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Which keywords can do case insensitive string comparison in c#?
string.Equals("string number 1", "String NUMBER 1", StringComparison.CurrentCultureIgnoreCase) There is also a similar override of String.Compare().
nikhilrawat23
- May 27th, 2008
All things in above sample are right bt one correction is there.there should be OrdinalIgnoreCase instead of OriginalIgnoreCase....
Charlito
- Apr 3rd, 2008
String stringA = "This is a Test";string stringB = "THIS IS A TEST";bool sameString = stringA.Equals( stringB, StringComparison.OriginalIgnoreCase );
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What are multiple delegates?Can 2 delegates in a class can refer to a same method?
nikhilrawat23
- May 27th, 2008
multiple delegates and multicast delegates both are diffrent terms with diffrent aspects.delegate having one property that it could have multiple delegates in it.it means single delegates contain mult...
sajeesh
- Oct 17th, 2007
Multi cast delegates means a delegate can hold more than one methods but not vice versa.
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What is the difference between Cast and Convert int i1 = 5;double d1 = i1 + 0.99;int i2 = (int)d1; //result is 5i2 = Convert.ToInt32(d1);//result is 6Why does cast and convert in above example have different results.
nikhilrawat23
- May 28th, 2008
convert internally call parse method for conversion implicitly. If we are using convert for conversion and the object is null than it will return 0 value while if we r using cast then it will give nul...
ChandimaP
- Sep 23rd, 2007
Convert will correctly converts a number from one format to another if possible.However, Cast ignores the encoding format of the data type. It deals directly with the encoded binary values of the data...
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You can create the following using C#
Skill/Topic: BeginnerA) class librariesB) Stand alone GUI (Windows Forms) applicationsC) ASP.NET Web pagesD) Command Line applications
nikhilrawat23
- May 29th, 2008
you can create all four type of application through c#.just go through add new project----than u will find there some option-1.windowapplication2.window control liberary3.crystal report application4.c...
madhavi
- Nov 14th, 2006
We can create all the four types of applicationYou can refer VS.Net2005 --> New Project --> U can find all the templates to create above mentioned applications
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Interfaces provide implementation of methods
Skill/Topic: IntermediateA) TrueB) FalseExplanation: They only provide declaration on methods, events and properties
bhagyeshpatel
- Dec 26th, 2005
You should be aware, however, that it is not permitted to supply implementationsof any of the members of an interface.This is a line of C# Professional 3rd edition book pressed wroxPage No 124So it is not posible to implement methods in interface but u can implemement it on drived class.
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Value of x
This is interview question,public void A() { int x; x = 8; x *= 4 + 8 / 2; } Given the above code, what is the value of "x"?options:- A) 3 B) 2 C)4 D) None
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Can abstract classes have constructors? If the answer is yes, when do they get called?
vaneet
- Jun 3rd, 2008
Yes, the abstract classes can have constructors.But they can be run only by the subclasses of the abstract class
kiran prasad
- Dec 4th, 2007
Yes, Abstract classes have constructors.They are called when their derived class objects are instantiated..For more information, READ : Chapter 4, Professional C# 2005 by Wrox publications...Thanks.
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Does C# support properties of array types?
Yes. Here's a simple example: using System;class Class1 {private string[] MyField;public string[] MyProperty {get { return MyField; }set { MyField = value; }}}class MainClass{public static int Main(string[] args) {Class1 c = new Class1();string[] arr = new string[] {"apple", "banana;c.MyProperty = arr;Console.WriteLine(c.MyProperty[0]); // "apple"return 0;}}
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How to implement multiple inheritence in C#
A) Using InterfaceB) Using Abstract classC) Using DelegatesD) Using Events
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We have a dataset with one thousand records. Now we bind it to a datagrid. Now the question is suppose we have modified only three records in datagrid then how to update these three records in dataset. We have a single button to update the records
Max Headroom
- Jun 13th, 2008
Use the RowState property of the DataTable in the DataSet that the grid is bound to where RowState is Modified. You can do this in a number of ways, if you do a Select on the DataTable you can pass Ro...
manish sinha
- Jun 29th, 2007
Use dataset.GetChanges() method to return a modified copy of the dataset. This dataset will have only 3 records, modified ones.
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A=(5>6)8:10Consol.Writeline(a);please tell me the output of this statementit is conditional statement .the result is error or give 8 as a result?
radhikayepuri
- Jun 16th, 2008
The Syntax of the question has gone wrong.It should be A=(5>6)?8:10Then the answer would be 10.
Dhanapal
- Sep 11th, 2007
This Answer is 10;Correct Syntax is: A=(5>6)?8:10.
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Design Patterns
What kind of design patterns can be used for C# development projects?
learner22
- Jun 24th, 2008
A design pattern can solve many problems by providing a framework for building an application. Existing design patterns make good templates for your objects, allowing you to build software faster. The...
PurnimaMahajan
- May 28th, 2008
A design pattern is not code, per se, but a "plan of attack" for solving a common software development problem. The GOF had distilled the design patterns in their book into three main subject areas: Creational, Structural, and Behavioral.
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What is CTS?
Skill/Topic: BeginnerA) Common Translation systemB) Csharp Type SystemC) Common Type SystemD) Constants Translation Specification
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NET offers the follwing security features:
Skill/Topic: AdvancedA) Transaction based securityB) Code-based securityC) Both the aboveD) None of the above
albanaco
- Jun 25th, 2008
Both..NET offers "code access security".NET offers "transaction security" (System.Transactions)
cocomany
- Mar 14th, 2006
Both- transactions in com+ offer role based security s well.
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To access attributes, the following is used:
Skill/Topic: AdvancedA) reflectionB) pointersC) collections
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What happens if we refer a variable which in not initialized in C#
A) Compiler throws warning messageB) Compiler throws error messageC) Compiles the application with out any problemExplanation: Variable needs to be initialized before use
John Jiang
- Jul 4th, 2008
There is no veriable in a class only fields or properties. when we say variables that means they are in a method. so it will throw a error!!!
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C# pointers
Can we use pointer in c# ?if we can then how it can implement ?and if no then why we can not use pointer in c#?
hmehta
- Jul 8th, 2008
We can use pointers in C# within the scope of unsafe code e.g.:unsafe{//all pointer related code here}but doing so, makes ur code un managed.Also, if you want to have pointers to class level variables, you must use fixed keyword.
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What is a delegate?
A delegate object encapsulates a reference to a method. In C++ they were referred to as function pointers.
skurt000
- Jul 11th, 2008
A typical example of delegate usage can be found in event handling. For example, when the event is raised that the selected index of a dropdown list changed, we want method "ddlFoo_SelectedIndexChanged(object sender, EventArgs e)" to be called.
learner22
- Jun 20th, 2008
A delegate in C# is simlilar to function pointer in C or C++. Using a delegate allows the programmer to encapsulate a reference to a method inside a delegate object.The delegate object can then be pas...
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Messagebox in C#
How to use messagebox in C#? What is the process for creating message box?
raghulvarma
- Sep 8th, 2008
You could do that byMessageBox.Show("hai");or if u want the symbols then u could go forMessageBox.Show(string mesasage,string caption,messageboxbuttons buttons)
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What is the use of fixed statement in c#?
asifdcsku
- Sep 12th, 2008
Fixed is used while doing type casting Fixed ensures that no exception will be thrown even if we are doing a wrong cast.
Vikas Yadav
- Apr 2nd, 2008
The fixed keyword is responsible for the pinning of managed objects(maanged by CLR). Pinning is the act of specifying to the GC that the object in question can’t be moved.Permitted in unsafe context only i.e wwhen u are using pointers in C#.
C# Interview Questions
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