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  • Modular programming is the method of programming small task or programs

    Modular programming is the method of programming small task or sub-programs that can be arranged in multiple variations to perform desired results. This methodology is great for preventing errors due to the fact that each task executes a specific process and can be debugged individually or within a larger program when combined with other tasks or sub programs. C# is a great example of how to implement modular programming because it allows for functions, methods, classes and objects to be use to create smaller sub programs. A program can be built from smaller pieces of code which saves development time and reduces the chance of errors because it is easier to test a small class or function for a simple solutions compared to testing a full program which has layers and layers of small programs working together.Yes, it is possible to write the same program using modular and non modular programming, but it is not recommend it. When you deal with non modular programs, they tend to contain a lot of spaghetti code which can be a pain to develop and not to mention debug especially if you did not write the code. In addition, in my experience they seem to have a lot more hidden bugs which waste debugging and development time. Modular programming methodology in comparision to non-mondular should be used when ever possible due to the use of small components. These small components allow business logic to be reused and is easier to maintain. From the user’s view point, they cannot really tell if the code is modular or not with today’s computers.

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  • Change default settings in MacVim

    - by AeroCross
    I want to do some changes in MacVim to suit my needs. I'm new in it, so stick with me. The basic changes I want to do is to start the program with the following settings: Line numbers activated Top toolbar deactivated Auto-indenting activated I found out that you can write set lines=xx columns=yy to the /Users/USERNAME/.gvimrc file and it will change the default window width-height Also, you can change the color scheme with :colorscheme scheme in that file, too, but I don't know how to change the other settings. I wanna give Vim a try, but the little things (like these) are important.

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  • Set default open-with app to a Python program on a Mac

    - by Vincent
    I use the open source application UliPad to edit restructured text files (rst). It is a Python application that I launch via Terminal like so: python32 UliPad.py I have python32 as an alias to the 32bit install of Python on my machine. I have several versions installed. First I would like a way to launch UliPad like other OS X apps. Not really sure how to do this. Secondly, I would like to set all .rst files to be opened with UliPad.py. Is there a way to do this? I know how to choose the default app in Finder but not sure how to choose UliPad as that app.

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  • Windows 7 - problems launching default application

    - by Chris W
    Just built up a new W7 PC. I've noticed some strange issues with launching default applications. I've got Visual Studio & SQL Server Management Studio set run as administrator when launched. If i double click a .sql file SSMS opens ok but the file itself does not get loaded. If I do the same with a .sln then I get nothing at all from Visual Studio. For the latter I presume the UAC prompt is hidden somewhere waiting for me to say it's ok to launch the app but i've no idea what's happening with SSMS. Is this a W7 bug or are there some settings somewhere that I can tweak to improve this behaviour?

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  • how to change the default open-with program to a program on the second disk

    - by Scott????
    I have a 250GB HDD for my system and a 60GB SSD using a SATA port. I installed most of my applications on the SSD. There's a strange thing though. I can not change the default open-with program to a program which is on the SSD. I think it may be caused by permission so I gave my user a 'full control' permission on the security tab in disk properties. But changing permissions is not work. After I choose an application (I've tried Notepad++, Sublime, 7Zip, etc.), nothing is added in the below window: Also, if I install 7Zip on my machine, the right click menu items can not be added.

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  • What’s ‘default’ for?

    - by Strenium
    Sometimes there's a need to communicate explicitly that value variable is yet to be "initialized" or in other words - we’ve never changed it from its' default value. Perhaps "initialized" is not the right word since a value type will always have some sort of value (even a nullable one) but it's just that - how do we tell? Of course an 'int' would be 0, an 'enum' would the first defined value of a given enum and so on – we sure can make this kind of check "by hand" but eventually it would get a bit messy. There's a more elegant way with a use of little-known functionality of: 'default'Let’s just say we have a simple Enum: Simple Enum namespace xxx.Common.Domain{    public enum SimpleEnum    {        White = 1,         Black = 2,         Red = 3    }}   In case below we set the value of the enum to ‘White’ which happens to be a first and therefore default value for the enum. So the snippet below will set value of the ‘isDefault’ Boolean to ‘true’. 'True' Case SimpleEnum simpleEnum = SimpleEnum.White;bool isDefault; /* btw this one is 'false' by default */ isDefault = simpleEnum == default(SimpleEnum) ? true : false; /* default value 'white' */   Here we set the value to ‘Red’ and ‘default’ will tell us whether or not this the default value for this enum type. In this case: ‘false’. 'False' Case simpleEnum = SimpleEnum.Red; /* change from default */isDefault = simpleEnum == default(SimpleEnum) ? true : false; /* value is not default any longer */ Same 'default' functionality can also be applied to DateTimes, value types and other custom types as well. Sweet ‘n Short. Happy Coding!

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  • Preparing a MySQL INSERT/UPDATE statement with DEFAULT values

    - by Raveren
    Quoting MySQL INSERT manual - same goes for UPDATE: Use the keyword DEFAULT to set a column explicitly to its default value. This makes it easier to write INSERT statements that assign values to all but a few columns, because it enables you to avoid writing an incomplete VALUES list that does not include a value for each column in the table. Otherwise, you would have to write out the list of column names corresponding to each value in the VALUES list. So in short if I write INSERT INTO table1 (column1,column2) values ('value1',DEFAULT); A new row with column2 set as its default value - whatever it may be - is inserted. However if I prepare and execute a statement in PHP: $statement = $pdoObject-> prepare("INSERT INTO table1 (column1,column2) values (?,?)"); $statement->execute(array('value1','DEFAULT')); The new row will contain 'DEFAULT' as its text value - if the column is able to store text values. Now I have written an abstraction layer to PDO (I needed it) and to get around this issue am considering to introduce a const DEFAULT_VALUE = "randomstring"; So I could execute statements like this: $statement->execute(array('value1',mysql::DEFAULT_VALUE)); And then in method that does the binding I'd go through values that are sent to be bound and if some are equal to self::DEFAULT_VALUE, act accordingly. I'm pretty sure there's a better way to do this. Has someone else encountered similar situations?

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  • Making one of the folders default in Apache

    - by OmerO
    Hello, The file & directory structure of my website is as follows: /Library/WebServer/mysite/joomla .. /Library/WebServer/mysite/wiki .. /Library/WebServer/mysite/forum .. /Library/WebServer/mysite/index.php As you see, there are various applications each residing in separate folders. Now, in order to define this structure, I have made this entry in Apache http-vhosts.config file: ServerName mysite.com DocumentRoot "/Library/WebServer/mysite" ** And I already have the DirectoryIndex defined: DirectoryIndex index.html index.php, and so on. So far so good but I want this specific functionality: When someone visits mysite, he/she should automatically directed to: /Library/WebServer/mysite/joomla (and therefore /Library/WebServer/mysite/joomla/index.php) I don't want to achieve that functionality by putting a redirection code inside /Library/WebServer/mysite/index.php or /Library/WebServer/mysite/index.htm because that causes time delays (because of the redirection, of course) But in this case, the only proper way of achieving it seems to set DocumentRoot this way: DocumentRoot "/Library/WebServer/mysite/joomla" But when I set it that way, then the other folders (/wiki, /forum, etc.) are simply not served by Apache. To work around it, I put directives like: Alias /wiki /Library/WebServer/mysite/wiki .. Alias /forum /library/WebServer/mysite/forum and it did work actually the way I wanted. But... I still cannot use it that way because in this case I just couldn't manage to make the wiki use Short URLs (as described in link text) So, I have to set the DocumentRoot back to /Library/WebServer/mysite and shoud be able to assign /Library/WebServer/mysite/joomla as the "default directory" (my own terminology :) Can I do it in Apache? Is there any other way you might suggest? Thanks.

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  • Missing Fields and Default Values

    - by PointsToShare
    © 2011 By: Dov Trietsch. All rights reserved Dealing with Missing Fields and Default Values New fields and new default values are not propagated throughout the list. They only apply to new and updated items and not to items already entered. They are only prospective. We need to be able to deal with this issue. Here is a scenario. The user has an old list with old items and adds a new field. The field is not created for any of the old items. Trying to get its value raises an Argument Exception. Here is another: a default value is added to a field. All the old items, where the field was not assigned a value, do not get the new default value. The two can also happen in tandem – a new field is added with a default. The older items have neither. Even better, if the user changes the default value, the old items still carry the old defaults. Let’s go a bit further. You have already written code for the list, be it an event receiver, a feature receiver, a console app or a command extension, in which you span all the fields and run on selected items – some new (no problem) and some old (problems aplenty). Had you written defensive code, you would be able to handle the situation, including similar changes in the future. So, without further ado, here’s how. Instead of just getting the value of a field in an item – item[field].ToString() – use the function below. I use ItemValue(item, fieldname, “mud in your eye”) and if “mud in your eye” is what I get, I know that the item did not have the field.   /// <summary> /// Return the column value or a default value /// </summary> private static string ItemValue(SPItem item, string column, string defaultValue) {     try     {         return item[column].ToString();     }     catch (NullReferenceException ex)     {         return defaultValue;     }     catch (ArgumentException ex)     {         return defaultValue;     } } I also use a similar function to return the default and a funny default-default to ascertain that the default does not exist. Here it is:  /// <summary> /// return a fields default or the "default" default. /// </summary> public static string GetFieldDefault(SPField fld, string defValue) {     try     {         // -- Check if default exists.         return fld.DefaultValue.ToString();     }     catch (NullReferenceException ex)     {         return defValue;     }     catch (ArgumentException ex)     {         return defValue;     } } How is this defensive? You have trapped an expected error and dealt with it. Therefore the program did not stop cold in its track and the required code ran to its end. Now, take a further step - write to a log (See Logging – a log blog). Read your own log every now and then, and act accordingly. That’s all Folks!

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  • Insert default value if input-text is deleted

    - by Kim Andersen
    Hi all I have the following piece of jQuery code: $(".SearchForm input:text").each(function(){ /* Sets the current value as the defaultvalue attribute */ if(allowedDefaults.indexOf($(this).val()) > 0 || $(this).val() == "") { $(this).attr("defaultvalue", $(this).val()); $(this).css("color","#9d9d9d"); /* Onfocus, if default value clear the field */ $(this).focus(function(){ if($(this).val() == $(this).attr("defaultvalue")) { $(this).val(""); $(this).css("color","#4c4c4c"); } }); /* Onblur, if empty, insert defaultvalue */ $(this).blur(function(){ alert("ud"); if($(this).val() == "") { $(this).val($(this).attr("defaultvalue")); $(this).css("color","#9d9d9d"); }else { $(this).removeClass("ignore"); } }); } }); I use this code to insert some default text into some of my input fields, when nothing else is typed in. This means that when a user sees my search-form, the defaultvalues will be set as an attribute on the input-field, and this will be the value that is shown. When a user clicks inside of the input field, the default value will be removed. When the user sees an input field at first is looks like this: <input type="text" value="" defaultvalue="From" /> This works just fine, but I have a big challenge. If a user have posted the form, and something is entered into one of the fields, then I can't show the default value in the field, if the user deletes the text from the input field. This is happening because the value of the text-field is still containing something, even when the user deletes the content. So my problem is how to show the default value when the form is submitted, and the user then removes the typed in content? When the form is submitted the input looks like this, and keeps looking like this until the form is submitted again: <input type="text" value="someValue" defaultvalue="From" /> So I need to show the default value in the input-field right after the user have deleted the content in the field, and removed the focus from the field. Does everyone understand what my problem is? Otherwise just ask, I have struggled with this one for quite some times now, so any help will be greatly appreciated. Thanks in advance, Kim Andersen

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  • Default value list for pipeline param in Powershell

    - by fatcat1111
    I have a Powershell script that reads values off of the pipeline: PARAM ( [Parameter(ValueFromPipeline = $true)] $s ) PROCESS { echo "* $s" } Works just fine: PS my.ps1 foo * foo I would like the script to have list of default values, as the most common usage will always use the same values and storing them in the default will be most convenient. I did the usual assignment: PARAM ( [Parameter(ValueFromPipeline = $true)] $s = 'bar' ) PROCESS { echo "* $s" } Again, works just fine: PS my.ps1 * bar PS my.ps1 foo * foo However when setting the default to be a list, I get back something entirely reasonable but not at all what I want: PARAM ( [Parameter(ValueFromPipeline = $true)] $s = @('bar', 'bat', 'boy') ) PROCESS { echo "* $s" } Result: PS my.ps1 * bar bat boy I expected: PS my.ps1 * bar * bat * boy How can I get one call in to the Process loop for each default value? (This is somewhat different than getting one call in to Process, and wrapping the current body of in a big foreach loop over $s).

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  • How to import a class from default package

    - by mykhaylo
    Hi, I am using Eclipse 3.5 and I have created a project with some package structure along with the default package. I have one class in default package - Calculations.java and I want to make the use of that class in any of the package (for instance in com.company.calc). When I try to make the use of the class which is default package, its giving me compile error. Its not able to recognise the class in default package. Where is a problem? Calculations.java - source code public class Calculations{ native public int Calculate(int contextId); native public double GetProgress(int contextId); static { System.loadLibrary("Calc"); } } I can put my class in any other package. This class has some native method which is implemented in Delphi . If I put that class in any of the folder,I will have to make the change that DLL which I want to avoid(really - I can not). Thats why I put my class in the default package.

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  • remove default.aspx from a request

    - by b0x0rz
    i am trying to remove default.aspx from any request that might have it. protected void Application_BeginRequest(object sender, EventArgs e) { HttpContext context = HttpContext.Current; string url = context.Request.Url.ToString(); // remove default.aspx if (url.EndsWith("/default.aspx", StringComparison.OrdinalIgnoreCase)) { url = url.Substring(0, url.Length - 12); } context.Response.Redirect(url); } gives an error: **too many redirects occurred trying to open...** what can i change to make it work? thnx

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  • Can a single argument constructor with a default value be subject to implicit type conversion

    - by Richard
    I understand the use of the explicit keyword to avoid the implicit type conversions that can occur with a single argument constructor, or with a constructor that has multiple arguments of which only the first does not have a default value. However, I was wondering, does a single argument constructor with a default value behave the same as one without a default value when it comes to implicit conversions?

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  • how to use a parameterized function for the Default Binding of a Sql Server column

    - by Walt Gaber
    I have a table that catalogs selected files from multiple sources. I want to record whether a file is a duplicate of a previously cataloged file at the time the new file is cataloged. I have a column in my table (“primary_duplicate”) to record each entry as ‘P’ (primary) or ‘D’ (duplicate). I would like to provide a Default Binding for this column that would check for other occurrences of this file (i.e. name, length, timestamp) at the time the new file is being recorded. I have created a function that performs this check (see “GetPrimaryDuplicate” below). But I don’t know how to bind this function which requires three parameters to the table’s “primary_duplicate” column as its Default Binding. I would like to avoid using a trigger. I currently have a stored procedure used to insert new records that performs this check. But I would like to ensure that the flag is set correctly if an insert is performed outside of this stored procedure. How can I call this function with values from the row that is being inserted? USE [MyDatabase] GO SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO CREATE TABLE [dbo].[FileCatalog]( [id] [uniqueidentifier] NOT NULL, [catalog_timestamp] [datetime] NOT NULL, [primary_duplicate] nchar NOT NULL, [name] nvarchar NULL, [length] [bigint] NULL, [timestamp] [datetime] NULL ) ON [PRIMARY] GO ALTER TABLE [dbo].[FileCatalog] ADD CONSTRAINT [DF_FileCatalog_id] DEFAULT (newid()) FOR [id] GO ALTER TABLE [dbo].[FileCatalog] ADD CONSTRAINT [DF_FileCatalog_catalog_timestamp] DEFAULT (getdate()) FOR [catalog_timestamp] GO ALTER TABLE [dbo].[FileCatalog] ADD CONSTRAINT [DF_FileCatalog_primary_duplicate] DEFAULT (N'GetPrimaryDuplicate(name, length, timestamp)') FOR [primary_duplicate] GO USE [MyDatabase] GO SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO CREATE FUNCTION [dbo].[GetPrimaryDuplicate] ( @name nvarchar(255), @length bigint, @timestamp datetime ) RETURNS nchar(1) AS BEGIN DECLARE @c int SELECT @c = COUNT(*) FROM FileCatalog WHERE name=@name and length=@length and timestamp=@timestamp and primary_duplicate = 'P' IF @c > 0 RETURN 'D' -- Duplicate RETURN 'P' -- Primary END GO

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  • Get default value of class member ( C# )

    - by Ruben Aster
    Let's assume I have a class ClassWithMember class ClassWithMember { int myIntMember = 10; } How do I get the default value 10 of the myIntMember member by System.Type? I'm currently struggling around with reflections by all I retreive is the default value of int (0) not the classes default member (10)..

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  • OSX: Selecting default application for all unknown and different file types (extensions)

    - by Leo
    I work in cluster computing and am using Mac OS X 10.6. I send off hundreds of computing jobs a day, and each one comes back with with a different extension. For example, svmGeneSelect.o12345 which is the std output of my svmGeneSelect job which is job number 12345. I don't control the extensions. All files are plain text. I want OSX to open any file extension that it hasn't seen before with my favorite text editor when I click on it. Or even better set up file association defaults for extension patterns ie textEdit for extensions matching *.o*. I do NOT want to create file associations for individual files since this extension will only ever exist once, and I do not want to go through the process of selecting the application to use for each file. Thanks for any help you can offer.

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  • Default Parameters vs Method Overloading

    - by João Angelo
    With default parameters introduced in C# 4.0 one might be tempted to abandon the old approach of providing method overloads to simulate default parameters. However, you must take in consideration that both techniques are not interchangeable since they show different behaviors in certain scenarios. For me the most relevant difference is that default parameters are a compile time feature while method overloading is a runtime feature. To illustrate these concepts let’s take a look at a complete, although a bit long, example. What you need to retain from the example is that static method Foo uses method overloading while static method Bar uses C# 4.0 default parameters. static void CreateCallerAssembly(string name) { // Caller class - Invokes Example.Foo() and Example.Bar() string callerCode = String.Concat( "using System;", "public class Caller", "{", " public void Print()", " {", " Console.WriteLine(Example.Foo());", " Console.WriteLine(Example.Bar());", " }", "}"); var parameters = new CompilerParameters(new[] { "system.dll", "Common.dll" }, name); new CSharpCodeProvider().CompileAssemblyFromSource(parameters, callerCode); } static void Main() { // Example class - Foo uses overloading while Bar uses C# 4.0 default parameters string exampleCode = String.Concat( "using System;", "public class Example", "{{", " public static string Foo() {{ return Foo(\"{0}\"); }}", " public static string Foo(string key) {{ return \"FOO-\" + key; }}", " public static string Bar(string key = \"{0}\") {{ return \"BAR-\" + key; }}", "}}"); var compiler = new CSharpCodeProvider(); var parameters = new CompilerParameters(new[] { "system.dll" }, "Common.dll"); // Build Common.dll with default value of "V1" compiler.CompileAssemblyFromSource(parameters, String.Format(exampleCode, "V1")); // Caller1 built against Common.dll that uses a default of "V1" CreateCallerAssembly("Caller1.dll"); // Rebuild Common.dll with default value of "V2" compiler.CompileAssemblyFromSource(parameters, String.Format(exampleCode, "V2")); // Caller2 built against Common.dll that uses a default of "V2" CreateCallerAssembly("Caller2.dll"); dynamic caller1 = Assembly.LoadFrom("Caller1.dll").CreateInstance("Caller"); dynamic caller2 = Assembly.LoadFrom("Caller2.dll").CreateInstance("Caller"); Console.WriteLine("Caller1.dll:"); caller1.Print(); Console.WriteLine("Caller2.dll:"); caller2.Print(); } And if you run this code you will get the following output: // Caller1.dll: // FOO-V2 // BAR-V1 // Caller2.dll: // FOO-V2 // BAR-V2 You see that even though Caller1.dll runs against the current Common.dll assembly where method Bar defines a default value of “V2″ the output show us the default value defined at the time Caller1.dll compiled against the first version of Common.dll. This happens because the compiler will copy the current default value to each method call, much in the same way a constant value (const keyword) is copied to a calling assembly and changes to it’s value will only be reflected if you rebuild the calling assembly again. The use of default parameters is also discouraged by Microsoft in public API’s as stated in (CA1026: Default parameters should not be used) code analysis rule.

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  • Default Keyboard for new users in Windows 7

    - by xited
    I just installed Windows 7 and I want all users signing in to the computer to see the Language Bar customized with the following three languages: "English (American)" "French (Standard)" "Chinese (Simplified PRC)" I am running the following four lines of code at log on in order to change the registry such that each user will see the language bar, and then have access to the three keyboard layouts mentioned above. reg add "HKCU\Software\Microsoft\CTF\LangBar" /v ShowStatus /t REG_DWORD /d 4 /f reg add "HKCU\Keyboard Layout\Preload" /v 2 /d 0000040c reg add "HKCU\Keyboard Layout\Preload" /v 3 /d 00000c0a reg add "HKCU\Keyboard Layout\Preload" /v 4 /d 00000804 The above works fine, but with one small/major inconvenience: the user has to log off and then log back on in order for these changes to take effect and see the language bar, as described above. The question becomes: How can I force these changes to take effect so that users don't have to log off and then log back in to see the language bar. This has to be done automatically when users log in.

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  • Assign default program to scanner button

    - by Juancito
    When I press the start button on my Epson V500 Photo scanner, I am confronted with 4 choices of which I always need the same one. How can I make the start button on my scanner automaticaly start the same application without user intervention? I am using win7 home 64bit.

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