entertain. Thanks.

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  • How to create encrypted Jar file?

    - by Kartik Mistry
    I am working on project that must need to protect data (revealing code is not main problem) files. We are using Java + Netbeans. Is there any facility that will create jar in encrypted format? We are also using sqlite for database - so putting text file in encrypted format is not proper option for us too.

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  • Simple C# Tokenizer Using Regex

    - by Pete
    I'm looking to tokenize really simple strings,but struggling to get the right Regex. The strings might look like this: string1 = "{[Surname]}, some text... {[FirstName]}" string2 = "{Item}foo.{Item2}bar" And I want to extract the tokens in the curly braces (so string1 gets "{[Surname]}","{[FirstName]}" and string2 gets "{Item}" and "{Item2}") this question is quite good, but I can't get the regex right: poor mans lexer for c# Thanks for the help!

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  • How to hide specific header item in grid

    - by Vara Prasad.M
    Hi, I am using RadGrid and i am displaying the header item with months if the month data is null then i have to make invisible the entire column including the header text i am using Telerik version Grid. Please reply it fast Waiting for the reply, Thanks in Advance Vara Prasad.M

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  • No compile errors when reference added, but errors seen upon build

    - by cjs
    A solution was just converted from VS 2008 to VS 2010. My VS 2010 build is failing with the popular "The type or namespace X could not be found". When I go to the project and go to Add References and add the appropriate project dll, the class name appears in blue text as if .NET found the correct class. However, when I go to the Build menu and select "Build Solution" I get the "namespace not found error" and the class name is no longer blue. Thanks.

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  • Any Reason Why IsNumeric() Fails On A Number?

    - by Jason
    I currently have this line of code which has been working for the past 6 months: If IsNumeric(txtProductID.Text) Then ...do stuff Else Dim msg As String = "Error!" End If All of the sudden, no matter what kind of entry is put in txtProductID (including plain numbers), it fails! Is there reason for me to be going crazy over this?

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  • Multiple forms with shared fields

    - by SMiX
    How to make multiple forms with shared fields without using javascript? <input type=text name=username /> <form action="/users"> ... some fields ... </form> <form action="/admins"> ... some another fields ... </form>

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  • Xpath and innerHTML

    - by Jonathan
    What Xpath expression can I use to find all the anchor (just 'a') elements whose actual text (the innerHTML) is Logout. something like //a[@innerHTML='Logout'] Would that be correct?

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  • Is there a W3C valid way to disable autocomplete in a HTML form?

    - by matt b
    When using the xhtml1-transitional.dtd doctype, collecting a credit card number with the following HTML <input type="text" id="cardNumber" name="cardNumber" autocomplete='off'/> will flag a warning on the W3C validator: there is no attribute "autocomplete". Is there a W3C / standards way to disable browser auto-complete on sensitive fields in a form?

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  • Cannot change borderColor of TD

    - by Tadeus Prastowo
    Using JS to set the background color of a TD is fine. But, setting the border color is problematic in FF 3.0.18 although IE 6 doesn't experience this. FF is problematic in that it requires the TD element to have an attribute style initialized to border-style: solid. Without that, setting border color of a TD won't work. Is this known bug? How do I set the border color without having to set style attribute as well as the initialization value? I know another trick of setting the class attribute instead of setting the border color directly. Is this an indication that somehow TD hates having its border color set dynamically? Is this known as well? The problematic code is below (the goal is find out why setting the border color of simple truth 1 does not work while simple truth 3 works when I employ the trick described above): <html> <head> <title>Quirks FF 3.0.18</title> <style type="text/css"> table { border-collapse: collapse; } </style> <script type="text/javascript"> function changeBgColor() { document.getElementById('simple').style.backgroundColor='yellow'; document.getElementById('simple2').style.backgroundColor='yellow'; document.getElementById('simple3').style.backgroundColor='yellow'; } function quirk(id) { var x = document.getElementById(id); x.style.border = '2px solid red'; } </script> </head> <body> <input type="button" onclick="changeBgColor()" value="Change background color"/> <input type="button" onclick="quirk('simple')" value="Change border color 1"/> <input type="button" onclick="quirk('simple2')" value="Change border color 2"/> <input type="button" onclick="quirk('simple3')" value="Change border color 3"/> <table> <tr><td id="simple">Simple truth 1</td></tr> </table> <table> <tr><td><span id="simple2">Simple truth 2</span></td></tr> <table> <tr><td id="simple3" style="border-style: solid">Simple truth 3</td></tr> </table> </body> </html>

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  • Event Listener in Google Charts API

    - by DeanGrobler
    I'm busy using Google Charts in one of my projects to display data in a table. Everything is working great. Except that I need to see what line a user selected once they click a button. This would obviously be done with Javascript, but I've been struggling for days now to no avail. Below I've pasted code for a simple example of the table, and the Javascript function that I want to use (that doesn't work). <html> <head> <script type='text/javascript' src='https://www.google.com/jsapi'></script> <script type='text/javascript'> google.load('visualization', '1', {packages:['table']}); google.setOnLoadCallback(drawTable); var table = ""; function drawTable() { var data = new google.visualization.DataTable(); data.addColumn('string', 'Name'); data.addColumn('number', 'Salary'); data.addColumn('boolean', 'Full Time Employee'); data.addRows(4); data.setCell(0, 0, 'Mike'); data.setCell(0, 1, 10000, '$10,000'); data.setCell(0, 2, true); data.setCell(1, 0, 'Jim'); data.setCell(1, 1, 8000, '$8,000'); data.setCell(1, 2, false); data.setCell(2, 0, 'Alice'); data.setCell(2, 1, 12500, '$12,500'); data.setCell(2, 2, true); data.setCell(3, 0, 'Bob'); data.setCell(3, 1, 7000, '$7,000'); data.setCell(3, 2, true); table = new google.visualization.Table(document.getElementById('table_div')); table.draw(data, {showRowNumber: true}); } function selectionHandler() { selectedData = table.getSelection(); row = selectedData[0].row; item = table.getValue(row,0); alert("You selected :" + item); } </script> </head> <body> <div id='table_div'></div> <input type="button" value="Select" onClick="selectionHandler()"> </body> </html> Thanks in advance for anyone taking the time to look at this. I've honestly tried my best with this, hope someone out there can help me out a bit.

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  • How to parse JSON in Java

    - by Maxood
    I have the following JSON text that i need to parse to get pageName, pagePic, post_id, etc. What is the required code? {       pageInfo: {            pageName: abc            pagePic: http://profile.ak.fbcdn.net/object2/367/65/q160119538822_4127.jpg       }       posts: [            {                 post_id: 160119538822_302076968822                 actor_id: 1183856639                 picOfPersonWhoPosted: http://profile.ak.fbcdn.net/hprofile-ak-sf2p/hs302.ash1/23104_1183856639_4894_q.jpg                 nameOfPersonWhoPosted: Andrea Raquel                 message: Sounds cool. Can't wait to see it!                 likesCount: 2                 comments: [                 ]                 timeOfPost: 1266036226            }

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  • I'm cloning a table row that contains an input that's being set to jQuery TimeEntry that errors when

    - by Kendall Crouch
    I'm adding a TimeEntry to a page where the user can add a row (clone) to a table. The row that is cloned is hidden (display:none). The user clicks a button and javascript is run to clone the row which renames all of the fields and then appends the new row to the table. <tr id="blankRowShift"> <td> <input type="text" id="timeStart" name="timeStart" /> </td> <td> <input type="text" id="timeEnd" name="timeEnd" /> </td> <td> <select id="userLevel"> <option value="0">Please Select One</option> <option value="2">Admin</option> <option value="1">Employee</option> <option value="3">Scheduler</option> </select> </td> </tr> var r = $("#tbl #blankRowShift").clone().removeAttr("id"); $("#timeStart", r).attr("name", "timeStart" + nn).attr("id", "timeStart" + nn); $("#timeEnd", r).attr("name", "timeEnd" + nn).attr("id", "timeEnd" + nn); $("#userLevel option:nth(0)", r).attr("selected", "selected"); $("#userLevel", r).attr("name", "userLevel" + nn).attr("id", "userLevel" + nn).attr("value", 0); $("#tbl").append(r); $("#timeStart" + nn).timeEntry({ show24Hours: false, showSeconds: false, timeSteps: [1, 15, 0], spinnerImage: 'includes/js/spinnerOrange.png', beforeShow: customRangeStart }); $("#timeStart" + nn).timeEntry('setTime', new Date()); $("#timeEnd" + nn).timeEntry({ show24Hours: false, showSeconds: false, timeSteps: [1, 15, 0], spinnerImage: 'includes/js/spinnerOrange.png', beforeShow: customRangeEnd }); $("#timeEnd" + nn).timeEntry('setTime', new Date()); The spinner works just fine and the times can be changed. Then when submitting the form, I validate the time. The getTime errors in jQuery with the message "elem is undefined var id = elem[ expando ];". I've placed the statement 'console.dir(input)' in the _getTimeTimeEntry: function and it returns nothing for the cloned fields. el = $("#timeStart" + i); if (el.timeEntry("getTime") == null) {

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  • Visual Studio Font Size (Windows 7)

    - by Jay
    Hi, I've lately installed Windows 7. After opening my old C# project in visual studio i noticed that my buttons are too small (button.text didn't fit in). Why the hell did MS increase the standard font size (well font size is still set to 8, but it's somehow bigger now)? Can I fix it somehow, without correcting all my buttons etc. manually? Kind regards, Jay

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  • WPF: change binding properties for multiple controls

    - by Catalin DICU
    I'd like that all the Text bindings for the TextBoxes in my UserControl to have UpdateSourceTrigger=PropertyChanged, and ValidatesOnDataErrors=True How to do it ? I can think of a solution: use another class for bindings (a class inheriting Binding) but maybe there is another solution, maybe using a style or template ?

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  • Add rss xmlns namespace definition to a php simplexml document?

    - by talkingnews
    I'm trying to create an itunes-valid podcast feed using php5's simplexml: <?php $xml_string = <<<XML <?xml version="1.0" encoding="UTF-8"?> <channel> </channel> XML; $xml_generator = new SimpleXMLElement($xml_string); $tnsoundfile = $xml_generator->addChild('title', 'Main Title'); $tnsoundfile->addChild('itunes:author', "Author", ' '); $tnsoundfile->addChild('category', 'Audio Podcasts'); $tnsoundfile = $xml_generator->addChild('item'); $tnsoundfile->addChild('title', 'The track title'); $enclosure = $tnsoundfile->addChild('enclosure'); $enclosure->addAttribute('url', 'http://test.com'); $enclosure->addAttribute('length', 'filelength'); $enclosure->addAttribute('type', 'audio/mpeg'); $tnsoundfile->addChild('itunes:author', "Author", ' '); header("Content-Type: text/xml"); echo $xml_generator->asXML(); ?> It doesn't validate, because I've got to put the line: <rss xmlns:itunes="http://www.itunes.com/dtds/podcast-1.0.dtd" version="2.0"> as per http://www.apple.com/itunes/podcasts/specs.html. So the output SHOULD be: <?xml version="1.0" encoding="UTF-8"?> <rss xmlns:itunes="http://www.itunes.com/dtds/podcast-1.0.dtd" version="2.0"> <channel> etc. I've been over and over the manual and forums, just can't get it right. If I put, near the footer: header("Content-Type: text/xml"); echo '<rss xmlns:itunes="http://www.itunes.com/dtds/podcast-1.0.dtd" version="2.0">'; echo $xml_generator->asXML(); ?> Then it sort of looks right in firefox and it doesn't complain about undefined namespaces anymore, but feedvalidator complains that line 1, column 77: XML parsing error: :1:77: xml declaration not at start of external entity [help] because the document now starts: <rss xmlns:itunes="http://www.itunes.com/dtds/podcast-1.0.dtd" version="2.0"><?xml version="1.0" encoding="UTF-8"?> and not <?xml version="1.0" encoding="UTF-8"?><rss xmlns:itunes="http://www.itunes.com/dtds/podcast-1.0.dtd" version="2.0"> Thank you in advance.

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