ASP.NET

5-May-08 21:55

That is what is being classified as 'Wierd'. You might run into Scripting Errors when the XmlHttp fails due to any errors on the server.

Vasudevan Deepak Kumar
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Re: Ajax page call

Christian Graus5-May-08 21:55

5-May-08 21:55

OK - so you want to make a basic AJAX call, and inject the result into your page ? Not using theh ASP.NET AJAX library, as you call an ASPX but run it in a straight HTML page ?

I guess you'll get your HTML as the string coming back from the AJAX call, and then you can just use document.getElementById to get a div or something in your page and set it's content to be the HTML.

Christian Graus

Please read this if you don't understand the answer I've given you

"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )

Re: Ajax page call

Vasudevan Deepak Kumar5-May-08 21:54

how do i grab frame from web cam using asp.Net

5-May-08 21:54

prabumjkaran wrote:
get login page desing into html page at runtime using Ajax

Weird. I would suggest you can have a simple login link and when you click popup a small DIV to get the username and password. Submit these through AJAX and based on the response either redirect the user or halt on the same page till further retries are exhausted by the user.

koolprasad20035-May-08 19:57

koolprasad2003

5-May-08 19:57

Hello frnds,
i have a web cam connected to machine. i want to develope a web site which shows the picture from web cam and on click of grab frame it will save a still from web cam.

any idea ???? code sample ????

pls. help....thankx in advance

Koolprasad2003 Smile | :)

Be a good listener...Because Opprtunity knoughts softly...N-Joy

Christian Graus5-May-08 20:10

5-May-08 20:10

CAn't do it. ASP.NET generates javascript and HTML and neither can do that. A .NET or ActiveX control may be able to, and a website can host tat, but it won't really involve ASP.NET

koolprasad20036-May-08 3:21

koolprasad2003

6-May-08 3:21

thankx a lot....

any example ?????

Koolprasad2003 Smile | :)

Be a good listener...Because Opprtunity knoughts softly...N-Joy

Vasudevan Deepak Kumar5-May-08 21:56

5-May-08 21:56

Check this out:

http://www.codeproject.com/KB/web-image/webcamimage.aspx[^]

displaying image in IMAGE control?

koolprasad20036-May-08 3:21

koolprasad2003

6-May-08 3:21

thankx

Be a good listener...Because Opprtunity knoughts softly...N-Joy

Karan_TN5-May-08 19:05

5-May-08 19:05

hai,
currently i m using asp.net with c# (.net 2005, 2.0 framework)
i have stored a image to my database (sql server 2000) and want to retrive it and display in a image control.
i use the below code..

using (BinaryReader reader = new BinaryReader(BrowseImg.PostedFile.InputStream))
{
byte[] image = reader.ReadBytes(BrowseImg.PostedFile.ContentLength);
conn.Open();
cmd = new SqlCommand("INSERT INTO tbl_test(my_image) VALUES (@Photo)",conn);
cmd.Parameters.AddWithValue("@Photo", image);
rowsAffected = MyLib.cmd.ExecuteNonQuery();
conn.Close();
} - FOR insert image into database

Response.Clear();
Response.ContentType = "image/jpeg";
Image image = null;
conn.Open();
cmd = new SqlCommand ("SELECT my_image from tbl_test",MyLib.conn);
byte[] imageData = (byte[])MyLib.cmd.ExecuteScalar();
MemoryStream memStream = new MemoryStream(imageData);
image = Image.FromStream(memStream);
image.Save(Response.OutputStream, ImageFormat.Jpeg); - for display image

but its displaying in my page itself... i need to display on an image control or in some control..

how to implement this? - KARAN

Christian Graus5-May-08 19:11

5-May-08 19:11

You need to write a HTTP handler that takes on the URL an ID that tells it what image to load and send back. Then you use IMG tags that have that URL as their src

Karan_TN5-May-08 19:40

5-May-08 19:40

this coding i got from google....
can u provide the exact code to fulfil my process?

Krazy Programmer5-May-08 20:05

Krazy Programmer

5-May-08 20:05

Dude ..
byte[] photo = (byte[])dr[0];
MemoryStream ms = new MemoryStream(photo);
//Image im = new Image();
//Icon.ImageUrl =
Bitmap bt = new Bitmap(ms);

....> Response.OutputStream.Write(photo, 0, photo.Length);

here dr is a data row

take a aspx page ... in that write this code

Now to the image control add the image url as the aspx page

This will work

If You win You need not Explain............
But If You Loose You Should not be there to Explain......

Karan_TN5-May-08 21:25

5-May-08 21:25

thanks for u r coding krazy... but i m getting error Invalid attempt to read when no data is present.

my code:

conn.Open();
cmd = new SqlCommand("SELECT my_image from test123",conn);
dr = cmd.ExecuteReader();
byte[] photo = (byte[])dr[0];
MemoryStream ms = new MemoryStream(photo);
Bitmap bt = new Bitmap(ms);
Response.OutputStream.Write(photo, 0, photo.Length);

Christian Graus5-May-08 20:09

5-May-08 20:09

Not sure what the other dude gave you, looks like a mess to me.

You write a HTTP handler, and it does the response.binarywrite. I'm sure there are examples here on CP

Karan_TN5-May-08 21:28

5-May-08 21:28

thanks for u r reply chris...
can i get a sample coding atleast?
since i m not familiar with http process and imaging

Christian Graus5-May-08 21:54

5-May-08 21:54

http://www.codeproject.com/KB/web-image/thumbnailer.aspx[^]

seems like a place to start.

But, it's really as simple as placing the code you have, in a HTTP handler, and doing what I said.

Vasudevan Deepak Kumar5-May-08 21:58

5-May-08 21:58

As CG suggested you, you may need to have a HttpHandler for writing out images dynamically. Check this out:

http://www.c-sharpcorner.com/UploadFile/desaijm/HTTPHandlersForImages11152005062705AM/HTTPHandlersForImages.aspx[^]

Karan_TN6-May-08 19:40

How to get current page's url

6-May-08 19:40

thax

Meax5-May-08 18:58

Meax

5-May-08 18:58

i am using the following code in page load event

<br />
    dim CurrentPageURL<br />
<br />
    CurrentPageURL= Request.UrlReferrer.ToString()<br />

is it correct?

Re: How to get current page's url

Reelix5-May-08 21:29

Reelix

5-May-08 21:29

Trial and Error?

Response.Write("URL I'm Testing: " + CurrentPageURL);

Smile | :)

-= Reelix =-

How to disabled textbox of gridview at runtime

Ankit At Codeproject5-May-08 18:50

Ankit At Codeproject

5-May-08 18:50

Hello Friends
i m working on gridview.
my gridview is consist of two dropdown and six textbox in a row.
now at runtime i want to disabled 1 column textboxes.
how can i do that..
if anybody knows pls respond...

thanks

Abhijit Jana5-May-08 19:17

Abhijit Jana

5-May-08 19:17

Hi Ankit,
what do you mean by disable the grid view? by default all the cell are readonly. only the time of editing in grid view all the text box will become editable.

so do you need it at the time of edit of grid view or what ? Confused | :confused:

please clear . Smile | :)

Thanks !!!!

Best Regards
-----------------
Abhijit Jana
"Success is Journey it's not a destination"

Ankit At Codeproject5-May-08 19:41

Ankit At Codeproject

5-May-08 19:41

hi Abhijit

actually my gridview is not binded with any data
it is blank.
and at runtime the textbox of one column i want to disabled..
how can i do it.
the gridview i m using is for the getting data to fed up into database.

any idea

thanks

Abhijit Jana5-May-08 19:59

Abhijit Jana

5-May-08 19:59

you can get the control using FindControls() methods.

try to find the control of rows like

textbox t= (textbox)gridviewRow.findControl("txtbox1");
t.Enabled=flase.

kinldy check the syntax . This the way that you can acheive.....

Good luck....
let me know when done

Thanks !!!!

Best Regards
-----------------
Abhijit Jana
"Success is Journey it's not a destination"