Forums

Not answered Programmatically Filtering the DownloadList

joeldickson

Posted on Jul 23, 2009 (permalink)

Hi Guys,

I was working on the same thing wiht the ImageGallery Control. But the man Ivan help me out with this post.

http://sitefinity.com/support/forums/sitefinity-3-x/developing-with-sitefinity/inheriting-the-imagegallery-control.aspx

I tried to use the same method in the DownloadList and am getting no love.

the method is

    
             protected override System.Collections.IList CreateDataSource()    
        
                {    
        
                    var builder = new ContentFilterBuilder(this);    
        
                    builder.AddFilter(new ContentFilterStatement("Tag.Name", "test", Telerik.Cms.Engine.ContentViewFiltering.ContentFilter.Condition.Equal));            
        
                    return base.CreateDataSource();     
        
                }

Using this i just get the full list of documents on the site.

Should this same method work? or is there somthing funky i need to do to get this tow work on the DocumentList control?

Thanks in advance,

Joel

Ivan Dimitrov Ivan Dimitrov

Posted on Jul 24, 2009 (permalink)

Hello joeldickson,

You can give a try to the code below. Here we are overriding CreateChildControls and adding our filter.

    
            using System; 
        
            using Telerik.Cms.Engine.ContentViewFiltering; 
        
            using Telerik.Libraries; 
        
            /// <summary> 
        
            /// Summary description for CustomDownloadList 
        
            /// </summary> 
        
            public class CustomDownloadList : DownloadList 
        
            { 
        
                public CustomDownloadList() 
        
                { 
        
                    // 
        
                    // TODO: Add constructor logic here 
        
                    // 
        
                } 
        
                public override string ItemListTemplatePath 
        
                { 
        
                    get 
        
                    { 
        
                        return "~/Sitefinity/Admin/ControlTemplates/Libraries/Modes/DownloadList.ascx"; 
        
                    } 
        
                } 
        
                public override Type LocalizationAssemblyInfo 
        
                { 
        
                    get 
        
                    { 
        
                        return typeof(DownloadList); 
        
                    } 
        
                    set 
        
                    { 
        
                        base.LocalizationAssemblyInfo = value; 
        
                    } 
        
                } 
        
                protected override void CreateChildControls() 
        
                { 
        
                    base.CreateChildControls(); 
        
                    var filter = new ContentFilterBuilder(this); 
        
                    filter.AddFilter(new ContentFilterStatement("Tag.Name", "test", Telerik.Cms.Engine.ContentViewFiltering.ContentFilter.Condition.Equal)); 
        
                } 
        
            }

Kind regards,
Ivan Dimitrov
the Telerik team

Instantly find answers to your questions on the new Telerik Support Portal.
Check out the tips for optimizing your support resource searches.

joeldickson

Posted on Aug 4, 2009 (permalink)

Hi Ivan,

Thanks for your help. But I've copied and pasted your code and the filter doesn't work, i still get all the results displayed, not filtering of the list.

Any more ideas?

Thanks,

Joel

Reply

Dido Dido
Posted on Aug 7, 2009 (permalink)

Hello joeldickson,

I looked through the code, and I did not find any reason for the codenot to work. Therefore, I wrote a simple download list control,that you can modify easily to suit your needs. It has not been testedexclusively.

Best wishes,
Dido
the Telerik team

Instantly find answers to your questions on the newTelerik Support Portal.
Check out the tipsfor optimizing your support resource searches.
Attached files
- customdownloadlist.zip
Reply

Shadi S

Posted on Feb 26, 2010 (permalink)

I downloaded the sample files that Dido made and imported them into my Sitefinity 3.7 site. Doesn't seem to fully work. Here's what happens:
I insert the control into a page (works)
I set the "FromLibraries" field (works)
I set the "FromTags" field (doesn't work). I get the following error in Edit View:

Unable to cast object of type 'Telerik.Cms.Engine.Data.TagsQuery' to type 'Systems.Collection.Generic.IList'1[Telerik.Cms.Engine.ITag]'.

when when I publish the page and go back to regular view, the entire page crashes.

Please help, I'm trying to impliment a custom DownloadList that filters by Tags.

Reply

Ivan Dimitrov Ivan Dimitrov

Posted on Feb 26, 2010 (permalink)

Hi Shadi Safadi,

You can fix the cast exception by modifying CreateDataSource() . Please check
if (filterByTag) loop.

if (filterByTag)

{

tagFilter = this.manager.GetTags().OfType<ITag>().ToList();

}

Greetings,
Ivan Dimitrov
the Telerik team

Do you want to have your say when we set our development plans? Do you want to know when a feature you care about is added or when a bug fixed? Explore the Telerik Public Issue Tracking system and vote to affect the priority of the items.

Reply

Shadi S

Posted on Feb 26, 2010 (permalink)

Ivan, thank you for the code. that fixed the error, but I ran into another problem.

It seems your code filters Tags by their ID and not by they TagName. I'm a developer and I can found out the TagID, but for my client, they won't be able to figure that out, is there a way to modify the code to filter by the TagNames?

thank you.

Reply

Ivan Dimitrov Ivan Dimitrov
Posted on Feb 28, 2010 (permalink)
Hi Shadi S,

You can implement a custom WebUItype editor from where you select TagNames or TagIDs.Yyou can find code samples at
- Creating a custom WebUITypeEditor
- SiteMenu Builder
Greetings,
Ivan Dimitrov
the Telerik team

Do you want to have your say when we set our development plans? Do you want to know when a feature you care about is added or when a bug fixed? Explore the Telerik Public Issue Tracking system and vote to affect the priority of the items.
Reply

Shadi S

Posted on Mar 2, 2010 (permalink)

Ivan, thank you for the suggestion, but I ended up implimenting the following change to your code and I think this is good enough for now:

your code (does not filter by Tags, it just takes all available tags):

if (filterByTag)

{

    tagFilter = this.manager.GetTags().OfType<ITag>().ToList();

}

my code (filters by the user input FromTags):

if (filterByTag)

{

    tagFilter = new List<ITag>();

    TagGuidArrayConverter tgConv = new TagGuidArrayConverter();

    IList<ITag> alltags = this.manager.GetTags().OfType<ITag>().ToList();

    foreach (Guid g in FromTags)

    {

        foreach (ITag t1 in alltags)

        {

            if (t1.ID.Equals(g)) { tagFilter.Add(t1); }

        }

    }

}

I applied the same to the Categories and it is working now.

thanks for all the help.

Reply