In this example we reference a deeply nested sub form control. Visual Basic Function Examples. Skip to content. Visual Basic Tutorials. Access to Google Earth. See how simple it is to use Google Earth to display your point data on a map. Access Email via Gmail. No need to use Outlook to send emails out from Microsoft Access.
See how simple it is to use a Gmail account to send emails to your clients and prospects and sales associates. VBA Age Calculation.
Sending out marketing letters? Here is the VB6 code to convert the names and address to proper case. All Visual Basic beginners should know these techniques. Concatenate Records Example. In this example we take a normalized table of data and change it to non-normalized — more like we would see in a spreadsheet. A Visual Basic advanced programming example.
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Home Vba Code Examples. Recent Post. Distributed System Architecture. Exit Function End Function. This section of the Access VBA contains documentation for all the objects, properties, methods, and events contained in the access object model.
Use the Execute method to run saved import or export operation. Well this function is based on a function name concatenate. The records to be included, plus the field to be used for creating the concatenated string, are given by the SQL statement that is passed to the function. Passed SQL statement must return only one field in order for this function to work correctly.
The value in the concatenated string is given by the string that is provided to the function as a delimiter string.
OpenRecordset pstrSQL. EOF Then. MoveFirst Do While Not. MoveNext Loop End If. DeleteAllRelationships function code is basically used to delete all relationships in the current database. In some circumstances, access database fails to display relations between tables in the relationship window.
Since you could not view the relationship nor you could not delete them, which will take your database to an inconsistent state. Be aware of the similarities to the earlier code snippet that selected text in cell A1, and the differences. In this code, cell B1 is selected, and then the string "Hello World" is applied to the cell that has been made active.
The quotes around the text specify a string value as opposed to a numeric value. Remember how you chose cell B2 to display the Stop Recording button again?
That action shows up as a line of code as well. The macro recorder records every keystroke. The lines of code that start with an apostrophe and colored green by the editor are comments that explain the code or remind you and other programmers the purpose of the code. VBA ignores any line, or portion of a line, that begins with a single quote. Writing clear and appropriate comments in your code is an important topic, but that discussion is out of the scope of this article.
Subsequent references to this code in the article do not include those four comment lines. When the macro recorder generates the code, it uses a complex algorithm to determine the methods and the properties that you intended. If you do not recognize a given property, there are many resources available to help you. For example, in the macro that you recorded, the macro recorder generated code that refers to the FormulaR1C1 property.
Not sure what that means? Be aware that Application object is implied in all VBA macros. The code that you recorded works with Application. Select FormulaR1C1 in the recorded macro and press F1. The Help system runs a quick search, determines that the appropriate subjects are in the Excel Developer section of the Excel Help, and lists the FormulaR1C1 property.
You can choose the link to read more about the property, but before you do, be aware of the Excel Object Model Reference link near the bottom of the window. Choose the link to view a long list of objects that Excel uses in its object model to describe the Worksheets and their components.
Choose any one of those to see the properties and methods that apply to that particular object, along with cross references to different related options. Many Help entries also have brief code examples that can help you. For example, you can follow the links in the Borders object to see how to set a border in VBA. The Borders code looks different from the recorded macro.
One thing that can be confusing with an object model is that there is more than one way to address any given object, cell A1 in this example. Sometimes the best way to learn programming is to make minor changes to some working code and see what happens as a result.
Try it now. Open Macro1 in the Visual Basic Editor and change the code to the following. You do not need to save the code to try it out, so return to the Excel document, choose Macros on the Developer tab, choose Macro1 , and then choose Run. Cell A1 now contains the text Wow!
You just combined macro recording, reading the object model documentation, and simple programming to make a VBA program that does something. The VBA community is very large; a search on the Web can almost always yield an example of VBA code that does something similar to what you want to do. If you cannot find a good example, try to break the task down into smaller units and search on each of those, or try to think of a more common, but similar problem.
Starting with an example can save you hours of time. That does not mean that free and well-thought-out code is on the Web waiting for you to come along. In fact, some of the code that you find might have bugs or mistakes. The idea is that the examples you find online or in VBA documentation give you a head start.
Remember that learning programming requires time and thought. Before you get in a big rush to use another solution to solve your problem, ask yourself whether VBA is the right choice for this problem. Programming can get complex quickly. It is critical, especially as a beginner, that you break the problem down to the smallest possible logical units, then write and test each piece in isolation.
If you have too much code in front of you and you get confused or muddled, stop and set the problem aside. When you come back to the problem, copy out a small piece of the problem into a new module, solve that piece, get the code working, and test it to ensure that it works.
Then move on to the next part. There are two main types of programming errors: syntax errors, which violate the grammatical rules of the programming language, and run-time errors, which look syntactically correct, but fail when VBA attempts to execute the code. Although they can be frustrating to fix, syntax errors are easy to catch; the Visual Basic Editor beeps and flashes at you if you type a syntax error in your code.
For example, string values must be surrounded by double quotes in VBA. To find out what happens when you use single quotes instead, return to the Visual Basic Editor and replace the "Wow! If you choose the next line, the Visual Basic Editor reacts. The error "Compile error: Expected: expression" is not that helpful, but the line that generates the error turns red to tell you that you have a syntax error in that line and as a result, this program will not run.
Runtime errors are harder to catch because the programming syntax looks correct, but the code fails when VBA tries to execute it. For example, open the Visual Basic Editor and change the Value property name to ValueX in your Macro, deliberately introducing a runtime error since the Range object does not have a property called ValueX.
Go back to the Excel document, open the Macros dialog box and run Macro1 again. You should see a Visual Basic message box that explains the run-time error with the text, "Object doesn't support this property of method. When you return to the Visual Basic Editor, it is in a special debug mode that uses a yellow highlight to show you the line of code that failed. As expected, the line that includes the ValueX property is highlighted. You can make changes to VBA code that is running, so change ValueX back to Value and choose the little green play button underneath the Debug menu.
The program should run normally again.
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