Iterating through the LinkButtons in a page.

nocofoolme · August 11th, 2008, 05:28 PM

Hello,

I have a User Control which comprises of some LinkButtons. I want to Iterate through each control and add some attributes to each of them.

I am using the code below to accomplish this:

Code:

        foreach (LinkButton lnk in Controls.GetEnumerator())
        {
            lnk.Attributes.Add("onMouseOver", "return statusMsg()");
            lnk.Attributes.Add("onMouseOut", "return statusClear()");
        }

However, I am getting the following error.

foreach statement cannot operate on variables of type 'System.Collections.IEnumerator' because 'System.Collections.IEnumerator' does not contain a public definition for 'GetEnumerator'

How should I provide the public definition for the GetEnumerator?

Thanks,
Nocofoolme.

alliancejhall · August 12th, 2008, 11:37 AM

have you tried?

        foreach (LinkButton lnk in Page.Controls)
        {
            lnk.Attributes.Add("onMouseOver", "return statusMsg()");
            lnk.Attributes.Add("onMouseOut", "return statusClear()");
        }

Jason Hall

nocofoolme · August 12th, 2008, 02:52 PM

Yes I have tried that.

It is giving me this error.

Unable to cast object of type 'ASP.bookstore_master' to type 'System.Web.UI.WebControls.LinkButton'.

alliancejhall · August 12th, 2008, 02:59 PM

try this....

foreach (Control ctrl in Page.Controls) {
         if (ctrl is LinkButton) {
             ((LinkButton)ctrl).Attributes.Add("onMouseOver", "return statusMsg()");
             ((LinkButton)ctrl).Attributes.Add("onMouseOut", "return statusClear()");
         }
     }

Jason Hall

nocofoolme · August 13th, 2008, 02:04 PM

Hi Jason,

I have tried that but no use. this is my code:

Code:

protected void Page_Load(object sender, EventArgs e)
      {
        IterateLinkButtons();
      }

      /// <summary>
      /// Iterates through the LinkButtons in the Nav control.
      /// </summary>
      public void IterateLinkButtons()
      {
        foreach (Control ctrl in Page.Controls)
        {
            if (ctrl is LinkButton)
            {
                ((LinkButton)(ctrl)).Attributes.Add("onMouseOver", "window.status = 'Browse Catalog'; return true;");
                ((LinkButton)(ctrl)).Attributes.Add("onMouseOut", "window.status = ''; return true;");
            }
         }
      }

--------------------------------------------------

but when I do it for individual controls like this:

LnkButton1.Attributes.Add("onMouseOver", "window.status = 'Browse Catalog'; return true;");

It is working in IE but not in firefox

alliancejhall · August 13th, 2008, 02:09 PM

What is the error you get? or is it just not working how you are expecting it to?

Jason Hall

nocofoolme · August 13th, 2008, 02:25 PM

Quote:

quote:Originally posted by alliancejhall
What is the error you get? or is it just not working how you are expecting it to?

Jason Hall

It is just not working. I do not get any compile time errors. I heard there is issue with FF3.0 and ASP.NET. Is this true

alliancejhall · August 13th, 2008, 02:29 PM

I'm not sure.... I don't really code in 3.5 but i do have FF 3.0 and haven't run into any strange issues
like this but I've never tried to change the window status either? maybe FF doesn't let you do that? check your
html output (right click, view page source) and see if the link buttons are actually getting the attributes added
or not.

Jason Hall

nocofoolme · August 13th, 2008, 02:54 PM

Quote:

quote:Originally posted by alliancejhall
I'm not sure.... I don't really code in 3.5 but i do have FF 3.0 and haven't run into any strange issues
like this but I've never tried to change the window status either? maybe FF doesn't let you do that? check your
html output (right click, view page source) and see if the link buttons are actually getting the attributes added
or not.

Jason Hall

Yes, attribute got added. Here:

<a id="ctl00_Nav1_LnkCatalog" onMouseOver="window.status = 'Browse Catalog'; return true;" onMouseOut="window.status = ''; return true;" href="javascript:__doPostBack('ctl00$Nav1$LnkCatal og','')">Browse Catalog</a>

edit: But it is not showing up in the status bar

robzyc · August 13th, 2008, 02:55 PM

Hi There,

Just thought I would get in on this too.. I cant seem to get the code to work properly either.. I'm not even getting a status in IE?!

Rob
http://cantgrokwontgrok.blogspot.com