Getting File size in .net 2.0
Code to get size of a file in bytes
Public Shared Function getFileSize(ByVal Filename as string) as Integer return IO.File.ReadAllBytes(Filename).Length End Function
I got some additional comments from my friend, Prasanth, to Get the File Version, using the System.Diagnostics namespace.
System.Diagnostics.FileVersionInfo.GetVersionInfo(FileName.ToString).FileVersion.ToString
Thanks to Prasanth.
Generics in C# 2.0
Generics refer to classes and methods that work uniformly on values of different types. Generics allow you to define type-safe classes without compromising type safety, performance, or productivity. You implement the server only once as a generic server, while at the same time you can declare and use it with any type. To do that, use the < and > brackets, enclosing a generic type parameter.
Here is some sample implementation. It is Generic Stack class already available in System.Collections.Generic
public class Stack<T>
{
T[] items;
int currentIndex = 0;
public Stack(int size)
{
items = new T[size];
}
public void Push(T item)
{
this.items[currentIndex] = item;
this.currentIndex++;
}
public T Pop()
{
if (this.currentIndex < 0)
{
throw new IndexOutOfRangeException();
}
return this.items[this.currentIndex];
}
}
And you can use the stack like this.
Stack<int> stack = new Stack<int>(10); stack.Push(100); int number = stack.Pop();
For more information check this URL :
http://msdn2.microsoft.com/en-us/library/ms379564(VS.80).aspx
Regular expression to remove HTML tags in VB.Net
Some time we may need to strip all the HTML tags from HTML files, like if we are doing some web scrapping. Here is simple Regular expression which will remove all the HTML Tags.
Public Sub RemoveHTMLTags(ByVal expression as string) as string Dim pattern As String = "<(.|\n)*?>;" Return System.Text.RegularExpressions.Regex.Replace(strHtmlString, pattern, String.Empty).Trim() End Sub
Font Enumeration in VB.Net
If you are developing some editors is .Net, you have to list all the Fonts in you system in a Font Combo. Here is a simple code snippet which will display all the Windows Font in a Dropdown list.
For Each MyFont As FontFamily In System.Drawing.FontFamily.Families Dropdownlist.Items.Add(MyFont.Name) Next
It is in C#
foreach (FontFamily item in System.Drawing.FontFamily.Families)
{
this.comboBox1.Items.Add(item.Name);
}
Here is an Update. You can render the Dropdown such way that is will display all the font name, in the Font.
ComboBox lst = (ComboBox)sender; e.DrawBackground(); Font font = new Font(lst.Items[e.Index].ToString(), 12); e.Graphics.DrawString(lst.Items[e.Index].ToString(), font, Brushes.Black, e.Bounds, StringFormat.GenericDefault); e.DrawFocusRectangle();
You need to write this code in the DrawItem event of the Combo box. Also you need to change the DrawMode property of the Combo box.