c visual basic c cli and f

... which specific geometric objects are to be derived, while in C+ + /CLI one writes ref class Shape abstract { }; // C+ + /CLI to indicate the exact same underlying CLI reference type The two declarations ... facility for what is referred to as deterministic finalization of garbage collected types that hold scarce resources • A form of deep-copy semantics associated with the C+ + copy constructor and copy ... David’s agenda, and obviously the same person cannot be successful in leading the Visual C+ + product unit of Microsoft and detailing a 300++ C+ + \CLI language specification for ECMA standardization!...

Ngày tải lên: 26/10/2014, 21:25

... and can all more or less whatever the hardware supports In fact, C# and Visual Basic are practically identical, aside from their syntactic differences The fact that many pre-.NET Visual Basic ... as quickly as a Visual Basic developer can, and a good Visual Basic programmer can churn out object hierarchies and graphics code as effectively as a C# developer What many developers forget, ... direction Don’t bother trying to run the examples with a pre-.NET version of Visual Basic such as Visual Basic The changes between Visual Basic and Visual Basic NET are huge, and many Visual Basic...

Ngày tải lên: 27/06/2014, 08:20

... and can all more or less whatever the hardware supports In fact, C# and Visual Basic are practically identical, aside from their syntactic differences The fact that many pre-.NET Visual Basic ... as quickly as a Visual Basic developer can, and a good Visual Basic programmer can churn out object hierarchies and graphics code as effectively as a C# developer What many developers forget, ... direction Don’t bother trying to run the examples with a pre-.NET version of Visual Basic such as Visual Basic The changes between Visual Basic and Visual Basic NET are huge, and many Visual Basic...

Ngày tải lên: 14/08/2014, 11:20

... user-interface designs, and try out pieces of code After you receive feedback from the users, pick the best user interface, or decide which coding approach will work best, you discard the prototype and ... interface, and then they look for specific results For example, a test result might require that a certain text box contains a specific piece of text Some of these programs can capture images and ... 06_053416 ch02.qxd 1/2/07 6:28 PM Page 23 Chapter 2: Lifecycle Methodologies To help your customer champion understand the tradeoffs, you should phrase levels of difficulty in terms of costs and exchanges...

Ngày tải lên: 14/08/2014, 11:20

... quickly with constant feedback from users to ensure that development continues toward a useful goal Specific principles (such as reflective improvement, osmotic communication, and personal safety) ... Visual Basic executes the postcondition check in the Finally section, even if subroutine DoPrintInvoices throws an exception and this code re-throws it the Catch section Public Sub PrintInvoices() ... geographically separated, but in frequent contact via conference calls, although you will lose the Crystal Clear benefit of osmotic communication I’ve worked on several projects where we had customers...

Ngày tải lên: 14/08/2014, 11:20

... example, if you declare an array of 1,000 structures, Visual Basic allocates memory for them when it reaches the declaration If you allocate 1,000 class objects, Visual Basic only allocates memory for ... use Picking Candidate Classes One way of picking candidate classes is to take a close look at the project’s written specification or description, and highlight all of the nouns in the text For ... training and practice to use UML effectively Few users have experience with UML, and training them in its use can be difficult and time-consuming Even after they understand the ideas of UML, they...

Ngày tải lên: 14/08/2014, 11:20

... ApplyLocaleToControl calls the resource manager’s ApplyResources method to load a control’s resources from the locale-specific resource file, and then recursively calls itself for each control contained ... ctl.Name, culture_info) For Each child As Control In ctl.Controls component_resource_manager.ApplyResources( _ child, child.Name, culture_info) Next child End Sub Private Sub radEnglish_CheckedChanged(ByVal ... creates a CultureInfo object for the locale and sets the thread’s CurrentCulture and CurrentUICulture to that object This makes the program load resources from the appropriate locale-specific...

Ngày tải lên: 14/08/2014, 11:20

... double-click My Project, click the References tab, click the Add drop-down, and select Reference On the Add Reference dialog, click the Browse tab, select the DLL you just created, and click OK ... Project menu and select Add New Item Pick the Resources File template, give the file a name, and click OK To create different resource files for different locales, create another resource file with ... double-click My Project Select the References tab, click the library’s reference, and click the Remove button Then use the Add drop-down as before to add a reference to the new DLL Rebuild the executable...

Ngày tải lên: 14/08/2014, 11:20

... program could use the following code to process files: ‘ Make a FileProcessorFactory Dim fp_factory As New FileProcessorFactory() ‘ Make a FileProcessor Dim fp As FileProcessor = fp_factory.MakeFileProcessor(dlgOpen.FileName) ... create For example, a CustomerFactory object creates a Customer object Sometimes there may be a FactoryBase class from which the specific factory classes inherit The FactoryBase class would define ... and calls its MakeFileProcessor function to make an object from one of the FileProcessor subclasses It then calls that object’s ProcessFile method Notice that the factory creates instances of...

Ngày tải lên: 14/08/2014, 11:20

... DeclarationEvent(code_element) Case EnvDTE.vsCMElement.vsCMElementFunction Dim code_function As CodeFunction2 = _ DirectCast(code_element, CodeFunction2) If code_function.Type.TypeKind = vsCMTypeRef.vsCMTypeRefVoid Then ... DirectCast(project_item.FileCodeModel, FileCodeModel2) For Each code_element As CodeElement2 In fcm.CodeElements ‘ See if it’s a class If code_element.Kind = vsCMElement.vsCMElementClass cboClass.Items.Add(New ... ‘Add a command to the Commands collection: Dim command As Command = commands.AddNamedCommand2(_addInInstance, _ “PropertyProcedureAddIn”, “PropertyProcedureAddIn”, _ “Executes the command for PropertyProcedureAddIn”,...

Ngày tải lên: 14/08/2014, 11:20

... MainClass” & vbCrLf & _ “ Public Function Main(ByVal the_picture As Object) As Object” & _ vbCrLf & _ vb_code & vbCrLf & _ “ End Function” & vbCrLf & _ “ End Class” & vbCrLf & _ “End Namespace” ‘ Compile ... The ExecuteNonQuery function shown in the following code executes a SQL command and returns a success or failure message It simply creates an OleDbCommand object associated with the command and ... New CompilerErrorCollection ‘ Array of references needed by the code Public References As New Collection ‘ Object to be passed to the Main function Public MainParameter As Object Public Function...

Ngày tải lên: 14/08/2014, 11:20

... rightclick the toolbox and select Choose Items Click the Browse button and find the compiled control’s DLL 270 15_053416 ch10.qxd 1/2/07 6:32 PM Page 271 Chapter 10: Custom Controls and Components ... GetOrMakeRegexInfo(ByVal client_control As TextBox) _ As RegexInfo If m_RegexInfos.ContainsKey(client_control) Then Return m_RegexInfos.Item(client_control) Else Return New RegexInfo End If End Function ... expression dictionary If m_RegexInfos.ContainsKey(client_control) Then m_RegexInfos.Remove(client_control) RemoveHandler client_control.Validating, _ AddressOf Client_Validating End If Else ‘ Add...

Ngày tải lên: 14/08/2014, 11:20

... System.ComponentModel Public Class ContactConverter Inherits ExpandableObjectConverter ‘ We can convert from String Public Overrides Function CanConvertFrom( _ ByVal context As System.ComponentModel.ITypeDescriptorContext, ... changes and closes If you click Cancel, the dialog closes and leaves the ScribbleControl unchanged The following sections explain in detail how to implement each of these design-time features This control ... Protected Overrides Sub LoadComponent() m_ScribbleControl = DirectCast(Me.Component, ScribbleControl) picBackColor.BackColor = m_ScribbleControl.BackColor lwlLineWidthEditorListBox.SelectedIndex...

Ngày tải lên: 14/08/2014, 11:20

... Sub _ Private Sub IfCondition2() MessageBox.Show(“IfCondition2”) End Sub End Class The code defines two conditional subroutines: IfCondition1 and IfCondition2 IfCondition1 ... automatic documentation and designtime support Automatic Documentation To enable automatic documentation, double-click My Project, select the Compile tab, and check the “Generate XML documentation file” ... doubleclick My Properties, select the Compile tab, and click the Advanced Compile Options button to display the dialog shown in Figure 12-5 Enter the constant’s definition in the “Custom constants”...

Ngày tải lên: 14/08/2014, 11:20

... ‘ Trim off leading carriage returns and line feeds Dim crlf() As Char = New Char() { _ Microsoft.VisualBasic.ControlChars.Cr, _ Microsoft.VisualBasic.ControlChars.Lf _ } code_text = code_text.TrimStart(crlf) ... documentation can be a significant fraction of the total time for each release Although keeping the documentation current is difficult in these sorts of frequent-release projects, it is particularly ... Office), and type (assembly, type, property, constructor, and so forth) It also stores the item’s scope if defined by a scope tag and a collection of DocNode objects representing the item’s children...

Ngày tải lên: 14/08/2014, 11:20

... easier and, thus, faster and cheaper The following chapters describe more specific techniques for following some of these principles Chapter 15, “Coding Standards,” describes rules you can follow ... initially focus on the most common 80 percent of the cases In later releases, you can expand the program’s coverage to include less-typical cases if necessary At some point, if the difficulty of handling ... practices such as patterns, anti-patterns, refactoring, design by contract, test-driven development, and comment-first programming ❑ Tools for performing specific tasks such as database access...

Ngày tải lên: 14/08/2014, 11:20

... the function as a noun instead of a verb For example, the following code calls the driving_map object’s BestForeColor function and saves the result in a form’s ForeColor property: Me.ForeColor ... in Clicking, Changing, Moving, or Canceling For events that occur after the code takes some action, end the event’s name with a verb in the past tense, as in Clicked, Changed, Moved, or Canceled ... to describe each constructor Each constructor’s method would be slightly different, describing a different set of parameters, so you couldn’t even copy and paste them without some modification...

Ngày tải lên: 14/08/2014, 11:20

... predict the kinds of errors that might occur, it is usually much more efficient to check for those conditions, rather than allowing a Try Catch block to handle the problem after the fact For example, ... MyApplication_UnhandledException(ByVal sender As Object, _ ByVal e As Microsoft.VisualBasic.ApplicationServices _ UnhandledExceptionEventArgs) Handles Me.UnhandledException ProcessUnhandledException(sender, ... places to inspect the data for correctness include the following: ❑ Places where data is created Was it created correctly? ❑ Places where data is transformed Was it transformed correctly? ❑ Places...

Ngày tải lên: 14/08/2014, 11:20

... a custom constant In Solution Explorer, double-click My Project, click the Compile tab, and click the Advanced Compile Options button to display the dialog shown in Figure 17-2 Enter custom constants ... movement and clicks so that you can simulate user interface actions These tools can also take and compare form snapshots so, for example, you can require that a form have exactly the same appearance ... mouse_event or a commercial capture and replay tool to simulate moving the mouse onto a control and clicking there But what happens if the control has a different behavior if you click it in another...

Ngày tải lên: 14/08/2014, 11:20

... work and doesn’t automatically check for needed libraries as ClickOnce deployment does An Xcopy deployment simply copies the files in a project onto the target computer ClickOnce ClickOnce deployment ... Sanford It contains a useful overview of both technologies and gives some advice about which to use in different circumstances “Introduction to ClickOnce Deployment” (http://msdn.microsoft.com/vbasic/learning/ ... between ClickOnce and Windows Installer, see the article “Choosing Between ClickOnce and Windows Installer” (http://msdn.microsoft.com/library/ en-us/dndotnet/html/clickoncevsinstaller.asp) by Michael...

Ngày tải lên: 14/08/2014, 11:20