Forms Data Controls :: Imagebutton In Datalist - Nagging For Days - Two Separate Pieces Won't Work Together

I'm trying to do: I have a webform with a datalist. The datalist shows projects (projectname, image and an imagebutton). When a visitor clicks the imagebutton two events should take place:

- First: data should be send to SQLdatabase (projectID, name of project, sessionID, datetime etc).

- Second: a pop up window must be opened to an existing webpage of the facilitator of the project, using an url which (is in my database).

The problem is my two seperate pieces of code-behind work fine, it's just that they won't work together. Here is my code: The imagebutton:

< asp:ImageButton ID="openButton" CssClass="openbutton" runat="server" ImageUrl="~/Images/openButton.png" CommandName="Sendto" CommandArgument='<%#Eval("ProjectID")%>' OnDataBinding="openButton_DataBinding" ></asp:ImageButton>

Code behind send to database:

protected void list_ItemCommand(object sender, DataListCommandEventArgs e)
{
if (e.CommandName.ToString() == "Sendto")
{
string projectId = e.CommandArgument.ToString();
bool succes = ProjectAccess.Projectopen(projectId);
}
}.............................