Setting Properties At Run-Time
By now you know how to set a component
property before running your program (=at "Design Time"),
Now we will learn how to do that during program's Run-Time.
To change a property, use the following syntax:
TheControlName.ThePropertyName = TheNewPropertyValue
For example, suppose we have Command Button
With the name "Command1", and we want to
set its Caption property to be "Hello".
To do that, we will use the following code:
Command1.Caption = "Hello"
To test it, simply copy the line above to your
Command1 Click event, run the program
and click the button at run-time.
Note that the Hello is inside quotes because
it's a String.
You can assign a variable value to a property:
Dim MyVar As String
MyVar = "Hello"
Command1.Caption = MyVar
This code will do exactly the same as the code line above it.
Note that MyVar is without quotes, because it's variable.
And how do you set a Form caption property at run-time?
exactly the same:
Form1.Caption = "Hello"
Popular Posts
-
Learning about Events Visual Basic is "Event Driven" language. What does it mean? Everything that happening, launch an event. You...
-
Learning about Parameters Parameters are variables that being passed to a Sub. Look at the first line of the Command Button's Click even...
-
Learning about Variables Using Variables is one of the most basic and important subjects in programming, so this lesson is very important. V...
-
Learning about Events (Continue) Lets program the Form_Load event. "MsgBox" is Visual Basic command that launch a message box. for...
-
JSP pages are high level extension of servlet and it enable the developers to embed java code in html pages. JSP files are finally compiled ...
-
OPERATORS: There are 7 operators they are: 1.Arithmetic operators : +,-,*,/,% : addition,subtraction,multiply,division...
-
INTRODUCTION TO 'C': C is a programming language developed at AT & T's Bell laboratories of USA in 1972.it was designed by d...
-
SQL aliases can be used with database tables and with database table columns, depending on task you are performing. SQL column aliases are u...
-
The SQL COUNT aggregate function is used to count the number of rows in a database table. The SQL COUNT syntax is simple and looks like this...
-
SYMBOLIC CONSTANTS OR MACRO: In this #define is a macro used for a constant value to be assigned in the program. for example: pi its value i...
No comments:
Post a Comment