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passing the value of a container.dataitem as a parameter in a javascript function inside a hyperlink control?

Posted on 2004-09-28
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Last Modified: 2008-01-09
Hi There,

I am wanting to call a javascript function from inside a hyperlink control, the function works fine Its just not working when I try to put the value of a       Container.DataItem inside it. Is it legal to do this? I guess I'm probably missing a comma or something.

Sean - thanks in advance                  

<asp:HyperLink runat="server" Text="<%# DataBinder.Eval(Container.DataItem, &quot;shopname&quot;)%>" NavigateUrl="javascript:RefreshParent('<%# DataBinder.Eval(Container.DataItem, &quot;shop&quot;)%>');" ID="Hyperlink1"/>
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Question by:bullrout
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by:viola123
ID: 12176738
follow this:

<a class="partname" href="partdetail.aspx" onclick="hideQstring('pt_recno', '<%# DataBinder.Eval(Container.DataItem, "pt_recno") %>')" target="_blank"><%# DataBinder.Eval(Container.DataItem, "pt_shortdesc") %></a>

cheers
viola
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Expert Comment

by:viola123
ID: 12176740
and:

<IMG SRC="<%# findImage(Convert.ToInt32(DataBinder.Eval(Container.DataItem, "pt_recno"))) %>" align="absMiddle" border="0"/>
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Expert Comment

by:viola123
ID: 12176750
i don't think you have to use &quot;  

both of the two codes above are working on my page. so i believe yours should be all right.

cheers
viola
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Accepted Solution

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viola123 earned 500 total points
ID: 12176765
try these two:

1.
<asp:HyperLink runat="server" Text="<%# DataBinder.Eval(Container.DataItem, 'shopname')%>" onClick="javascript:RefreshParent('<%# DataBinder.Eval(Container.DataItem, "shop")%>')" ID="Hyperlink1"/>

2.
<a onClick="RefreshParent('<%# DataBinder.Eval(Container.DataItem, "shop")%>')">
<%# DataBinder.Eval(Container.DataItem, 'shopname')%>
</a>

regards,
viola
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Expert Comment

by:boulder_bum
ID: 12176772
"Is it legal to do this?"

Yes.

As mentioned, &quot; should instead be a " (quotation mark).

Also, I've had problems before using double instead of single quotes for elements when binding (hopefully Microsoft has the problem fixed by now) so if you're still getting a funky error try changing:

Text="<%# ... %>"

  -to-

Text='<%# ... %>'
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Expert Comment

by:viola123
ID: 12176796
my experience on that is:

text = "<%#...'myfunction("para")'%>"


wish it help

viola123
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Expert Comment

by:jnhorst
ID: 12177135
In your databinding for the text property of the hyperlink, you are binding to "shopname" and then for your js call, you are binding to "shop".  Is this right?  Should "shop" be "shopname"?

Also, an option would be to have the column with the "shop" value you want to pass to RefreshParent() as a column in your grid (I am assuming that is your container?) that is marked as not visible.  Let's say that is column index #1.  You could use the ItemDataBound event and code like this:

if (e.Item.ItemType != ListItemType.Header && e.Item.ItemType != ListItemType.Footer)
{
     // resolve hyper link.  assuming it is in colunm index 2.  make sure you give your hyperlink control an id string (i'll use "hyperlinkName").
     HyperLink link = (HyperLink)e.Item.Cells[2].FindControl("hyperlinkName");

     // set NavigateUrl
     string shop = e.Item.Cells[1].Text;
     link.NavigateUrl = "javascript:RefreshParent('" + shop + "');";
}

John
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Author Comment

by:bullrout
ID: 12177169
Hi guys, thanks for all the answers. The website is brillant for asp .net beginners like myself.

I appreciate the help.

Sean
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