Selecting picture by open file dialoguebox and showing it in imagebox in ASP.NET - ASP.NET Discussion Boards

Dinesh Mani10-Jan-10 23:05

10-Jan-10 23:05

I assume GridViewDeleteEventArgs e has a row index just like the Update event arg. So, you can use it to get the gridview row and use it to get the datatable row just like what you have done for edit.

I've just got these out of the original code that you posted and modified it slightly -

GridViewRow row = dgInfoProfile.Rows[e.RowIndex];
dt.Rows[row.DataItemIndex].Remove();

Try on these lines and I'm sure you must be able to get it to work!

Re: Delete record in Gridview

Nopo10-Jan-10 23:23

Nopo

10-Jan-10 23:23

Thanks. There are two event for delete, one is RowDeleting and the other is RowDelete. I tried with RowDeleting. they both don't have Remove() method, thereforre i tried Delete().

GridViewRow row = dgSendFeedbackTo.Rows[e.RowIndex];
dt.Rows[row.DataItemIndex].Delete();

I get the following error when debugging:
"There is no row at position 1."

Re: Delete record in Gridview

Dinesh Mani10-Jan-10 23:32

Dinesh Mani

10-Jan-10 23:32

I'm sorry Nopo, I don't have access to VS at this point it time so I cannot help you out on the error message.

But, going by the looks of it try reducing the value of DataItemIndex. May be it might work.

Re: Delete record in Gridview

Nopo11-Jan-10 2:51

Nopo

11-Jan-10 2:51

Hi Dinesh,

I've got it right. Wink | ;)

protected void dgSendFeedbackTo_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
DataTable dt = (DataTable)Session["dtFeedback"];
dt.Rows[e.RowIndex].Delete();
this.BindData();
}

Thanks a lot for all your help.

Re: Delete record in Gridview

Dinesh Mani11-Jan-10 18:35

Dinesh Mani

11-Jan-10 18:35

Problem with Remember password

Sudhanshu Mani Tripathi10-Jan-10 19:33

Sudhanshu Mani Tripathi

10-Jan-10 19:33

I am using cookies to remember userid and password .It works fine.
I am using ImageButton Conrol instead of simple button.
my problem is that when i click image button, remembered password is going to blank (IE)
In mozilla it not happened but first time button click event is not fired when i click second time
then button event fire.(it means we have to click image button two times )

Re: Problem with Remember password

lxdx10-Jan-10 19:48

lxdx

10-Jan-10 19:48

I haven't meet this problem。

Selecting picture by open file dialoguebox and showing it in imagebox in ASP.NET

Abdullah Al-Muzahid10-Jan-10 19:31

Abdullah Al-Muzahid

10-Jan-10 19:31

Hello Everyone,
I have an image box in an ASP.NET page. I have a button on that page. When user clicks on the button, an open file dialogue box will appear and the selected picture will be shown in the image box. Can anyone help me by providing the codes of that.....

Re: Selecting picture by open file dialoguebox and showing it in imagebox in ASP.NET

lxdx10-Jan-10 19:50

lxdx

10-Jan-10 19:50

what's your Email?I will send a example to you!

Re: Selecting picture by open file dialoguebox and showing it in imagebox in ASP.NET

Abdullah Al-Muzahid10-Jan-10 20:03

Abdullah Al-Muzahid

10-Jan-10 20:03

Thax 4 ur reply.
My e-mail: jahidbbd@gmail.com

magic numbers when debug in a webform

meeram39510-Jan-10 19:11

meeram395

10-Jan-10 19:11

In my aspx page, when I try to debug the application, there are some int variables which shuld give the value in int. However, when i checked the value at the time of debugging, I am getting the values like 0x00002713, 0x000000, 0x00005249 etc. Not sure what this is meant. This is happening very recently.

I didn't change any settings. Any idea what is happening? Even there is a count variable which is also giving the value in above format? I don't know how to fix this? Confused | :confused:

Can anybody please help me on this?

Thanks
meeram395

Success is the good fortune that comes from aspiration, desperation, perspiration and inspiration.

Re: magic numbers when debug in a webform

J a a n s11-Jan-10 0:12

J a a n s

11-Jan-10 0:12

The values are being displayed in Hexadecimal format. You might have enabled the 'Hexadecimal Display' for the watch. Rt click on the watch window and uncheck the 'Hexadecimal Display' menuitem.

Re: magic numbers when debug in a webform

meeram39511-Jan-10 0:49

meeram395

11-Jan-10 0:49

Yeah. Thanks very much. It got worked.

Success is the good fortune that comes from aspiration, desperation, perspiration and inspiration.

Opening URL in new browser from ASP.net

Hema Bairavan10-Jan-10 19:03

Hema Bairavan

10-Jan-10 19:03

Hi Peoples,

In asp to go to other URL we will give like
Response.Redirect("www.CodeProject.com"), this will
open the code project site in the same page(same browser)
but i need the same in the new window
(i.e like Open in New Window (right click
of the IE browser))

i googled and find that it can be done bye windoe.open() as java script,
but as window.open() may be blocked by pop up blocker,

i need you peoples help,

how to do the same in C#.net.

help me thanks in advance

Re: Opening URL in new browser from ASP.net

meeram39510-Jan-10 19:20

meeram395

10-Jan-10 19:20

Please have a look at this

Success is the good fortune that comes from aspiration, desperation, perspiration and inspiration.

swap rows in repeater

m@dhu10-Jan-10 18:56

m@dhu

10-Jan-10 18:56

hi all i need to swap two rows(move rows up and down) using a link button in repeater control any samples...

ASP.NET problem

theOzLizard10-Jan-10 14:42

theOzLizard

10-Jan-10 14:42

I have a peculiar problem where I am getting mixed results in web browsers.

Internet Explorer in Vista and XP always works fine.

On Vista (Home Premium at least) Firefox and other browsers also work fine.

On XP Firefox, Opera, Sea Monkey and Google Chrome does not do what I expect.

The emphasis here is that ALL browsers work in Vista so I am pretty sure that my code is not the problem (I think).

I have a set of buttons on a page with the onclick pointing to javascript code, when the buttons are clicked an object var is concatenated with the value of the button pressed.

A submit button, an asp server control has an onclick and an onclientclick, this is wired to a callback function which sets a session object with the accumulated values of the buttons that were pressed a return var is set to load a response page with parameters indicating success or failure of the first operation.

On success, the response page sets the InnerHTML of a div with the values of the selected buttons. This is where the problem is, in vista all is ok, on XP the values are not present indicating that either the parameters have not been read or the session object does not contain values.

If I step through the code in Firefox on XP everything works fine, it is only when I upload to the web site that things go pear shaped.

Can some one tell me what is going on.

theLizard

Re: ASP.NET problem

Dinesh Mani10-Jan-10 18:16

Dinesh Mani

10-Jan-10 18:16

I'm sure, you are accessing the same web site from both XP and Vista, so you are right that your code is not at fault.

The problem here might be the the browser version that is running on the machines and not the OS(s) themselves. Check for browser version mismatch, patches/updates that have been applied, java-script engine is running, etc.

HTH

Re: ASP.NET problem

theOzLizard10-Jan-10 23:20

theOzLizard

10-Jan-10 23:20

Thanks Dinesh,

I am using pretty much the most updated versions of the browsers, google chrome was downloaded about 5 days ago and I also tried things out on other lap tops not my own with the same result.

I don't think it's the java script engine as the code I am using is so basic its not funny, but then it does not need to be very complex.

Could it be IIS 7?

Regards

theLizard

Re: ASP.NET problem

Dinesh Mani10-Jan-10 23:34

Dinesh Mani

10-Jan-10 23:34

I'm really not sure if IIS 7 is the problem. Actually my only bet was on the browsers and their javascript engines. Apart from that I don't see any reason why your app should fail. Frown | :(

Re: ASP.NET problem

theOzLizard11-Jan-10 9:13

theOzLizard

11-Jan-10 9:13

Thanks Dinesh,

I did not think it was the app either, this one is a mystery what I will do today is log every action to an text file and see if that shines a light on the problem,.

Regards.

theLizard

Re: ASP.NET problem

theOzLizard11-Jan-10 11:48

theOzLizard

11-Jan-10 11:48

The mystery is (maybe) opening up. (On my PC with XP OS)

Seems that my session object in Fire Fox and Sea Monkey is having problems, what I have done is logged every action to a text file.

This has shown that when the response page was called the session object which should have been filled with the selected values was empty in both Fire Fox and Sea Monkey but not IE and oddly enough on this test Opera, where previously Opera showed the same nothingness.

In ALL cases the callback function is being called and shows that the session object IS being filled with the correct values.

So know we know it is not IIS, or the Java script engine or my code causing the problems.

Is this a security issue perculiar to mozila browsers? if so can some one direct me to where or what needs to be changed I cant see anything wrong in my settings (but that is not to say there is nothing wrong with my settings)

Is this to do with cross page scripting?

Any ideas anyone.

theLizard

Re: ASP.NET problem

Dinesh Mani11-Jan-10 18:36

Dinesh Mani

11-Jan-10 18:36

I should have asked this in my first response, anyway, how are you maintaining the session object? Are you using encoded URL to store your session data?

If you are using InProc / State server then you should not have any problems. But, if you are using Cookieless state objects with encoded URL then may be browsers can pose problems.

Re: ASP.NET problem

theOzLizard11-Jan-10 21:37

theOzLizard

11-Jan-10 21:37

Alas I am using InProc so maintaining session objects should not be at problem. But you have given me an idea, I have not put logging code in my global.asax, this is where the session objects are initialized in Session_Start I also set the session objects to null in Session_End, I will have to do that tomorrow however.

Will no doubt put something here after I have checked what goes on in global.

Thanks Dinesh.

theLizard

Re: ASP.NET problem

theOzLizard12-Jan-10 11:48

theOzLizard

12-Jan-10 11:48

Getting closer to the culprit.

Seems like I am getting a double dose of Session_Start which instantiates new session objects , OK, this is not a real problem at start up because in the second attempt new session objects are not instantiated.

The problem is (Fire Fox) when I do the Response.Redirect to the results page at this point the session objects should still have the values but for some reason Fire Fox causes a new Session_Start to be fired which in turn generates new session objects, when the test is done in the page load event of the results page the session objects are empty.

Internet Explorer and Opera does NOT fire a new Session_Start event when Response.Redirect is called...

NameValueCollection nvc = Request.QueryString;

if(!IsPostBack)
   {
   if(SelectedButtons.selecteditems.Count > 0)
 {
 if(nvc.Get("response") == "OK")  //never gets in here...
   {
   setInnerHtml();
   }
     }
   }

Now we know what the problem is, has anyone seen this type of behavior, does any know how to stop Session_start being fired, could window.location be the source for firing a new Session_start

Why does IE and Opera behave and not Fire Fox or Sea Monkey?

theLizard

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