Re: Initializing reference variables in a struct - C# Discussion Boards

Venkatesh.P14-Nov-07 18:08

14-Nov-07 18:08

Hi..
I am using ASP.NET 2.0 +C#. In my webpage, I have a listbox. I have declared the listbox as shown below:
<code> <td align="center" valign="middle" style="width: 160px">
<asp:ListBox ID="lstPickAvillQueue" runat="server" Height="120px" Width="144px">
</asp:ListBox></td></code>
I want to provide a horizontal scrollbar so that long names can be easily seen. How to provide the horizontal scrollbar to the listbox?

Thank You
Venkat

Re: providing scrollbar in listbox+c#?

Venkatesh.P14-Nov-07 18:28

Venkatesh.P

14-Nov-07 18:28

Hi..

I checked the code project articles. One author had suggested to use the <div> tag with Overflow:Auto .

I Have changed the code as below. Is this proper?

<code> <tr>
<td align="center" valign="middle" style="width: 160px">
<div style="Height:100px;Width:200px;Overflow:Auto">
<asp:ListBox ID="lstPickAvillQueue" runat="server" Height="120px" Width="144px">
</asp:ListBox>  </div></td>
</tr></code>

Thanks & Regards,
Venkat

Showing Gridlines in a GridView while using Windows Presentation Foundation

Darmi14-Nov-07 17:52

Darmi

14-Nov-07 17:52

Hi,
I am using GridView of WPF.

I need to show horizontal and vertical grid lines.

Please help

re:remoting security

RameshwerE14-Nov-07 17:36

RameshwerE

14-Nov-07 17:36

Could anybody give me some idea on how to provide security in remoting.

Thanks & Regards,

Initializing reference variables in a struct

JoeRip14-Nov-07 17:29

JoeRip

14-Nov-07 17:29

Ah, structs. God love them. Because I can't.

Why am I getting the compiler error:

Field 'foo.myInts' must be fully assigned before control leaves the constructor.

For this code:

public struct foo<br />
  {<br />
    public readonly List{{int}} myInts;<br />
<br />
    public foo(int unususedInt)<br />
    {<br />
      List{{int}} myInts = new List{{int}}();<br />
      myInts.Add(1);<br />
    }<br />
  }

Where {{ and }} are really angle brackets, but HTML can't handle that.

If it's complaining about the Default Constructor - well, I don't have any control over that, and I have no idea how the compiler is intializing myInts. And in the public constructor, I am clearly assigning myInts.

What exactly is it complaining about?

Re: Initializing reference variables in a struct

Not Active14-Nov-07 17:31

Not Active

14-Nov-07 17:31

public struct foo<br />
  {<br />
    public readonly List myInts;<br />
<br />
    public foo(int unususedInt)<br />
    {<br />
      List myInts = new List();<br />
      myInts.Add(1);<br />
    }<br />
  }

only two letters away from being an asset

Re: Initializing reference variables in a struct

JoeRip14-Nov-07 17:35

JoeRip

14-Nov-07 17:35

Thanks. It took me a second to see what you had changed Smile | :)

. I was about to reply with "Ummm... what?"

Man, I wish the compiler error was less ambiguous here. It seems more like the foul was declaring myInts twice, not that it was unassigned.

Re: Initializing reference variables in a struct

Not Active14-Nov-07 17:57

Not Active

14-Nov-07 17:57

JoeRip wrote:
seems more like the foul was declaring myInts twice, not that it was unassigned.

No, the problem was that the member variable was unassigned. You created an instance that was scoped only to the constructor.

only two letters away from being an asset

Re: Initializing reference variables in a struct

JoeRip14-Nov-07 17:59

JoeRip

14-Nov-07 17:59

But shouldn't there have been a name collision? The name was already declared as a field, and accessible at the constuctor level.

Re: Initializing reference variables in a struct

Not Active14-Nov-07 18:15

Not Active

14-Nov-07 18:15

The variable in the constructor is scoped locally and overrides the one declared at the struct level.

It is a good practice to use properties to access member variables, and not make them public. Also, the practice of naming members variables with either m_ or _ (underscore) would alert you to this type of error.

only two letters away from being an asset

How to Run an EXE through windows service?

Reddy Prakash14-Nov-07 17:15

Reddy Prakash

14-Nov-07 17:15

Can any one tell me how to run an EXE through windows service.

Thanks in Advance.

Re: How to Run an EXE through windows service?

Not Active14-Nov-07 17:28

Not Active

14-Nov-07 17:28

What do you mean? Do you mean how to create a Windows service, or do you mean how to run an exe from a Windows service?

only two letters away from being an asset

Re: How to Run an EXE through windows service?

Reddy Prakash14-Nov-07 17:38

Reddy Prakash

14-Nov-07 17:38

How to run an exe from a windows service?

Re: How to Run an EXE through windows service?

coolestCoder14-Nov-07 17:28

coolestCoder

14-Nov-07 17:28

Have you had a look at Process.Start method ?

"A good programmer is someone who looks both ways before crossing a one-way street." -- Doug Linder

coolestCoder

Re: How to Run an EXE through windows service?

Abhijit Jana14-Nov-07 17:41

Abhijit Jana

14-Nov-07 17:41

use System.Diagonistic and create a process class object and give thhe process file name as your exe and start it !!!! Smile | :)

Best Regards
-----------------
Abhijit Jana
View My CodeProject Articles

"Success is Journey it's not a destination"

Re: How to Run an EXE through windows service?

Reddy Prakash14-Nov-07 17:40

Reddy Prakash

14-Nov-07 17:40

Yes i tried with this method, but no result

Re: How to Run an EXE through windows service?

Abhijit Jana14-Nov-07 17:44

Abhijit Jana

14-Nov-07 17:44

can you explain exactly what do you want ? Confused | :confused:

Best Regards
-----------------
Abhijit Jana
View My CodeProject Articles

"Success is Journey it's not a destination"

Re: How to Run an EXE through windows service?

Vasudevan Deepak Kumar14-Nov-07 18:47

Vasudevan Deepak Kumar

14-Nov-07 18:47

Abhijit Jana wrote:
can you explain exactly what do you want ?

Might be this is one other form of code solicitation?

Vasudevan Deepak Kumar
Personal Homepage
Tech Gossips

Yesterday is a canceled check. Tomorrow is a promissory note. Today is the ready cash. USE IT.

Re: How to Run an EXE through windows service?

Vasudevan Deepak Kumar14-Nov-07 18:41

Vasudevan Deepak Kumar

14-Nov-07 18:41

Reddy Prakash wrote:
but no result

What do you mean? Did it crash with any exceptions?

Vasudevan Deepak Kumar
Personal Homepage
Tech Gossips

Yesterday is a canceled check. Tomorrow is a promissory note. Today is the ready cash. USE IT.

Re: How to Run an EXE through windows service?

Adeel Chaudhry14-Nov-07 17:45

Adeel Chaudhry

14-Nov-07 17:45

Hi Reddy,

This might be of some help:

http://www.thescripts.com/forum/thread376151.html[^]

Regards,

Adeel

Do rate the reply, if it helps or even if it doesnot, because it helps the members to know, what solved the issue. Thanks.

Remoting Events ! Help Please !!

D2raghu14-Nov-07 17:08

D2raghu

14-Nov-07 17:08

have remoting with events working on a single machine, but... when I put the
> server, client, and remote object on a 2nd machine.... things do not work
> completely.. So basically I have the same 3 directories (Client, Server,
> RemoteObject) on two machines. I run the server on machine1, the client on
> machine2... Now client indeed has access to the remote object... and the
> client does call a function on that remote object... as the console for the
> server writes out a msg when it gets a request...
>
> public void BroadCastMessage(string msg)
> {
> IAsyncResult ar;
>
> Console.WriteLine("Raising EventHandler1");
>
> System.Delegate[] invkList = EventHandler1.GetInvocationList();
> IEnumerator ie = invkList.GetEnumerator();
> while(ie.MoveNext())
> {
> RemotingObject.EventHandlerDelegate handler =
> (RemotingObject.EventHandlerDelegate)ie.Current;
> try
> {
> ar = handler.BeginInvoke(msg,null,null);
> }
>
> upon calling BeginInvoke, it sits for a second or three... but nothing on
> the client occurs...
>
> Now if I ran the client & server on the same machine, things work....
>
> any clues please....

Browser Control

A.Asif14-Nov-07 16:58

A.Asif

14-Nov-07 16:58

Hi All,

I am working on a project that uses a browser control. Browser control was working fine till I use Append Child to insert anchor element into document. Problem is when page finish loading, ScrollBar in browser control scrolls down automatically and shows the bottom of the web page. I don't want scrollbars to scroll down automatically because I want show the top of the page. Pleaase help.

Thanks,

A.Asif

Re: Browser Control

Not Active14-Nov-07 17:25

Not Active

14-Nov-07 17:25

One post is enough

only two letters away from being an asset

Re: Browser Control

A.Asif15-Nov-07 3:38

A.Asif

15-Nov-07 3:38

Second post was a mistake.