Start Free Trial

Michael Sterling

asked on

How do I do a simple POST and GET in C# to pass/retrieve values?

I'm used to being able to use session variables or (in an older application) the authentication provided by ASP .NET to control security/access within my web app. Now, for a couple of reasons, I need to POST and GET data between pages but I'm struggling with how this is done. I need a simple way,using C#, to POST some data from one page and then GET (process/retrieve) it on another page. Can someone provide me with simple clear examples or code for how this is done? I'm using VS 2012 and 2015.

why you dont use sessions?

normally, you add hidden vars into forms

<form ...>
<input type="hidden" name="userid" value="<%=Session("UserID")%>">
</form>

Open in new window

then on target page

UserID = Request("UserID")

Open in new window

Michael Sterling

ASKER

@HainKurt: Website is on a server farm. How do I assign to those hidden vars in C#?

ASKER CERTIFIED SOLUTION

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

Michael Sterling

ASKER

I'm hosting the site on GoDaddy. I'm using a my sequel database.

Michael Sterling

ASKER

I tried using session variables on the server farm, and they would never maintain their values in between pages.

what product are you using, please send me GoDaddy farm product...
you should set them to use same session...
maybe add a sql server to the farm or use same web config...
or use sticky sessions somehow...

the other solution is really pain!
I mean write web app without session :)

Michael Sterling

ASKER

Understood, but I did not create or design GoDaddy webfarm. I am stuck in this situation, and not able to use session-variables at all. Albeit a pain, I really need to know how to post a response to a page, and retrieve it using a GET. Do you have any examples of that?

I gave you how to do that in my first post...

you can post to a page, but you cannot get it if page re-send it back :)

you can use cookies, but it is not secure...

can I get the link to GoDaddy farm product...

Michael Sterling

ASKER

Sure you want the link to my website? On GoDaddy?

Michael Sterling

ASKER

How do I assign a value to the hidden Field, in C#?

godaddy farm product... I did not see it here

https://ca.godaddy.com/hosting/windows-hosting#compare

aspx

<asp:HiddenField id="userid" value="" />

Open in new window

c#

userid.value="HainKurt";

Open in new window

js

alert(document.getElementById("<%=userid.ClientId%>").value);

Open in new window

jQuery

alert($("#<%=userid.ClientId%>").val());

Open in new window

Michael Sterling

ASKER

Ok. i don't need to use runat="server"?

David Johnson, CD

neither did I when I checked their business plans https://ca.godaddy.com/hosting/business-hosting

So what plan do you have?

:) yes of course, I forgot to add runat="server" part

I really I would not go to sessionless hosting solution!
you should somehow enable use sessions...
without sessions, it will be nightmare to build any web site :)

Michael Sterling

ASKER

I've called into customer support and have been told that they don't allow session variables in a server farm. when you think about it, it makes sense, because you're not always going to return to the same server.

Michael Sterling

ASKER

I've tested the hidden field and I'm still not getting any value / empty string. In my default.aspx page (my login page) I set my hidden field value as such:

                    HiddenField hf = (HiddenField)this.Master.FindControl("hdfldTest");
                    hf.Value = dbr["UserStatus"].ToString();

Open in new window

Then when I go to the landing page, after the login, I check for the value like this and get nothing:

HiddenField hf = (HiddenField)this.Master.FindControl("hdfldTest");
string temp = hf.Value.ToString();

Open in new window

when you think about it, it makes sense, because you're not always going to return to the same server.

but, in farm, there is a load balancer which allocates sessions to servers...
it can be adjusted to use sticky session, ie, same guy always hit on same server...

what product did you get? I never saw godady/farm hosting :)

I need to see whats going om...
if you create a test login and provide url then I can check...

Michael Sterling

ASKER

I got one of the hosting packages on their "Plesk" hosting platform. I don't have access to the load balancer to set it to use sticky sessions. Also, changing that setting for me would change it for all of their users. I don't think they're going to do that.

Michael Sterling

ASKER

HainKurt, check your inbox

ok, what should I do here to reproduce the issue?

Michael Sterling

ASKER

the error is behind the scenes. i guess this way wont work.

I see lots of errors left and right...

http://test.sjushtracker.com/Reports.aspx?UserStatus=ADMIN

Line 199:				oMail.Body = TESTING PHASE + <br/> + ltReport.Text;

Open in new window

should be

oMail.Body = "TESTING PHASE<br/>" + ltReport.Text;

Open in new window

http://test.sjushtracker.com/LoadStudents.aspx?UserStatus=ADMIN

Line 205:                cmd = Utility.AddNewStudentRecord;

Open in new window

Compiler Error Message: CS0117: 'Utility' does not contain a definition for 'AddNewStudentRecord'

???

Michael Sterling

ASKER

Ok. i'm working on those issues but they don't affect the fact that my hidden variables are not passing between pages.

on which page do you have hidden vars?

Michael Sterling

ASKER

My master page is where they were. I don't have them now.

Michael Sterling

ASKER

thanks for your help and patience