ASP.NET

Re: Application_End () problem

29-Jan-09 11:12

well this is the solution for signout button only,
my major problem is with BROWSER closing event... i have to delete user's id from ONLINE table at this event.
My website is about chatting.... thats why this user's online/offline state is very important to manage... i cant let user's status remain be online if he/she has closed the application from browser...

Frown | :(

$@N@

N a v a n e e t h29-Jan-09 15:01

N a v a n e e t h

29-Jan-09 15:01

This is asked frequently. No events are fired on the server when user closes the browser window. You can follow any of the following suggestions.

1 - Hook a JS method for the browser close event, do AJAX call which delets the record from database. This is less reliable as JS can be turned off from the client.

2 - Keep users last request time in the table. Run a SQL scheduler job which scans this table frequently and if the current time minus last active time is more than the session timeout limit, delete the record. I suggest this method as this is more reliable than the first one.

Does that help?

Smile | :)

Navaneeth

How to use google | Ask smart questions

changing property of some other form's control?

Tarun.Suneja29-Jan-09 7:38

Tarun.Suneja

29-Jan-09 7:38

hi frndz,
i wanna ask can i change text property of a label of some other webform(.aspx) in current webform(.aspx)

with thanks
Tarun Suneja

Re: changing property of some other form's control?

ToddHileHoffer29-Jan-09 7:48

ToddHileHoffer

29-Jan-09 7:48

You should only be displaying one webform(.aspx) at a time.

You can pass values from one to another via querystring or storing in session.

Then set the value of the next page on page load.

Don't forget

if (!ispostback)
{
}

I didn't get any requirements for the signature

Re: changing property of some other form's control?

Tad McClellan29-Jan-09 11:04

Tad McClellan

29-Jan-09 11:04

If you don't want to use a postback you can try using javascript. Something like ...

window.parent.document.getElementById("X")

TadMcClellan.Com

[newbie] Validating a date

jon-8029-Jan-09 6:53

Re: [newbie] Validating a date

29-Jan-09 6:53

I'm trying to validate a date, however, somehow the same code is not working within one project whilst it is working on the "test" project.

I've also noted that although the OS regional options format is set to dd/mm/yyyy, the format returned by another control (in my case a grid view), is in the following format: 3/31/2009 12:00:00 AM. Is it possible that .NET has its own "default setting"? Information would be appreciated.

I also tried checking the other methods accepted by DateTime.Parse. It would be appreciated if you could guide me as to what they usually mean.
Specifically what options should I fill in for IFormatProvider (a dummy value?) and System.Globalization.DateTimeStyles.

I've skimmed the web high and low so far and haven't found any specific info so far.

Any idea why?

//Validation 2: Date format [dd/mm/yyyy]
            DateTime _dateToValidate;
            if (DateTime.TryParse(txtIdealDeliveryDate.Text, out _dateToValidate) != true)
            {
               Response.Write("Invalid date format for Ideal Delivery Date.  Please leave empty or update date in [dd/mm/yyyy] format");
                ButtonMode = multifunctionButtonFunction.NoUpdate;
            }

.NET Framework 2.0

Related links:
http://msdn.microsoft.com/en-us/library/97x6twsz(VS.80).aspx[^]

Jon

N a v a n e e t h29-Jan-09 7:26

N a v a n e e t h

29-Jan-09 7:26

If I understood you correctly, you want to validate the date and allow only dd/mm/yyyy format. Correct? If yes, following code will do it

string dateString = "3/31/2009 12:00:00 AM"; // works well for 31/3/2009 12:00:00 AM
string dateFormat = "dd/M/yyyy h:mm:ss tt";
DateTime dateTime;
if (!DateTime.TryParseExact(dateString,dateFormat, 
         CultureInfo.InvariantCulture, DateTimeStyles.None, out dateTime))
    // Invalid date format
else
    // Correct! Validated successfully

I am on linux now and I haven't tested the above code. But looks like it will do the job.

Navaneeth

How to use google | Ask smart questions

Re: [newbie] Validating a date

ToddHileHoffer29-Jan-09 7:53

ToddHileHoffer

29-Jan-09 7:53

Also it easy to use an asp.net validator control.

<code>

<asp:comparevalidator id="TargetDateValidator" runat="server" type="Date" operator="DataTypeCheck" display="dynamic"
ValidationGroup="Default" ErrorMessage="The target date is not valid format = "mm/dd/yyyy" ControlToValidate="TargetDateTextBox"></asp:comparevalidator>

</code>

I didn't get any requirements for the signature

one webform to other

Tarun.Suneja29-Jan-09 6:33

Tarun.Suneja

29-Jan-09 6:33

hi frndz,
i am working with a project and stuck sumwhere. i need sum help regarding that.

actually i have some items in one dropdownlist of a webform(.aspx page). i want the selected value to be transferred to a textbox in other webform(second .aspx page).

i'll be thankful to u if u can help me......

with thanks...
Tarun Suneja

Rutvik Dave29-Jan-09 6:45

Rutvik Dave

29-Jan-09 6:45

You need to read about Session in ASP.Net, you can find some nice atricles on CodeProject.

anyways quick answer is:

On the First Page. at "DropDownList" : "SelectedIndexChanged" event.
store the value in the Session.

i.e.

Session["_Value"] = DropDownList1.Text

And on Second Page. at Page Load event.
get the value stored in the session.

i.e.

TextBox1.Text = (string) Session["_Value"];

Tarun.Suneja29-Jan-09 7:35

Tarun.Suneja

29-Jan-09 7:35

thanx buddy

thanx alot

N a v a n e e t h29-Jan-09 6:54

N a v a n e e t h

29-Jan-09 6:54

Pass it as query string if the information is not secured.

Navaneeth

How to use google | Ask smart questions

[newbie] System.Web.UI.WebControls.GridView.SelectedRowStyle - Different color?

Ashutosh Phoujdar29-Jan-09 21:06

Ashutosh Phoujdar

29-Jan-09 21:06

Try this :

Respose.Redirect("~/second.aspx page?selectedValue=" + DropDownList1.SelectedValue.ToString()

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jon-8029-Jan-09 6:25

Re: [newbie] System.Web.UI.WebControls.GridView.SelectedRowStyle - Different color?

29-Jan-09 6:25

I'm using a gridview in order to display some information from a database, and, I would like to make it obvious to the user which row they have selected.

Control: System.Web.UI.WebControls.GridView

I have set:

SelectedRowStyle > BorderColor to Black
SelectedRowStyle > BorderStyle to Dotted

Do I need to set anything else?

Confused | :confused:

Jon

Frauke29-Jan-09 23:35

Frauke

29-Jan-09 23:35

I think you've got it.

If you're just starting with data access, you may find this series of tutorials useful: http://www.asp.net/learn/data-access/[^]

Helped me no end when I started.

Frauke Nonnenmacher

Creative Cats

Re: [newbie] System.Web.UI.WebControls.GridView.SelectedRowStyle - Different color?

jon-8030-Jan-09 8:38

Re: [newbie] System.Web.UI.WebControls.GridView.SelectedRowStyle - Different color?

30-Jan-09 8:38

Cheers

Jon

jon-8030-Jan-09 0:35

FormView last inserted ID into Access database

30-Jan-09 0:35

I asked because somehow the link color still hasn't changed on IE7, when the "user" selects the row from the gridview.

Jon

Mohammad Al Hoss29-Jan-09 2:53

Mohammad Al Hoss

29-Jan-09 2:53

Hi I am using AccessdataSource with a formView and I have an Auto number column called PID how can i get the PID value of the inserted redord I am using VB.Net please help thanks.

Mohammad Al Hoss

Development To Me Is A Pleasure more than a Job

Re: FormView last inserted ID into Access database

led mike29-Jan-09 4:24

led mike

29-Jan-09 4:24

Mohammad Al Hoss wrote:
please help thanks.

Sure why not, here you go[^]

FILE UPLOAD control

sana1729-Jan-09 2:29

29-Jan-09 2:29

ASALAMOALEKUM ALL,

I am using fileupload control in my website to allow user to uplaod a display picture for its profile page.
The problem is fileupload1.filename takes only filename not the whole path and while using the following

fs = new FileStream(@imagename, FileMode.Open, FileAccess.Read);

FileAccess.Read is throwing exception that the requested file is not on the root path i.e;

for eg: if user browse an image to be uploaded from path E:\IMAGES\pic001.jpg

string imagename = fileupload1.filename ....
(it results:- imagename=pic001.jpg)

now at point FileAccess.Read it throws exception that :
"Could not found C:\MyDocuments\Project\pic001.jpeg"

where: C:\MyDocuments\Project is the root path for my project.

PLEASE tell me how to solve thisss so i could upload image file from any path from the system??

Thanks,
Regards,
SANA

$@N@

J4amieC29-Jan-09 2:36

J4amieC

29-Jan-09 2:36

well how about that, using your exact thread title in google[^] gives a bunch of really useful pages right at the start of the search results.

How about you read the documentation for the file upload control, and if its still not clear feel free to post back Smile | :)

sana1729-Jan-09 8:10

29-Jan-09 8:10

thanks!

$@N@

Paddy Boyd29-Jan-09 2:45

Paddy Boyd

29-Jan-09 2:45

I think you are going about this in the wrong fashion - the upload control has a property called PostedFile that will contain the data that has been uploaded - you need to access this.

Your code above is running on your server, so has no way of accessing the client's machine...

There are a number of good articles out there about doing this.

sana1729-Jan-09 8:10

29-Jan-09 8:10

thankss..

$@N@