Wednesday, July 30, 2008

Expression Blend WPF Tutorial

Expression Blend WPF Tutorial

1. Overview

2. The User Interface

3. Creating and Importing Assets

4. Using WPF Controls

5. Animating in Blend

6. Data Binding

7. Building a Flickr Browser

8. Other Resources


Thursday, July 24, 2008

URL Rewriting with URLRewriter.Net Simplest Way

URL Rewriting with URLRewriter.Net

URL Rewriting has lots of benefits, listing its main benefits

  • SEO Friendly URL
  • Secured URL
  • No need to change bookmark with change in site structure.

Before URL Rewriting my URL looks like
http://localhost:2661/URLRewrite2/DynamicPage.aspx?MyTitleId=1

After URL Rewriting URL is changed to

http://localhost:2661/URLRewrite2/Article/Asp-Net-website-paths-1.aspx


Lets Understand URL Rewriting with Simple Example

A Website displaying articles list in a gridview on clicking the article link, it will display dynamically generated article content.

Before URL Rewriting when you mouse-over 1st Article Link, "Asp.net Website Path" it uses query string to display the article content.


Dynamic page display Querysting, before URL Rewriting.



After URL Rewriting we will achieve how SEO Friendly URL is used to display article content.


Now, lets understand how we can achieve it.

For URL Rewriting we are using URLRewriter.Net which is available free. Download URLRewriter.Net

Step-by-Step Explanation

Step 1: Download Binary Files for URLRewriter.Net

Step 2: Add Reference to Binary Files, Right click project "Add Reference" and add binary files.


Step 3: Update Web.Config File to make URLRewriter.Net works.
<configuration>

<configSections>
<section name="rewriter"
requirePermission="false"
type="Intelligencia.UrlRewriter.Configuration.RewriterConfigurationSectionHandler, Intelligencia.UrlRewriter" />
</configSections>

<system.web>

<httpModules>
<add name="UrlRewriter" type="Intelligencia.UrlRewriter.RewriterHttpModule, Intelligencia.UrlRewriter" />
</httpModules>

</system.web>

<system.webServer>

<modules runAllManagedModulesForAllRequests="true">
<add name="UrlRewriter" type="Intelligencia.UrlRewriter.RewriterHttpModule" />
</modules>

<validation validateIntegratedModeConfiguration="false" />

</system.webServer>

<rewriter>
<rewrite url="~/Article/(.+)-(.+).aspx" to="~/DynamicPage.aspx?MyTitleId=$2"/>
</rewriter>

</configuration>


Step 4: Adding Function to Generate SEO Friendly URL from given Title


public static string GenerateURL(object Title, object strId)
{
string strTitle = Title.ToString();

#region Generate SEO Friendly URL based on Title
//Trim Start and End Spaces.
strTitle = strTitle.Trim();

//Trim "-" Hyphen
strTitle = strTitle.Trim('-');

strTitle = strTitle.ToLower();
char[] chars = @"$%#@!*?;:~`+=()[]{}|\'<>,/^&"".".ToCharArray();
strTitle = strTitle.Replace("c#", "C-Sharp");
strTitle = strTitle.Replace("vb.net", "VB-Net");
strTitle = strTitle.Replace("asp.net", "Asp-Net");

//Replace . with - hyphen
strTitle = strTitle.Replace(".", "-");

//Replace Special-Characters
for (int i = 0; i < chars.Length; i++)
{
string strChar = chars.GetValue(i).ToString();
if (strTitle.Contains(strChar))
{
strTitle = strTitle.Replace(strChar, string.Empty);
}
}

//Replace all spaces with one "-" hyphen
strTitle = strTitle.Replace(" ", "-");

//Replace multiple "-" hyphen with single "-" hyphen.
strTitle = strTitle.Replace("--", "-");
strTitle = strTitle.Replace("---", "-");
strTitle = strTitle.Replace("----", "-");
strTitle = strTitle.Replace("-----", "-");
strTitle = strTitle.Replace("----", "-");
strTitle = strTitle.Replace("---", "-");
strTitle = strTitle.Replace("--", "-");

//Run the code again...
//Trim Start and End Spaces.
strTitle = strTitle.Trim();

//Trim "-" Hyphen
strTitle = strTitle.Trim('-');
#endregion

//Append ID at the end of SEO Friendly URL
strTitle = "~/Article/" + strTitle + "-" + strId + ".aspx";

return strTitle;
}


Step 5: Changing DataBinder.Eval Function in .Aspx Page to reflect changes in URL of Grid.
Note: Learn more about DataBinder.Eval Function



<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" BackColor="#DEBA84" BorderColor="#DEBA84" BorderStyle="None" BorderWidth="1px" CellPadding="3" CellSpacing="2" Width="788px">
<FooterStyle BackColor="#F7DFB5" ForeColor="#8C4510" />
<Columns>
<asp:TemplateField HeaderText="Title">
<ItemTemplate>
<asp:HyperLink ID="hlTitle" runat="server" Text='<%#DataBinder.Eval(Container.DataItem,"Title")%>' NavigateUrl='<%#GenerateURL(DataBinder.Eval(Container.DataItem,"Title"),DataBinder.Eval(Container.DataItem,"Id"))%>'></asp:HyperLink>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Description">
<ItemTemplate>
<asp:Label ID="lblDesc" runat="server" Text='<%#DataBinder.Eval(Container.DataItem,"Description")%>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
</Columns>
<RowStyle BackColor="#FFF7E7" ForeColor="#8C4510" />
<SelectedRowStyle BackColor="#738A9C" Font-Bold="True" ForeColor="White" />
<PagerStyle ForeColor="#8C4510" HorizontalAlign="Center" />
<HeaderStyle BackColor="#A55129" Font-Bold="True" ForeColor="White" />
</asp:GridView>


Now, Lets Check the stuff so far developed.

Assigning SEO Friendly URL in to grid.


On clicking URL inside grid it will point to Dynamically Generated Page with SEO Friendly URL, rather than QueryString.


Things to consider while URL Rewriting.

Problem 1: Page Postback, will turns User Friendly URL into Original URL.
Problem 2: CSS, Image Files pointing to URL Rewriting Page won't work, as they might be pointing with absolute path.

Problem 1: Page Postback for Page displaying URL Rewritten URL
Page Postback of Page displaying User friendly URL will turns into original state when same page postback occurs. In our example, I am adding one button and trying to make Page Postback. You will notice that Page Postback will turns the User Friendly URL into original URL containing QueryString.


For Resolving Page PostBack problem for Page displaying URL Rewritten URL

This article is inspired from Scott's URL Rewritten article. Adding two files as mentioned by scott. If you are developing code in VB download files from Scott's article, else for C# download files with Sourcecode at the end of this article.



Now, lets test the Page Postback by clicking on Button, you will notice this time, URL remains the same.




Problem 2: Image Display Problem
Now, lets display image on for this page and lets observe what problem we may run into. I have added following line to display image, but it won't works.

<img src="Images/article.gif" />


Resolve Problem, by refrencing file from root.
<img src="../Images/article.gif" />



Download Source-Code for URL Rewriting

Wednesday, July 23, 2008

Generate URL - SEO Friendly Asp.net

Generate SEO Friendly URL from given string in C# for Asp.net Web Application.

Example 1: Simple Test

  • Input: CSS is not working in IE? but working in FireFox... asp.net problem
  • Output: css-is-not-working-in-ie-but-working-in-firefox-Asp-Net-problem

Example 2:
Spaces Testing
  • Input: asp.net problem url re-writing.... testing the basics
  • Output: Untitled PageUntitled PageAsp-Net-problem-url-re-writing-testing-the-basics

Untitled PageExample 3: Special Character Testing
  • Input: 23 asp.net problem ### url re-writing.... testing the basics will pay $1000
  • Output: Untitled PageUntitled PageUntitled Page23-Asp-Net-problem-url-re-writing-testing-the-basics-will-pay-1000


private string GenerateURL(string strTitle)
{
//Trim Start and End Spaces.
strTitle = strTitle.Trim();

//Trim "-" Hyphen
strTitle = strTitle.Trim('-');

strTitle = strTitle.ToLower();
char[] chars = @"$%#@!*?;:~`+=()[]{}|\'<>,/^&"".".ToCharArray();
strTitle = strTitle.Replace("c#", "C-Sharp");
strTitle = strTitle.Replace("vb.net", "VB-Net");
strTitle = strTitle.Replace("asp.net", "Asp-Net");

//Replace . with - hyphen
strTitle = strTitle.Replace(".", "-");

//Replace Special-Characters
for (int i = 0; i < chars.Length; i++)
{
string strChar = chars.GetValue(i).ToString();
if (strTitle.Contains(strChar))
{
strTitle = strTitle.Replace(strChar,string.Empty);
}
}

//Replace all spaces with one "-" hyphen
strTitle = strTitle.Replace(" ", "-");

//Replace multiple "-" hyphen with single "-" hyphen.
strTitle = strTitle.Replace("--", "-");
strTitle = strTitle.Replace("---", "-");
strTitle = strTitle.Replace("----", "-");
strTitle = strTitle.Replace("-----", "-");
strTitle = strTitle.Replace("----", "-");
strTitle = strTitle.Replace("---", "-");
strTitle = strTitle.Replace("--", "-");

//Run the code again...
//Trim Start and End Spaces.
strTitle = strTitle.Trim();

//Trim "-" Hyphen
strTitle = strTitle.Trim('-');

return strTitle;
}

Tuesday, July 22, 2008

Regular Expression Tester

Test your Regular Expression with Regular Expression Tester. Checking your .net regular expression would be easy with Regular Expression Tester.

Regular Expression Tester

Sunday, July 06, 2008

Free Web Services in .Net

List of Free Web Services in .Net, this are some basic utility web services.

New to web service and want to know how you can use web service with your .Net Code

IIS 7 Tutorial

IIS 7.0 Easy Tutorial

Start up article on IIS 7 Part 1

  • Introduction to IIS 7
  • Overview of Architecture
  • Request Processing Pipeline
  • Overview of Application Pool
  • Creating Websites with IIS 7
  • Creating IIS Application

Start up article on IIS 7 Part 2

  • IIS 7 Configuration
  • Inheriting and overriding asp.net configuration
  • Feature Delegation

Wednesday, July 02, 2008

Asp.Net Developer Salaries-Best JOB Search Engine

Indeed.com a good website to find

  • Salaries for IT employee
  • Current Market Trend for adopting New Technology (Finding which Technology is Hot in market)
  • Adding Salary Comparision and making decision.
  • Best JOB Search Engine

A Comparision research from Indeed.com
Salary of Moss Developer In New York, Ny 10001
$112,000


Salary of Asp.net Developer In New York, Ny 10001
$99,000

Salary of C# Developer In New York, Ny 10001
$104,000

Salary of Wcf In New York, Ny 10001
$111,000

So now search jobs on Best Job Search Engine that which Technology is hot in market and which technology can earn you more. Which Technology others are adopting... I feel asp.net is loosing its charm due to high avaibility!!! But it is most stable technology based on number of jobs available.

I found Indeed.com is good search engine to get update on IT Market, rather than relying on News especially which are more general.

Most Recent Post

Community Updates

Subscribe Blog via Email

Enter your email address:



Disclaimers:We have tried hard to provide accurate information, as a user, you agree that you bear sole responsibility for your own decisions to use any programs, documents, source code, tips, articles or any other information provided on this Blog.
Page copy protected against web site content infringement by Copyscape