Re: asp.net session expired continuously while i am working in my app and making transactions i became logged out...need help? - ASP.NET Discussion Boards

indian1435-Jun-12 23:39

5-Jun-12 23:39

Hi,

I have following two expressions in my for loop, I don't know how to debug them.

(i = j + k) < 30;

j = (k = j) < 0 ? i : i

These expressions are used in the following for loop

for (int i = 3, j = 0, k = 1; (i = j + k) < 30; j = (k = j) < 0 ? i : i)

What is the o/p of these expressions, I haven't used these type of expressions in my coding. Can anybody please help me, any idea, or link or any example would be greatly appreciable. Please help me I am in need.

Thanks & Regards,

Abdul Aleem Mohammad
St Louis MO - USA

Re: Unable to debug these expressions

Bernhard Hiller7-Jun-12 22:36

Bernhard Hiller

7-Jun-12 22:36

Where did you find that weird code for generating a Fibonacci series?
Well, that's what I found when debugging. Why is debugging complicated?

for (int i = 3, j = 0, k = 1; (i = j + k) < 30; j = (k = j) < 0 ? i : i)
{
    System.Diagnostics.Debug.WriteLine(string.Format("i={0}, j={1}, k={2}", i, j, k));
}

Stepping thru it, you'll see that the start value of i can be anything, because it will be set to j+k when the condition for the loop is checked.
And j = (k = j) < 0 ? i : i always does k=j followed by j=i, only written in a way to obfuscate things.

asp.net session expired continuously while i am working in my app and making transactions i became logged out...need help?

ma.amer5-Jun-12 23:20

ma.amer

5-Jun-12 23:20

asp.net session expired continuously while i am working in my app and making transactions i became logged out...

Re: asp.net session expired continuously while i am working in my app and making transactions i became logged out...need help?

Pankaj Nikam6-Jun-12 0:23

Pankaj Nikam

6-Jun-12 0:23

Extend the session timeout in the webconfig by

XML

<system.web>
         <sessionState timeout="540"/> 
</system.web>

Always Keep Smiling.
Yours Pankaj Nikam

Re: asp.net session expired continuously while i am working in my app and making transactions i became logged out...need help?

ma.amer6-Jun-12 0:58

ma.amer

6-Jun-12 0:58

thanks, but why this number "540" ?

Re: asp.net session expired continuously while i am working in my app and making transactions i became logged out...need help?

Richard MacCutchan6-Jun-12 2:56

Richard MacCutchan

6-Jun-12 2:56

ma.amer wrote:
but why this number "540" ?

Why not? You can choose any number that allows you to complete your work.

speaking as ...

Re: asp.net session expired continuously while i am working in my app and making transactions i became logged out...need help?

Pankaj Nikam6-Jun-12 7:45

Pankaj Nikam

6-Jun-12 7:45

Richard MacCutchan wrote:
Why not? You can choose any number that allows you to complete your work.

Exactly... It suited me... Smile | :)

Always Keep Smiling.
Yours Pankaj Nikam

Re: asp.net session expired continuously while i am working in my app and making transactions i became logged out...need help?

Paul Conrad6-Jun-12 9:14

Paul Conrad

6-Jun-12 9:14

It does not have to be specifically 540, you can make it any length of time that you deem it to be necessary. According to documentation, it is the number of minutes until time out.

""Real programmers just throw a bunch of 1s and 0s at the computer to see what sticks" - Pete O'Hanlon

Re: asp.net session expired continuously while i am working in my app and making transactions i became logged out...need help?

ma.amer6-Jun-12 21:52

ma.amer

6-Jun-12 21:52

so ... I have new Error after i add the the session state in the web config file.
the error is...
"HTTP Error 503. The service is unavailable."

Flash Object Socket in asp.net

Zeyad Jalil5-Jun-12 20:23

Zeyad Jalil

5-Jun-12 20:23

Hi All,

We develop an asp.Net web application and we use a flash object(javascript) to create a socket and connect it to an tcp ip server on port 7900.

when the flash socket created the security error #2048
was shown, i try to solve it but i can't.

please help me if you can.

Thanks all.

Upload an Excel to Sql table

comeshyamala5-Jun-12 19:29

comeshyamala

5-Jun-12 19:29

How to upload an excel sheet into sql server table through asp.net webpage?

Re: Upload an Excel to Sql table

egenis5-Jun-12 21:06

egenis

5-Jun-12 21:06

Upload the file.
Parse the file.
Build up a sql query/linq object from the data read in from the excel spread sheet
Submit data to the sql db.

Here is a Code Project article that'll show you the process...

C# web form delegates

classy_dog5-Jun-12 13:33

classy_dog

5-Jun-12 13:33

In a C# 2010 web form application, I need to make a change where some logic is hard-coded and I want to obtain the values from a sql server 2008 r2 database.
Before I make any changes, I want to make certain I understand how the existing logic work.
In a microsoft training class for C#.net, I learned about delegatesand worked on 'labs' to teach you the concepts.

When you look at the code I listed below:

LabelCustomerName.Text += transaction.CustomerName;
 LabelCustome_Status.Text += transaction.Customer_Status;

you can see the customer name and customer_status are placed into
textboxes.

I am guessing that the fields to the right of the += are delegates.
If this is true, can you tell me how to find the original location where the values are obtained from?

If these are not delegates, can you tell me and/or point me to a reference that will help me determine where the orginal values are obtained from?

Should I use system.reflections? If so, can you tell me what code to use so I would know how to use system.reflections?

Re: C# web form delegates

Abhinav S5-Jun-12 16:16

Abhinav S

5-Jun-12 16:16

In this particular case, the fields on the right are not delegates (i.e. in C terms, a function pointer).
This is an assignment operator. This does a simple concatenation on the LabelCustomerName.Text value.

You can read more about this operator here[^].

A delegate is added to an event / eventhandler combination.
For e.g. if you had used the Label's Keydown event, you could have added a delegate that allowed a certain method to execute everytime keydown fired.

E.g. LabelCustomerName.KeyDown += MyMethod(object sender, KeyEventArgs e);

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Reporting structure in asp.net

sarojcode5-Jun-12 9:33

sarojcode

5-Jun-12 9:33

What is the way to develope report in asp.net

Re: Reporting structure in asp.net

Paul Conrad5-Jun-12 10:40

Paul Conrad

5-Jun-12 10:40

There's several different ways. You can use Crystal Reports or any reporting tools out there. A google search will bring up quite a few for you.

You may want to look into Microsoft Reporting Services[^]

""Real programmers just throw a bunch of 1s and 0s at the computer to see what sticks" - Pete O'Hanlon

Re: Reporting structure in asp.net

Abhinav S5-Jun-12 16:18

Abhinav S

5-Jun-12 16:18

You can choose from one of various tools / third parties available i.e. Crystal reports, Active reports etc.

Using the ASP.NET 2.0 ReportViewer in Local Mode[^] uses the report viewer control.

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Grid in ASP.Net

basitsar5-Jun-12 5:26

basitsar

5-Jun-12 5:26

Dear All,

Which third party grid is best for asp.net. I'm looking for grid for transaction purpose where can add multiple rows from client side.

Thanks
Basit.

Re: Grid in ASP.Net

R. Giskard Reventlov5-Jun-12 5:34

R. Giskard Reventlov

5-Jun-12 5:34

The last one I used for that purpose was from: Infragistics[^]. Worked pretty well. I think the're all very similar: one may have a few features the other don't and so on. You need to look at as many as you can and decide which is the best fit for your purpose.

"If you think it's expensive to hire a professional to do the job, wait until you hire an amateur." Red Adair.
nils illegitimus carborundum

me, me, me

Re: Grid in ASP.Net

Sandeep Mewara5-Jun-12 5:59

Sandeep Mewara

5-Jun-12 5:59

basitsar wrote:
Which third party grid is best for asp.net

That would depend on your need, usage & comfort-ability with a given third party. I would say it would be individual's choice from below list:
1. DevExpress
2. Infragistic
3. Telerik

Have a look at all three, evaluate by yourself. All have good controls, knowledge-base and support forums.

Sandeep Mewara
[My last tip/trick]: Server side Delimiters in ASP.NET[^]

Re: Grid in ASP.Net

David Mujica5-Jun-12 6:03

David Mujica

5-Jun-12 6:03

I'm a big fan of DeveloperExpress.

http://www.devexpress.com/[^]

Their Grid control is amazing along with their other tools.

BTW: I've actually met some of the engineers at a meet & greet in NYC about a year ago ... very cool to talk with them.

My 2 cents.
Thumbs Up | :thumbsup:

Re: Grid in ASP.Net

taha bahraminezhad Jooneghani5-Jun-12 6:18

taha bahraminezhad Jooneghani

5-Jun-12 6:18

I think Telerik is the best!
its rad grid have a wonderful Facilities filtering for every column with to many filter, and grouping by drag and drop , handling too many scenario , and perfect examples and documents!

Re: Grid in ASP.Net

ZurdoDev5-Jun-12 7:40

ZurdoDev

5-Jun-12 7:40

"Best" is of course different depending on what you need. InterSoft[^] has a great grid and has a batch update feature which allows you to add as much as you like client side, or delete of course, and then process in a batch.

There are only 10 types of people in the world, those who understand binary and those who don't.

Re: Grid in ASP.Net

thatraja5-Jun-12 15:01

thatraja

5-Jun-12 15:01

Also check Obout grid.

thatraja

FREE Code Conversion VB6 ASP VB.NET C# ASP.NET C++ JAVA PHP DELPHI ColdFusion
HTML Marquee & its alternatives

Nobody remains a virgin, Life screws everyone Sigh | :sigh:

Re: Grid in ASP.Net

Abhinav S5-Jun-12 17:20

Abhinav S

5-Jun-12 17:20

Try DevExpress or Infragistics.

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