Difference between revisions of "OOP Class14"

esse quam videri
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[[Category:OOP]]
 
[[Category:OOP]]
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 +
==Exta Sruff==
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 +
===Send Mail===
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<csharp><% @Page Language="C#" %>
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<% @Import Namespace="System.Web.Mail" %>
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<%
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    //set up some strings for the email
 +
   
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    string strTo = "only_a_test@fastmail.fm";
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    string strFrom = "jeff@interactive.colum.edu";
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    string strSubject = "Hi jeff";
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    string strBody = "A real nice body text here";
 +
   
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    //Send email
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    SmtpMail.SmtpServer = "localhost";
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    SmtpMail.Send(strFrom, strTo, strSubject, strBody);
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%></csharp>
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http://iam.colum.edu/oop/classsource/class14/mail.aspx
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[[http://iam.colum.edu/oop/gbrowser.php?file=/classsource/class14/mail.aspx -source]]
 +
 +
===Upload a File===
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http uploader
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Add executionTimeout and maxRequestLength to the web.config so that large uploads will not fail.
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<xml>
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<configuration>
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    <system.web>
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        <!--
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        httpRuntime Attributes:
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            executionTimeout="[seconds]" - time in seconds before request is automatically timed out
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            maxRequestLength="[KBytes]" - KBytes size of maximum request length to accept
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            useFullyQualifiedRedirectUrl="[true|false]" - Fully qualifiy the URL for client redirects
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            minFreeThreads="[count]" - minimum number of free thread to allow execution of new requests
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            minLocalRequestFreeThreads="[count]" - minimum number of free thread to allow execution of new local requests
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            appRequestQueueLimit="[count]" - maximum number of requests queued for the application
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            enableKernelOutputCache="[true|false]" - enable the http.sys cache on IIS6 and higher - default is true
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            enableVersionHeader="[true|false]" - outputs X-AspNet-Version header with each request
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        -->
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        <httpRuntime
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            executionTimeout="1200"
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            maxRequestLength="65536"
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        />
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    </system.web>
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</configuration>
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</xml>   
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multipart form
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<csharp>
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<form enctype="multipart/form-data" runat="server">
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<tr>
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  <td>Select file to upload:</td>
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  <td>
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  <input id="myfile" type="file" runat="server"></td>
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</tr>
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<tr>
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  <td>
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  <input type=button id="btnUploadTheFile" value="Upload"
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        OnServerClick="btnUploadTheFile_Click" runat="server" />
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  </td>
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</tr>
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</form>
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</csharp>
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 +
Parse the multipart form and save the file msdn library. System.Web.HtmlInputFile.PostedFile Property
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<csharp>
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void btnUploadTheFile_Click(object Source, EventArgs evArgs)
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{
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    //Path to save file
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    string strBaseLocation = "c:\\infod\\dangerdanger\\upload\\";
 +
   
 +
    if (null != myfile.PostedFile)
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    {
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        // Get the HTTP posted file instance (to simplify the code)
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        HttpPostedFile postedfile = myfile.PostedFile;
 +
       
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        // Get the filename
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        string filename = new System.IO.FileInfo(postedfile.FileName).Name;
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        string filesize = postedfile.ContentLength.ToString();
 +
        try
 +
        {
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            myfile.PostedFile.SaveAs(strBaseLocation+filename);
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            txtOutput.InnerHtml = "File " + strBaseLocation + filename + " uploaded successfully";
 +
        }
 +
        catch (Exception e)
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        {
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                txtOutput.InnerHtml = "Error saving " + strBaseLocation + filename + "
 +
"+ e.ToString();
 +
        }
 +
       
 +
        //Do some other stuff
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        //maybe  like send an email to let admin know file was uploaded
 +
    }
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}
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</csharp>
 +
 +
http://iam.colum.edu/oop/classsource/class14/up.aspx
 +
[[http://iam.colum.edu/oop/gbrowser.php?file=/classsource/class14/up.aspx up.aspx - source]]
 +
[[http://iam.colum.edu/oop/gbrowser.php?file=/classsource/class14/web.config web.config - source]]
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 +
==Final Review==
 +
 +
Be very familar with c# syntax
 +
 +
Understand Classes and inhertance.
 +
 +
Use some advanced class features such as abstract classes and virual methods that are overridden
 +
 +
Understand class relationships
 +
 +
Is A
 +
Has A
 +
Uses A
 +
 +
Be able to read UML Diagrams
 +
 +
  
 
class 14
 
class 14

Revision as of 16:31, 2 May 2006


Exta Sruff

Send Mail

<csharp><% @Page Language="C#" %> <% @Import Namespace="System.Web.Mail" %> <% 

   //set up some strings for the email
   
   string strTo = "only_a_test@fastmail.fm";
   string strFrom = "jeff@interactive.colum.edu";
   string strSubject = "Hi jeff";
   string strBody = "A real nice body text here";
   
   //Send email
   SmtpMail.SmtpServer = "localhost";
   SmtpMail.Send(strFrom, strTo, strSubject, strBody);

%></csharp> http://iam.colum.edu/oop/classsource/class14/mail.aspx [-source]

Upload a File

http uploader

Add executionTimeout and maxRequestLength to the web.config so that large uploads will not fail.

<xml> <configuration> 

   <system.web>
       <httpRuntime
           executionTimeout="1200"
           maxRequestLength="65536"
       />
   </system.web>

</configuration> </xml>

multipart form <csharp> <form enctype="multipart/form-data" runat="server"> <tr> 

 <td>Select file to upload:</td>
 <td>
 <input id="myfile" type="file" runat="server"></td>

</tr> <tr> 

 <td>
 <input type=button id="btnUploadTheFile" value="Upload" 
       OnServerClick="btnUploadTheFile_Click" runat="server" />
 </td>

</tr> </form> </csharp>

Parse the multipart form and save the file msdn library. System.Web.HtmlInputFile.PostedFile Property

<csharp> void btnUploadTheFile_Click(object Source, EventArgs evArgs) { 

   //Path to save file
   string strBaseLocation = "c:\\infod\\dangerdanger\\upload\\";
   
   if (null != myfile.PostedFile) 
   {
       // Get the HTTP posted file instance (to simplify the code) 
       HttpPostedFile postedfile = myfile.PostedFile; 
       
       // Get the filename 
       string filename = new System.IO.FileInfo(postedfile.FileName).Name; 
       string filesize = postedfile.ContentLength.ToString();
       try 
       {
           myfile.PostedFile.SaveAs(strBaseLocation+filename);
           txtOutput.InnerHtml = "File " + strBaseLocation + filename + " uploaded successfully";
       }
       catch (Exception e) 
       {
               txtOutput.InnerHtml = "Error saving " + strBaseLocation + filename + "

"+ e.ToString(); 

       }
       
       //Do some other stuff 
       //maybe  like send an email to let admin know file was uploaded
   }

} </csharp>

http://iam.colum.edu/oop/classsource/class14/up.aspx [up.aspx - source] [web.config - source]

Final Review

Be very familar with c# syntax

Understand Classes and inhertance.

Use some advanced class features such as abstract classes and virual methods that are overridden

Understand class relationships

Is A Has A Uses A

Be able to read UML Diagrams


class 14

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