ASP.NET Discussion Boards

Re: Problem with GridView

Sider8930-Mar-10 8:11

Sider89

30-Mar-10 8:11

I've done like this...
but is is same error Frown | :(

C# Developer

Insert Into Listview Label

MarkPhD30-Mar-10 6:13

MarkPhD

30-Mar-10 6:13

In my Listview I have the following Label in the <inserrtitemtemplate>

Re: Insert Into Listview Label

Sandeep Mewara30-Mar-10 7:05

Sandeep Mewara

30-Mar-10 7:05

Can you please edit and make the formatting correct. Its hard to read right now!

MarkPhD wrote:
"Object reference not set to an instance of an object" error.

Based on this, it means that there is some problem at this line of yours:
CType(lvPTRPhoneCalls.FindControl("IDNOInsertLabel"), Label).Text

For now, looks like a bracket missing.... try this:
(CType(lvPTRPhoneCalls.FindControl("IDNOInsertLabel"), Label)).Text

P.S.: Assuming the control exists in 'lvPTRPhoneCalls'... thus CType(lvPTRPhoneCalls.FindControl("IDNOInsertLabel"), Label) is not null!

QueyString problem in IE6

Abbas_here30-Mar-10 5:05

Abbas_here

30-Mar-10 5:05

Hi Friends..

I am using Asp.Net c# one of my project, there i am using QueryString to pass value from one page to another page as (www.xyz.com?a=old#10),

value=Request.QueryString["prd"]

the problem is that IE6 taken value=old#10 where is all browser taken value=old kindly help me i need only old .

Re: QueyString problem in IE6

Not Active30-Mar-10 5:21

Not Active

30-Mar-10 5:21

Have you tried to encode the url

Server.URLEncode('www.xyz.com?a=old#10");

I know the language. I've read a book. - _Madmatt

Re: QueyString problem in IE6

Abbas_here30-Mar-10 5:34

Abbas_here

30-Mar-10 5:34

Solve by string.replace(IndexOf)

Re: QueyString problem in IE6

Not Active30-Mar-10 6:02

Not Active

30-Mar-10 6:02

How did this solve your issue?

I know the language. I've read a book. - _Madmatt

Re: QueyString problem in IE6

Rutvik Dave30-Mar-10 8:38

Rutvik Dave

30-Mar-10 8:38

I think he did substring from the start to the index of '#' sign... D'Oh! | :doh:

... otherwise we need to learn the programming again... Smile | :)

stop page reloading in asp.net

vikas shukla30-Mar-10 2:30

vikas shukla

30-Mar-10 2:30

hi sir,

i am new in asp.net.sir i want to know that is there any java script with the help of which we can stop page reloading at the time of using ajax control.and dropdown text selection.

sir i know that update panel can do this.but sir i do not want to use update panel.i mean i want to stop my page reload without using update panel while i am using ajax.

please help me sir i am posting my this question again.
because first time i did not get any response.

Re: stop page reloading in asp.net

Not Active30-Mar-10 4:37

Not Active

30-Mar-10 4:37

Ajax is an out of band technology that does not require your page to reload. There are many, many examples for Ajax here and elsewhere.

One thing to make sure to do is set AutoPostback to false on your dropdownlist so it does not postback

I know the language. I've read a book. - _Madmatt

Re: stop page reloading in asp.net

T M Gray30-Mar-10 6:19

T M Gray

30-Mar-10 6:19

Do you have a reason you don't want to use an update panel?

Your question is like asking about getting a nail into a piece of wood but refusing to use a hammer. When you make silly restrictions with no reasons behind them you are less likely to get help because you might dismiss other good solutions for no apparant reason as well.

Re: stop page reloading in asp.net

Not Active30-Mar-10 6:44

Not Active

30-Mar-10 6:44

I would disagree. There are plenty of good reasons to not use an UpdatePanel. Refreshing a portion of a page does not require one to be used and it does add extra overhead that may not be necessary.

I know the language. I've read a book. - _Madmatt

Re: stop page reloading in asp.net

T M Gray30-Mar-10 7:20

T M Gray

30-Mar-10 7:20

Of course. A nail doesn't require a hammer either. You could use a rock. And you can just pick up a rock without the overhead of a mining and smelting operation for the metal part of a hammer. But if I have a hammer and a rock on my work table, I am probably going to use the hammer. And if someone comes into my workshop and declares "no hammers allowed" for no apparant reason I will dismiss them as a nut and tell them to go away.

The overhead is usually minimal when compared to the complexity and maintainability issues of most of the alternatives for someone who is new to ASP.Net as the asker stated.

But we can let the asker decide. The following article discusses some of the trade-offs and alternate methods. UpdatePanel Tips and Tricks[^]

Re: stop page reloading in asp.net

Rutvik Dave30-Mar-10 8:42

Rutvik Dave

30-Mar-10 8:42

Ok my friend thats too much use of "Sir" in your post... Big Grin | :-D

Re: stop page reloading in asp.net

MyDevBank31-Mar-10 10:17

MyDevBank

31-Mar-10 10:17

Sir nobody and use Jquery Ajax
look at this http://api.jquery.com/jQuery.ajax/[^]
or read this http://mydevbank.com/ajax.aspx[^]

Re: stop page reloading in asp.net

Rutvik Dave30-Mar-10 8:52

Rutvik Dave

30-Mar-10 8:52

Lets assume you have a combo box called cmbList and 3 label lblDisplayText, lblDisplayValue, lblSelectedIndex on the page. use the following script to get the value and fill the labels...

window.onload = function(){
var list = document.getElementById("cmbList"); // put the name of the combobox control
list.onchange = function(){
document.getElementById("lblDisplayText").value = list.options[list.selectedIndex].text;
document.getElementById("lblDisplayValue").value = list.options[list.selectedIndex].value;
document.getElementById("lblSelectedIndex").value = list.selectedIndex;
//window.alert("Selected item is " + list.options[list.selectedIndex].text + " and its option value is " + list.options[list.selectedIndex].value);
}
}

to make sure you can remove commented code.

performance issue

RajpootRohan30-Mar-10 1:53

RajpootRohan

30-Mar-10 1:53

Hi to all,

I know its a common question. But I want to share something. Actually I am working on e-commerce portal. It consists of 32000 products with around 2500 categories. I used 3-tier architecture for this project. Everything is coming using stored procedures. I used master pages as well.

But still I am fighting with the performance issue. Can anyone please tell me some useful steps to increase the speed of the website. Its taking ages to load the pages.

waiting for your assistance....

cheers,
sneha

Re: performance issue

R. Giskard Reventlov30-Mar-10 2:20

R. Giskard Reventlov

30-Mar-10 2:20

First question might be: are you loading all of the records into a grid at startup? Perhaps you should look at only loading an appropriate subset of records.

You could also look at caching data and settings that don't change very often.

There are also a couple of articles on CP (you'll have to find them for yourself) which give good tips on how to optimise your application.

You could also use analysis tools (like Fiddler) to see what the application is doing or analyse the stored procedures; look at the explain plans and try to speed them up. Do they have the correct/any indexes?

That barely scrathces the surface and is a guess about your needs: you should be more specific about where the bottlenecks are occurring but should get you started.

me, me, me

"The dinosaurs became extinct because they didn't have a space program. And if we become extinct because we don't have a space program, it'll serve us right!"
Larry Niven

Re: performance issue

Jens Meyer30-Mar-10 2:27

Jens Meyer

30-Mar-10 2:27

In addition to other ideas I would suggest to fire up a profiler like the one from redgate (ants profiler it is, i believe) to see what takes so long to render your page.

When in trouble,
when in doubt,
run in circles,
scream and shout

Re: performance issue

Member 450194030-Mar-10 3:45

Member 4501940

30-Mar-10 3:45

Agree with digital man. First thing to look at is SQL.
Also, does the site have images for the products? Are these optimized? How are they handled? Are you storing in db?
Need to see some code to help more...

Re: performance issue

MyDevBank31-Mar-10 10:24

MyDevBank

31-Mar-10 10:24

what about caching ? and how long takes a page to render?

i get an error when use session in the Apllication_BeginRequest [modified]

ARIA 530-Mar-10 1:35

ARIA 5

30-Mar-10 1:35

Hiiiiiiiiiiiiiiiii,
I am trying to access session variable value from the
'Application_BeginRequest' handler in the global asax file but get the
message - 'Session state not available in this context'
therefore I use
:

void Application_BeginRequest(object sender, EventArgs e)
    {
            string p = Request.Path.Substring(Request.Path.LastIndexOf("/") + 1);
            if (p != "exit.aspx")
            {
                Session.Add("myPath", p.ToString());
            }
    }

but the session state is not available in this context. is there another way to do this?
thanks.

modified on Tuesday, March 30, 2010 7:54 AM

Re: i get an error when use session in the Apllication_BeginRequest

Dinesh Mani30-Mar-10 2:00

Dinesh Mani

30-Mar-10 2:00

This is just a suggestion, just give it a shot.

I think you would get this error only on the first request to your application. Check if the session is empty and if so do nothing, else add the page to your session.

Alternate suggestion - why not use the SessionStart for the first request and beginrequest for the subsequent request?? You can handle it by using the above suggestion.

BTW, looking at what you are trying to do, I think there is a control that can provide this functionality without much code [SiteMapPath]. Find details here[^] and here[^]

Re: i get an error when use session in the Apllication_BeginRequest [modified]

ARIA 530-Mar-10 3:11

ARIA 5

30-Mar-10 3:11

thank you very much, Rose | [Rose]

I understand that Apllication_BeginReguest
event is fired for every hit to every page in the site
Therefore i want check path in application_beginrequest event and store in session["mypath"] and if session["maypath"]
not equal whit exit.aspx then onlineuser--
session["mypath"] created in session_Start event,
i use this code:

 HttpContext.Current.Session["mypath"] = Request.Path.Substring(
Request.Path.LastIndexOf("/") + 1);

but get the error 'Object reference not set to an
instance of an object'
summary:
i want when exit.aspx is closed then onlineuser--
Now,how to i can understand that exit.aspx is closed or opened??
Anyone know how you get at this??
Thanks in advance.

modified on Tuesday, March 30, 2010 9:18 AM

Re: i get an error when use session in the Apllication_BeginRequest

T M Gray30-Mar-10 6:28

T M Gray

30-Mar-10 6:28

What exactly are you trying to accomplish? Everywhere that has access to Session has access to the Request object as well. Adding the information you already have in the request is just wasting memory.

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.