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The "#" custom format specifier works as a digit-placeholder symbol.If the value to be formatted has a digit in the position where the "#" symbol appears in the format string, then that digit is copied to the resultant string.We have set a double type here.double d; d = 4.2;Now, let us use the “#” custom specifier.d.ToString("#.##", CultureInfo.InvariantCulture)Here are other examples.Example Live Demousing System; using System.Globalization; class Demo { static void Main() { double d; d = 4.2; Console.WriteLine(d.ToString("#.##", CultureInfo.InvariantCulture)); Console.WriteLine(String.Format(CultureInfo.InvariantCulture, "{0:#.##}", d)); d = 345; ... Read More
The exception thrown when a null reference is passed to a method that does not accept it as a valid argument.Let us see an example.When we set a null parameter to int.Parse() method, then ArgumentNullException is thrown as shown below −Exampleusing System; class Demo { static void Main() { string val = null; int res = int.Parse(val); // error is thrown } }OutputThe following error is thrown when the above program is compiled since we have passed a null value.Unhandled Exception: System.ArgumentNullException: Value cannot be null.
To convert an Int32 value to a decimal, use the Convert.ToDecimal() method.Int32 represents a 32-bit signed integer.Let’s say the following is our Int32 value.int val = 2923;Now to convert it to decimal.decimal decVal = Convert.ToDecimal(val);Let us see the complete example.Example Live Demousing System; public class Demo { public static void Main() { int val = 2923; decimal decVal = Convert.ToDecimal(val); Console.WriteLine("Converted Int32 {0} to decimal {1:N2} value ", val, decVal); } }OutputConverted Int32 2923 to decimal 2,923.00 value
To convert a Byte value to an Int32 value, use the Convert.ToInt32() method.Int32 represents a 32-bit signed integer.Let’s say the following is our Byte value.byte val = Byte.MaxValue;;Now to convert it to Int32.int intVal = Convert.ToInt32(val);Let us see the complete example.Example Live Demousing System; public class Demo { public static void Main() { byte val = Byte.MaxValue;; int intVal = Convert.ToInt32(val); Console.WriteLine("Converted byte {0} to Int32 {1} value ", val, intVal); } }OutputConverted byte 255 to Int32 255 value
To convert a Double value to an Int64 value, use the Convert.ToInt64() method.Int64 represents a 64-bit signed integer.Let’s say the following is our double value.double val = 23.951213e12;Now to convert it to Int64.long longVal = Convert.ToInt64(val);Let us see the complete example.Example Live Demousing System; public class Demo { public static void Main() { double val = 23.951213e12; long longVal = Convert.ToInt64(val); Console.WriteLine("Converted double {0:E} to Int64 {1:N0} value ", val, longVal); } }OutputConverted double 2.395121E+013 to Int64 23,951,213,000,000 value
Your server sends some data to the visitor's browser in the form of a cookie. The browser may accept the cookie. If it does, it is stored as a plain text record on the visitor's hard drive. Now, when the visitor arrives at another page on your site, the browser sends the same cookie to the server for retrieval. Once retrieved, your server knows/remembers what was stored earlier.Cookies are a plain text data record of 5 variable-length fields −Expires − The date the cookie will expire. If this is blank, the cookie will expire when the visitor quits the browser.Domain − The ... Read More
The Any method checks whether any of the element in a sequence satisfy a specific condition or not.If any element satisfy the condition, true is returned.Let us see an example.int[] arr = {5, 7, 10, 12, 15, 18, 20};Now, using Any() method, we will check whether any of the element in the above array is greater than 10 or not.arr.AsQueryable().All(val => val > 5);If any of the element satisfies the condition, then True is returned.Let us see the complete example.Example Live Demousing System; using System.Linq; class Demo { static void Main() { int[] arr = {5, 7, ... Read More
To convert a Double value to an integer value, use the Convert.ToInt32() method.Int32 represents a 32-bit signed integer.Let’s say the following is our double value.double val = 21.34;Now to convert it to Int32.int res = Convert.ToInt32(val);Let us see the complete example.Example Live Demousing System; public class Demo { public static void Main() { double val = 21.34; int res = Convert.ToInt32(val); Console.WriteLine("Converted double {0} to integer {1} ", val, res); } }OutputConverted double 21.34 to integer 21
Byte represents an 8-bit unsigned integer.Implicit conversion of an 8-bit unsigned integer (Byte) to a Decimal is possible. Let us see how.Here’s our Byte value.byte val = 16;To implicitly convert, just assign the value as shown below −decimal dec; dec = val;Let us see the complete example.Example Live Demousing System; public class Demo { public static void Main() { byte val = 16; decimal dec; // implicit dec = val; Console.WriteLine("Decimal ="+dec); } }OutputDecimal =16
Implicit conversion of a 32-bit unsigned integer (UInt) to a Decimal requires you to first declare a UInt.uint val = 342741539;Now to convert it to decimal, just assign the value.decimal dec; // implicit dec = val;Example Live Demousing System; public class Demo { public static void Main() { uint val = 342741539; decimal dec; // implicit dec = val; Console.WriteLine("Decimal = "+dec); } }OutputDecimal = 342741539