Ajax in aspx page - ASP.NET Discussion Boards

devenneym21-Oct-10 9:59

21-Oct-10 9:59

I want to create (or borrow if one exists) a "news ticker" for our website that aggregates RSS feeds from vendors and news outlets into a section of our webpage. I want to maintain the functionality of being able to click through to the stories as you would when using an RSS reader. Is there something out there that already exists and I'm just not looking for the right thing? I know I've seen this on other websites and was just wondering if this is something that every website has developed on their own? Any help is much appreciated, thanks!

System.FormatException: String was not recognized as a valid DateTime

Asif Rehman21-Oct-10 1:18

Asif Rehman

21-Oct-10 1:18

When I don't pass certain value in textbox. It gives me above exception.
Here's the code.

cmd.Parameters.Add("DOB", SqlDbType.SmallDateTime).Value = txtDOB.Text;

I want to ignore NULL values. How to tackle this problem.

I know it should have been easy. But anyhow, I stuck .

Regards
Asif Rehman

Re: System.FormatException: String was not recognized as a valid DateTime

Pete O'Hanlon21-Oct-10 1:25

Pete O'Hanlon

21-Oct-10 1:25

If the value in txtDOB.Text is a null or whitespace character, you need to set Value to DBNull.Value.

I have CDO, it's OCD with the letters in the right order; just as they ruddy well should be

Forgive your enemies - it messes with their heads

My blog | My articles | MoXAML PowerToys | Onyx

Re: System.FormatException: String was not recognized as a valid DateTime

Asif Rehman21-Oct-10 1:37

Asif Rehman

21-Oct-10 1:37

thanks for quick response.

So to my best understanding, I can replace

old phrase

cmd.Parameters.Add("DOB", SqlDbType.SmallDateTime).Value = txtDOB.Text;

with this one

cmd.Parameters.Add("DOB", SqlDbType.SmallDateTime).Value =  (string.IsNullOrEmpty( txtDOB.Text)) ? DBNull.Value.ToString() : txtDOB.Text;

Is there any way shorter to do this.

Regards
Asif Rehman

Re: System.FormatException: String was not recognized as a valid DateTime

Pete O'Hanlon21-Oct-10 1:55

Pete O'Hanlon

21-Oct-10 1:55

I normally use a utility method like this:

public static object GetValueForParameter(string value)
{
  if (!string.IsNullOrWhitespace(value))
    return value;
  return DBNull.Value;
}

Then you can replace your code with cmd.Parameters.Add("DOB", SqlDbType.SmallDateTime).Value = Utility.GetValueForParameter(txtDOB.Text);

I have CDO, it's OCD with the letters in the right order; just as they ruddy well should be

Forgive your enemies - it messes with their heads

My blog | My articles | MoXAML PowerToys | Onyx

Thanks It works.

Asif Rehman21-Oct-10 2:15

Asif Rehman

21-Oct-10 2:15

Thanks. It works.

Regards
Asif Rehman

Re: Thanks It works.

Pete O'Hanlon21-Oct-10 2:57

Pete O'Hanlon

21-Oct-10 2:57

You're welcome. Thanks for letting me know.

I have CDO, it's OCD with the letters in the right order; just as they ruddy well should be

Forgive your enemies - it messes with their heads

My blog | My articles | MoXAML PowerToys | Onyx

Ajax in aspx page

Morgs Morgan20-Oct-10 22:54

Morgs Morgan

20-Oct-10 22:54

hi guys,
i just developed an easy ajax enabled page. but whenever i execute an ajax script i get an error:
'Access is denied'.
this site is running on the server and accessing it from my local machine.
is there anyone who knows why my ajax calls to the server are being denied?

Please help me.
Regards,Morgs

Re: Ajax in aspx page

Blue_Boy20-Oct-10 23:30

Blue_Boy

20-Oct-10 23:30

Take and look this google result.[^]

I Love T-SQL
"Don't torture yourself,let the life to do it for you."
If my post helps you kindly save my time by voting my post.

www.aktualiteti.com

popup window open automatically when a row inserted to the table

Ahamed Azeem20-Oct-10 22:33

Ahamed Azeem

20-Oct-10 22:33

hi guys,, i want to open a model popup extender when a row inserted to the particualar table

now i can open a model popup window manually but i want it to be done automatically if a row inserted to the table in sql server 2005

Please let me know as soon as possible

Ahamed Azeem
software Programmer

Re: popup window open automatically when a row inserted to the table

Morgs Morgan20-Oct-10 23:06

Morgs Morgan

20-Oct-10 23:06

if u want to do it from codebehind, make your main div to runat="server" so that you can access it from codebehind.
e.g.

my popup content

After the code for inserting a new row executes the very last thing u must now do is to show the modal.
e.g.

public void InsertTableRow()
{
   //here i have inserted a new row into my table..

   //now i will show the updates in a popup modal like so:
   popupModal.Style.Value = "display:block;";
   //watch here, am applying new style for this div on a div-id, which then mean that all your fancy css styles should be appended to your class(e.g. myPopupClass). if u include all your css on your id and u execute the above code to show your modal the css is going to be overwritten....
}

hope that helps...

Re: popup window open automatically when a row inserted to the table

Prerak Patel20-Oct-10 23:11

Prerak Patel

20-Oct-10 23:11

You can use Open() method of ModalPopupExtender in code behind when new row is added.

Dataset VS SQL Server Database

future383920-Oct-10 16:09

future3839

20-Oct-10 16:09

Hi,
I am developing ASP.net and VS2010; I am using MVC; I right click on Model Folder to choose an Data Model; just wondering to know what is difference between Dataset and SQLServerDatabase?

Re: Dataset VS SQL Server Database

Brij20-Oct-10 17:56

Brij

20-Oct-10 17:56

Dataset are inmemory objects, these are used to store data (in table form).We fetch data from the databse, fill it in databse. Now we do our manipulation in the dataset and show the results accordingly. .NET provides the facility to do most of the opertaion that we can do with database table. We use dataset , when there is low no records in resultant table.

While SQLServerDatabase, we store in database. Ther are stored in files at harddisk.Obusly we have bit more flexibility over dataset. If number of records are higher, we use databse for all the manipulation..

Cheers!!
Brij
Visit my Blog: http://brijbhushan.net

Check my latest Article :ViewState - Various ways to reduce performance overhead

Advantages of .ashx pages.

anoop_m8320-Oct-10 13:23

anoop_m83

20-Oct-10 13:23

what are the advantages of .ashx pages and how can I write Html tags in ashx file?

Sample url
Page Extension is ASHX[^]

Re: Advantages of .ashx pages.

Brij20-Oct-10 17:47

Brij

20-Oct-10 17:47

We used to write HTTP Handlers at certain situations in our applications. In traditional way, writing Handlers needs to several steps. To avoid these, ASP.NET provides a way to write the HTTP Handler by just using a .ashx files.
We use Handlers, to handle certain situations like, if we want to process some different file extensions,for changing themes etc..

for details, have a look to followng links..

Click here 1
Click here 2

Cheers!!
Brij
Visit my Blog: http://brijbhushan.net

Check my latest Article :ViewState - Various ways to reduce performance overhead

Re: Advantages of .ashx pages.

anoop_m8321-Oct-10 1:14

anoop_m83

21-Oct-10 1:14

ok thanks for the links.
one more doubts, how to handle click events below submit button in the .ashx page.

context.Response.Write(
  "<input type=submit name='Lookup'
value='Lookup'></input>");

Further to the "validation on string" post below

NeverHeardOfMe19-Oct-10 23:37

NeverHeardOfMe

19-Oct-10 23:37

I have to say that, given the importance of validating user input against SQL Injection, XSS and the like, that someone (.. Microsoft themsleves, as a .NET class) haven't written a comprehensive class library to take care of this. Client side validation doesn't count - though having said that, the routines used for that must go some way at least towards a solution.

I know that the new .NET validation server controls can validate server-side, but they still expect the user to define (too much) in terms of pattern matching, for example. i.e., they are too complex; what is really needed is something much simpler that just returns True or False depending on whether the input is a potential threat in terms of SQL Injection or XSS. Whether they've entered the correct data in the correct field is another issue.

I know it's a tricky task, but surely not beyond the wit of one of you eggheads out there Smile | :)

But perhaps I've missed it, and there are such libraries available...

validation on string

gautamamit819-Oct-10 19:59

gautamamit8

19-Oct-10 19:59

Hi all

I need to validate a string to allow html or simple text but not script language means a textbox can accept bold, italic tag of html
but not script tag like alert("hi");
how can i do this

Any help would be appreciated..

Amit

Re: validation on string

Anurag Gandhi19-Oct-10 20:18

Anurag Gandhi

19-Oct-10 20:18

Just check the <script tag.

if(txtBox.Text.Contains("<script")
    //This text contains script.//

Anurag Gandhi.
http://www.gandhisoft.com
Life is a computer program and every one is the programmer of his own life.
My latest article: Group GridView Data

Re: validation on string

DaveAuld19-Oct-10 21:20

DaveAuld

19-Oct-10 21:20

It takes a bit more than that............

what about if the symbols are encoded, what about if the user puts whitespace between the symbol and the 's' there are various other things to think about.

Search Google, there are various articles relating to Validating User Input and limited HTML;
e.g.
http://www.brainhandles.com/techno-thoughts/form-validation-php-html[^]

Dave
Find Me On: Web|Facebook|Twitter|LinkedIn

CPRepWatcher now available as Packaged Chrome Extension, visit my articles for link.

Help printing .rdl reports using the asp ReportViewer control from a web page to the users client printer.

Steve Holdorf19-Oct-10 6:02

Steve Holdorf

19-Oct-10 6:02

I have developed a set of ssrs .rdl reports and am trying to display them from the reportviewer control embeded in my asp web page. The problem is that when I select the print icon on the reportviewer I am prompted to install ms sql server. I need help here. What is the best way to print .rdl reports from the web page's embeded reportviewer control to the client's local network printer?

Thanks,

Steve

Re: Help printing .rdl reports using the asp ReportViewer control from a web page to the users client printer.

Steve Holdorf19-Oct-10 8:24

Steve Holdorf

19-Oct-10 8:24

After doing some research it appears that using the RsClientPrint ActiveX control is the way to go. Is this correct? Now if this is the best way to do what I want how would I initially install it on every client machine that is accessing my website? Any help with this would be great!. Also, is there a way to set the reportviewer print layout to legal size by default?

Thanks,

Steve Holdorf

Re: Help printing .rdl reports using the asp ReportViewer control from a web page to the users client printer.

Steve Holdorf19-Oct-10 12:10

Steve Holdorf

19-Oct-10 12:10

Re: Just to clairfy my last post. When I said that I wanted to set the reportview print to legal size I mean portrait mode on legal size paper. Again, any help would be great!

codeproject host?!

Jassim Rahma19-Oct-10 5:14

Jassim Rahma

19-Oct-10 5:14

I have a question..

where is codeproject.com hosted? with which company?

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