How to access QueryString values with CQWP in MOSS 2007

Question

I need to show some data from library based on querystring passed in URL. I've placed Content query web part on page and trying to access querystring using PageFieldValue but it is not working as it is moss 2007.

Can anybody tell me how can i use that querystring in cqwp?

Answer 1

You could probably get it done by connecting it with a "Query String (URL) Filter Web Part" although I don't have a 2007 VM handy to test-drive it and I don't remember the CQWP being able to receive value from another webpart.

Alternatively, if a little bit of coding can be done, you can extend the CQWP to retrieve a query string value and consume it

public class QueryStringAwareContentByQueryWebPart : ContentByQueryWebPart 
{ 
    // Methods 
    protected override void OnLoad(EventArgs e) 
    { 
        if (!string.IsNullOrEmpty(this.Page.Request.QueryString["you-query-string"])) 
        { 
            base.Filter1ChainingOperator = ContentByQueryWebPart.FilterChainingOperator.Or; 
            base.FilterValue1 = Page.Request.QueryString["you-query-string"]; 
            base.FilterField1 = new Guid("your-field-guid").ToString();
            SPWeb web = SPContext.Current.Web; 
            base.WebUrl = web.ServerRelativeUrl; 
        } 
    } 
} 

Happy implementation :)

Answer 2

Thanx Francois, your solution is perfect.

I also got one more solution in case anybody needs,

http://blog.mastykarz.nl/imtech-content-query-web-part-v14-exslt/

Thanx.