Add attribute to GridView to call javascript function

I am trying to launch a modal dialog from a grid view.  I have it working now by having a "View" command column and calling the GridView_RowCommand method on click.  From here I use the following code to launch a modal dialog:

Response.Write("<script>"); Response.Write("window.showModalDialog(encodeURI('ViewResourceComment.aspx?ID=");
Response.Write("'),'','center: yes; resizable: no; help: no; status: no; dialogWidth: 750px; dialogHeight: 675px;')");

The problem I am having with this is that the click in the grid causes a post back to the server.  With other modal dialogs I have (open from links) I add an attribute to the link on the page load so that is automatically calls javascript code and not C#.

this.lnkNewComment1.Attributes.Add("OnClick", "Javascript:LoadModalDialog('"
            + dataToSend + "','EditComment.aspx', '710', '700', 'comment')");

Is there a way to do this with a gridView?  I'm not sure how to determine the row that was selected.  I will also need to access the data key names attribute to get the ID of the item.

Overview of my grid:
View -  Link- loads a modal dialog
delete -  Link - redirects to a confirm screen
Archive -  Link - redirects to a confirm screen
comment - just text
user - just text.

Thanks in advance!

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Elvio Lujan.Net Senior DeveloperCommented:
in the rowdatacommand event:

e.Row.Cells(cellIndex where is your link).Attributes.Add("onclick", "window.showModalDialog...")

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Elvio Lujan.Net Senior DeveloperCommented:
sorry rowdataBound :)
sarahjackelAuthor Commented:
ooo...that's good.  Thanks for the quick responce!  I'll try it out.
sarahjackelAuthor Commented:

I had to change it a bit.  Here is what I wrote:

 string dataKey = "";
        for (int i = 0; i < BaseGridView.Rows.Count; i++)
            dataKey = BaseGridView.DataKeys[i].Values[0].ToString();
+ dataKey + "','ViewComment.aspx?ID=" + dataKey + "', '700', '600', 'viewcomment')");

Thanks you, lem2802
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