ASCX - Function Not Being Called

  • Thread starter Thread starter George Durzi
  • Start date Start date
G

George Durzi

I created a simple user control which contains a hyperlink to link the user
to a topic in a compiled help file. I named all my help topics to have the
same name as the aspx they are for.

So in the user control help.ascx's html, I have this:
<a href='<%# GenerateHelpLink()%>' class="mischrefcontent2" id="hrfHelp"
runat="server" target="_blank">Help</a>

In the codebehind help.ascx.cs, I have this:
#region GenerateHelpLink
protected void GenerateHelpLink()
{
StringBuilder sb = new StringBuilder();
sb.Append("ms-its:");

sb.Append(ConfigurationSettings.AppSettings["ApplicationURL"].ToString());
sb.Append(ConfigurationSettings.AppSettings["HelpFile"].ToString());
string[] arScript =
Request.ServerVariables["SCRIPT_NAME"].ToString().Split("/".ToCharArray());
string sScript = arScript[arScript.GetUpperBound(0)].ToString();
sb.Append(sScript.Substring(0, sScript.LastIndexOf(".")));
sb.Append(".htm");

// you can ignore these details - this function simply returns a help
URL

return sb.ToString();
}
#endregion

So if I'm at cs_completed.aspx, the above function will return:
ms-its:http://gdurzi/framework/help/MyFelpFile.chm::/cs_completed.htm

In cs_completed.aspx, I do this:
<%@ Register TagPrefix="framework" TagName="help" Src="ascx\help.ascx" %>
and
<framework:help id="_help" runat="server"></framework:help>

The text Help (what's inside the <a></a>) is displayed, but the hyperlink
doesn't work. Upon debugging, I realized the function GenerateHelpLink is
never being called ...

I want to accomplish this without having to write code into every page to
call this function. I just wanted to plop the user control in there and let
it do it's work.. Any idea?
 
Instead of using an <a> tag, I would use a Hyperlink control.

Then in page_load do something like:

Hyperlink1.NavigationURL = GenerateHelp();
 
I would have to put code in the Page_Load of every ASPX page in my
application. I am trying to avoid that.

Any idea why the GenerateHelpLink() function doesn't get called though? It
doesn't make a diff if I use an <a> or a <asp:hyperlink>

Marina said:
Instead of using an <a> tag, I would use a Hyperlink control.

Then in page_load do something like:

Hyperlink1.NavigationURL = GenerateHelp();

George Durzi said:
I created a simple user control which contains a hyperlink to link the user
to a topic in a compiled help file. I named all my help topics to have the
same name as the aspx they are for.

So in the user control help.ascx's html, I have this:
<a href='<%# GenerateHelpLink()%>' class="mischrefcontent2" id="hrfHelp"
runat="server" target="_blank">Help</a>

In the codebehind help.ascx.cs, I have this:
#region GenerateHelpLink
protected void GenerateHelpLink()
{
StringBuilder sb = new StringBuilder();
sb.Append("ms-its:");

sb.Append(ConfigurationSettings.AppSettings["ApplicationURL"].ToString());
sb.Append(ConfigurationSettings.AppSettings["HelpFile"].ToString());
string[] arScript =
Click to expand...
Request.ServerVariables["SCRIPT_NAME"].ToString().Split("/".ToCharArray());
string sScript = arScript[arScript.GetUpperBound(0)].ToString();
sb.Append(sScript.Substring(0, sScript.LastIndexOf(".")));
sb.Append(".htm");

// you can ignore these details - this function simply returns a help
URL

return sb.ToString();
}
#endregion

So if I'm at cs_completed.aspx, the above function will return:
ms-its:http://gdurzi/framework/help/MyFelpFile.chm::/cs_completed.htm

In cs_completed.aspx, I do this:
<%@ Register TagPrefix="framework" TagName="help" Src="ascx\help.ascx" %>
and
<framework:help id="_help" runat="server"></framework:help>

The text Help (what's inside the <a></a>) is displayed, but the hyperlink
doesn't work. Upon debugging, I realized the function GenerateHelpLink is
never being called ...

I want to accomplish this without having to write code into every page to
call this function. I just wanted to plop the user control in there and let
it do it's work.. Any idea?
Click to expand...
Click to expand...
 
No, you would need to put this code into Page_Load of the user control, not
the page.

I don't think the <%# %> tags work that way if it's not part of databinding
code. If you did something like <% Response.Write(GenerateHelp()); %> that
would probably do it.

But this is doing it the old fashioned ASP way. I think putting all this
type of code into Page_Load is a much neater way to do it. It follows the
idea of separating UI and code that ASP.NET introduces.

George Durzi said:
I would have to put code in the Page_Load of every ASPX page in my
application. I am trying to avoid that.

Any idea why the GenerateHelpLink() function doesn't get called though? It
doesn't make a diff if I use an <a> or a <asp:hyperlink>

Marina said:
Instead of using an <a> tag, I would use a Hyperlink control.

Then in page_load do something like:

Hyperlink1.NavigationURL = GenerateHelp();

George Durzi said:
I created a simple user control which contains a hyperlink to link the user
to a topic in a compiled help file. I named all my help topics to have the
same name as the aspx they are for.

So in the user control help.ascx's html, I have this:
<a href='<%# GenerateHelpLink()%>' class="mischrefcontent2" id="hrfHelp"
runat="server" target="_blank">Help</a>

In the codebehind help.ascx.cs, I have this:
#region GenerateHelpLink
protected void GenerateHelpLink()
{
StringBuilder sb = new StringBuilder();
sb.Append("ms-its:");

sb.Append(ConfigurationSettings.AppSettings["ApplicationURL"].ToString());
sb.Append(ConfigurationSettings.AppSettings["HelpFile"].ToString());
string[] arScript =
Click to expand...
Click to expand...
Request.ServerVariables["SCRIPT_NAME"].ToString().Split("/".ToCharArray());
string sScript = arScript[arScript.GetUpperBound(0)].ToString();
sb.Append(sScript.Substring(0, sScript.LastIndexOf(".")));
sb.Append(".htm");

// you can ignore these details - this function simply returns a help
URL

return sb.ToString();
}
#endregion

So if I'm at cs_completed.aspx, the above function will return:
ms-its:http://gdurzi/framework/help/MyFelpFile.chm::/cs_completed.htm

In cs_completed.aspx, I do this:
<%@ Register TagPrefix="framework" TagName="help" Src="ascx\help.ascx" %>
and
<framework:help id="_help" runat="server"></framework:help>

The text Help (what's inside the <a></a>) is displayed, but the hyperlink
doesn't work. Upon debugging, I realized the function GenerateHelpLink is
never being called ...

I want to accomplish this without having to write code into every page to
call this function. I just wanted to plop the user control in there
Click to expand...
and
let
it do it's work.. Any idea?
Click to expand...
Click to expand...
Click to expand...
 
Thank you, that worked. For some reason I thought the Page_Load event of the
user control wouldn't fire.

Marina said:
No, you would need to put this code into Page_Load of the user control, not
the page.

I don't think the <%# %> tags work that way if it's not part of databinding
code. If you did something like <% Response.Write(GenerateHelp()); %> that
would probably do it.

But this is doing it the old fashioned ASP way. I think putting all this
type of code into Page_Load is a much neater way to do it. It follows the
idea of separating UI and code that ASP.NET introduces.

George Durzi said:
I would have to put code in the Page_Load of every ASPX page in my
application. I am trying to avoid that.

Any idea why the GenerateHelpLink() function doesn't get called though? It
doesn't make a diff if I use an <a> or a <asp:hyperlink>

Marina said:
Instead of using an <a> tag, I would use a Hyperlink control.

Then in page_load do something like:

Hyperlink1.NavigationURL = GenerateHelp();

I created a simple user control which contains a hyperlink to link the
user
to a topic in a compiled help file. I named all my help topics to
Click to expand...
have
the
same name as the aspx they are for.

So in the user control help.ascx's html, I have this:
<a href='<%# GenerateHelpLink()%>' class="mischrefcontent2" id="hrfHelp"
runat="server" target="_blank">Help</a>

In the codebehind help.ascx.cs, I have this:
#region GenerateHelpLink
protected void GenerateHelpLink()
{
StringBuilder sb = new StringBuilder();
sb.Append("ms-its:");
Click to expand...
sb.Append(ConfigurationSettings.AppSettings["ApplicationURL"].ToString());
sb.Append(ConfigurationSettings.AppSettings["HelpFile"].ToString());
string[] arScript =
Click to expand...
Click to expand...
Request.ServerVariables["SCRIPT_NAME"].ToString().Split("/".ToCharArray());
string sScript = arScript[arScript.GetUpperBound(0)].ToString();
sb.Append(sScript.Substring(0, sScript.LastIndexOf(".")));
sb.Append(".htm");

// you can ignore these details - this function simply returns a help
URL

return sb.ToString();
}
#endregion

So if I'm at cs_completed.aspx, the above function will return:
ms-its:http://gdurzi/framework/help/MyFelpFile.chm::/cs_completed.htm

In cs_completed.aspx, I do this:
<%@ Register TagPrefix="framework" TagName="help"
Click to expand...
Src="ascx\help.ascx"
%>
and
<framework:help id="_help" runat="server"></framework:help>

The text Help (what's inside the <a></a>) is displayed, but the hyperlink
doesn't work. Upon debugging, I realized the function
Click to expand...
GenerateHelpLink
is
never being called ...

I want to accomplish this without having to write code into every
Click to expand...
page
to
call this function. I just wanted to plop the user control in there and
let
it do it's work.. Any idea?
Click to expand...
Click to expand...
Click to expand...
 
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