Search Results

Search found 41123 results on 1645 pages for 'type casting'.

facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print

Page 495/1645 | < Previous Page | 491 492 493 494 495 496 497 498 499 500 501 502  | Next Page >

  • How can I prevent MEF from throwing an exception when an Export is not found?

    - by Kilhoffer
    I have a class with an IList<T> property decorated with the [ImportMany(allowRecomposition = true)] attribute. There are some conditions in which the application might not find any available Exports of the requested type. Right now, it's throwing a CompositionException if no Exports of the requested type are found. I dislike application flow being determined by thrown exceptions, so I would rather not catch and react in this case. Rather, I just want program execution to continue. Is there a flag or something I can set to make this Import optional? I know for single import properties, you can do this: [Import(AllowDefault = true)] but 'AllowDefault' is not an option on the ImportMany attribute.

    Read the article

  • Why can't set cast an object from Excel interop?

    - by AngryHacker
    Trying to get a reference to the worksheets (using Excel interop): Excel.Application xl = new Excel.ApplicationClass(); Excel.Workbooks xlWorkBooks = xl.Workbooks; Excel.Workbook xlWorkBook = xlWorkBooks.Open(fileName, 0, false, 5, "", "", true, Excel.XlPlatform.xlWindows, "\t", false, false, 0, true, 1, 0); Excel.Worksheets xlWorkSheets = (Excel.Worksheets) xlWorkBook.Worksheets; // crashes The error is that it cannot cast it: Unable to cast COM object of type 'System.__ComObject' to interface type 'Microsoft.Office.Interop.Excel.Worksheets'. This operation failed because the QueryInterface call on the COM component for the interface with IID '{000208B1-0000-0000-C000-000000000046}' failed due to the following error: No such interface supported (Exception from HRESULT: 0x80004002 (E_NOINTERFACE)). Is my cast incorrect?

    Read the article

  • Need help with displaying the message correctly in the pole display

    - by SA
    Hi, I am using an HP RS232 pole display with the following setting: Char type: USA/Europe (default) Command mode: EPSON (default) Baud rate: 9600, n , 8, 1 (default?) Passthru None (Default) Here's the code using System.IO.Ports; private SerialPort port; port = new SerialPort("COM2", 9600, Parity.None, 8, StopBits.One); port.Handshake = Handshake.None; Port.WriteLine("Welocome to something something"); It has 2 lines consisting of 20 characters each with a total of 40 characters. I have no control how and where the characters get displayed. I have set it to accept ASCII char set and so I am able to type as is visble in the Writeline message

    Read the article

  • [Iphone] - Problem in saving file using NSCoding

    - by Matte Gary
    Hi everybody, I've a problem with Iphone programming... I've a NSMutableArray containing object of type "MyClass". MyClass has some parameters, like NSNumber and NSString. I've followed the Apple Tutorial about coding and decoding object using NSCoding, but when I try to decode the file I've stored, the NSMutableArray contain object of type "MyClass", but with wrong parameters. I think i've done all I've to do (including protocol, including methods like initwithencode etc), but it's still not working... Any suggestions? Thanks a lot! And sorry for my English XD

    Read the article

  • PHP - what is the proper way to do inline HTML variable output?

    - by edmicman
    I just moved from an Ubuntu PHP workstation dev environment back to Windows and am using xampp. I have a bit of code, like so: <input type="text" name="txtEmail" value="<?=$emailaddress;?>"/> that I swear worked to display the variable in the textbox when I was developing before. But when I loaded the page on Windows/xampp it just put that text between the quotes in the textbox. Instead, I ended up changing it to something like: <input type="text" name="txtFirstName" value="<?php echo($firstname);?>" /> The latter makes sense, but I guess I thought there was a shorthand or something, and I must be going crazy because I'm sure the first way was working on a difference environment. So what's the best way to do this?

    Read the article

  • My FORM problem issues

    - by Azzyh
    So i have this in my form: <textarea onfocus="javascript:clearContents(this);" rows="5" cols="40" id="comment" name="comment">Skriv hvorfor du vælger at stemme ja/nej. Skal indeholde detaljer, kritik/råd. Klik for at skrive</textarea><br /> Ja: <input type="checkbox" value="Y" id="SCvote" name="SCvote"> eller Nej: <input type="checkbox" value="N" name="SCvote"> Now onfocus (when you click on the box) it clears the text "Skriv hvorfor...", but if you dont write anything and still submit it, my php code thinks it contains something and inserts that text "Skriv hvorfor...". And another issue is the checkboxes. If i dont pick anything, it inserts "Y", even if i pick the other "N" it does "Y", and i dont want it to be possible that you can check both of them. how do i do?

    Read the article

  • How do I find hash value of a 3D vector ?

    - by brainydexter
    I am trying to perform broad-phase collision detection with a fixed-grid size approach. Thus, for each entity's position: (x,y,z) (each of type float), I need to find which cell does the entity lie in. I then intend to store all the cells in a hash-table and then iterate through to report (if any) collisions. So, here is what I am doing: Grid-cell's position: (int type) (Gx, Gy, Gz) = (x / M, y / M, z / M) where M is the size of the grid. Once, I have a cell, I'd like to add it to a hash-table with its key being a unique hash based on (Gx, Gy, Gz) and the value being the cell itself. Now, I cannot think of a good hash function and I need some help with that. Can someone please suggest me a good hash function? Thanks

    Read the article

  • Rails Unit Testing with MyISAM Tables

    - by tadman
    I've got an application that requires the use of MyISAM on a few tables, but the rest are the traditional InnoDB type. The application itself is not concerned with transactions where it applies to these records, but performance is a concern. The Rails testing environment assumes the engine used is transactional, though, so when the test database is generated from the schema.rb it is imported with the same engine. Is it possible to over-ride this behaviour in a simple manner? I've resorted to an awful hack to ensure the tables are the correct type by appending this to test_helper.rb: (ActiveRecord::Base.connection.select_values("SHOW TABLES") - %w[ schema_info ]).each do |table_name| ActiveRecord::Base.connection.execute("ALTER TABLE `#{table_name}` ENGINE=InnoDB") end Is there a better way to make a MyISAM-backed model be testable?

    Read the article

  • Respect regular onsubmit handlers from jQuery.submit

    - by orip
    I want a jQuery form submit handler to respect any previous submit handlers, including ones added with onsubmit. I'm trying to detect the previous handler's return value but can't seem to do it: <form><input type="submit" /></form> <script type="text/javascript"> $('form')[0].onsubmit = function() { return false; }; // called first $('form').submit(function(e) { console.log(e.result); // undefined console.log(e.isDefaultPrevented()); // false console.log(e.isPropagationStopped()); // false console.log(e.isImmediatePropagationStopped()); // false }); </script> Is there a way to do this?

    Read the article

  • What is the significance of ProjectTypeGuids tag in the visual studio project file

    - by sudarsanyes
    What is the significance of the ProjectTypeGuids tag in a visual studio project?? When I created a WPF application, i am seeing two guids in here. {60dc8134-eba5-43b8-bcc9-bb4bc16c2548};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC} Does these represent WPF and Windows type of applications? If I create my own project type (.myproj) that has .xaml and .cs files, what should I fill in this ProjectTypeGuids tags? Should I also need to fill the ProjectType tag? It would also be better if someone differentiate the ProjectType and ProjectTypeGuids tags. P.S. I am using Visual Studio 2010 RC currently Thanks

    Read the article

  • Replace click() with document.ready() in jquery....

    - by bala3569
    I downloaded jquery effects example and all effects are appearing only onclick but i want it to be executed on document.ready() and continue... <script type="text/javascript"> var ImgIdx = 2;//To mark which image will be select next function PreloadImg(){ $.ImagePreload("images/im2.jpg"); $.ImagePreload("images/im3.jpg"); $.ImagePreload("images/im4.jpg"); $.ImagePreload("images/im5.jpg"); } $(document).ready(function(){ PreloadImg(); $(".SlashEff ul li").click(function(){ $(".Slash").ImageSwitch({Type:$(this).attr("rel"), NewImage:"images/im"+ImgIdx+".jpg", speed: 4000 }); ImgIdx++; if(ImgIdx>5) ImgIdx = 1; }); }); </script> and my <div class="SlashEff"> <ul> <li class="TryFadeIn" rel="FadeIn">Fade in</li> <li class="TryFlyIn" rel="FlyIn">Fly in</li> <li class="TryFlyOut" rel="FlyOut">Fly out</li> <li class="TryFlipIn" rel="FlipIn">Flip in</li> <li class="TryFlipOut" rel="FlipOut">Flip out</li> <li class="TryScroll" rel="ScrollIn">Scroll in</li> <li class="TryScroll" rel="ScrollOut">Scroll out</li> <li class="TrySingleDoor" rel="SingleDoor">Single Door</li> <li class="TryDoubleDoor" rel="DoubleDoor">Double Door</li> </ul> </div> Here is the link http://www.hieu.co.uk/blog/index.php/imageswitch/ I tried this, $(document).ready(function(){ PreloadImg(); $(".Slash").ImageSwitch({Type:$(this).attr("rel"), NewImage:"images/im"+ImgIdx+".jpg", speed: 4000 }); ImgIdx++; if(ImgIdx>5) ImgIdx = 1; }); I tried this but it gets executed only once.... I want to execute this every 5000ms... Is this possible...

    Read the article

  • WPF DependencyProperty event before content changed

    - by morsanu
    First I will explain the context of the problem, because you might be able to point me in a better direction. I need to implement a undo-redo like system on an object. The object has a series of dependency properties. Some are double, int, string but some are also of DependencyObject type. I need to save the value of the property before it is changed, and for this I added the CoerceValueCallback. public static readonly DependencyProperty MyBackgroundProperty = DependencyProperty.Register("MyBackground", typeof(MyCustomizableBackground), typeof(MyComponent), new UIPropertyMetadata(default(MyCustomizableBackground), null, new CoerceValueCallback(OnPropertyChanged))); In OnPropertyChanged I save the value before it's changed. MyCustomizableBackground is the DependencyObject that has also some dependency properties. The problem is that in this case, where I have a custom object as a property, the OnPropertyChanged method isn't triggered, but when I have a common type, it is triggered.

    Read the article

  • why "google is not defined " when i load google js api..

    - by zjm1126
    i follow the api step by step,but can't load successful.. this is my code: <html> <head> <meta name="viewport" content="initial-scale=1.0, user-scalable=no" /> </head> <body > <script type="text/javascript" src="http://www.google.com/jsapi?autoload=%7B%22modules%22%3A%5B%7B%22name%22%3A%22gdata%22%2C%22version%22%3A%222.x%22%2C%5B%22callback%22%3A%22onLoad%22%2C%22packages%22%3A%5B%22maps%22%5D%5D%7D%5D%7D"></script> <script type="text/javascript"> var service = new google.gdata.maps.MapsService('docs-example'); </script> </body> </html> the error is :google is not defined why ??

    Read the article

  • Git push origin master

    - by user306472
    I posted this question early yesterday, but the thread seems to have died out. For reference, see http://stackoverflow.com/questions/2619117/git-push-origin-master . Here's the low-down: I'm new to git. I just set up an account with github and I followed all their instructions flawlessly until I got to the last command of git push origin master Upon entering this command, I get the error message "fatal: No path specified. See 'man git-pull' for valid url syntax." If I type in git origin show the output I see is origin. If I type in git remote -n show the output is * remote origin URL: [email protected]: HEAD branch: (not queried) Local ref configured for 'git push' (status not queried): (matching) pushes to (matching) Please help me get to the bottom of this.

    Read the article

  • LIKE query for DateTime in NHibernate

    - by Anry
    For a column of type varchar I could write such a query: public IList<Order> GetByName(string orderName) { using (ISession session = NHibernateHelper.OpenSession()) { return session.CreateCriteria<Order>(). Add(Restrictions.Like("Name", string.Format("%{0}%", orderName))). List<Order>(); } } How do I write a similar LIKE-query for a column that has type datetime? public IList<Order> GetByDateTime(DateTime dateTime) { using (ISession session = NHibernateHelper.OpenSession()) { return //LIKE-query } } That is, if the method is passed the date and part-time (eg "25.03.2010 19"), then displays all orders are carried out in this period of time.

    Read the article

  • How to view Mercurial changeset changes using a GUI diff tool

    - by Marcus
    We use both Examdiff and Kdiff3 to view Mercurial changes. Just add this to .hgrc: [extdiff] cmd.kdiff3 = cmd.examdiff = C:\Program Files\ExamDiff Pro\ExamDiff.exe And then you can type hg examdiff or hg diff3 to see a complete diff of all your changes. What I would like is to do the same to see a "before and after" of files for a given changeset that was checked in by someone else. I know you can type hg log to see all changesets and then hg log -vprXX to see a text diff, but that's too hard for my GUI preferring eyes. Anyone know how to the equivalent with the GUI tools?

    Read the article

  • How do I get the XAML compiler to use textual content property on custom classes?

    - by Duncan
    Given a simple C# class definition like: [System.Windows.Markup.ContentProperty("PropertyOne")] public class SimpleBase { public string PropertyOne { get; set; } public string PropertyTwo { get; set; } } why is it not possible to omit the sys:string tags around the word Test in the xaml below. <custom:SimpleBase x:Class="TestType" xmlns:custom="clr-namespace:ConsoleApplication1;assembly=" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:sys="clr-namespace:System;assembly=mscorlib"> <sys:String>Test</sys:String> </custom:SimpleBase> Somehow the compiler correctly converts text to string for the type String, why doesn't it work for my custom type? The context can be found on my blog: http://www.deconflations.com/?tag=xaml

    Read the article

  • How to add css to form elements if attribute class is already being used in Jquery

    - by Gublooo
    Hey guys This is probably a dumb question - I'm using Jquery to validate the form. So the form elements have the class="required" attribute. input type="text" name="last_name" class="required"/ Now if i want to apply some css properties to the input fields of this form - how do I do that. I do not want to declare a general css for all input elements - I have declared the css as follows: input.form { color: #000; background: #fff; border: 2px solid #E1E1E1; font-size: 16pt; width:150px; } And I want to use it this way input class="form" type="text" name="last_name" class="required"/ But this wont work as there are two class attributes here. So how do I handle this. Thanks

    Read the article

  • JQuery: show div on radiobutton select

    - by nav
    Hi, I am trying to use JQuery to show a div when the user selects a particular radio button (Other) within a radiobutton group. The html is below <div id="countries"> <input id="Washington_D.C" TYPE="RADIO" NAME="location" VALUE="Washington">Washington D.C</input> <input id="Other" TYPE="RADIO" NAME="location" VALUE="">Other</input> <div id="other locations" style="display: none"> </div> </div> Using the JQuery code: $(document).ready(function(){ $("radio[@name='location']").change(function(){ if ($("radio[@name='location']:checked").val() == 'Other') $("#county_drop_down").show(); }); }); But its not showing the div 'other locations' when I select the radiobutton'Other'....

    Read the article

  • which collection should I use

    - by Masna
    Hello, I have a number of custom objects of type X. X has a number of parameters and must be unique in the collection. (I created my own equals method based on the custom parameters to examine this) In each object of type x, I have a list of objects y. I want to add/remove/modify easily an object y. For example: To write the add method, it would be something like add(objTypeX, objTypeY) I would check or the collections already has a objTypeX. If so: i would add the objTypeY to the already existing objTypeX else: i would create objTypeX and add objTypeY to this object. To modify an objTypeY, it would be something like(objTypeX, objTypeY, newobjTypeY) I would get objTypeX out of the collections and modify objTypeY to newobjTypeY Which collections should I use? I tried with hashset but i can get a specific object out of the list, without run down the list till I find that object. I develop this in vb.net 3.5

    Read the article

  • MOSS Faceted Search 3.0

    - by nav
    Hi, Has anyone installed Faceted Search v3.0 for MOSS working with date columns? When I map a column of DateTime type and click the Search BreadCrumb webpart "remove filter" link (next to the edit filter link) an exception is thrown. The search Breadcrumb webpart throws an error when I click the "Remove filter" link (this is the one represented by the broken link icon - next to the "Edit facet" icon). This seems to only occur after clicking the "Remove filter" link for Facets of DateTime type after which it occurs on every instance for all Facets. The error thrown is posted here: http://facetedsearch.codeplex.com/Thread/View.aspx?ThreadId=213398 Many Thanks, Nav

    Read the article

  • jquery checked checkbox IE problem

    - by lidermin
    Hi, I'm having an issue verifying if a checkbox is checked using jquery on Internet Explorer. This is the code I'm using: if ($('#chkjq_1').attr('checked') == true) It works fine on Firefox or Chrome, but on Internet Explorer 7, the condition is always false because the browser sets the property this way: <input id="chkjq_1" type="checkbox" CHECKED/> IE7 And the right way is the following: (Firefox, Chrome): <input id="chkjq_1" type="checkbox" checked="checked"/> FF, Chrome, etc What should I do to avoid this issue on Internet Explorer 7; is there a generic way in jquery to solve this? Thanks in advance.

    Read the article

  • What are the essential COM componenets required for burning DVD in c#.net in Windows XP?

    - by shruti
    im trying to burn DVD/CD through frontend C#.net code... i have used IMAPI2 for buring CD/DVD in windows XP..but it is giving me unhandeled exception... as:- System.InvalidCastException: Unable to cast COM object of type 'IMAPI2.Interop.MsftFileSystemImageClass' to interface type 'IMAPI2.Interop.MsftFileSystemImage'. This operation failed because the QueryInterface call on the COM component for the interface with IID '{7CFF842C-7E97-4807-8304-910DD8F7C051}' failed due to the following error: No such interface supported (Exception from HRESULT: 0x80004002 (E_NOINTERFACE)) can anyone plz help me out to solve this pbm...im not able to solve this error.. this project is working fine in Windows7 but unable to work with XP...???

    Read the article

  • How can i return abstract class from any factory?

    - by programmerist
    using System; using System.Collections.Generic; using System.Linq; using System.Web; namespace EfTestFactory { public abstract class _Company { public abstract List<Personel> GetPersonel(); public abstract List<Prim> GetPrim(); public abstract List<Finans> GetFinans(); } public abstract class _Radyoloji { public abstract List<string> GetRadyoloji(); } public abstract class _Satis { public abstract List<string> GetSatis(); } public abstract class _Muayene { public abstract List<string> GetMuayene(); } public class Company : _Company { public override List<Personel> GetPersonel() { throw new NotImplementedException(); } public override List<Prim> GetPrim() { throw new NotImplementedException(); } public override List<Finans> GetFinans() { throw new NotImplementedException(); } } public class Radyoloji : _Radyoloji { public override List<string> GetRadyoloji() { throw new NotImplementedException(); } } public class Satis : _Satis { public override List<string> GetSatis() { throw new NotImplementedException(); } } public class Muayene : _Muayene { public override List<string> GetMuayene() { throw new NotImplementedException(); } } public class GenoTipController { public object CreateByEnum(DataModelType modeltype) { string enumText = modeltype.ToString(); // will return for example "Company" Type classType = Type.GetType(enumText); // the Type for Company class object t = Activator.CreateInstance(classType); // create an instance of Company class return t; } } public class AntsController { static Dictionary<DataModelType, Func<object>> s_creators = new Dictionary<DataModelType, Func<object>>() { { DataModelType.Radyoloji, () => new _Radyoloji() }, { DataModelType.Company, () => new _Company() }, { DataModelType.Muayene, () => new _Muayene() }, { DataModelType.Satis, () => new _Satis() }, }; public object CreateByEnum(DataModelType modeltype) { return s_creators[modeltype](); } } public class CompanyView { public static List<Personel> GetPersonel() { GenoTipController controller = new GenoTipController(); _Company company = controller.CreateByEnum(DataModelType.Company) as _Company; return company.GetPersonel(); } } public enum DataModelType { Radyoloji, Satis, Muayene, Company } } if i write above codes i see some error: Cannot create an instance of abstract class or interface 'EfTestFactory_Company'How can i solve it? Look please below pic.

    Read the article

facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print

< Previous Page | 491 492 493 494 495 496 497 498 499 500 501 502  | Next Page >