by Pieter Brinkman
8. July 2009 02:22
In this example I will generate a XML site-map that complies with the sitemap-protocol XML schema.
[code:c#]
//create datasource
List<string> blogPosts = new List<string>{
"http://blog.newguid.net/mypost1.aspx",
"http://blog.newguid.net/mypost_about_Net.aspx",
"http://blog.newguid.net/morePosts.aspx",
"http://blog.newguid.net/andEvenMorePosts.aspx"
};
//Create namespace for sitemap-protocol
XNamespace xmlNS = "http://www.sitemaps.org/schemas/sitemap/0.9";
XDocument xmlDoc =
new XDocument(
new XDeclaration("1.0", "UTF-8", null),
new XElement(xmlNS + "urlset",
from blogPostUrl in blogPosts
select
new XElement(xmlNS + "url",
new XElement(xmlNS + "loc", blogPostUrl))
));
//Show output
Response.Write(xmlDoc);
[/code]
This example will give the following output:
[code:xml]
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"> <url> <loc>http://blog.newguid.net/mypost1.aspx</loc> </url> <url> <loc>http://blog.newguid.net/mypost_about_Net.aspx</loc> </url> <url> <loc>http://blog.newguid.net/morePosts.aspx</loc> </url> <url> <loc>http://blog.newguid.net/andEvenMorePosts.aspx</loc> </url></urlset>
[/code]
To keep the example as simple as possible I only use the LOC element of the URL node. In the real world you can implement the lastmod, changefreq and priority node.
More information about the sitemap-protocol.
by Pieter Brinkman
14. January 2008 13:43
Because every eveloper needs to have a New Guid generator and .Net info search iGoogle widget ;-). It was time for me to create one!
I had no idea where to start, try searching Google no good results. But after clicking along on iGoogle I found the Google Gadgets developer site. After reading some documents and playing with some examples I found out that it is to easy to create a iGoogle widget. Here is a ... step guide to create a iGoogle widget.
In this guide where going to load an external website (http://www.newguid.net/iGoogle_CreateGuid.aspx) in the widget (the most easy way to build a widget).
Step 1:
Go to the Google getting started document and scroll down to the Google Gadgets Editor. Here you can try out some examples or insert your own code.
Step 2:
Insert the following code to the Gadgets Editor
[code:html]
<?xml version="1.0" encoding="UTF-8"?><Module> <ModulePrefs title="[Widget Title]" height="100" author="[Author Name]" author_email="[Author Email]" description = "[Widget Description]" screenshot = "[Link to a Screenshot]" thumbnail = "[Link to a thumbnail]" author_link = "[Link to author website]"><Require feature="dynamic-height"/> </ModulePrefs> <Content type="url" href="http://www.newguid.net/iGoogle_CreateGuid.aspx"/></Module>
[/code]
Press the Preview tab. You will see that the New Guid widget is already working. The widget just loads the website within an Iframe. The best thing is that you only have to design an build your widget once on your own server. It is a normal page so there aren't any design limits.
Step 3:
Save and Publish your widget. You have to change all properties (eg. title, author, author_email, etc.) in de code before you save and publish your widget. After you've changed the properties you can just save and then publish your widget. You can either publish your widget on your webpage (just by linking to it) or publish it into the Google Directory or both.
Publish your gadget in the editor by going to File > Publish. This button is only clickable if your syntax is correct.
Your gadget will be validated before the real publish. Fix all the issues that show in popup (see image below). And retry.
Like I told you to easy. Ofcourse you can do mutch more with it, but this will do for most of your widgets.
by Pieter Brinkman
12. January 2008 12:11
I’ve been using Google Custom Search Engine (CSE) for one of my projects (searchTravelBlog). When I was trying to implement CSE in NewGuid.NET I found some problems doing this.The big issue is that CSE depends on the html FORM element with submit event for posting all the variables from the hiddenfields.
The CSE code from Google looks like this:
[code:html]
<form action="http://" id="searchbox_004900934070880588383:m5qbf6oxe6k">
<input type="hidden" name="cx" value="004900934070880588383:m5qbf6oxe6k" />
<input type="hidden" name="cof" value="FORID:11" />
<input type="text" name="q" size="25" />
<input type="submit" name="sa" value="Search" />
</form>
[/code]
When you copy this code into a .Net page it will not work. This because of the default .Net server form tag.
If you want to use CSE within your .Net page don't use Google's code that generates the search form. Create your own code, just add one Textbox and one Button control to your page.
[code:html]
<asp:TextBox ID="searchQuery" runat="server" size="30" />
<asp:Button runat="server" Text="Search .Net Info" ID="searchButton" OnClick="searchButton_Click" />
[/code]
In the code behind you add the following searchButton_Click event:
[code:c#]
protected void searchButton_Click(object sender, EventArgs e)
{
StringBuilder redirectUrl = new StringBuilder();
//The URL to your resultpage
redirectUrl.Append("./search_netInfo.aspx");
//Add your CSE unique identifier
redirectUrl.Append("?cx=004900934070880588383%3Am5qbf6oxe6k");
//Add your advertising location code
redirectUrl.Append("&cof=FORID%3A11");
//The search query
redirectUrl.Append("&q=" + searchQuery.Text);
//Redirect to the resultpage
Response.Redirect(redirectUrl.ToString());
}
[/code]
You can find these values in the hidden values from the default code that Google creates for you.It is important that the values within the redirectUrl are html encoded.
Add the following code to your Page_PreRender so that the searchquery will appear in the textbox.
[code:c#]
protected void Page_PreRender(object sender, EventArgs e)
{
searchQuery.Text = Request.QueryString["q"];
}
[/code]
Note: This example doesn't include the branding that Google requires. Please read the branding guidelines here!
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