Showing posts from July, 2013

HLOOKUP function

HLOOKUP function :- HLOOKUP(lookup_value,table_array,row_index_num,range_lookup)
1) Lookup_value     is the value to be found in the first row of the table. Lookup_value can be a value, a reference, or a text string.

2) Table_array     is a table of information in which data is looked up. Use a reference to a range or a range name.

3) Row_index_num     is the row number in table_array from which the matching value will be returned.

4) Range_lookup     is a logical value that specifies whether you want HLOOKUP to find an exact match or an approximate match

 If one is not found, the error value #N/A is returned.

The Message Box In VBA

=> One of the best functions in Visual Basic is the Message box. The message box displays a message, optional icon, and selected set of command buttons. The user responds by clicking a button.

=> The statement form of the message box returns no value (it simply displays the box ) :-

MsgBox Message, Type, Title


Message     Text message to be displayed
Type            Type of message box (discussed in a bit)
Title             Text in title bar of message box
You have no control over where the message box appears on the screen.

=>  The function form of the message box returns an integer value (corresponding to the button clicked by            the user). Example of use (Response is returned value) :-

Dim Response as Integer
Response = MsgBox(Message, Type, Title)

=>  The Type argument is formed by summing four values corresponding to the buttons to display, any icon to show, which button is the default response, and the morality of the message box.

=>  The first component …

Using the For/Next loop

Repeats a group of statements a specified number of times.
For I = 1 to 50 Step 2
A = I * 2
Debug.Print A
Next I
For I = 50 to 1 Step -2
A = I * 2
Debug.Print A
Next I
In this example, the variable I initializes at 1 and, with each iteration of theFor/Next loop, is incremented by 2 (Step). This looping continues until I becomesgreater than or equal to its final value (50). If Step is not included, the default valueis 1. Negative values of Step are allowed.
·  You may exit a For/Next loop using an Exit For statement. This will transferprogram control to the statement following the Next statement.

Visual Basic Data Types

Data Type Suffix
Boolean                                None
Integer                                    %
Long (Integer)                        &
Single (Floating)                       !
Double (Floating)                     #
Currency                                 @
Date                                   None
Object                                None
String                                     $
Variant                               None

Operator   Comparison
 >                                     Greater than
 <                                     Less than
 >=                                   Greater than or equal to
 <=                                   Less than or equal to
 =                                     Equal to
<>                                   Not equal to
.The result of a comparison operation is a Boolean value (True or False).
.We will use three logical operators
Operator Operation
Not                                Logical not
And        …


1. What are database functions e.g. what would be the difference Between SUM ( ) and DSUM ( )? 2. How are array functions useful? 3. What is the syntax for VLOOKUP ( ) / HLOOKUP ( ) function? 4. What functions can be used to lookup data on both the sides of Criteria mentioned (INDEX ( ) / OFFSET (  )) 5. Name any error handling formulas included in Excel built in 6. What is difference between Find and search? 7. What is difference between Delete and Clear Contents? 8. What is difference between Substitute and Replace? 9. What is difference between Count and CountA?

Application (Project) is made up

Application (Project) is made up of:
=>  Forms - Windows that you create for user interface
=>  Controls - Graphical features drawn on forms to allow user interaction (text boxes, labels, scroll bars,                           command buttons, etc.) (Forms and Controls are objects.)
=>  Properties - Every characteristic of a form or control is specified by a property. Example properties                                 include names, captions, size, color, position, and contents. Visual Basic applies default                                 properties. You can change properties at design time or run time.
=>  Methods - Built-in procedure that can be invoked to impart some action to a particular object.
=>  Event Procedures - Code related to some object. This is the code that is executed when a certain                                           event occurs.
=>  General Procedures - Code not related to objects. This code must be invoked by the application.
=>  Modules