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What third party ActiveX controls have you used?
Sandhya.Kishan
- Jul 30th, 2012
The third party activex controls used are MSDataGrid, MSChart, MSCalendar.
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How can you tell what kind of object an object variable is holding?
Sandhya.Kishan
- Jun 21st, 2012
We declare an object variable to hold the object.For example, a word processing application may provide an Application object, a Document object, and a Toolbar object.
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What is the return type of Instr and Strcmp?
Instr – integer (Numeric position)Strcmp - integer ( if both the string are equal they result = 0) Strcmp (Str1, Str2, Comparetype) Comparing mode = 0 – Binary Comparing 1 – Textual Comparing
Sandhya.Kishan
- May 29th, 2012
Syntax of InStr InStr([start,]string1,string2[,compare]) The InStr function can return the following values: * If string1 is "" - InStr returns 0 * If string1 is Null - InStr returns Null * If stri...
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What is the max size allowed for Msgbox Prompt and Input Box?
1024
Sandhya.Kishan
- May 29th, 2012
The max size allowed for message box prompt and input box is 1024 bytes.
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What is the max size allowed for Max label caption length.
2,048
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What is the max size allowed for Max Control Names length
255.
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What is the max size allowed for Extension in Visual Basic
Frm, bas, cls, res, vbx, ocx, frx, vbp, exe
Sandhya.Kishan
- Jun 27th, 2012
The extension allowed in vb are vbx, ocx, frx, vbp,Frm, bas, cls and res.
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What is frx?
When some controls like grid and third party control placed in our application then it will create frx in run time.
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Name some date function
Dateadd(), Datediff(), Datepart(), Cdate()
Sandhya.Kishan
- May 29th, 2012
1.DATE_FORMAT() -Format date as specified
2.DATE_SUB() -Subtract a time value (interval) from a date
3.DATEDIFF() -Subtract two dates
4.DATE_ADD() -Add time values (intervals) to a date value -
What is keyword used to compare to objects?
ISOperator – Returns Boolean.
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What is the diff. Between function and sub procedures
) Function will return value but a sub procedure wont return values…
Sandhya.Kishan
- May 31st, 2012
The difference between a function and sub procedure is 1.A function returns a value but the sub procedures do not return values. 2.We can call function by its name but we need to prefix a call keywor...
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Where will we give the option explicit keyword and for what?
In the general declarations section. To trap undeclared variables.
Sandhya.Kishan
- May 31st, 2012
We use explicit keyword to trap undeclared variables in the declaration section.
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What is the difference between Property Get, Set and Let?
Set – Value is assigned to ActiveX Object from the form. Let – Value is retried to ActiveX Object from the form. Get- Assigns the value of an expression to a variable or property.
Sandhya.Kishan
- Jun 1st, 2012
Get property is used to initialize value to a variable.
Set property is used to set a reference to a property using the ByRef.
let property is used to is used to set value to a property using the ByVal.
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Drag and Drop state numbers and functions?
State 0 – Source control is being dragged with the range of a target. 1 – Out of the range of a target. 2 – One position in the target to another.
Sandhya.Kishan
- Jun 27th, 2012
There are 3 states numbers drag and drop functions
State 0 source control is being dragged with the range of a target.
State 1 out of the range of a target.
State 2 one position in the target to another -
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What is control array and how many we can have it with in the form?
Group of control share the same name. Max 32, 767.
Sandhya.Kishan
- May 31st, 2012
Control array consists of a group of controls that share the same name type and the same event procedures.It is a single dimensional array and we can add or delete array elements at the run time.Contr...
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Suppose from form1 to form2 object property settings will arise to ?
Invalid procedure call or argument (Run time error – 5)
Sandhya.Kishan
- Jun 27th, 2012
Form1 to form2 object property settings will arise to run time error or to an invalid argument.
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Different type of Instantiation?
Private – Only for the Specific Module. Public not creatable – Private & Public Multi Use - Variable we have to declare. Single Use – Not possible through dll. Global Multiuse – Have variable not Required to Declare. Global Single Use - Only for exe.
Sandhya.Kishan
- Jun 1st, 2012
Private -only for the Specific Module.
Multi Use - variable we have to declare.
Single Use -not possible through dll.
Global Multiuse -have variable not Required to Declare.
Global Single Use - Only for exe. -
How to declare Dll Procedure?
Declare function "<Function Name>" lib "<Lib Name>" Alias "<Alias Name>" (Arg, …..) as Return type.
Sandhya.Kishan
- May 21st, 2012
To declare a DLL procedure, you add a Declare statement to the Declarations section. 1.If the procedure returns a value, write the declare as a Function Example Declare Function publicname Lib "libn...
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