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Is there any sample C# code for simple threading?
Some sample code follows: using System;using System.Threading;class ThreadTest {public void runme() {Console.WriteLine("Runme Called");} public static void Main(String[] args) {ThreadTest b = new ThreadTest();Thread t = new Thread(new ThreadStart(b.runme));t.Start();}}
sahu
- Jan 6th, 2006
Ans:using System;using System.Threading;class ThreadTest {public void runme() {Console.WriteLine("Runme Called");} public static void Main(String[] args) {ThreadTest b = new ThreadTest();Thread t = new Thread(new ThreadStart(b.runme));t.Start();}}
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Is there regular expression (regex) support available to C# developers?
Yes. The .NET class libraries provide support for regular expressions. Look at the documentation for the System.Text.RegularExpressions namespace.
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Why do I get a security exception when I try to run my C# app?
Some security exceptions are thrown if you are working on a network share. There are some parts of the frameworks that will not run if being run off a share (roaming profile, mapped drives, etc.). To see if this is what's happening, just move the executable over to your local drive and see if it runs without the exceptions. One of the common exceptions thrown under these conditions is System.Security.SecurityException.To...
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How can I get around scope problems in a try/catch?
If you try to instantiate the class inside the try, it'll be out of scope when you try to access it from the catch block. A way to get around this is to do the following: Connection conn = null; try {conn = new Connection();conn.Open();}finally{ if (conn != null) conn.Close(); }By setting it to null before the try block, you avoid getting the CS0165 error (Use of possibly unassigned local variable...
sahu
- Jan 10th, 2006
ans:Answer: If you try to instantiate the class inside the try, it'll be out of scope when you try to access it from the catch block. A way to get around this is to do the following: Connection conn =...
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What is the equivalent to regsvr32 and regsvr32 /u a file in .NET development?
Try using RegAsm.exe. The general syntax would be: RegAsm. A good description of RegAsm and its associated switches is located in the .NET SDK docs. Just search on "Assembly Registration Tool".
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Does C# support parameterized properties?
No. C# does, however, support the concept of an indexer from language spec. An indexer is a member that enables an object to be indexed in the same way as an array. Whereas properties enable field-like access, indexers enable array-like access. As an example, consider the Stack class presented earlier. The designer of this class may want to expose array-like access so that it is possible to inspect...
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What is the implicit name of the parameter that gets passed into the class set method?
Value, and its datatype depends on whatever variable we are changing.
sahu
- Jan 6th, 2006
Ans:value is implicit name of the parameter that gets passed into the class set method.
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How do you inherit from a class in C#?
Place a colon and then the name of the base class. Notice that it is double colon in C++.
swag
- Dec 24th, 2005
let's you have 2classes Class A is the base classClass B is the derived classClass B:A is the syntax to inherit a base class
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Does C# support multiple inheritance?
No, use interfaces instead.
sahu
- Dec 9th, 2005
No, Instead of this, we can inheritance the multiple interface,but C++ support multiple inheritance
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C# provides a default constructor for me. I write a constructor that takes a string as a parameter, but want to keep the no parameter one. How many constructors should I write?
Two. Once you write at least one constructor, C# cancels the freebie constructor, and now you have to write one yourself, even if there is no implementation in it.
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What is the top .NET class that everything is derived from?
System.Object.
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What is an interface class?
It is an abstract class with public abstract methods all of which must be implemented in the inherited classes.
sahu
- Dec 12th, 2005
Ans:Definition:An Interface is a reference type and it contains only abstract members. Interface's members can be Events, Methods, Properties and Indexers. But the interface contains only declaration ...
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Why cannot you specify the accessibility modifier for methods inside the interface?
They all must be public. Therefore, to prevent you from getting the false impression that you have any freedom of choice, you are not allowed to specify any accessibility, it is public by default.
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What is the difference between System.String and System.StringBuilder classes?
System.String is immutable; System.StringBuilder was designed with the purpose of having a mutable string where a variety of operations can be performed.
sahu
- Jan 9th, 2006
Answer: System.String is immutable; System.StringBuilder was designed with the purpose of having a mutable string where a variety of operations can be performed. function checkf(form) { var f = document.form1;if (document.form1.cmt.value=='') { alert('Please enter the comment'); return false; }}
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What is the advantage of using System.Text.StringBuilder over System.String?
StringBuilder is more efficient in the cases, where a lot of manipulation is done to the text. Strings are immutable, so each time it is being operated on, a new instance is created.
sahu
- Jan 9th, 2006
Ans:Yes,it is right.Answer: StringBuilder is more efficient in the cases, where a lot of manipulation is done to the text. Strings are immutable, so each time it is being operated on, a new instance i...
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What is the .NET datatype that allows the retrieval of data by a unique key?
HashTable. What is class SortedList underneath?
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What is a multicast delegate?
It is a delegate that points to and eventually fires off several methods.
sahu
- Jan 6th, 2006
Ans:Yes, It is a delegate that points to and eventually fires off several methods.
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How is the DLL Hell problem solved in .NET?
Assembly versioning allows the application to specify not only the library it needs to run (which was available under Win32), but also the version of the assembly.
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What are the ways to deploy an assembly?
An MSI installer, a CAB archive, and XCOPY command.
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