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• This article summarizes key new features and improvements in the following versions of the.NET Framework.NET Framework 4.7.NET Framework 4.6.2.
• A TextBox control accepts user input on a Form. In this article, I will discuss how to create a TextBox control in Windows Forms at design-time as well as run-time.

Microsoft Access Performance Increase the Speed of Your Access Databases. Make an MDE File. If possible, make an MDE file out of your database. An MDE file cannot become decompiled, so your Visual Basic code always runs at top speed. The source state consists of the contents.

Make life easier for your Access users by building a parameter query that lets them search for specific text. Instead of fumbling around with wildcard characters.

The compiled state is the executable version of your code. The difference between these two states. January if you don't understand them.

When you run a procedure, VBA checks to see if the module containing the procedure is compiled. If it is, VBA simply runs the code. You probably surmised that this process of compiling is not a free lunch- it does take some time. So how do you go about this? Your Access database. VBA parlance) is said to be in a compiled state when all modules, including form and report modules, are saved in both states in the database.

This means that. the original source code is stored, as is the compiled version. In such a state, Access runs much faster, because it can completely bypass the compilation process. Getting your database into the compiled state is actually rather easy: Open any module. From the Debug Menu, select Compile and Save All Modules. Download Marvel Ultimate Alliance 2 Cracker. Your database is now in the compiled state. This includes form and report modules (called class modules using Access terminology) and standard modules.

There is no need for compilation. This is all fine and well, but is just as easy.

When you make certain changes to your database, it automatically becomes decompiled, which means that the compiled state that you. How to Avoid Decompilation. So how do you avoid decompilation, or loss of the compiled state? Any of the following actions can decompile your database: Modify any module code.

Make changes to code- bearing objects, such as form, reports and controls, or create such code- bearing objects. So the bottom line is: to avoid decompilation, don't do the above. It's not as bad as it seems. After all, your database does not need to be in a.

Therefore, if you follow these guidelines, you can enjoy peak performance from your module code: During development, don't use Compile All Modules. It is a waste of time, because the first time you make any changes to the module. Compile All Modules.

Rather, use the Compile Loaded Modules option instead. This action only compiles the. This is a much quicker operation, and results in the same syntax checking that Compile All Modules does. When you are ready to deliver your database for testing or live use, put it into the compiled state using the steps outlined above. Decompile to Eliminate Old VBA Compiled States.

The Compact feature only compacts the data, but not the code portion of an Access database. To flush the database of old code.

Bad DLL Calling Convention error, use the /decompile command occasionally. This allows you to use early. In most cases, this is. Active. X control into a form or report, Access automatically creates a Reference for that control.

Use Option Explicit. Always explicitly declare variables.

Ensure this happens in every module in your application by using the Option Explicit phrase at the top of each module. Choose the Most Efficient Variable Type. Use the most efficient variable type possible when declaring variables. For example, don't use a Long Integer when an Integer will do.

Avoid Variant types because the can be inefficient and slow. Use Early Binding. Avoid using the Object data type. Instead use the specific data type for the object you are working with. This allows Visual Basic to employ . IIf() does not employ . This means that both sides of the expression are always evaluated.

Use Dynamic Arrays. Instead of fixed arrays, use dynamic arrays with the Erase and Re. Dim statements to make better use of memory.

Take Advantage of Demand Loading. Organize and structure you modules to take advantage of Visual Basic's demand loading architecture. When a procedure is loaded from a module. By placing related procedures in the same module, you can reduce the number of loads the Visual Basic has to make. Eliminate Dead Code. Eliminate unused procedures and unused variables.

These elements use memory unnecessarily, and slow program load and execution. This allows Visual Basic to compile the value. Avoid Infinite Recursion. Avoid Infinite Recursion. Don't have code that can call itself without having some type of short- circuit mechanism. This can lead to . By understanding how this works.

String variables in procedures that are non- static use space on. Use the following information to write code that minimizes stack memory usage. Local fixed- length strings less than or equal to 6.

They don't use heap memory. Local fixed- length strings longer than 6. Local variable- length strings use 4 bytes of stack. If your code used a large number of fixed- length strings of 6. Minimize OLE References.

Every time you reference a Visual Basic object, method or property, you are initiating one or more calls the OLE's Idispatch interface. Minimizing the number of such calls is one of the best ways to make you code run faster. You can minimize OLE references by doing the following: Use object variables instead of directly referring to objects. Use the With statement and the For Each construct to minimize object references.

Move references to properties and methods outside of loops. When you refer to a member of collection, do so with the object's index number.

Referring to a collections member with a name or expression introduces extra work, and therefore, more time. Commodity Market Charts Free Download. Turn Off Screen Painting. Turn off screen painting during repetitive operations that update the screen. Consider using the Application. Echo property to turn off screen painting. Queries are not only faster and optimizable. If you're not familiar with how to use Select, Update, Delete, and Append queries, learn them to best use Access or SQL Server.

Close Your Database a Couple of Times a Day. VBA dynamically loads code into memory as needed on a module level. If a function is called or a variable is used, the entire module. As you are developing your application, you keep loading code into memory. Because of this, RAM will begin to fill up. To boost development performance. However, if you have library database code loaded, you should exit Access also.

It is especially important to close your database after a Compile All Modules command. The Compile All Modules command pulls all of your code into memory. This allows you to use early binding to bind variables. In most cases, this is handled for you: when you insert an Active. X control into a form or report. Access automatically creates a Reference for that control. Don't Use Expressions To Determine Loop Boundaries.

If use loop constructs in your VBA code, such as For.. Next, Do.. While, etc. For example, instead of saying. For int. Counter = 0 To Forms.

Count - 1. .. In the first example, the value needs to be determined for each iteration of the loop.