Nikifor,

Thank you for your reply. I have seen the examples that you suggested and still don’t get how to create the TemplatedDataField for each columns on the child band when it’s dynamically loaded and the columns of the data source are dynamically created as well.

But, I was able to create the TemplatedDataField but not sure if it’s the correct way. I added an InitializeRow event to the ContainerGrid in the RowIsIandsPopulating event and then in the InitializeRow event I created a new Template and assigned it to the e.Row.Items Template. The buttons show on the child band for each column but I cannot click on any of them. They are acting as if they were ReadOnly.

void whdg1_RowIslandsPopulating(object sender, ContainerRowCancelEventArgs e)

    {

        e.Cancel = true; 

        Supplier sp = (((Infragistics.Web.UI.Framework.Data.ListNode)e.Row.DataItem)).Item as Supplier;

        sp.Products = new List<Products>(NWindClient.GetProducts(Convert.ToInt32(sp.SupplierID))); 

        ContainerGrid child = new ContainerGrid(); 

        child.Enabled = true;

        child.Level = 1;

        child.InitializeRow += new InitializeRowEventHandler(child_InitializeRow); 

        e.Row.RowIslands.Add(child);

        child.DataSource = sp.Products; 

    }

    void child_InitializeRow(object sender, RowEventArgs e)

    {

        for (int i = 0; i < e.Row.Items.Count; i++)

        {

            e.Row.Items[i].Template = new PlaceHolderTemplate(e.Row.Items[i].Text);

        }

    }

Thanks

Hello John,

Is it possible to attach a small runnable sample reproducing the issue you are facing so I could see it myself and investigate if it is caused from our controls or from wrong implementation from your side.

Nikifor,

Thank you for your reply.

I had attached the source files on my previous reply.  I have been using the WHDG ManualLoadOnDemand  sample code supplied with NetAdvantage 2011.1. If you have the samples installed you can replace the files with the ones attached. Let me know if that works for you.

Thanks

Hello John,

Please take a look at the attached sample which is displaying the buttons as expected and they are making a postback everytime i click one of them.

Nikifor,

Thank you for your reply. Your example works. But, if you replace the Button with the WebImageButton it does not work. 

Thanks

Nikifor,

Thank you for your reply. Your example works. But, if you replace the Button with the WebImageButton it does not work.

Also, if I add a click event to the button in your example, the event is not being fired on the post back.

Thanks

Hello John,

Please let me know if you have any further questions regarding this issue.

Hello John,

I assume your code at the moment looks like the attached sample. If so then take a look that the item template is reinstantiated on every postback which means that the button is cleared after it makes the postback so this is causing the not firing of the event. I would suggest to try handling the client side click event which should be fired and then make a __doPostBack with some appropriate arguments through it. I have not tested this suggestion but it’s the only one I can came up at the moment.

Nikifor,

Thank you for your reply.  That seem to work on the WebImageButton, I now can click on the image. However, I am still unable to get the button click event to fire.

public class CustomItemTemplate : ITemplate

{

    #region ITemplate Members 

    public void InstantiateIn(Control container)

    { 

        WebImageButton Btn = new WebImageButton();      

        Btn.Text = "MyTmpBtn";

        Btn.Click += new ClickHandler(Btn_Click);

        container.Controls.Add(Btn);

    } 

    void Btn_Click(object sender, ButtonEventArgs e)

    {

        //not getting here on the button click

        throw new NotImplementedException();

    }

    #endregion

}

Hello John,

This behavior occurs as not a bug. When a script control is used in the template with ajax, it does render and call the start up script to initialize the client objects. So the image buttons are not fully functional. If ajax is OFF, then the whole page is rerendered, including the new init scripts. This is what needs to be done.

Nikifor,

Thank you for all your support. Let me know if you need any more information from me on this topic.

John