Difference between revisions of "OOP Class14"
esse quam videri
m (Text replacement - "</csharp>" to "</syntaxhighlight>") |
m (Text replacement - "syntaxhighlight lang="csharp" line="1" " to "syntaxhighlight lang="csharp"") |
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for | for | ||
− | <syntaxhighlight lang="csharp | + | <syntaxhighlight lang="csharp"> |
long count = 200000000; | long count = 200000000; | ||
short[] shorts = new short[count]; | short[] shorts = new short[count]; | ||
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==Async== | ==Async== | ||
http://msdn.microsoft.com/en-us/library/hh191443.aspx | http://msdn.microsoft.com/en-us/library/hh191443.aspx | ||
− | <syntaxhighlight lang="csharp | + | <syntaxhighlight lang="csharp"> |
private void buttonBlock_Click(object sender, EventArgs e) | private void buttonBlock_Click(object sender, EventArgs e) | ||
{ | { | ||
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===write file=== | ===write file=== | ||
− | <syntaxhighlight lang="csharp | + | <syntaxhighlight lang="csharp"> string fileName = "test.txt"; |
string folderPath = "c:\\user\\"; | string folderPath = "c:\\user\\"; | ||
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===read file=== | ===read file=== | ||
− | <syntaxhighlight lang="csharp | + | <syntaxhighlight lang="csharp"> StreamReader sr = new StreamReader(fs); |
while( sr.Peek() > -1 ) | while( sr.Peek() > -1 ) | ||
{ | { | ||
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===Send Mail=== | ===Send Mail=== | ||
− | <syntaxhighlight lang="csharp | + | <syntaxhighlight lang="csharp"><% @Page Language="C#" %> |
<% @Import Namespace="System.Web.Mail" %> | <% @Import Namespace="System.Web.Mail" %> | ||
<% | <% | ||
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multipart form | multipart form | ||
− | <syntaxhighlight lang="csharp | + | <syntaxhighlight lang="csharp"> |
<form enctype="multipart/form-data" runat="server"> | <form enctype="multipart/form-data" runat="server"> | ||
<tr> | <tr> | ||
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Parse the multipart form and save the file msdn library. System.Web.HtmlInputFile.PostedFile Property | Parse the multipart form and save the file msdn library. System.Web.HtmlInputFile.PostedFile Property | ||
− | <syntaxhighlight lang="csharp | + | <syntaxhighlight lang="csharp"> |
void btnUploadTheFile_Click(object Source, EventArgs evArgs) | void btnUploadTheFile_Click(object Source, EventArgs evArgs) | ||
{ | { |
Revision as of 03:23, 9 February 2016
Parallel
http://msdn.microsoft.com/en-us/library/dd460713(v=vs.110).aspx
samples: http://code.msdn.microsoft.com/windowsdesktop/Samples-for-Parallel-b4b76364
for
long count = 200000000;
short[] shorts = new short[count];
for (long i = 0; i < count; i++)
{
shorts[i] = 1;
}
</pre>
Parallel.For
<pre>
short[] shortsP = new short[count];
Parallel.For(0, count, i =>
{
shortsP[i] = 1;
});
Demo
http://iam.colum.edu/oop/classsource/class15/AsyncConsoleApplication.zip
http://iam.colum.edu/oop/classsource/class15/WindowsFormsApplicationAsync.zip
Async
http://msdn.microsoft.com/en-us/library/hh191443.aspx
private void buttonBlock_Click(object sender, EventArgs e)
{
textBox1.Text = DoLongCount();
}
//Async call to async method
private async void buttonAsync_Click(object sender, EventArgs e)
{
textBox1.Text = await DoLongAsyncCount();
}
private string DoLongCount()
{
System.Threading.Thread.Sleep(1000);
Count++;
return "count is " + Count;
}
//Async Task
private async Task<string> DoLongAsyncCount()
{
await Task.Delay(1000);
Count++;
return "count is " + Count;
}
Final Review
- Be very familiar with c# syntax
- Basic object types (int, bool, string)
- Conditional and Branching statements
- Arrays and Generics ie List
- Understand Classes and Inheritance.
- Use some advanced class features such as abstract classes and virtual methods that are overridden
- Understand class relationships
- Is A
- Has A
- Uses A
- Understand Encapsulation, Abstraction and Polymorphism
- Abstraction
- Each class should abstract its behavior in order to increase usability, reuse, and organization.
- Encapsulation
- Each class should contain all of the properties and methods it needs. It should only expose what is necessary to outside classes.
- Polymorphism
- many forms, same code interface but interchangeable classes
- Be able to read and create UML Diagrams
- Be able to recognize and use simple design patters
The final will be consist of two sections the writtens section and the practical section. The practical section will be open everything excpet open mouth (yes open note open book open web). You will not be ablt to use any of theese resources during the written section.