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June 2007 - Posts - Wortzel's blog

Wortzel's blog

.Net (2.0, 3.0, 3.5), C#, Asp.net, Com+, GIS(ESRI Software), Management, Analysis & Design, Life, Trips, And more...

June 2007 - Posts

How to declare a javascript file as an embedded resource in assembly

There are many scenarios it is recommended to use an embedded resource which is part of the assembly. One of the common cases is having a custom control with custom script file and wanting to ship them in a close assembly to other projects. Thanks to deployments reasons we prefer to ship only the assembly without the other resource files. There is a simple approach to do it in .Net 2.0.

Ok, what do we have to do in order to accomplish this task?

Assumptions:

- We have a custom control which is called "AlertButton"(Inherit from the Button class).

- This control use javascript file which is called "alertUtils.js".

- The control is complied into "MyCustomControls.dll" assembly.

Tasks:

1. Define the javascript file as Embedded resource after the build action event:

 

 

2. Add a WebResource definition to the AssemblyInfo.

[assembly: System.Web.UI.WebResource([FileName], [ResourceType])]

For example:

[assembly: System.Web.UI.WebResource("MyCustomControls.alertUtils.js", "application/x-javascript")]

3. Then register this web resource in your web control:

[ToolboxData("<{0}:MyCustomControl runat=server></{0}:MyCustomControl>")]

public class MyCustomControl : Button

{

   protected override void OnInit(EventArgs e)

   {

      base.OnInit(e);

 

      // For pages with ajax extension   

      ScriptManager.GetCurrent(Page).Scripts.Add(new ScriptReference

         ("MyCustomControls.alertUtils.js", " MyCustomControls"));

         

      // For pages without ajax extension

      Page.ClientScript.RegisterClientScriptInclude(

         this.GetType(), "JavaScriptFileKey",

         Page.ClientScript.GetWebResourceUrl(this.GetType(),

         "MyCustomControls.alertUtils.js"));

   }

}           

4. And that is all!

Posted Wednesday, June 13, 2007 8:34 PM by Avi Wortzel | 4 comment(s)

תגים:, ,

Export to PDF open source framework

On my last project I had a mission to find an appropriate framework for exporting some images and text to a Pdf file format.

The basic guidelines that lead me were:

-         This framework should be developed under the .Net framework.

-         It must be an open source code and not just black box.

-         The export to a Pdf process shouldn't affect the exported image quality.

-         The framework will be easily to use.

After searching over the net I found the solution => The ITextSharp framework answers all my requirements.

ITextSharp is a .Net open source libraries that allows you to generate a Pdf file in run time. I added a basic example for working with this framework:

public static void ExportToPdfFile(string )
{
   // step 1: creation of a document-object
   Document document = new Document();

   // step 2:
   // we create a writer that listens to the document
   // and directs a PDF-stream to a file
   PdfWriter.getInstance(document, new FileStream("MyPdfFile.pdf", FileMode.Create));

   // step 3: we open the document
   document.Open();

   Image jpeg = Image.getInstance(new Uri
("http://itextsharp.sourceforge.net/examples/myKids.jpg"));

   // step 4: we add the image to the document
   document.Add(jpeg);

   // step 5: we close the document
   document.Close();
}

Defiantly, it's a powerful framework that allows you to export almost everything to a Pdf file.

Posted Wednesday, June 13, 2007 7:21 AM by Avi Wortzel | with no comments

Sql injection Presentation
On my last semester, I took a course of "secure communication's networks" (By Professor Amir Herzberg). Among the topics we discussed, Professor Herzberg taught about vulnerability of security over the net. When we started to discuss the "Sql injection" subject he asked me to lecture about this subject in front of the class. You can download my short presentation about "SQL Injection Attack" from the following link.

Posted Tuesday, June 12, 2007 7:24 PM by Avi Wortzel | with no comments