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There is not sure way to do that.
You can catch the onunload event in the browser, and open a new window that will run a page where you can do your database work. Of course that doesn't work if Javascript is disabled in the browser, or if a popup blocker stops the window.
Unless the browser tells the server that it's closing, there is no way that the server can know when the browser closes. The closest thing that you can get is to have the web page send requests to the server at a certain interval, so that the server can detect when there are not coming any request any more.
---
b { font-weight: normal; }
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Guffa can u please postthe code to check
"send requests to the server at a certain interval, so that the server can detect when there are not coming any request any more"
Is it Submit page through Java Script at certain interval?
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Hi..All,
Can somebody please tell me what is wrong with this ASP.NET page??
The browser is returning me the error
--> SubmitBtn_click is undefined <--
here is the code
......
...
<%@ Page Language="C#" ContentType="text/html" ResponseEncoding="iso-8859-1" %>
<%@Import Namespace="System"%>
<title>Untitled Document
void SubmitBtn_Click(Object Source,EventArgs e)
{
spanMessage.InnerHtml = GetFormattedDate(sugg.Value);
}
public static String GetFormattedDate(string cChoice)
{
string sReturn;
switch(cChoice.ToString())
{
case "0": sReturn=DateTime.Now.ToShortDateString();
break;
case "1": sReturn=DateTime.Now.ToShortTimeString();
break;
case "2": sReturn=DateTime.Now.DayOfWeek.ToString();
break;
case "3": sReturn=DateTime.Now.ToString();
break;
default: sReturn ="None";
break;
}
return sReturn;
}
Short Date
Short Time
Day of the Week
Date and Time
Thankyou.
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You are confusing client side scripting with server side scripting. Your script is running on the server, but the button click event is occuring on the client, as you have not defined the submit button as runat="server"
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How to get answers to your questions[^]
-- modified at 4:31 Friday 14th July, 2006
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You just create a new web page in Visual Studio, drag-drop a button on the page. And double-click on that button, now you can put your code in the button event handler...
<< >>
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You have excluded most of the error message, so most of the information is missing, like if it's a compile time or runtime error, and where it occurs.
I can't see that you are using "SubmitBtn_click" anywhere in your code, only "SubmitBtn_Click".
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b { font-weight: normal; }
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Ok guys let me see what I can do....I have gone through the replies from you guys and thanx for your prompt reply, i appreciate it...I will try it out and then update you guys.
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hi to all,
I haver write a code where read a file from one place and write it to another temporary place on server throgh stream and then zip it and download the zip file now i wnat the delete temporary file created within code but this give the error " can't delete because file is used by another process" where as i close my all stream object prperly where that file is use.
give any help is welcome
thanks
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Hello
I am a programmer in asp.net c#.i need ur help .in my project i want to operate with images like enlarging ...my problem is i need a component which manipulate images without destroying it's quality. can any one help me
thanks in advance.
regards alex.
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Hello man
Thanks for your help.But it's ok is there any other method that helps me,ie, we just give the height and width according to this figure image will resized without destroying it's quality.
alex.
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hi
how to create add-ins for microsoft outlook in asp.net. Help.
Thanks & Regards,
Prya
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Don't be daft - you need to code a proper dll for that!
How can a web page act as an addin?
"Now I guess I'll sit back and watch people misinterpret what I just said......"
Christian Graus At The Soapbox
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Hi all
Sorry for reposting (It is urgent to me)
Dim i As Integer
Dim j As Integer
For i = 0 To a
For j = 0 To b
Response.Write(NewData(i, j) & "")
Next
Next
I declere newdata as
Dim NewData(a, b) As String
Now i want put "NewData(i, j)" in a Array and
I want retrive the Array
Plz can one give the syntax for this
THX
asdfasdfasdfasdfasdfasdfasdfasdfasdfasdf
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Hi
use this syntax
Dim s(2, 2) As String
For i As Int32 = 0 To 2
For j As Int32 = 0 To 2
MessageBox.Show(s(i, j))
Next
Next
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hi friends,
How to open outlook from asp.net. i need to open outlook and there i have to type the matter. but the to address should be mentioned in asp.net itself.can tell me how to open outlook from asp.net.
Thanks & Regards
Prya
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Hi,
I have a requirement to send mails to multiple recipients in wrod format with datas retrieved from database(sql server) through mail merge using c#.net.
Any one has worked with this..?
Thanks,
Prabha
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I m preparing a online Questionnaire in asp.net, I want to give time constraint after each 5 mins next question will display. To implement this how i have to use timer .
-- modified at 5:04 Friday 14th July, 2006
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I want to get DataTable value by column index,not by specical column name,So I must get column name,I test many way to get it,it is always failed.this is my code.
1. alert(ds.Tables[0].Columns[0].Name);
2. alert(ds.Tables[0].Columns[0].Item[0]);
3. alert(ds.Tables[0].Columns[0].FieldName);
4. alert(ds.Tables[0].Columns[0].ColumnName);
Can you help me?
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What was the error returned?
ds.Tables[0].Columns[0].ColumnName should work unless your dataset is null or contains no tables, or the table has no columns at all.
BTW, why are you using alert? If you mean to access the dataset from Javascript, you need to convert the dataset into either an XML or Javascript array first.
"You are special, but so is everybody else."
"Democracy is two wolves and a sheep voting on what to have for dinner" - Ross
Edbert
Sydney, Australia
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Hi,
I have two problems,
First I want to show the master details data in a single grid (or a grid within a grid or a repeater within a repeater).
The structure what I want is something like, On the first column i ant to sho different rows which have the info about the master say customerid , customer name ,customer address.
And in the second column there will be all the details rows, which will contain multiple orders.
Actually it should look like in a table its only two colums.
I hope i am clear enough.
Secondly,I dont want to edit any record, i just want to display them.
So which control should i use, Repeater,DataView or grid.
Please provide me with the link or a sample code in C#.
Thanks in advance.
Deepak Surana
-- modified at 16:13 Thursday 13th July, 2006
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I recently went through the learning of master/detail grids. All I can say is if you don't want to edit--good! It will make life easier. There are lots of articles but the ones I found most helpful were the 18 part series on datagrids at 4guysfromrolla. This is the link to part 18 but it has links to the other ones. Part 14 is the master/detail article.
http://aspnet.4guysfromrolla.com/articles/061505-1.aspx
If you use the datagrid you will use ItemTemplate for your columns. Basically it's like a datagrid, and then creating another datagrid inside of it for the detail stuff.
There are some articles here for nested datagrids (I'd search on those keywords) that also show how to insert drop-downs and things like that. But personally, I really like that 18 part series, especially if you have never worked with datagrids.
I don't know if someone else feels Repeater or DataView is better, but I had not programmed asp.net in a looong time and I eventually got it.
Feel free to go through the articles and post again if you have more specific questions.
Have fun!
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Hey!
I think datagrid, repeater would be more easy and efficient to use.
The article is nice, but can you please help me out in finding a code in C#.
Thanks !
Deepak Surana
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You're just looking for the code to connect to the database? Because all the datagrid setup (columns, headers and such) is done in the asp part.
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