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Re: Converting a byte array into System.Web.UI.HtmlControls.HtmlImage

pmarfleet20-Dec-07 2:28

pmarfleet

20-Dec-07 2:28

mareers wrote:
Can any body post some links or info. to convert a byte array into html image?

There's no such thing as a HTML image. You can display an image on a web page by using an <img> tag that points to the URL that represents the image resource.

You could either:

1. Save your image to a file and point an tag to the URL for that file.
2. Create an ASPX page that writes the binary data for the image to the output stream and point an tag to the URL for that page.
3. Write a custom HTTP handler to service image requests and reference it in a similar way to 2.

Perform a Google search for any of these and you should find plenty of relevent information.

Paul Marfleet

"No, his mind is not for rent
To any God or government"
Tom Sawyer - Rush

Re: Converting a byte array into System.Web.UI.HtmlControls.HtmlImage

ScotterMonkey23-Oct-09 16:27

ScotterMonkey

23-Oct-09 16:27

Hi -

I'm using Classic ASP but hoping the solution will be similar if not the same.
What I'm trying to do:

I am working with a Flash ActionScript programmer.
In his application, he is sending a "ByteArray" (binary data that defines the JPG) of a JPG file to my ASP.
In my ASP I want to receive that querystring and write the JPG file to the server.
Possible? How?

Thanks!

Scott@oceanmedia.net

Know The Problem

keyto20-Dec-07 0:44

keyto

20-Dec-07 0:44

In my Explorer window I have
c:\...\WebSite3\
App_Data
getDetail.aspx
getDetail.aspx.cs
MasterPage.master
MasterPage.master.cs
and other image file

when i run my program i got error like following
Directory Listing -- /WebSite3/

--------------------------------------------------------------------------------

Thursday, December 20, 2007 10:43 AM <dir> App_Data
Tuesday, July 25, 2006 10:17 AM 9,705 airbus.jpg
Tuesday, July 25, 2006 10:17 AM 22,505 air_holland.jpg
Thursday, December 20, 2007 02:29 PM 262 Default3.aspx
Thursday, December 20, 2007 02:29 PM 406 Default3.aspx.cs
Thursday, December 20, 2007 04:43 PM 3,790 getDetail.aspx
Thursday, December 20, 2007 04:20 PM 663 getDetail.aspx.cs
Thursday, December 20, 2007 05:11 PM 153 Image.aspx
Thursday, December 20, 2007 03:04 PM 403 Image.aspx.cs
Thursday, December 20, 2007 05:12 PM 2,257 MasterPage.master
Thursday, December 20, 2007 02:26 PM 414 MasterPage.master.cs
Thursday, January 01, 2004 05:45 AM 83,794 Water lilies.jpg
Thursday, December 20, 2007 10:49 AM 1,585 Web.Config
Thursday, January 01, 2004 05:45 AM 105,542 Winter.jpg

How can I remove this error. Please tell me what this problem is?

--------------------------------------------------------------------------------
Version Information: ASP.NET Development Server 8.0.0.0

Re: Know The Problem

pmarfleet20-Dec-07 2:18

pmarfleet

20-Dec-07 2:18

keyto wrote:
How can I remove this error. Please tell me what this problem is?

What error? You haven't explained what the error is.

Paul Marfleet

"No, his mind is not for rent
To any God or government"
Tom Sawyer - Rush

Re: Know The Problem

Not Active20-Dec-07 4:57

Not Active

20-Dec-07 4:57

OK, I know the problem. Now what?

only two letters away from being an asset

Re: Know The Problem

Christian Graus20-Dec-07 9:52

Christian Graus

20-Dec-07 9:52

There is no error. Rename default3.aspx to default.aspx and then you'll have a chance of it running automatically when you browse to the folder.

Christian Graus - Microsoft MVP - C++

"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 )

[Message Deleted]

.NET- India 19-Dec-07 23:24

.NET- India

19-Dec-07 23:24

[Message Deleted]

Re: Master Page in ASP.NET

Christian Graus19-Dec-07 23:40

Christian Graus

19-Dec-07 23:40

I guess that means it's not allowed there. The error message implies that a fully qualified path may be accepted.

Re: [Message Deleted]

Paddy Boyd20-Dec-07 1:12

Paddy Boyd

20-Dec-07 1:12

Deleting messages isn't very polite, you know...

Re: [Message Deleted]

.NET- India 20-Dec-07 1:15

.NET- India

20-Dec-07 1:15

Yes i know

This is my actual problem..........

When i'm using the Master Page in web.config file then it's throwing error like

Unrecognised tag prefix or device filter 'asp'

Can anybody tell me y it's throwing

Re: [Message Deleted]

Christian Graus20-Dec-07 9:56

Christian Graus

20-Dec-07 9:56

The Knowledge wrote:
Yes i know

Then why did you do it ?

The Knowledge wrote:
When i'm using the Master Page in web.config file then it's throwing error like

Unrecognised tag prefix or device filter 'asp'

This is a different issue to what you first posted.

As I said to you yesterday, every path I see to a master page in web config examples online uses a full path, not just the page name. Did you try that ? What did you change to get this new error ? How can we help you if you don't show us the code that creates the error ?

Re: [Message Deleted]

Paul Conrad23-Dec-07 7:56

Paul Conrad

23-Dec-07 7:56

The Knowledge wrote:
Yes i know

Then don't delete the message. Someone else might benefit from it as well.

"The clue train passed his station without stopping." - John Simmons / outlaw programmer

Paging problem in datagrid

kinnuP19-Dec-07 22:39

kinnuP

19-Dec-07 22:39

hi all,
paroblem as follows,
i am using third party control for page navigation.the index of the datagrid current page index not matching with the third party control index.for example when i am deleting last record in second page i am able to bind with the first page. but if am deleting any record in first page it is throwing exception "Invalid CurrentPageIndex value. It must be >= 0 and < the PageCount." the code as follows :

this.dgUserList.CurrentPageIndex = this.dgnNav.CurrentPage;

//Reset the page Navigation if deleting the only record on the last page.

if (dgUserList.Items.Count <= 1 && dgUserList.CurrentPageIndex == dgUserList.PageCount - 1)
{
if (this.dgnNav.CurrentPage <= dgUserList.PageCount && this.dgnNav.CurrentPage > 0)
{
dgUserList.CurrentPageIndex = this.dgnNav.CurrentPage - 1;
}
}

this is the page index of third party control
this.dgnNav.CurrentPage;

Thanks And Regards,
Guru

Re: Paging problem in datagrid

Paul Conrad22-Dec-07 9:31

Paul Conrad

22-Dec-07 9:31

Have you tried asking the makers of the third party control?

"Real programmers just throw a bunch of 1s and 0s at the computer to see what sticks" - Pete O'Hanlon

Grid view row height

Anuradha61219-Dec-07 22:05

Anuradha612

19-Dec-07 22:05

Hi,
I have a grid view in a web page, i am using paging for that, the problem is if the grid view contains 2 or 3 records, these rows occupy entire grid view space(i.e full height of the grid view), is there any way to control this, i want the row height to be static even there 2 rows or 200 rows.

Thanks in advance

Re: Grid view row height

boy.pockets20-Dec-07 12:10

boy.pockets

20-Dec-07 12:10

If you dont set the height property in the GridView, then it will only be as tall as it has to be.

Display an System.Drawing.Image on a aspx webpage

anderslundsgard19-Dec-07 21:53

anderslundsgard

19-Dec-07 21:53

I have a database from where I read Images as byte[] and then convert it to System.Drawing.Image. How can I display that image on my aspx-form?

_____________________________

...and justice for all

APe

Re: Display an System.Drawing.Image on a aspx webpage

Hesham Amin19-Dec-07 23:29

Hesham Amin

19-Dec-07 23:29

Check this article:
Storing Images to Database and Retrieving to GridView[^][^]

Hesham A. Amin
My blog

Re: Display an System.Drawing.Image on a aspx webpage

Nishant44430-Mar-09 21:39

Nishant444

30-Mar-09 21:39

MemoryStream imgStream = new MemoryStream(byte[] imgbinary, 0, imgbinary.length);
System.Drawing.Image img = System.Drawing.Image.FromStream(imgStream);
img.Save(Server.MapPath("~/destinationfolder/sample.jpg"), System.Drawing.Imaging.ImageFormat.Jpeg);
Image1.ImageUrl = "~/destinationfolder/sample.jpg";

Now you can display image in image control without using handler or another asp.net page

Display system.drwing.image in ImageControl

Export Datatable to Excel

mpavas19-Dec-07 20:42

mpavas

19-Dec-07 20:42

Hello,

I have an ASPX page WITH Grid View with data in below format:

Title
------------------------------------
c# book
------------------------------------
ID AUTHOR ISBN
------------------------------------
1 Andrew 1233456
------------------------------------
Title
------------------------------------
Learn asp.net in 20 days
------------------------------------
ID AUTHOR ISBN
-------------------------------------
2 ROB 412123123
-------------------------------------

Now I want to export this data to excel in following format (Each data in one row)

Title ID AUTHOR ISBN
Learn asp.net 2 ROB 412123123

How can I achive this? Do I need to take a seprate Gridview which is hidden [but do not know how to achive this]?

Or is there a way i can directly export the datatable to Excel. I will not be using Miscosoft excel component to use it in any case.

Please suggest

Regards,
Pavas
-----------------------
[http://longjump.com/]
Dynamic business applications that manage and coordinate teams and information
-----------------------

Re: Export Datatable to Excel

pmarfleet19-Dec-07 21:37

pmarfleet

19-Dec-07 21:37

This article[^] explains how to write to an Excel spreadsheet using the Jet OleDb Provider. The Excel application itself does not need to be installed on the server.

Paul Marfleet

"No, his mind is not for rent
To any God or government"
Tom Sawyer - Rush

Re: Export Datatable to Excel

mpavas19-Dec-07 22:28

mpavas

19-Dec-07 22:28

thanks, i will have a look on it

Regards,
Pavas

User Interaction Table

rajanandal19-Dec-07 20:35

rajanandal

19-Dec-07 20:35

hi anybody know about User interaction table. ie it ll accept text,image at runtime simply entering into table cell....