в 15:31, 26 мая 2010

2010-05-26T15:31:19Z

Admin: 1 версия

2010-05-26T11:43:23Z

1 версия

Новая страница

==Argument Null Exception==

<source lang="csharp">
using System;
class ArgumentNullTest {
public static void Main() {
String[] s = null;
String sep = " ";
try {
String j = String.Join(sep,s);
}
catch (ArgumentNullException e) {
Console.WriteLine("Error: {0}",e);
}
}
}

</source>

==IndexOutOfRangeException Exception==

<source lang="csharp">
using System;

class MainClass
{
public static void Main()
{
try
{
int [] IntegerArray = new int [5];

IntegerArray[10] = 123;

// wait for user to acknowledge the results
Console.WriteLine("Hit Enter to terminate...");
Console.Read();
}
catch(IndexOutOfRangeException)
{
Console.WriteLine("An invalid element index access was attempted.");
}
}
}

</source>

==InvalidCastException Exception==

<source lang="csharp">
using System;

class MainClass
{
public static void Main()
{
try
{
MainClass MyObject = new MainClass();
IFormattable Formattable;

Formattable = (IFormattable)MyObject;

// wait for user to acknowledge the results
Console.WriteLine("Hit Enter to terminate...");
Console.Read();
}
catch(InvalidCastException)
{
Console.WriteLine("MyObject does not implement the IFormattable interface.");
}
}
}

</source>

==NullReferenceException Exception==

<source lang="csharp">
using System;

class MyClass {
public int Value;
}

class MainClass
{
public static void Main()
{
try
{
MyClass MyObject = new MyClass();
MyObject = null;

MyObject.Value = 123;

// wait for user to acknowledge the results
Console.WriteLine("Hit Enter to terminate...");
Console.Read();
}
catch(NullReferenceException)
{
Console.WriteLine("Cannot reference a null object.");

// wait for user to acknowledge the results
Console.Read();
}
}
}

</source>

==OutOfMemoryException Exception==

<source lang="csharp">

using System;

class MainClass
{
public static void Main()
{
int [] LargeArray;

try
{
LargeArray = new int [2000000000];
}
catch(OutOfMemoryException)
{
Console.WriteLine("The CLR is out of memory.");
}
}
}

</source>

==OverflowException Exception==

<source lang="csharp">
using System;

class MainClass {
public static void Main() {
try {
checked {
int Integer1;
int Integer2;
int Sum;

Integer1 = 2000000000;
Integer2 = 2000000000;
Sum = Integer1 + Integer2;
}
} catch(OverflowException) {
Console.WriteLine("A mathematical operation caused an overflow.");
}
}
}

</source>

==StackOverflowException Exception==

<source lang="csharp">

using System;

class MainClass
{
public static void Main()
{
try
{
Recursive();
}
catch(StackOverflowException)
{
Console.WriteLine("The CLR is out of stack space.");
}
}

public static void Recursive()
{
Recursive();
}
}

</source>

==Throw and Catch an IO exception because the file zxcvb.data doesn"t exist==

<source lang="csharp">
using System.IO;
public class IoError {
public static void Main() {
StreamReader f;
try{
f = new StreamReader("DoesNotExist.data");
}catch(IOException e) {
System.Console.WriteLine(e);
}
f = new StreamReader("DoesNotExist.data");
}
}

</source>

==Throw Argument Out Of Range Exception==

<source lang="csharp">
using System;
using System.Collections;
class Class1 {
static void Main(string[] args) {
try {
// Display the first 200 chars from the connection string
Console.WriteLine("asdf".Substring(1, 200));
}
catch (Exception objE) {
Console.WriteLine(objE.ToString());
}
}
}

</source>

==Throw Index Out Of Range Exception==

<source lang="csharp">
using System;
using System.Collections;
class Class1 {
static void Main(string[] args) {
long[] longException = new long[2];
try {
longException[2] = 5;
}
catch (Exception objE) {
Console.WriteLine(objE.ToString());
}
}
}

</source>

==Throw Invalid Operation Exception==

<source lang="csharp">
using System;
using System.Collections;
public class InvalidOpExample {
public static void Main() {
int[] array = {0,0};
IEnumerator enumerator = array.GetEnumerator();
Console.Write("{0}",enumerator.Current);
}
}

</source>

==Throw Null reference Exception==

<source lang="csharp">
using System;
using System.Collections;
class Class1 {
static void Main(string[] args) {
Exception objException = new Exception();
try {
objException = null;
Console.WriteLine(objException.Message);
} catch (Exception objE) {
Console.WriteLine(objE.ToString());
}
}
}

</source>

← Предыдущая	Версия 15:31, 26 мая 2010
(нет различий)

Csharp/C Sharp/Development Class/Buildin Exceptions - История изменений

в 15:31, 26 мая 2010

Admin: 1 версия