DataGrid TemplateColumn and Events

[DAC]

I am creating a datagrid programatically and I successfuly coded a
TemplateColumn (that inherits from ITemplate and implements InstantiateIn).
I want to place an ImageButton there.

How do I:
1. Associate an event for the click on the button?
2. How do I know in which row the user clicked inside the event handler?

3. (out of context) Is it possible to code a rollover javascript code to
change the imgURL when the user leaves mouse over the image (as we did in
old ASP with some help from DreamWeaver)?

Thank you very much.
Daniel

 

[Stevie_mac]

I was looking to have a try at this (template columns), is there any chance you can post your ITemplate class & a SNIP
of how you instansiate a template col programatically? Any way, heres some info...

1. Associate an event for the click on the button?

btn.Click += new EventHandler (BtnTest_Click); //(C#)
AddHandler btn.Click, AddressOf MySubToHandleButtonClick '(VB)

2. How do I know in which row the user clicked inside the event handler?

In ItemCommand, check e.Item.ItemIndex

3. (out of context) Is it possible to code a rollover javascript code to
change the imgURL when the user leaves mouse over the image (as we did in
old ASP with some help from DreamWeaver)?

See this - http://www.dotnet247.com/247reference/msgs/12/61815.aspx


Good luck Stevie_mac

 

[DAC]

Here's my solution so far...
Notice I use an ImageButton.
----------------

public class DeleteColumnTemplate : ITemplate
{
public void InstantiateIn(Control container)
{
ImageButton myImgButton = new ImageButton();
myImgButton.AlternateText = "Remove this row.";
myImgButton.ImageUrl = "img/remove.gif";
//myImgButton.Click += new
System.Web.UI.ImageClickEventHandler(DeleteItem_Click); ???????
container.Controls.Add(myImgButton);
}
}

..
..
..
// Instantiating:

TemplateColumn coledit = new TemplateColumn();
coledit.HeaderText = "Template";
coledit.ItemTemplate = new DeleteColumnTemplate();
coledit.ItemStyle.HorizontalAlign = HorizontalAlign.Center;

DataGrid1.Columns.Add(coledit);


----------------
Daniel

I was looking to have a try at this (template columns), is there any

chance you can post your ITemplate class & a SNIP

 

[DAC]

Stevie,

I get "Method 'DeleteItem_Click(object, System.Web.UI.ImageClickEventArgs)'
does not match delegate 'void System.EventHandler(object, System.EventArgs)'
"

when adding the event handler.

.... or... cannot convert from EventHandler to ImageClickEventHandler....

Any ideas?

Daniel

I was looking to have a try at this (template columns), is there any

chance you can post your ITemplate class & a SNIP

 

[Jonas Karlsson]

I solved this problem myself, but I am surprised that I couldn't find the
answer here...

The trick is to use
GridDays.EditCommand += new DataGridCommandEventHandler(GridDays_Edit);