Re: &#x6f;nclick event not triggering ! - C# Discussion Boards

23-Jan-06 0:23

Hi all,

Here is the code:

\\----------------------------------------
public void DisplayButtons()
{
string idName = "id" + j;
string divName = "divNamee" + j;
string divId = "divIdd" + j;
string StyleStr = "visibility:visible; position:absolute; left:" + xPosCityValue + "; top:" + yPosCityValue + ";";

Response.Write("<DIV NAME = '" + divName + "' ID = '" + divId + "' runat = \"server\" STYLE = '" + StyleStr + "'>" + "<input type='image' runat='server' SRC='bulletNew.gif' ALT='" + curCityName + "' id='Image1' onserverclick='Image1_ServerClick'>" + "</DIV>");
}

protected void Image1_ServerClick(object sender, ImageClickEventArgs e)
{
Response.Write("Hello");
}
\\----------------------------------------

On clicking the imagebutton, the event doesnt trigger. I have no idea where I am going wrong. Someone Please help me. This is really urgent.

Nitya.

-- modified at 6:26 Monday 23rd January, 2006

Guffa23-Jan-06 1:14

23-Jan-06 1:14

That is because you are not using a server control. If you simply write out the html code for the control, the runat and onserverclick properties simply ends up in the html code, where they are totally meningless. The runat and onserverclick properies only work if you have them in code that is parsed into the page.

In this case I would simply create server objects for the elements, add the event to the OnClickproperty of the button, and add the objects into a Controls collection of an element in the page.

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

nitya_arysys23-Jan-06 1:21

23-Jan-06 1:21

Thank you for the prompt reply. I did not get you clearly. I would be very happy if you could brief little more on this with some example code. I once again thank you for the reply. (I am waiting for your reply).

Nitya.

Guffa24-Jan-06 1:21

24-Jan-06 1:21

What was it that you didn't understand?

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

nitya_arysys24-Jan-06 1:36

24-Jan-06 1:36

Response.Write("

" + "runat='server' SRC='bulletNew.gif' ALT='" + curCityName + "' id='Image1' onserverclick='Image1_ServerClick'>" + "

");
}

You said that i need to make the "image button" as a server control, which I had already done in the above code (the attribute in the bold text).
Also, I want to ask whether it is possible to call C# method from javascript.
Thanks in advance. Please reply soon. I am eagerly awaiting.

Nitya.

Guffa24-Jan-06 9:35

24-Jan-06 9:35

No, it's not a server control. It's just some text in a string. Just because the string contains "runat='server'" doesn't mean that anything happens. The string could just as well contain "kill all humans", but that wouldn't happen either.

To be a server control it has to be a real object, in this case an HtmlInputImage object.

There are generally two ways of creating server controls:

1. Put the tag in the aspx page so that it is parsed into the Page object.
2. Create the object in the code behind and add it to the page structure.

nitya_arysys wrote:
Also, I want to ask whether it is possible to call C# method from javascript.

Not directly. Consider these two rules:

1. The server side code and the client side code never exist in the same place.
2. The server side code and the client side code never exist at the same time.

If you want a Javascript to make anything happen on the server, you have to post the page back to the server and make the C# code detect what it is supposed to do.

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

nitya_arysys25-Jan-06 2:33

sort column in ultrawingrid

25-Jan-06 2:33

Thanks Guffa for clarifying.

Frank23123-Jan-06 0:02

Frank231

23-Jan-06 0:02

Hello,

I try to sort my ultragrid1 in a button_click methode but I've no idea how to handle the ultrawingrid.

Something like ultragird1. sort column["column"] ???

Can anybody help me.

Re: sort column in ultrawingrid

NassosReyzidis23-Jan-06 3:42

NassosReyzidis

23-Jan-06 3:42

Hi Frank,
use ultraGrid1.DisplayLayout.Bands[0].SortedColumns.add(YourColumn col)
hope that helped

GanDad

Passing reference values to C++ functions

madhusri22-Jan-06 23:27

madhusri

22-Jan-06 23:27

I am trying to use the C++ funtions in C# through DLL reference.
I need to pass values by reference to these functions.
How is this possible in C#?

Thanks and Regards
Madhu

is it possible??

imsathy22-Jan-06 23:25

imsathy

22-Jan-06 23:25

how to get the multile values from a listbox in html and javascript.

and how to pass muliple option from a drop down to the stored procedure as a comma separated string and then pass the values to the conditional clause of the procedure.

sathy

Customizing config file

Celemar8222-Jan-06 22:28

Celemar82

22-Jan-06 22:28

i'm trying to add my own custom section in my config file, i've found some articles on this in VB that work, but when i rewrite it into C# i get an error, can someone please help?

this is the config file:
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<configSections>
<sectionGroup name="myGroup">
<section name="myCustomSection"
type="System.Configuration.NameValueSectionHandler,
System, Version=1.0.5000.0, Culture=neutral,
PublicKeyToken=b77a5c561934e089"/>
</sectionGroup>
</configSections>

<myGroup>
<myCustomSection>
<add key="mykey" value="myvalue" />
</myCustomSection>
</myGroup>
</configuration>

this is my C# code:
NameValueCollection nvc = new NameValueCollection();
nvc = ((NameValueCollection)ConfigurationSettings.GetConfig("myGroup/myCustomSection"));
string Value = nvc["mykey"];

this is the error i get from line 2 of code:
An unhandled exception of type 'System.Configuration.ConfigurationException' occurred in system.dll

Additional information: Could not create System.Configuration.NameValueSectionHandler,
System, Version=1.0.5000.0, Culture=neutral,
PublicKeyToken=b77a5c561934e089

Of all the things i've lost i miss my mind the most...!

-- modified at 4:29 Monday 23rd January, 2006

Re: Customizing config file

tarasn23-Jan-06 0:07

tarasn

23-Jan-06 0:07

You should change this line in your .config file from:

<br />
<section name="myCustomSection"<br />
        type="System.Configuration.NameValueSectionHandler,<br />
        System, Version=1.0.5000.0, Culture=neutral,<br />
        PublicKeyToken=b77a5c561934e089"/><br />

<br />
<section name="myCustomSection" type="System.Configuration.NameValueSectionHandler, <br />
system, Version=1.0.3300.0, Culture=neutral, PublicKeyToken=b77a5c561934e089, Custom=null" /><br />
<br />

DevIntelligence.com - My blog for .Net Developers

Re: Customizing config file

Celemar8223-Jan-06 0:14

Celemar82

23-Jan-06 0:14

Excelent, it works!
Thank You...!!!!!!!!!!!!!!!!

If anyone needs this.

M@dHatter22-Jan-06 20:47

M@dHatter

22-Jan-06 20:47

If anyone needs a custom Hatch Style Type Editor, I just added the source code to my article.

http://www.codeproject.com/useritems/grouper.asp[^]

Latez,
VectorX

Program in the tray does not allow to shutdown the computer

curt_russel22-Jan-06 20:21

curt_russel

22-Jan-06 20:21

At first, I apologize for my english.

I have a problem, which now I don't have any kinds of solution of it.
My program is minimizing into the tray and becomes invisible in the Windows taskbar. It happends this way:
this.WindowState = FormWindowState.Minimized;
this.ShowInTaskbar = false;

And after this actions I cannot shutdown the computers or restart the system until I unload (close)my program by hand.
Could you give me an advise what to do to solve my trouble.

Thanks in advance.

Re: Program in the tray does not allow to shutdown the computer

Dave Kreskowiak23-Jan-06 6:04

Dave Kreskowiak

23-Jan-06 6:04

I take it you're handing the form's Closing event and cancelling the Close so you can, instead, minimize the form? This is where your problem is. Since your cancelling the Close, your app never closes and it causes Windows to abort the Logoff/Shutdown.

You might want to read this[^] little tidbit under "System Notification Tray".

RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

-- modified at 12:05 Monday 23rd January, 2006

Re: Program in the tray does not allow to shutdown the computer

curt_russel23-Jan-06 20:18

curt_russel

23-Jan-06 20:18

Thank you for your wish to help!
It's very interesting link you pointed.
But unfortunately I have not found the answer on my question in this article.

Re: Program in the tray does not allow to shutdown the computer

Dave Kreskowiak24-Jan-06 2:46

Dave Kreskowiak

24-Jan-06 2:46

The point of that article was that there is no startup form! Your app creates the NotifyIcon and continues from there.

RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

Is C# a pure object oriented language?

vikas amin22-Jan-06 19:33

vikas amin

22-Jan-06 19:33

Is C# a pure object oriented language?

Vikas Amin
Embin Technology
Bombay

Re: Is C# a pure object oriented language?

M@dHatter22-Jan-06 20:17

M@dHatter

22-Jan-06 20:17

Re: Is C# a pure object oriented language?

Sebastian Schneider22-Jan-06 21:01

Sebastian Schneider

22-Jan-06 21:01

I would say "yes", but, as with any other language, someone will find a way to prove me wrong Wink | ;)

Cheers,
Sebastian

--
Contra vim mortem non est medicamen in hortem.

Re: Is C# a pure object oriented language?

Guffa22-Jan-06 22:48