Solved

Filtering an XML file by product name, displaying results in a datalist

Posted on 2013-12-01
2
232 Views
Last Modified: 2013-12-04
I am working in ASP.Net (vb) with a client's XML file (reduced from 319 entries to 3):

 
<?xml version= "1.0"?>
<products>
	<product id="001">
		<division>Division1</division>
		<name>AName</name>
		<model>Model1</model>
		<category></category>
		<datathumbURL>image.jpg</datathumbURL>
		<datasheetURL>document.pdf</datasheetURL>
		<thumbURL>image.png</thumbURL>
		<fullImageURL></fullImageURL>
		<description>Many, many words here</description>
		<contactSnail>address, city, state, zip</contactSnail>
		<contactDigits>phone</contactDigits>
		<contactWebsite>URL</contactWebsite>
	</product>
	<product id="002">
		<division>Division2</division>
		<name>BName</name>
		<model>Model2</model>
		<category></category>
		<datathumbURL>image.jpg</datathumbURL>
		<datasheetURL>document.pdf</datasheetURL>
		<thumbURL>image.png</thumbURL>
		<fullImageURL></fullImageURL>
		<description>many, many words here</description>
		<contactSnail>address, city, state, zip</contactSnail>
		<contactDigits>phone</contactDigits>
		<contactWebsite>URL</contactWebsite>
	</product>
	<product id="003">
		<division>Division3</division>
		<name>CName</name>
		<model>Model3</model>
		<category></category>
		<datathumbURL>image.jpg</datathumbURL>
		<datasheetURL>document.pdf</datasheetURL>
		<thumbURL>image.png</thumbURL>
		<fullImageURL></fullImageURL>
		<description>man, many words here</description>
		<contactSnail>address, city, state, zip</contactSnail>
		<contactDigits>phone</contactDigits>
		<contactWebsite>URL</contactWebsite>
	</product>
</products>

Open in new window


... and have created the sort and display code which works as expected (sorting the list of 319 products by name, division or model):

<script runat="server">
	Sub Page_Load

		dim dsProducts = New DataSet
		dsProducts.ReadXml(MapPath("products.xml"))
		
		Dim sid As String
		sid = Request.QueryString("sid")	
			
		If String.IsNullOrEmpty(Request.QueryString("sid")) Then
			dsProducts.Tables(0).DefaultView.Sort = "name, division, model ASC"			
		Elseif sid = "div" Then
			dsProducts.Tables(0).DefaultView.Sort = "division, name, model ASC"
		Elseif sid = "mod" Then
			dsProducts.Tables(0).DefaultView.Sort = "model, name, division ASC"	
		End If
	
		Dim dsProductsSort = dsProducts.Tables(0).DefaultView.ToTable()
		dlProducts.DataSource = dsProductsSort
		dlProducts.DataBind()
	End sub
</script>

<asp:DataList id="dlProducts" runat="server">
	<ItemTemplate>
		<a href="products-details.aspx?id=<%#Container.DataItem("id")%>" style="color:blue"> <%#Container.DataItem("name")%> | <%#Container.DataItem("model")%></a> | <%#Container.DataItem("division")%> 
	</ItemTemplate>
</asp:DataList>

Open in new window


The client would now like a page that will allow clicking on a letter of the alphabet (A - B - C, etc...) to see a list of product names beginning with that letter.  In the example XML code these are listed as AName, BName and CName.

Ideally, the results would be shown in the same datalist included above.

Easy enough to do using a database - I can't seem to wrap my ahead around making it work using an XML file as the datasource.  Shuffling fields in the XML file is an option if required.

Help?
0
Comment
Question by:henryroark
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 
LVL 52

Accepted Solution

by:
Carl Tawn earned 500 total points
ID: 39689492
You should be able to add a RowFilter to the view based on the letter selected:
Dim filterLetter As String = "A"

...

If String.IsNullOrEmpty(Request.QueryString("sid")) Then
    dsProducts.Tables(0).DefaultView.Sort = "name, division, model ASC"
    dsProducts.Tables(0).DefaultView.RowFilter = "name like '" & filterLetter & "%'"
    ...
End If

Open in new window

0
 

Author Closing Comment

by:henryroark
ID: 39696268
Simple and perfect, thank you.  I had it in mind that it would be a complicated matter.  Knowing about .RowFilter opens up a lot of possibilities.
0

Featured Post

Stack Overflow Podcast - Frustrating Miracles

In this podcast, Stack Overflow interviewed Linux Academy CEO/Founder, Anthony James, and got his developer story!

"Follow your passion, be prepared to work hard and sacrifice, and, above all, don't let anyone limit your dreams."  - Donovan Bailey

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

More often than not, we developers are confronted with a need: a need to make some kind of magic happen via code. Whether it is for a client, for the boss, or for our own personal projects, the need must be satisfied. Most of the time, the Framework…
A long time ago (May 2011), I have written an article showing you how to create a DLL using Visual Studio 2005 to be hosted in SQL Server 2005. That was valid at that time and it is still valid if you are still using these versions. You can still re…
Michael from AdRem Software explains how to view the most utilized and worst performing nodes in your network, by accessing the Top Charts view in NetCrunch network monitor (https://www.adremsoft.com/). Top Charts is a view in which you can set seve…
This tutorial will teach you the special effect of super speed similar to the fictional character Wally West aka "The Flash" After Shake : http://www.videocopilot.net/presets/after_shake/ All lightning effects with instructions : http://www.mediaf…

630 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question