call code-behind function within asp tags

[sj1187534]

Hi...I am trying to call a function in the code-behind from the HTML side of the page using the asp tags <% .. %>. Can anyone tell me if we can do that and how?

 

SJ

[Robby]

Create a Public function and call it like this.. (you can do the same thing with public variables as well)

 

<% =myFunction()%>

 

'code-behind
Public function myFunction() as string
   return "some value"
end function

[sj1187534]

Hi...this is how I am trying to call the function in the code-behind:

 

<asp:TemplateColumn HeaderStyle-Width="150px" SortExpression="name" HeaderText="Bar" ItemStyle-BackColor="BlanchedAlmond">

<ItemTemplate>

<asp:HyperLink Runat="server" Text='<%#DataBinder.Eval(Container.DataItem,"name")%>' NavigateUrl='<%# "/GB.Web/BarOwner/BarProfile.aspx?id=" & =StringOperations.Encrypt(DataBinder.Eval(Container.DataItem,"idNum"))%>'>

</asp:HyperLink>

</ItemTemplate>

</asp:TemplateColumn>

 

And I am getting this error:

 

BC30516: Overload resolution failed because no accessible 'ToString' accepts this number of arguments.

 

 

Can u tell me whats wrong...

 

The StringOperations is a class where the Encrypt() is a shared function which takes an integer and returns a string

 

SJ

[Robby]

replace StringOperations.Encrypt with your own function and then in that new function call StringOperations.Encrypt.

[sj1187534]

Nope..not working...giving me the same error

 

SJ

[Robby]

A couple of " and & were miss-placed

 

<asp:HyperLink Runat="server" Text='<%#DataBinder.Eval(Container.DataItem,"name")%>'

NavigateUrl='/GB.Web/BarOwner/BarProfile.aspx?id=<%# =myFunction(DataBinder.Eval(Container.DataItem,"idNum"))%>'

ID="Hyperlink1" NAME="Hyperlink1">

[Robby]

Sorry, I just noticed something... you don't need the DataBinder.. do this instead..

 

<%# myFunction(Container.DataItem("idNum"))%>

[sj1187534]

Now...it is not giving me any error but whatever is in the asp tags is being displayed as string!!!!

 

Like this---

 

Profile.aspx?id=<%# =Encrypt(DataBinder.Eval(Container.DataItem,"idNum"))%>

[Robby]

Did you paste exactly this ... It does work for me as is.

 

<asp:HyperLink Runat="server" Text='<%#DataBinder.Eval(Container.DataItem,"name")%>' 
NavigateUrl='/GB.Web/BarOwner/BarProfile.aspx?id=<%# myFunction(Container.DataItem("idNum"))%>' 
ID="Hyperlink1" ></asp:HyperLink>

[sj1187534]

this is what I have ....

 

<asp:HyperLink Runat="server" Text='<%#DataBinder.Eval(Container.DataItem,"name")%>' NavigateUrl='/GB.Web/BarOwner/BarProfile.aspx?id=<%# Encrypt(DataBinder.Eval(Container.DataItem,"idNum"))%>' >

</asp:HyperLink>

 

I even tried with the '=' sign before the Encrypt() function like this

 

<asp:HyperLink Runat="server" Text='<%#DataBinder.Eval(Container.DataItem,"name")%>' NavigateUrl='/GB.Web/BarOwner/BarProfile.aspx?id=<%# =Encrypt(DataBinder.Eval(Container.DataItem,"idNum"))%>' >

</asp:HyperLink>

 

Its not working..still showing the string!!!!

[Robby]

As I posted "you don't need the DataBinder"

 

Try the code as is in my last post

[sj1187534]

Bad news!!!

 

I am sorry about the last one...I tried like this now...

 

<asp:HyperLink Runat="server" Text='<%#DataBinder.Eval(Container.DataItem,"name")%>' NavigateUrl='/GB.Web/BarOwner/BarProfile.aspx?id=<%# Encrypt(Container.DataItem("idNum"))%>' >

</asp:HyperLink>

 

Not working!!!!

 

By the way...I forgot to ask u....the MyFunction() function u are trying, is it in the code-behind or did u write that function in the HTML page itself?

 

SJ

[Robby]

Always code behind.

 

By the way, copy/paste my sample because once again you are off.

[sj1187534]

Hi..I appreciate ur patience....but i am sorry that i didn't find any difference between ur code and mine...except the way u closed the tags...i tried that too but it just doesn't work.

 

SJ