C# Discussion Boards - CodeProject

displaying images in System.Web.UI.WebControls.DataGrid

Bennnn14-Aug-05 23:24

14-Aug-05 23:24

Hello,

I'm having a real nightmare trying to get my SQLserver.image data to be displayed in a System.Web.UI.WebControls.DataGrid.
I have written a windows application which works fine, however the WebControls.Datagrid doesn't seem to have the ability to define specific column types as is the case with the 'normal' DataGrid.

Has anyone been able to do this? the examples I've seen on the web seem to use two web pages- one to return the image, to the second. This seems wasteful as I already have the data in a DataSet, why have a second page re-query the database for each image.

I'd imagine this would be a fairly common thing to want to do in a webpage - Ebay for example - a description of the item and an image next to it.

any advice would be greatly appreciated.

Regards

Ben.

radio button

levi's14-Aug-05 23:10

levi's

14-Aug-05 23:10

hi all!i have a form which has a group box and inside the group box have five radio buttons(one is selected by default).At the same time it also have a "OK" button at the form.So when i click on "Ok" button it will sent the value out..Does anybody can provide my some guideline or code..Thanks in advance!

Re: radio button

Guffa15-Aug-05 0:44

Guffa

15-Aug-05 0:44

Guideline or code to do what?

---
b { font-weight: normal; }

Re: radio button

levi's15-Aug-05 14:42

levi's

15-Aug-05 14:42

code for how to make the OK button function,mean when i select any of the radio button and i click the Ok button.it will send the value(value for the radio button) out.Thanks!

Re: radio button

Guffa16-Aug-05 11:42

Guffa

16-Aug-05 11:42

Use a submit button, that will submit the form.

<input type="submit" value="OK">

---
b { font-weight: normal; }

datagrid key event

Anonymous14-Aug-05 23:09

Anonymous

14-Aug-05 23:09

i manage to capture the 'Enter" key button of datagrid and disable it original function.(Point to next row).I would like the enter key to be customised with my event.But it could not.Please help !

Re: datagrid key event

Alomgir Miah15-Aug-05 5:04

Alomgir Miah

15-Aug-05 5:04

Subclass DataGrid and override the PreProcessMessage method

public override bool PreProcessMessage(ref Message msg)
{
Keys keyCode = (Keys)(int) msg.WParam & Keys.KeyCode;
switch (keyCode)
{
case Keys.Enter:
....
}
}

Live Life King Size
Alomgir Miah

UTF8 strings

mohitTheOne14-Aug-05 23:07

mohitTheOne

14-Aug-05 23:07

Hi,

I am having a list url in a text file.These url are utf8 encoded.
eg. http%3A%2F%2Fwww.abc.com%2Findex.htm

I need to parse these and convert it normal string like

http://www.abc.com/index.htm

Is there any way for doing this ....

Thanks in advance

Re: UTF8 strings

Mike Dimmick14-Aug-05 23:11

Mike Dimmick

14-Aug-05 23:11

That's not UTF-8. That's URL hex encoding. Use the System.Uri class to convert to a canonical representation.

Stability. What an interesting concept. -- Chris Maunder

Re: UTF8 strings

Guffa14-Aug-05 23:13

Guffa

14-Aug-05 23:13

No, they are not utf8 encoded. They are url encoded.

Use HttpServerUtility.UrlDecode() to decode them.

---
b { font-weight: normal; }

Re: UTF8 strings

mohitTheOne15-Aug-05 2:03

mohitTheOne

15-Aug-05 2:03

Is there any other way of doing this ..

To use HttpServerUtility one needs Server object...

Re: UTF8 strings

Guffa15-Aug-05 3:39

Guffa

15-Aug-05 3:39

You can also use HttpUtility.UrlDecode().

---
b { font-weight: normal; }

C# Remote process on client machine

mohammad92914-Aug-05 22:52

mohammad929

14-Aug-05 22:52

Hi all,

I’m currently developing a Client/Server application based on Socket, on which the client runs a UI and submit some request which will be send to the server then the client exit. Then the server manipulates these data on his side.

1. I’m trying to force a simple dialog to run at the client machine, on which the user provide an answer from that dialog (Yes/ No) and click O.K.
2. The server then receives this feedback and does something.

I need some help on this issue, I’ll appreciate it. Thanks

Kind Regards,
Mohammad

Re: C# Remote process on client machine

S. Senthil Kumar16-Aug-05 0:38

S. Senthil Kumar

16-Aug-05 0:38

mohammad929 wrote:
I need some help on this issue, I’ll appreciate it. Thanks

What exactly is the help you need?

Regards
Senthil
_____________________________
My Blog | My Articles | WinMacro

Display HTML without webbrowser control

Robin Keith14-Aug-05 22:38

Robin Keith

14-Aug-05 22:38

I want to render simple HTML on a form without the overhead webbrowser control.

I'd like to render IMG, H1, TABLE tags - and ideally INPUT tags too.

I appreciate that implementing a full web browser is no simple task, but this is much simpler.

Anyone come across any suitable code (even in another language)?

Thanks

Robin

Re: Display HTML without webbrowser control

Mohamad Al Husseiny14-Aug-05 22:50

Mohamad Al Husseiny

14-Aug-05 22:50

May this help
XHTMLStatic [^]
And there are another one at code project but i dont remember its name its some thing like draw html

MCAD

Re: Display HTML without webbrowser control

Mohamad Al Husseiny14-Aug-05 22:54

Mohamad Al Husseiny

14-Aug-05 22:54

i found it DrawHtml[^]

MCAD

Re: Display HTML without webbrowser control

Robin Keith14-Aug-05 23:06

Robin Keith

14-Aug-05 23:06

Thanks for the info.

I'm also looking at Karl Runmo's article http://www.codeproject.com/cpp/krhtmlviewer.asp which renders tables too.
If I get a .net version working, I'll post it up here.

Sending mouse && keyboard event to other aplication

yarns14-Aug-05 20:44

yarns

14-Aug-05 20:44

Hi,

i have a handle some aplication... how can i simulate click on some coordinate or keyboard typing?

Greetings

Re: Sending mouse && keyboard event to other aplication

HumanOsc15-Aug-05 3:09

HumanOsc

15-Aug-05 3:09

Hello...

To simulate a click or keyboard typing you can use SendMessage to send a spefied message to the window...

Big Grin | :-D

Image compare... how?

Anonymous14-Aug-05 20:39

Anonymous

14-Aug-05 20:39

Hi,
i have two images :
- image A
- image B - is small part image B
how to find location(x,y) image B in image A?

Greetings

database primary key

ppp00114-Aug-05 20:32

ppp001

14-Aug-05 20:32

Hi,

In a relational database, I would to like to know the performance difference between of using a string and an integer as the primary key field for the tabl;e. Will a column field of integer be indexed faster than a string column field ?

Thanks

Re: database primary key

Mohamad Al Husseiny14-Aug-05 23:13

Mohamad Al Husseiny

14-Aug-05 23:13

General rule use smallest datatype as you need
smallest will run faster
look at this article may help you

Data Type Performance Tuning Tips for Microsoft
[^]

MCAD

Receiving same udp datagram twice

PatteOne14-Aug-05 19:57

PatteOne

14-Aug-05 19:57

Hi!
When I try to send udp-packets broadcasted in my local LAN by this code:

<br />
Socket s = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);<br />
s.SendTo(Encoding.ASCII.GetBytes("Some text to send"), new IPEndPoint(IPAddress.Parse("192.168.0.255"), 11000));<br />

And do the receive with this:

<br />
client = new UdpClient(11000);<br />
IPEndPoint EP = new IPEndPoint(IPAddress.Any, 11000);<br />
byte[] buffer = client.Receive(ref EP);<br />

I always get two messages received! My explanation for this is, that udp is connectionless and by broadcasting it it's returned by some other device - I don't know.. Can you explain it to me and give a tip how to avoid it?

System.Windows.Forms.ListBox .net 2.0 problem

Shane Stevens14-Aug-05 17:54

Shane Stevens

14-Aug-05 17:54

Hi,

Is it just me or does the ListBox class in .net 2.0 exhibit some odd behaviour?

For instance, when I use the mouse wheel to scroll it seems to do some weird redraw-from-the-top update method.

Also, it flickers like crazy when resizing. I've tried enabling the double buffering mode to no avail. I have overridden it to draw icons next to the text which works fine, but it seems to clear the entire background, not just the dirty area, every time.

As a sanity check I then placed a stock ListBox control on a new form to see if it works in its standard mode but it exhibited the same symptoms. The odd thing is it doesn't do this with .net 1.1. Confused | :confused:

Does anyone else suffer from this or know of a solution?

Regards,
Shane

Shane Stevens
Technical Director
Blue Tongue Entertainment
www.bluetongue.com

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.