Feb
28
Event Source: From where event generate like click
Event Listener: Which will listen the event
Event Handler: The code which will handle the event
Feb
27
Variables are named storage locations whose values can be manipulated during the execution of program i.e., during the program-run.
Data types are means to identify the type of data and associated operations with it.
Categories of Data Types
In VB, we can divide the data types in two major categories:
1. Numeric Data Types:
Numeric data are the data that consists of numbers, which can be used in calculations. In VB, the numeric data can be represented in seven ways through following seven data types.
| Type | Storage |
| Byte | 1 byte |
| Integer | 2 bytes |
| Long | 4 bytes |
| Single | 4 bytes |
| Double | 8 bytes |
| Currency | 8 bytes |
| Decimal | 12 bytes |
2. Non-Numeric Data Types:
Non-numeric data values are those that cannot participate in calculations e.g., a string or a true value or a stored form etc. There are basically five (5) non-numeric data types in VB but two of these data types can further divided into two subtypes. Thus, the following table lists these seven non-numeric data types
| Type | Storage |
| String (fixed length) | Length of string |
| String (variable length) | Length + 10 bytes |
| Date | 8 bytes |
| Boolean | 2 bytes |
| Object | 4 bytes |
| Variant (numeric) | 16 bytes |
| Variant (text) | Length + 22 bytes |
The size of a fixed length string remains the same as declared, regardless of the information stored in it. However, variable length strings take the size equals to the number of characters assigned to it plus 10 bytes.
Feb
20
Feb
19
Feb
18
Unit 1:
Introduction of Visual Basic: Variable Names, Data Types, Assignment, If-then, If-then-else, expression, print statement, arrays, variable declaration, Built-in & User Defined types, Subroutine and functions, Boolean Operators, Arithmetic Operator, For-next, do-loop, while-wend, procedure/Public, Private and Static & Dim Statement.
Unit 2:
Structure of VB Program: Forms & Built in Controls, Properties and events, Code Module, Scale Modes, Printer Object (Printing text, setting font, graphics), Common dialog Boxes, picture controls, image-controls, send keys, MS-Common controls, Error Handling, Classes, Control Arrays, MDI, SDI.
Unit 3:
Database Interface: Review of ANSI SQL, ODBC, Pass through ODBC, DAO, MS-Jet Engine, Workspaces, Databases, recordsets, Data bound controls, ActiveX controls, ADO, ActiveX Data controls, RDO.
Unit 4:
Reports: Data view Window, Data Environment Designer, Crystal Report and Data Report Utility.
Unit 5:
COM/DCOM: Overview of COM/DCOM, using Windows API Functions, MAPI interface, Microsoft Transaction Server, Visual source safe.
Feb
14
Congratulations to all MCA 2011-14 and MCA 2010-13 batch Students of School of Management Sciences, Varanasi for their good performance in Semester Examination Results.
Wish you all the best…
Feb
13
Congratulations MCA 2012-15 batch School of Management Sciences, Varanasi for their 1st semester results. You did well in MCA-113 : COMPUTER CONCEPTS AND PROGRAMMING IN C, keep it up and try to improve more and more your programming skills.
All the best.
Feb
07
The last date to apply for the position is 11-February-2013. If you have already applied in last six month, do not apply again. Only apply in the prescribed format below, otherwise your application will be rejected.
JK Technosoft is looking for passing batch of 2013 for MCA and 2012 for B.E./B.Tech for software trainee position.
For More Details Click the Below Link: