C#

CustomerDS = new DataSet();

XmlDocument xmlDocument = new XmlDocument();
xmlDocument.Load(XML_FILE);

// Load your XML into your DataSet
// ...

// make your changes to your XML file
// ...

xmlDocument.Save(XML_FILE);

Michael Sync wrote:

Why do we need "Implicitly typed local variables" (similar to "var" in JS)? Is it created especially for LINQ?? If LINQ is not used in the application, this kinda variable won't be required anymore, isn't it?

Michael Sync wrote:

Let's say I wrote like that "var myvar = 1;". then, C# compiler will assume my variable "myvar" is int, right? Actually, I declared it as long.. What about "int vs uint", "long vs ulong" and "double vs float vs decimal"??

Michael Sync wrote:

What do you think?

Colin Angus Mackay wrote:

anonymous types.

Skippums wrote:

I see it as being handy when you create a new object of some type using reflection, when you don't know the type beforehand.

Skippums wrote:

public void SomeMethod(object someObject) {
var foo = (someObject.GetType())someObject;
foo.Add(...);
}

Colin Angus Mackay wrote:

I wrote a blog entry on what happens under the hood with anonymous types[^])

Michael Sync wrote:

1. Why do we need "Implicitly typed local variables" (similar to "var" in JS)? Is it created especially for LINQ?? If LINQ is not used in the application, this kinda variable won't be required anymore, isn't it?

Michael Sync wrote:

2. Let's say I wrote like that "var myvar = 1;". then, C# compiler will assume my variable "myvar" is int, right? Actually, I declared it as long.. What about "int vs uint", "long vs ulong" and "double vs float vs decimal"??

var first = 1U; // uint
var answer = 42L; // long
var big = 1234567890UL; // ulong
var pi = 3.1416; // double
var size = 12.5F; // float
var price = 27.99M; // decimal

var b = new System.Web.UI.HtmlControls.HtmlInputRadioButton();

System.Web.UI.HtmlControls.HtmlInputRadioButton b = new System.Web.UI.HtmlControls.HtmlInputRadioButton();

Reddy Prakash wrote:

StreamReader sourceStream = new StreamReader("c://E3764_DetailedLevelDesign.doc");
byte[] fileContents = Encoding.UTF8.GetBytes(sourceStream.ReadToEnd());