Dynamic GridView and DataList in ASP.NET 2.0
page 4 of 10
by Satheesh Babu
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Implementing Dynamic DataList

The DataList will have a Header template with Category Name displayed. For example, if it is displaying ASP.NET article, the category name will be ASP.NET. The articles will be displayed in the item template. For every article in the item template we will display the title of the article as a hyperlink that links to the original URL of the article with a description and author name. The footer will show the number of articles present in this category.

Listing 2: TemplateClass for DataList

public class MyTemplate : ITemplate
    ListItemType _itemType;
    private string _no;
    private string _categoryName;
    public string NoOfArticles
            return _no;
            _no = value;
    public string CategoryName
            return _categoryName;
            _categoryName = value;
    public MyTemplate(ListItemType Type)
        _itemType = Type;
    public void InstantiateIn(System.Web.UI.Control container)
        Literal lc = new Literal();
        switch (_itemType)
            case ListItemType.Header:
                lc.Text = "<div id=\"nifty\" class=\"PostCategory\">   " 
                            + CategoryName + "</div>";
            case ListItemType.Item:
                lc.DataBinding += new EventHandler(TemplateControl_DataBinding);
            case ListItemType.Footer:
                lc.Text = "<div style=\"text-align:right\">" + NoOfArticles 
                           + " Article(s) present in this category" + "</div>";
private void TemplateControl_DataBinding(object sender,  System.EventArgs e)
        Literal lc;
        lc = (Literal)sender;
        DataListItem container = (DataListItem)lc.NamingContainer;
   lc.Text += "<div class=\"Post\"><div class=\"PostTitle\"><A     href=" + 
      DataBinder.Eval(container.DataItem, "URL"+ ">" + 
      DataBinder.Eval(container.DataItem, "Title"+ 
      "</a></div><div class=\"PostSubtitle\">" + 
      DataBinder.Eval(container.DataItem, "Description"+ 
      "</div> <div class=\"PostInfo\">Posted on " + 
      DataBinder.Eval(container.DataItem, "CreatedOn""{0:d} @ {0:t}"+ " By " + 
      DataBinder.Eval(container.DataItem, "CreatedBy"+ " in " + 
      DataBinder.Eval(container.DataItem, "Category"+ "</div> ";

In the above code I have used 2 public properties, CategoryName and NoOfArticle, for displaying category name in Header Template and for displaying a number of articles in Footer Template. We can also specify this as constructor argument instead of giving it as public properties. I have defined TemplateControl_DataBinding event to bind the data that is in resultset.

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Title: good article   
Name: Mahmoud ALGoul
Date: 2011-02-02 5:51:30 AM
cool article, but how I can add paging for the code, any help please.
Title: FANTASTIC!!   
Name: André
Date: 2010-03-12 5:02:57 PM
Thank You!! Great job and easy to understand..
Title: web filtering policy   
Name: adel
Date: 2009-07-29 5:47:19 AM
i need to design web filtering policy
Title: Itemplate funtion not working   
Name: Prabhat Sinha
Date: 2009-06-25 7:17:46 AM
its really good work in C# but itemplete funtion not working in vb.net please help me
Title: If items dissapear in postback   
Name: TiagoReil
Date: 2009-06-16 1:23:08 PM
I had to do something like this, and had lots of problems. First of all, when you do a postback, you loose all the dinamic templates. Not databounts added dinamically, but only the ones that are templates disapear always. So I run the code on every postback. But then the events in the grid, that are loaded dinamically, started acting strange. Runing events that had already run, etc.

The solution and correct way to do this is to add all the code for adding columns on the PreInit event. Thats the correct place to add the creation of the columns.

Title: Great example   
Name: Vijay
Date: 2009-06-06 3:36:28 AM
What is DynamicGrid_RowDataBound doing?
Title: Working example   
Name: Mindaugas
Date: 2009-06-03 5:05:06 AM
Working example. Thank you!
Title: Dynamic GridView   
Name: Shaju M.K
Date: 2009-02-12 5:38:02 PM
Hi Satheesh Babu,
Really its a very nice article that helped me to solve the issue that I faced in the development stage.

Thank You Very much!
Title: JSON LINQ   
Name: willian brasil
Date: 2008-10-03 1:18:03 PM
Very Good!
Title: Data List   
Name: Deleep Kumar Pavana
Date: 2008-09-11 5:03:07 AM
Hi satheesh,
Its good but repeat colomns property is not working properly on that,if i use table tag to display data in table format..
Title: Good Work ....   
Name: Mudassar C
Date: 2008-07-17 1:09:10 AM
Hi Sateesh,
Its a really good article to read..
Good piece of Code..

Mudassar Chandle
Title: Data List And GridView   
Name: Santosh Kumar
Date: 2008-06-24 3:36:54 AM
Hi Satheesh,
I read this article , good work done.
Santosh Kumar
Title: VB Please   
Name: Matt
Date: 2008-06-03 1:11:24 AM
Any chance I can get this in VB?
Title: problem with binding   
Name: Kannan
Date: 2008-05-15 2:51:40 AM
All item template values displayed at once.no reapeated datalist display
Title: muhajiran bugok   
Name: muhajiran bugok
Date: 2008-05-09 6:43:36 AM
this is very helpful..
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Title: sivaram   
Name: sivaram
Date: 2008-02-04 1:47:59 AM

hi i read your article.it is well and good article.

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