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• database datatype size

  - by yeeen

  Just to clarify by specifying sth like VARCHAR(45) means it can take up to max 45 characters? I rmb I heard from someone a few years ago that the number in the parathesis doesn't refer to the no of characters, then the person tried to explain to me sth quite complicated which i don't understand n forgot alr. And what is the difference btn CHAR and VARCHAR? I did search ard a bit and see that CHAR gives u the max of the size of the column and it is better to use it if ur data has a fix size and use VARCHAR if ur data size varies. But if it gives u the max of the size of the column of all the data of this col, isn't it better to use it when ur data size varies? Esp if u don't know how big is ur data size gg to be. VARCHAR needs to specify the size (CHAR don't really need right?), isn't it more troublesome?

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• C# Microsoft.DirectX.AudioVideoPlayback.Video reference?

  - by yeeen

  What reference do I have to add to use "Microsoft.DirectX.AudioVideoPlayback.Video"? It is not recognized currently.

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• Opening a new window in WPF withoug using .show()?

  - by yeeen

  It seems to be possible in this project... After they use "pd = new ProgressDialog();", the new window appears. How did they do that?

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• C# Simple Event Handler for Setting Alarm

  - by yeeen

  Why does the following line "alarm.AlarmEvent += new AlarmEventHandler(alarm_Sound);" gives me "An object reference is required for the non-static field, method, or property 'AlarmClock.Alarm.alarm_Sound(object, System.EventArgs)'" public static void Main(string[] args) { Alarm alarm = new Alarm(new DateTime(2010, 4, 7, 23, 2, 0)); alarm.Set(); alarm.AlarmEvent += new AlarmEventHandler(alarm_Sound); } Full source code here: Program.cs AlarmEventArgs

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• How do I get the duration of a video file using C#?

  - by yeeen

  Any library in C# that allows me to do that?

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• How to create videos which animate as u draw/write?

  - by yeeen

  An example is here: http://www.youtube.com/watch?v=rDu2A3WzQpo

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• What is the max LINQ Expression Trees can do?

  - by yeeen

  What is the maximun that LINQ expression Tree can do? Can it define a class? How about a method, with all the declared name, modifiers, parametertype and return type? Must the program always define the tree himself? Is it possible to generate the tree from a given C# file? Where can I get resources to learn about writing basic to advanced Expression Tree and Expression Tree Visitor? (articles and videos will be great) Thanks for those who are able to help...

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• What are some of the popular softwares developed in .NET languages?

  - by yeeen

  I am refering to softwares developed in .NET languages.

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• How has .NET languages contributed to the software industry based on the applications built on them?

  - by yeeen

  That is, what are some software applications developed in .NET languages, especially using C# and VB.NET? Are there any popular or commerical ones?

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• What are some of the popular softwares developed in .NET languages?

  - by yeeen

  What are some of the popular softwares developed in .NET languages? Especially C# and Visual Basic. But .NET languages are only C#, Visual Basic and F# right? Is C++ counted? What other languages are .NET? Thanks.

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• How do I search for a list of files using wildcard and C#

  - by yeeen

  How do I use wildcards in C# to list down files contained in a selected folder?

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• [C# n MySQL] Creating a database using Connector/NET Programming?

  - by yeeen

  How to create a database using connector/net programming? How come the following doesn't work? string connStr = "server=localhost;user=root;port=3306;password=mysql;"; MySqlConnection conn = new MySqlConnection(connStr); MySqlCommand cmd; string s0; try { conn.Open(); s0 = "CREATE DATABASE IF NOT EXISTS `hello`;"; cmd = new MySqlCommand(s0, conn); conn.Close(); } catch (Exception e) { Console.WriteLine(e.ToString()); }

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• How do I search for a list of files using wildcard

  - by yeeen

  How do I use wildcards in C# to list down files contained in a selected folder?

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