Posts

oop - Why does Wikipedia say "Polymorphism is not the same as method overloading or method overriding." -

I've looked around and I could not find any similar questions. Here is the paragraph I: The polymorphism method is not similar to overloading or law override. Polymorphism is related to the application of specific implementations only for one interface or more general base class. The method overloading refers to those who have the same name but have different signatures within the same class. The method is overwritten, where a subclass replaces one or more of the methods of the implementation of its parent methods, there is no overload of the method of polymorphism and the method is not overwritten. Can anyone here explain this more clearly, especially "is not equal to imposing the method of polymorphism"? I am confused now. Thanks in advance. Polyomorphism (very easily stated) is likely to use a derivative class where the base orbit Is expected: class base {} class derived base {} base v = new received (); // oak On the other hand, the method override,...

ms access - printing a record -

I am using this code to print a record from the form Private sub Bitianpratirekordklik () on error GoTo Err_btnPrintRecord_Click DoCmd.DoMenuItem acFormBar, acEditMenu, 8 ,, acMenuVer70 DoCmd.PrintOut acSelection Exit_btnPrintRecord_Click: Exit sub Err_btnPrintRecord_Click: MsgBox Err.Description resume Exit_btnPrintRecord_Click End sub However, this code is not automatically printing printer to select printer, it is automatically sending the printer by default . Anyone can help to print a print window to choose a printer from it. DoMenuItem has been deprecated since at least 2000 onwards. You can use RunCommand to open a print window. DoCmd RunCommand ACCMD print There is almost no good idea to print the record. It does not take much time to prepare a report that can be used with any argument. This will give you more control and will give a very enjoyable experience to your users.

javascript - Dojo caching issue in Spring -

I am having a problem where dojo wants to html cache and then it is not shown properly if I This function works well once, and this parameter works on all subsequent calls when it is unique. If I call it twice with duplicate parameters, then there is not necessarily anything. I appreciate any help combine function (name, page) {var id = dojo.byId ("userId"); Dojo.byId ("Result"). InnerHTML = "& lt; b & gt; Loading ... & lt; / b & gt;"; Dojo.xhrGet ({url: "/test.html?pName="+name+"id="+id.value+"&&page=+ Page, Weight: Function (Data, ioargs) {dojo.byId (" Result "). WinnerHTML = data;}, error: function (error, ioargs) {warning (error);}})} It does not appear that the dojo is caching HTML, but your browser or your web server is probably caching the result. Try to stop the blocking : True to your property object for dojo. XhrGet: dojo.xhrGet ({url: "/ Test.html? Pname =" + ...

c# - sqlDecimal to decimal clr stored procedure Unable to cast object of type 'System.Data.SqlTypes.SqlDecimal' to type 'System.IConvertible' -

I'm new to this I'm writing a clr. stored procedure that can be used to get values ​​used in a calculation Call for another stored procedure for Gives an archived methodology int (I think SqlInt32? Value of the table's value is int) which is then necessary to convert to decimal. Here I have the code: Public static integral mood (SQL MDMMYLUE, escalistering AMY type, out of SQLDCM Result) {aResult = 0; Try {SqlConnection conn = New SqlConnection ("Reference Connection = True"); SqlCommand cmd = New SqlCommand ("sp_GetType", conn); Cmd.Parameters.AddWithValue ("@ myValueType", aMyValueType); Cmd.CommandType = CommandType.StoredProcedure; Conn.Open (); Object type = CMD. Exclamation Asser (); Conn.Close (); Decimal type FORCalculation = Convert. ToDecimal (type); Decimal value = convert toDecimal (aMyValue); // ** calculation calc = new calculation (); Decimal result = calorie.docalulation (typefarculation, value); I get an exception...

c# - How to specify a min but no max decimal using the range data annotation attribute? -

I would like to specify that the value should be a decimal area> = 0, but I really do not want to apply A maximum value Even what I have so far ... I'm not sure what is the right way to do this. [class (typical), "0", "??"] public decimal value {get; set;} about something like this: [range (0.0, double.maxvalue)] You should do what you want and you can avoid using the wire.

JavaScript: Confirm dialog box that shows value from a text box -

Is there a way to display a confirmation dialog box on which a user is typed in a text box on a form ? (For example, if the user types 100.00, I would like to see a message in the dialog box, like "confirmation amount. OK click if $ 100.00 is the correct amount.") Yes: var amount = document.getElementById ("textbox"). value; Confirm (click on "Confirm Amount." OK, if $ "+ amount +" is the correct amount. ") Edit: Here's an example:

tfs - Problem with URL in IIS7.5 + Sharepoint Services in TFS2010 -

My question is a bit simple but I do not know how to get it. I have this dedicated server at home, almost just used for Team Foundation Server, I have a single server configuration wizard, so I run with SQL Server and IIS 7.5 The services are, the problem is that each link and URL generated on the SharePoint site is generated by the local computer name, which is TFS. I have a domain (example.com) and a subdomain that points to my home static IP address, the router is configured correctly, and if you have TFS.example.com The Sharepoint home page is available, but as I said, for example, any link is generated. I want to know what is the way to correct it before all the things that I have done before, go to PC and set up a Windows host rule, so ask any request For, TFS, it becomes my IP, but I want to change it, and to change something on the server, all the routes URL is rewritten or there is no domain like some things, and all customers connect to the internet It is. Thank y...

exception handling - C++ , is this goto statement warranted? -

I changed a little title because I thought this is a more appropriate question. Would you refactor it (looks like legitimate use of Goto)? If you go to the statement, how will you refactor the following code? if (data. Device) {try {...} hold (const std :: exception & amp;) {goto; } ... // There are more things that should not be caught:; } Full details if you try to use the #ifdef HAVE_GPU // GPU device (data. Device) {try {Integral :: Gpu eri (S), R, Q, Block. (Shell); Eri (base center (), quartets, data. Device); } // If GPU fails, then propagate CPU cache (std :: exception); } Data. Device + size =; Host_index.extend (block_index); Block_index.data.clear (); done: ; } Most preferred after #endif thanks , I decided to go with the flag, but Mr. With York comment. > Thank you to all if (data. Device) {bool Status = true; Try {...} hold (std :: exception) {status = false; } If (position) {... / more things that should not be caught}}

drupal - How to edit email templates without the mail editor plugin? -

I have established the Mail Editor module for the Drupal to edit the template for my email which sends my site out and I get this module after enabling the module: "This version is incompatible with the Drupal Core version 6.16." How do I work around it? Am I just trying out older versions of the plugin or can I use it instead? As you have downloaded the mail editor's 5.x version, or an older version of the 6.x branch. I have downloaded (only 6.x release available): It's okay, and there is nothing in the code to restrict the smaller version number. Out of curiosity, I do not see anything in the mail editor, the user does not have user settings page (admin / user / settings) of the core. Is there anything more in it?

html - Centered content with drop shadow and a pattern background. Is transparent PNGS the only way to go? -

यदि ऐसा है, तो आप किस पीएनजी आईई तय करेंगे? यदि आपको जरूरी मान्य करने के लिए अपने सीएसएस की जरूरत नहीं है, तो आप इसका उपयोग कर सकते हैं: .box-shadow {-moz-box- छाया: 2px 2px 3px # 969696; / * FF 3.5+ * / -webkit-box-shadow: 2px 2px 3px # 969696; / * वेबकिट = सफारी + क्रोम * / -khtml-box-shadow: 2px 2px 3px # 969696; / * कॉन्करर * / बॉक्स-छाया: 2px 2px 3px # 969696; / * ओपेरा * / फिल्टर: प्रोगिड: डीएक्सआईमेजट्रांसफ़ोर्म। माइक्रोसॉफ्ट। शैडो (रंग = '# 969 9 6', दिशा = 145, शक्ति = 3); / * आईई * /} यह उपयुक्त है जहां बॉक्स-छाया CSS3 संपत्ति का उपयोग करता है और MSIE के लिए यह फिल्टर का उपयोग करता है यदि आप अपने उपयोगकर्ताओं पर भरोसा कर सकते हैं कि ब्राउज़र अपडेट है या IE का उपयोग किया है, तो आपको सुरक्षित होना चाहिए। कोड पूरी तरह से मेरे सिर से नहीं है, मैं संदर्भ के लिए उपयोग किया है।

xaml - XmlnsDefinitionAttribute combined with x:Name causes compilation error with code generation -

I have and continue with using the XmlnsDefinition attribute in the Silverlight 4 assembly. Here is the case of trial: [/ P> XmlnsDefinition ("vase: foo", "SilverlightApplication1.SomeNamespace")] I MainPage.xaml Edit .cs and looks like this: Namespace SilverlightApplication1 {Public partial class home page: UserControl {public manpage ()} {InitializeComponent (); }}} Namespace SilverlightApplication1.SomeNamespace {Public Class SomeControl: ContentControl {}} Now I have the following in MainPage.xaml: & lt; UserControl X: Class = "Silverlight Application 1. Menopause" xmlns = "http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns: x = "http://schemas.microsoft.com/winfx/ 2006 / xaml "Xmlns: foo =" vase: foo "& gt; & Lt; Grid & gt; & Lt; Foo: SomeControl & gt; & Lt; TextBlock Text = "Hello World" /> & Lt; / Foo: SomeControl & gt; & Lt; / Grid...

iphone - UIWebView does not persist authentication on iOS3.2/iOS4 -

I have created an application that uses UIWebView to display a site that uses basic authentication. After the iOS 3.2 (on both the iPhone and the iPad) the content was stopped showing. My approach to authenticating users is: Create an NSURLConnection Resolve the authentication challenge to provide the credentials Implement the response responses to receive feedback and load the request in a UIWebView, i.e. [webView loadRequest:] Anytime iOS3.2, authentication was broken; UIWebView does not investigate any more against shared credential storage. For the iPhone on the IOS, I worked stupidly on this issue, which included the login informatino in the URL (i.e.) the initial load request for the webview. For IOS3.2 on the iPad, this is not sufficient initial request all rights have been certified, but subsequent calls are still not authenticated. Any suggestions? use setDefaultCredential: forProtectionSpace : shared NSURLCredentialStorage the webview still uses the ...

Django 1.2 DateField admin site problem -

Therefore, I am creating a Django 1.2 app, and I am having problems with the admin site. Import the users from django.db import model from Django.contrib.auth.models.modules.py: import datetime class Dailysales (models.Model): salesdate = models.DateField (primary_key = True) ... def __unicode __ (self): Returns self.salesdate.strftime ("% B /% d /% Y") My problem is that in the admin site , The area of ​​sale is being shown as text input, as far as I can tell the exact same thing with Django 1.1, and it gave me the date picture widget. I do not know whether it relates to 1.2 or I have made a mistake for some other reasons, but I'm not sure what I can see, because I think all the documents say that it should only work. If the model says that this is a datefiled, then why is it necessary to cause the admin page to be a datepeak? There is no indication on where to check.

What are some practical projects to consider in trying to learn C? -

I have seen many questions and answers so why should I learn why. I know that this is a low level, I understand how things work at that level, and this will make me a better programmer. There are some good books to read to help me learn. C. I do not think I have some practical projects on which I can work so that I can get help in knowing how language is used. There are many examples of the books I am studying in, and they are completely useful, as far as knowledge is concerned about language. But I do not feel like I'm getting any information in "real life" examples which I can do with C. My background: I am a college graduate who is programming programming C #. I am enjoying programming practice in C - but I feel like they are exercising. I know that I am not going to become an instant expert and I want to start wondering. I just need some tips for some things that can help me to become better, but it seems that more than just exercising. (I want to make it clea...

jquery - swfupload - multiple instances and setting dynamic data with setPostParam -

I am using swfupload, and there is a bunch of 'attach file' link and every single Jquery Dialog Opens which is associated with 1 swfupload example I tried to set a custom post parameter but it failed: www.arianhojat.com/temp/code/swfupload/index.html if You delete the 'setPostParam' line correctly but want to set parameters, it gives an error in firebug: "Without exception: setpost param k The call failed. "... Instead of trying an alternate solution ... I open the swfupload object every time ... and delete it after it is closed ... but I found an "irrelevant exception: finally the flash element could not be found" is not sure that this is an important error because the popup still shows if you retrieve the link I think it might be possible to go May be the way Q does not confirm about that error Here is my code that the task of this code: (The PS file upload should stop the communication and warn of a warning, as I do not have the host s...

python - On the google app engine, why do updates not reflect in a transaction? -

I store a group of entities in the Google App Engine Data Store with the same ancestors / parent / unit group . This is because institutions can be updated in a nuclear datastore transaction. The problem is as follows: I start the DB transaction I update entityX by setting entityX.flag = True I save the unit SX I query for the unit where the flag == is true but, here's the problem. This query does not return any results. This unit should have come back, but it was not. When I withdraw the transaction, my code works perfectly, so it should be a transaction which should be a strange behavior. Should the institutions in the entity group update somewhere else in the same transaction? PS: I am using Python and GAE tells me that I can not use nested transactions: ( App engine transactions are designed in that manner, that means a snapshot is seen as the beginning of the transaction read within the transaction, so in the transaction first The result of writing d...

version control - Moving from SVN to TFS -

I have come here with colonization using Tortoise SNN for a control of source control. Now in a new area, I am using TFS. I have some questions, I'm sure the more will be followed ;-): This clearly (I hope !) Have all the same features, where I can make changes with the comment, I can return back, compare variations between different dated source files. Should I be happy with this change, or should try to bring back the change in SVN I or, in my thoughts, which is better Thank you, You will find very similar features in both Subversion with Tortoise SNN and Team Foundation Server, however TFS is well integrated into Visual Studio. To recommend switching from TFS, I do not have any killer facility or issue to suggest changes in the integrated nature of TFS. TFS also gets the benefit of work / bug, all built-in tracking, so you have everything in a development tool.

performance - How can I speed up this Sql Server Spatial query? -

I have a simple SQL server spatial query (which I think): Hold USA States some four-sided polygon in all (ie. viewport Google / Bing maps to a web page / bounding box) select Cast ( 2 as a TINYINT) as LocationType, a.Name FullName, StateId, a.Name, Boundary.STAsText () range, CentrePoint.STAsText (as aS) Centrepoint [dbo]. [States where one] @ BoundingBox.STIntersects (a.Boundary) = 1 It takes 6 seconds to run: ( Here is the execution plan. ... deleted and filter operation statistics ... deleted Now, I'm sure how to debug it ... to know that I need a fine tune etc. Is there a spatial index? I believe ... / ****** object: index [SPATIAL_States_Boundary] script IV Date: 07/28/2010 18:03:17 ****** / SPATIA Create L. current index [SPATIAL_States_Boundary] [dbo]. [States] ([limit]) using the GEOGRAPHY_GRID (Grid = ( LEVEL_l = high, level_2 = high, level_3 = high, level_4 = high), CELLS_PER_OBJECT = 1024, PAD_INDEX = off, SORT_IN_TEMPDB = off, DROP_EXI...

Stop build when no changes from last build in HUDSON -

Hi, I'm new to Hudson, and I have a pretty stupid question when Hudson discovered that since the last build someone There is no change, so do not stop building? Why? I did a test job with a shell step command and always ran the command, whether the repository changed or not. How can I stop the stock if there is no change? Thanksgiving create triggers are different types. I think that you have configured your test job on " from time to time ", which will continue to build on the specified intervals regardless of code changes. If you call " Poll SCM " then Hudson will vote for your SCM for changes and will only build upon changes.

validation - Why this feed doesn't validate -

It tells me that there is an invalid character but I can not find it See values ​​for just a href: