HyperLink with NavigateUrl with Eval(). Where is the mistake?

Question

First I was changing HyperLink.NavigateUrl in code-behind on Page_Load().

But after I decided to do it in design using Eval() method.

<asp:HyperLink runat="server"
     NavigateUrl='<%# String.Format("~/Refuse.aspx?type={0}&id={1}", Eval("type"), Eval("id")) %>' Text="Refuse" />

or

<asp:HyperLink ID="urlRefuse" runat="server"
     NavigateUrl='<%# String.Format("~/Refuse.aspx?type={0}&id={1}", Request["type"], Request["id"]) %>' Text="Refuse" />

where id and type - are variables from Request.

But it doesn't work. Only raw text 'Refuse' is shown. Where is my mistake? Thanks in advance.

Henson

Hai, see this if it helps http://forums.asp.net/p/1490115/3505218.aspx – Nickelic

Thanks! I'm using a method from post #2 and it doesn't work. I want to figure out where am I wrong.. – Henson

Id prperty of ur hyperlink is missing... Is that causes error i dont know... – Nickelic

@Pandiya: Sounds mysteriously and in the same time - realistic. But unfortunately didn't help. – Henson

NavigateUrl='<%#Eval("type","id", "~/Refuse.aspx?type={0}&id={1}") %>' – Nickelic

Try NavigateUrl='<%#string.Format("Sync.aspx?Msg={0}", HttpUtility.UrlEncode(Eval("Msg"))%>' – Nickelic

Where you use the hyper within a datalist,gridview or the page – Nickelic

Answer 1

this is working great

NavigateUrl='<%# Eval("type","~/Refuse.aspx?type={0}") %>'

Aeciospore

I stopped using web forms years ago, and yet I come years later to learn something like this was so easy. – Pleach

Answer 2

This worked for me

NavigateUrl='<%# String.Format("{0}.aspx?ID={1}", DataBinder.Eval(Container.DataItem, "Category"), DataBinder.Eval(Container.DataItem, "Post_ID")) %>'

Tyndall

Answer 3

Try and ViewSource in your browser, what's being rendered to the client in your href? Is it what you expected?. If you are trying to use variables from the request collection you can't use Eval, you need to use the Request query string parameters.

<asp:HyperLink runat="server"
     NavigateUrl='<%# String.Format("~/Refuse.aspx?type={0}&id={1}", Request["type"], Request["id"]) %>' Text="Refuse" />

Callida

Next is being rendered: <a id="ctl00_commonForm_ctl01_urlRefuse">Refuse</a>. Thanks for tip. I used it. The same result.. – Henson

Are you trying to use values from the query string? Did you try and use Request["id"] instead of Eval("id")? – Callida

Try adding Page.DataBind() to your Page_Load. – Callida

I tried this myself, it worked. Make sure you have valid data in your query string parameters. – Callida

@Callida where he is using the hyperlink within a datalist,gridview or the page – Nickelic

I already understood that I have to use Request["id"]. I do this. And current url where I'm testing is /Approve.aspx?type=request_exchange&id=2 a page loads a control without any GridView or other Views – Henson

(string)Eval("type") works only after this.DataBind() on Page_Load(). It works but it sucks :) – Henson

Answer 4

Try this one:

<asp:HyperLink ID="HyperLink2" runat="server" onclick='<%# String.Format("AcceptUser({0},{1})",Eval("UserId"), Eval("TsId")) %>' NavigateUrl="javascript:void(0)" Visible='<%# (bool)Eval("CanDelete") %>'>Accept</asp:HyperLink>  

Nickelic

Answer 5

Try this:

HttpUtility.UrlEncode(Eval("type")

Nickelic

Answer 6

Try this it worked for me:

Eval("type").ToString()

Nickelic