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  • Getting TypeConverter error that makes no sense

    - by Greg McGuffey
    I have a TypeConverter for a TopMostNode class. It extends ExpandableObjectConverter. The TopMostNode has two properties. Setting those in the property grid results in correctly serialized code to the designer. However, if I type in text for the property, I get a "Property value is not valid" error and the details say: Object of type 'TopMostNode' cannot be converted to type 'TopMostNode'. I'm baffled. When I step through the type converter ConvertFrom code, it runs as expected. I don't even know were to start looking for an issue like this.

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  • clickonce - what is a good open source alternative to clickonce? (DDay.Update)?

    - by Greg
    Hi, What is a good open source alternative to clickonce? One that is most popular and under active development I guess? DDay.Update perhaps? Is this the main one? thanks PS. I've come up with a few from searching, but would appreciate any feedback from people how have reviewed these and have an idea of which is most popular/worth looking into first. .NET Application Updater Component - http://windowsclient.net/articles/appupdater.aspx nlaunch - http://code.google.com/p/nlaunch/ dotnetautoupdate http://code.google.com/p/dotnetautoupdate/

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  • WPF Hide DataGridColumn via a binding

    - by Greg R
    For some reason I can't hide WPF Toolkit's DataGridColumn. I am trying to do the following: <dg:DataGridTemplateColumn Header="Item Description" Visibility="{Binding IsReadOnly}"> <dg:DataGridTemplateColumn.CellTemplate> <DataTemplate> <TextBox Text="{Binding Path=ItemDescription}" /> </DataTemplate> </dg:DataGridTemplateColumn.CellTemplate> This doesn't work, since it's looking for a IsReadOnly property on the ItemSource (not a property of the current class). If add this as a property of the ItemSource class that implements INoifyPropertyChanged, it still doesn't hide the column. Is there a way around this? I want the column to hid when a button click changes IsReadOnly property. Assume IsReadOnly returns a Visibility value and is a dependency property I am completely stuck, I would really appreciate the help! Thanks a lot!

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  • .NET HttpListener - no traffic when listening to "https://*.8080" when browser proxy is set???

    - by Greg
    Hi, Background - I can get HttpListener working fine for HTTP traffic. I'm having trouble with HTTPS traffic however. QUESTION: How can I change the code below so that a browser request to a "https" URL will actually be picked up by my HttpListener? Notes - At the moment with firefox's proxy settings set to "localhost:8080", when I listen to traffic on port 8080 ("https://*:8080/"), and I enter a HTTPS url in firefox, I am getting no traffic being picked up? (when I listen to just http and enter normal http url's it works fine) _httpListener = new HttpListener(); _httpListener.Prefixes.Add("https://*:8080/"); _httpListener.Start(); thanks

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  • sqlite - any improvements for this attach code (running multiple sql commands transactionally in sql

    - by Greg
    Hi, Is this code solid? I've tried to use "using" etc. Basically a method to pass as sequenced list of SQL commands to be run against a Sqlite database. I assume it is true that in sqlite by default all commands run in a single connection are handled transactionally? Is this true? i.e. I should not have to (and haven't got in the code at the moment) a BeginTransaction, or CommitTransaction. It's using http://sqlite.phxsoftware.com/ as the sqlite ADO.net database provider. private int ExecuteNonQueryTransactionally(List<string> sqlList) { int totalRowsUpdated = 0; using (var conn = new SQLiteConnection(_connectionString)) { // Open connection (one connection so should be transactional - confirm) conn.Open(); // Apply each SQL statement passed in to sqlList foreach (string s in sqlList) { using (var cmd = new SQLiteCommand(conn)) { cmd.CommandText = s; totalRowsUpdated = totalRowsUpdated + cmd.ExecuteNonQuery(); } } } return totalRowsUpdated; }

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  • How does this ajax call persist DOM changes in the browser cache?

    - by Greg
    For the purpose of the question I need to create a simple fictitious scenario. I have the following trivial page with one link, call it page A: <a class="red-anchor" onclick="change_color(event);" href="http://mysite.com/b/">B</a> With the associated Javascript function: function change_color(e) { var event = e || window.event; var link = event.target; link.className = "green-anchor"; } And I have the appropriate CSS to make the anchor red or green based on the classname. This is working. That is, when I click the anchor it changes color from red to green, which is briefly visible before the browser loads page B. But if I then use the BACK button to return to page A I get different behavior in different browsers. In Safari, the anchor is still green (desired behavior) In Firefox it reverts to red I imagine that Safari is somehow updating its cached version of the page, whereas Firefox isn't. So my first question is: is there any way to get FF to update the cached page, or is something else happening here? Secondly: I have a different implementation where I use an ajax call. In this I set the class of the anchor using a session variable, something like... <a class="<?php echo $_SESSION["color"]; ?>" ...[snip]... >B</a> And the javascript function makes an additional ajax call that changes the "color" session variable. In this case both Safari and Firefox work as expected. When going back from B to A the color is still green. But I can't for the life of me figure out why it should be different to the non-ajax case. I have tried many different permutations and for it to work on FF the "color" session variable MUST change (i.e. the ajax call itself is not somehow reloading the cache). But on coming BACK, the page is being reloaded from the cache (verified in Firebug), so how is the page even accessing this session variable if it isn't reprocessing the page and running that fragment of php in the anchor? I figure there must be something fundamental here that I am not understanding. Any insight would be much appreciated.

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  • jQuery selector issue finding image with usemap attribute

    - by Greg K
    I have an image map in my page: <div id="books"> <img src="images/books.png" width="330" height="298" border="0" \ usemap="#map_books" /> <map name="map_books" id="map_books" alt="books"> <area shape="poly" coords="17,73,81,288,210,248,254,264, ..." \ href="/about" alt="books" /> </map> </div> I have a function that tries to find the image in the document using this map: function(elemId) { // elemId = "#map_books" if ($(elemId).attr("tagName") == "MAP") { // find image using this map var selector = "img [usemap=\\" + elemId + "]"; var img = $(selector); if (img.length == 0) { console.log("Could not find image using " + selector); } } It fails to find the image. Could not find image using img [usemap=\#map_books] I've escaped the elemId because it starts with a hash and tried variations of selectors. $("img [usemap$=" + elemId.substring(1) + "]") $("img").find("[usemap=\\" + elemId + "]") Neither find the image. Any ideas?

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  • How do you comment on an RFC?

    - by Greg Beech
    I have some comments about the OAuth draft RFC (specifically about some errors it contains), but I'm not sure what the accepted way is to make them. There's an email address at the bottom, so do I simply send mail there with the comments, or is there some IETF tool I should know about for tracking comments/issues?

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  • .net question - where are the DefaultCredentials stored/accessed from for a WinForms v3.5 app?

    - by Greg
    Hi, Where are the DefaultCredentials stored/accessed from for a WinForms v3.5 app? That is if I am using the settings for defaultProxy for my Winforms v3.5 application, and set a proxy server address here, exactly where does/can the username/password come from? Or in other words where does the framework source the "default credentials" for a winforms application running on the client PC? <defaultProxy enabled="true|false" useDefaultCredentials="true|false" <bypasslist> … </bypasslist> <proxy> … </proxy> <module> … </module> /> Background - apparently ClickOnce can use this for a client side application, however I'm trying to work out where click once would get this defaultCredential from, for a user who is running the clickonce install for my winforms application.

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  • non-static variable cannot be referenced from a static context (java)

    - by Greg
    I ask that you ignore all logic.. i was taught poorly at first and so i still dont understand everything about static crap and its killing me. My error is with every single variable that i declare then try to use later inside my methods... i get the non-static variable cannot~~ error I can simply put all the rough coding of my methods inside my cases, and it works but then i cannot use recursion... What i really need is someone to help on the syntax and point me on the right direction of how to have my methods recognize my variables at the top... like compareCount etc thanks public class MyProgram7 { public static void main (String[]args) throws IOException{ Scanner scan = new Scanner(System.in); int compareCount = 0; int low = 0; int high = 0; int mid = 0; int key = 0; Scanner temp; int[]list; String menu, outputString; int option = 1; boolean found = false; // Prompt the user to select an option menu = "\n\t1 Reads file" + "\n\t2 Finds a specific number in the list" + "\n\t3 Prints how many comparisons were needed" + "\n\t0 Quit\n\n\n"; System.out.println(menu); System.out.print("\tEnter your selection: "); option = scan.nextInt(); // Keep reading data until the user enters 0 while (option != 0) { switch (option) { case 1: readFile(); break; case 2: findKey(list,low,high,key); break; case 3: printCount(); break; default: outputString = "\nInvalid Selection\n"; System.out.println(outputString); break; }//end of switch System.out.println(menu); System.out.print("\tEnter your selection: "); option = scan.nextInt(); }//end of while }//end of main public static void readFile() { int i = 0; temp = new Scanner(new File("CS1302_Data7_2010.txt")); while(temp.hasNext()) { list[i]= temp.nextInt(); i++; }//end of while temp.close(); System.out.println("File Found..."); }//end of readFile() public static void findKey() { while(found!=true) { while(key < 100 || key > 999) { System.out.println("Please enter the number you would like to search for? ie 350: "); key = scan.nextInt(); }//end of inside while //base if (low <= high) { mid = ((low+high)/2); if (key == list[mid]) { found = true; compareCount++; }//end of inside if }//end of outside if else if (key < list[mid]) { compareCount++; high = mid-1; findKey(list,low,high,key); }//end of else if else { compareCount++; low = mid+1; findKey(list,low,high,key); }//end of else }//end of outside while }//end of findKey() public static void printCount() { System.out.println("Total number of comparisons is: " + compareCount); }//end of printCount }//end of class

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  • jquery.ui sortable using a table and item:tr , placeholder difficulties

    - by greg
    Hi I would really like to give some sortable goodness to the myriad old tables I have created. A little work has a proof of concept behaving ok. My one sticking point is that the placeholder does not work at all in IE 7 when using item:TR . It works OK in FF. I can make an perform correctly. It seems to be specific to tables and Any ideas, I have been running through forums, not seeing a lot of people using sortable with tables. <style type="text/css"> .dndPlaceHolder { background-color:Red ; color:Red; height: 20px; line-height:30px; border: solid 2px black; } .dndItem { background-color: #c0c0c0; border:solid 1px black; padding:5px; } </style> <script type="text/javascript" > $(function() { $("#myTable").sortable( { placeholder:'dndPlaceHolder', distance:15, items:'tr', forcePlaceholderSize:true, change : dndChange, update : dndUpdate } ); $("#myTable").disableSelection(); $("#myList").sortable( { placeholder:'dndPlaceHolder', distance:15, items:'li', forcePlaceholderSize:true, change : dndChange, update : dndUpdate } ); $("#myList").disableSelection(); }); function dndChange(event,ui){ } function dndUpdate(event,ui){ var msg = ''; } </script> <table id='myTable' > <tr class='dndItem' id='1'> <td>0 Active - Active</td> </tr> <tr class='dndItem' id='2'> <td>1 Closed - Closed</td> </tr> <tr class='dndItem' id='3'> <td>2 OnHold - On Hold</td> </tr> <tr class='dndItem' id='4'> <td>3 Pending - Pending</td> </tr> </table> <BR> <UL id='myList' > <li class='dndItem' id='1'>0 Active - Active</li> <li class='dndItem' id='2'>1 Closed - Closed</li> <li class='dndItem' id='3'>2 OnHold - On Hold</li> <li class='dndItem' id='4'>3 Pending - Pending</li> </ul>

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  • dz's Open Flash Chart 2 disabling animation problem (Rails)

    - by greg
    How to disable the startup animation in OFC2? Since I started using the dz build, the on-show animation is on by default, which sucks quite a lot. Neither of these work: graph.animate=false graph.on_show=false Also, dz's build implements the tooltip hover support poorly - the tooltip continues to hover even when the cursor is on another flash object. Has anyone overcome these problems?

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  • does Entity Framework have a caching mechanism like DataSet/DataTables have?

    - by Greg
    Hi, does Entity Framework have a caching mechanism like DataSet/DataTables have? In other words if you start using EF is it really just a way to easily get data in/out of the database without providing an additional caching layer like DataSet/DataTables did where you have an in-memory representation (on-line/off-line) and which at some point you could say to "persist all changes to database"

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  • Why does a user have to enter "Profile" data to enter data into other tables?

    - by Greg McNulty
    EDIT It appears the user has to enter some data for his profile, otherwise I get this error below. I guess if there is no profile data, the user can not continue to enter data in other tables by default? I do not want to make entering user profile data a requirement to use the rest of the sites functionality, how can I get around this? Currently I have been testing everything with the same user and everything has been working fine. However, when I created a new user for the very first time and tried to enter data into my custom table, I get the following error. The INSERT statement conflicted with the FOREIGN KEY constraint "FK_UserData_aspnet_Profile". The conflict occurred in database "C:\ISTATE\APP_DATA\ASPNETDB.MDF", table "dbo.aspnet_Profile", column 'UserId'. The statement has been terminated. Not sure why I am getting this error. I have the user controls set up in ASP.NET 3.5 however all I am using is my own table or at least that I am aware of. I have a custom UserData table that includes the columns: id, UserProfileID, CL, LL, SL, DateTime (id is the auto incremented int) The intent is that all users will add their data in this table and as I mentioned above it has been working fine for my original first user I created. However, when i created a new user I am getting this problem. Here is the code that updates the database. protected void Button1_Click(object sender, EventArgs e) { //connect to database MySqlConnection database = new MySqlConnection(); database.CreateConn(); //create command object Command = new SqlCommand(queryString, database.Connection); //add parameters. used to prevent sql injection Command.Parameters.Add("@UID", SqlDbType.UniqueIdentifier); Command.Parameters["@UID"].Value = Membership.GetUser().ProviderUserKey; Command.Parameters.Add("@CL", SqlDbType.Int); Command.Parameters["@CL"].Value = InCL.Text; Command.Parameters.Add("@LL", SqlDbType.Int); Command.Parameters["@LL"].Value = InLL.Text; Command.Parameters.Add("@SL", SqlDbType.Int); Command.Parameters["@SL"].Value = InSL.Text; Command.ExecuteNonQuery(); } Source Error: Line 84: Command.ExecuteNonQuery();

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  • ComboBox wpf not item not being selected

    - by Greg R
    I am trying to bind a combo box to a list of objects, and it works great, besides the selected value, am I missing somethign? <ComboBox ItemsSource="{Binding OrderInfoVm.AllCountries}" SelectedValuePath="country_code" DisplayMemberPath="country_name" SelectedValue="{Binding OrderInfoVm.BillingCountry}" /> Basically I want to bind value to country codes and set the selected value to the country code bound to OrderInfoVm.BillingCountry (which implements INotifyPropertyChanged) Initially when the control loads selected value is empty, but on click BillingCountry is populated. Selected value does not seem to change. How can I remedy that?

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  • .NET - Is it possible to proxy a HTTPS request using HttpListener & HttpWebRequest? (or is it not p

    - by Greg
    Hi, Question - Is it possible to proxy a HTTPS request using HttpListener & HttpWebRequest? (or is it not possbile due to the encryption?) I have got a .NET proxy working by using HttpListener & HttpWebRequest using the approach here. I'm trying to extend this at the moment to listen for HTTPS too (refer this question) however I'm wondering if I'm trying to tackle something that is not possible...That is if this code works by listening for the HTTPS request (using HttpListener) and then copying headers & content across to a new HttpWebRequest, is this flawed as it may not be able to decrypt the request to get the content? But then normal proxy servers obviously can proxy HTTPS, so I guess perhaps it will work because it will just copy across the encrypted content?

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  • Problem with multiple event handling in JQuery

    - by Greg
    Hi everyone, I have a strange jquery problem with multiple event handlers. What I'm trying to achieve is this: User selects some text on the page If the selection is not empty - show a context menu If user clicks somewhere else - the context menu should disappear I'm having troubles with the above i.e. sometimes the context menu appears correctly, sometimes it appears and disappears straight after user makes a selection. Please help. See the relevant parts of my code below. Also when user selects a paragraph or a word by double clicking - context menu appears and quickly disappears again. var ContextMenu = { ... show: function(e) { var z = this; if (!this.shown) { if (this.contextMenu) { this.contextMenu.css({ left: e.pageX, top: e.pageY }).slideDown('fast'); this.shown = true; } var hideHandler = function() { z.hide(this); }; $(document.body).bind("click", hideHandler); } }, hide: function(hideHandler) { if (this.contextMenu && this.shown) { this.contextMenu.slideUp('fast'); this.shown = false; $(document.body).unbind("click", hideHandler); } } }; // Context menu display logic $(document.body).bind("mousedown mouseup", function(e) { if ((window.getSelection().toString() != "") && (!ContextMenu.shown)) { ContextMenu.show(e); } });

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  • Silverlight with Visual Studio 2010 Isolated Storage Error

    - by Greg Finzer
    I am getting an error when trying to access isolated storage when running a Silverlight unit test project in VS2010. Test method Silverlight_Binary_Serialization_Tests.SerializationTests.SerializeBytesTest threw exception: System.IO.IsolatedStorage.IsolatedStorageException: Unable to determine application identity of the caller. Here is the line it is failing on: private readonly IsolatedStorageFile _store = IsolatedStorageFile.GetUserStoreForApplication();

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  • UIImagePickerController image editing not working

    - by Greg Reichow
    I am having a problem with implementing UIImagePickerController. When the controller loads, it displays modally, and allows the user to select the image. Good so far. Yet, then when it moves to the editing phase, it often displays somewhat corrupted view (the image cropping box is halfway off the top of the screen) and their is no image. It does not crash, but all UI interaction is blocked. The strange part is that this only happens when I compile with Release settings. Under debug compile settings, the image editing works fine! I have tried checking for memory warnings during this time, but none are showing up. Here is the code calling the image picker controller for reference. When I use the camera (the first method), it always works fine. It is just when selecting images from the Library (called from the second method below) does it fail as described above. And again, only on release build, and with various different types of images. - (IBAction) showCameraController:(id)sender { self.imagePicker =[[UIImagePickerController alloc] init]; self.imagePicker.sourceType=UIImagePickerControllerSourceTypeCamera; self.imagePicker.delegate=self; self.imagePicker.allowsEditing=YES; [self presentModalViewController:self.imagePicker animated:YES]; } - (IBAction) showPictureAlbumController:(id)sender { self.imagePicker =[[UIImagePickerController alloc] init]; self.imagePicker.sourceType=UIImagePickerControllerSourceTypePhotoLibrary; self.imagePicker.delegate=self; self.imagePicker.allowsEditing=YES; [self presentModalViewController:self.imagePicker animated:YES]; } The delegate methods are properly implemented, yet, during the problem I am describing, the controller is not yet calling those methods. It is failing when displaying the editing screen before the user is able to select cancel or save. It is just locking up with no crash. Please help!

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  • Any hosted versions of jQuery that have the 'Access-Control-Allow-Origin: *' header set?

    - by Greg Bray
    I have been working with jQuery recently and ran into a problem where I couldn't include it in a userscript because xmlhttpRequest uses the same origin policy. After further testing I found that most browsers also support the Cross-Origin Resource Sharing access control defined by W3C as a workaround for issues with same origin policy. I tested this by hosting the jQuery script on a local web server that included the Access-Control-Allow-Origin: * http header, which allowed the script to be downloaded using xmlhttpRequest so that it could be included in my userscript. I'd like to use a hosted version of jQuery when releasing the script, but so far testing with tools like http://www.seoconsultants.com/tools/headers I have not found any sites that allow cross-origin access to the jQuery script. Here is the list I have tested so far: http://www.asp.net/ajaxlibrary/CDN.ashx http://code.google.com/apis/ajaxlibs/documentation/index.html#jquery http://docs.jquery.com/Downloading_jQuery#CDN_Hosted_jQuery Are there any other hosted versions of jQuery that do allow cross origin access?

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  • How do you traverse and store XML in Blackberry Java app?

    - by Greg
    I'm having a problem accessing the contents of an XML document. My goal is this: Take an XML source and parse it into a fair equivalent of an associative array, then store it as a persistable object. the xml is pretty simple: <root> <element> <category_id>1</category_id> <name>Cars</name> </element> <element> <category_id>2</category_id> <name>Boats</name> </element> </root> Basic java class below. I'm pretty much just calling save(xml) after http response above. Yes, the xml is properly formatted. import java.io.IOException; import java.util.Hashtable; import org.w3c.dom.Document; import org.w3c.dom.Node; import org.w3c.dom.NodeList; import java.util.Vector; import net.rim.device.api.system.PersistentObject; import net.rim.device.api.system.PersistentStore; import net.rim.device.api.xml.parsers.DocumentBuilder; import net.rim.device.api.xml.parsers.DocumentBuilderFactory; public class database{ private static PersistentObject storeVenue; static final long key = 0x2ba5f8081f7ef332L; public Hashtable hashtable; public Vector venue_list; String _node,_element; public database() { storeVenue = PersistentStore.getPersistentObject(key); } public void save(Document xml) { venue_list = new Vector(); storeVenue.setContents(venue_list); Hashtable categories = new Hashtable(); try{ DocumentBuilderFactory docBuilderFactory = DocumentBuilderFactory. newInstance(); DocumentBuilder docBuilder = docBuilderFactory.newDocumentBuilder(); docBuilder.isValidating(); xml.getDocumentElement ().normalize (); NodeList list=xml.getElementsByTagName("*"); _node=new String(); _element = new String(); for (int i=0;i<list.getLength();i++){ Node value=list.item(i).getChildNodes().item(0); _node=list.item(i).getNodeName(); _element=value.getNodeValue(); categories.put(_element, _node); } } catch (Exception e){ System.out.println(e.toString()); } venue_list.addElement(categories); storeVenue.commit(); } The code above is the work in progress, and is most likely heavily flawed. However, I have been at this for days now. I can never seem to get all child nodes, or the name / value pair. When I print out the vector as a string, I usually end up with results like this: [{ = root, = element}] and that's it. No "category_id", no "name" Ideally, I would end up with something like [{1 = cars, 2 = boats}] Any help is appreciated. Thanks

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  • Detect file creation date on iPhone OS?

    - by Greg Maletic
    I was planning on writing some code whose logic was based upon testing the creation date of a particular file in my app's Documents folder. Turns out, when I call -[NSFileManager attributesOfItemAtPath:error:], NSFileCreationDate isn't one of the provided attributes. Is there no way to discover a file's creation date? Thanks.

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  • MS SQL Bridge Table Constraints

    - by greg
    Greetings - I have a table of Articles and a table of Categories. An Article can be used in many Categories, so I have created a table of ArticleCategories like this: BridgeID int (PK) ArticleID int CategoryID int Now, I want to create constraints/relationships such that the ArticleID-CategoryID combinations are unique AND that the IDs must exist in the respective primary key tables (Articles and Categories). I have tried using both VS2008 Server Explorer and Enterprise Manager (SQL-2005) to create the FK relationships, but the results always prevent Duplicate ArticleIDs in the bridge table, even though the CategoryID is different. I am pretty sure I am doing something obviously wrong, but I appear to have a mental block at this point. Can anyone tell me please how should this be done? Greaty appreciated!

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  • How do I export a PFX Code Signing Key to SPC and PVK under Windows 7?

    - by Greg Finzer
    I have a code signing key in PFX format that I need to export into SPC and PVK files. I tried to install the OpenSSL from Shining light but the install fails under Windows 7. http://www.shininglightpro.com/products/Win32OpenSSL.html Here are the instructions I am using from Comodo as a basis: https://support.comodo.com/index.php?_m=knowledgebase&_a=viewarticle&kbarticleid=1089 Anyone know of an alternate way to do this?

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