C# Discussion Boards - CodeProject

Agweet4-Aug-10 22:46

4-Aug-10 22:46

Hi All,

i am trying to create a socket connection to a server and send it a XML string and receive the results.

For some reason it does not work, here is my code:

XML String: <?xml version="1.0" encoding="UTF-8" standalone="yes"? <MemberLookupRequest><Code>XXX</Code><idNumber>XXXXXXXXXXXXX</idNumber></MemberLookupRequest>

and my socket connection code:

try
{
TcpClient socketForServer;
socketForServer = new TcpClient(xxx.xxx.xxx.xxx, 6000);

socketForServer.SendTimeout = 300000;
socketForServer.ReceiveTimeout = 300000;

NetworkStream networkStream = socketForServer.GetStream();
System.IO.StreamReader streamReader =
new System.IO.StreamReader(networkStream);
System.IO.StreamWriter streamWriter =
new System.IO.StreamWriter(networkStream);
string outputString;
// read the data from the host and display it

streamWriter.WriteLine(XML String goes here);

streamWriter.Flush();

outputString = streamReader.ReadToEnd();

networkStream.Close();

return outputString;
}
catch (Exception ex)
{
return ex.Message.ToString();
}

it shows that i am connected to the server but i don't get any results back.

can anyone please help me with this?

thanks in advance!

living life on the flip side

Re: Socket Connection

freakyit5-Aug-10 1:54

freakyit

5-Aug-10 1:54

may be the server will not send data back to the client?!? this piece of code is not very helpfull for a good answer.

first your XML you want to send is corrupt! take a look at the xml-declaration >.

sencond one is that you will read data from the stream without knowing whether data is available or not ^^
use the search function to take a look at articles that work as server/client app..

Re: Socket Connection

Ennis Ray Lynch, Jr.5-Aug-10 2:27

Ennis Ray Lynch, Jr.

5-Aug-10 2:27

You are asking for results immediately but results would not be available immediately. You need a read loop to get the number of bytes back you expect from the server.

Need custom software developed? I do custom programming based primarily on MS tools with an emphasis on C# development and consulting. I also do Android Programming as I find it a refreshing break from the MS.

"And they, since they Were not the one dead, turned to their affairs" -- Robert Frost

Re: Socket Connection

Member 7906565-Aug-10 2:28

Member 790656

5-Aug-10 2:28

You need to block with

networkStream.Read()

Otherwise the connection closes before you have the oportunity to read data. Wink | ;)

See ms-help://MS.VSCC.v90/MS.MSDNQTR.v90.en/fxref_system/html/b46663bf-ae16-3bd8-73c3-2d057d0868e3.htm

Re: Socket Connection

Agweet5-Aug-10 3:58

Agweet

5-Aug-10 3:58

Hi All,

Thanks for the answers, will take them into account and will post my results.

living life on the flip side

How to Call a Server side Function on the Client side

Vimalsoft(Pty) Ltd4-Aug-10 22:04

Vimalsoft(Pty) Ltd

4-Aug-10 22:04

Good Day All

i have a Function e.g

public String Getdata(String mystr)

{

//Do what ever

//return  a String

}

and i want to call this function and pass data in Javascript like this

function KeyPress() {
            var TExtbox1 = document.getElementById('Text1');
        
         if (TExtbox1.value.length == 2) {

        //call the function here and pass the textbox1 value.  

   return false;
         }
        }

Thanks

Vuyiswa Maseko,

Spoted in Daniweb-- Sorry to rant. I hate websites. They are just wierd. They don't behave like normal code.

C#/VB.NET/ASP.NET/SQL7/2000/2005/2008
http://www.vuyiswamaseko.com
vuyiswa@its.co.za
http://www.itsabacus.co.za/itsabacus/

Re: How to Call a Server side Function on the Client side

Prosanta Kundu online4-Aug-10 22:40

Prosanta Kundu online

4-Aug-10 22:40

You can use PageMethod.

Re: How to Call a Server side Function on the Client side

Vimalsoft(Pty) Ltd4-Aug-10 23:52

Vimalsoft(Pty) Ltd

4-Aug-10 23:52

Thanks , Now i have this

On the Server side

[WebMethod, System.Web.Script.Services.ScriptMethod]
public static string Getadata(String Data)
{
  String Scriptt  = "<script>alert('" + Data + "');</script>";
  return Scriptt;
}

function KeyPress() {


      var TExtbox1 = document.getElementById('Text1');
      var Results;
      if (TExtbox1.value.length == 2)
      {
         Results = Getadata(TExtbox1.value);
         alert(Results);
      }
      return false;
  }

and my ScriptManager

<asp:ScriptManager ID="ScriptManager1" EnablePageMethods="true"  runat="server">
</asp:ScriptManager>

but when i run it nothing happens

Thanks

Re: How to Call a Server side Function on the Client side

Pete O'Hanlon5-Aug-10 0:07

Pete O'Hanlon

5-Aug-10 0:07

You call Getadata in your javascript. You should call PageMethods.Getadata instead.

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.

My blog | My articles | MoXAML PowerToys | Onyx

Re: How to Call a Server side Function on the Client side

Vimalsoft(Pty) Ltd5-Aug-10 0:16

Vimalsoft(Pty) Ltd

5-Aug-10 0:16

Thanks , sorry i missed that, now i have a small problem with my javascript

<br />
     function KeyPress() {<br />
<br />
<br />
            var TExtbox1 = document.getElementById('Text1');<br />
            var Results;<br />
             if (TExtbox1.value.length == 2) {<br />
             <br />
                Results = PageMethods.Getadata(TExtbox1.value);<br />
                alert(Results);<br />
             }   <br />
             return false;<br />
         }<br />

the alert shows me "undefined"

is there anything wrong there ?

Re: How to Call a Server side Function on the Client side

Pete O'Hanlon5-Aug-10 1:31

Pete O'Hanlon

5-Aug-10 1:31

That's because a script method doesn't return like this. What you need to do is supply a callback function which your javascript executes. Here's a sample page:

HTML

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
  <title>Untitled Page</title>
  <script>
    function keyPress()
    {
      var tb = document.getElementById('Text1');
      if (tb.value.length == 2)
        PageMethods.Getadata(tb.value, myFunction);
      return false;
    }
    function myFunction(msg)
    {
		alert(msg);
    }
  </script>
</head>
<body>
  <form id="form1" runat="server">
    <asp:ScriptManager ID="ScriptManager1" runat="server" EnablePageMethods="True" />
    <div>
      <input type="text" id="Text1" onkeypress="keyPress()" />
    </div>
  </form>
</body>
</html>

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.

My blog | My articles | MoXAML PowerToys | Onyx

Re: How to Call a Server side Function on the Client side

Vimalsoft(Pty) Ltd5-Aug-10 20:16

Vimalsoft(Pty) Ltd

5-Aug-10 20:16

Good Morning Pete

Thank you for your kind reples. its working like wonders. I have one last question. as you have seen i have been using a html textbox not an asp.net textbox. i see the asp text does not have the Keypress event , Is there a way that i can modify this working code to work with asp.net textbox defined like this

<asp:TextBox ID="Text2" runat="server"></asp:TextBox>

Thanks

Re: How to Call a Server side Function on the Client side

Vimalsoft(Pty) Ltd6-Aug-10 22:07

Vimalsoft(Pty) Ltd

6-Aug-10 22:07

Thanks for your help , i found the solution to my last request.

Cant find BannerBitmap property ( win form setup creation )

Krishna Varadharajan4-Aug-10 21:55

Krishna Varadharajan

4-Aug-10 21:55

Hi,

I need to insert a logo image in banner bitmap property while creating a setup. But from the property i couldn't find the bannerbitmap property. Can you pls help me.....

Thanks.

krishna

Re: Cant find BannerBitmap property ( win form setup creation )

freakyit5-Aug-10 1:56

freakyit

5-Aug-10 1:56

win form setup creation???? you meen wix setup or you are writing your own ?!?!? there are definalty missing information. in wix you can set the banner image using the old one by just renaming the file Wink | ;)

Re: Cant find BannerBitmap property ( win form setup creation )

GenJerDan5-Aug-10 8:33

GenJerDan

5-Aug-10 8:33

Do you mean in a Setup project in Visual Studio?

If so, right-click the Project and select View | User Interface (or us the menu View |Editor | User Interface)

In the properties of Install | Start | Welcome, "Banner Bitmap" is at the top. Just browse for what you want to use.

How do I include textbox data in SQL query?

Joe Stansfield4-Aug-10 20:44

Joe Stansfield

4-Aug-10 20:44

Hi,

This is most likely a basic problem but I can't get my head around it!

I am trying to construct a parameterized sql query that takes information entered from a textbox (the search box of the query) and adds it to the query before it executes.

What I would like to do is have the user search the 'CODE' column by entering something like:

= "CO" or "SO"

and have that added to my sql query after WHERE CODE

Any help greatly appreciated!

Joe

Re: How do I include textbox data in SQL query?

JHizzle4-Aug-10 21:55

JHizzle

4-Aug-10 21:55

Erm. AFAIK the whole point of a parameterized query was to stop this kind of design so that's not going to work.
You'd have to go back to the old skool method of generating the entire SQL statement and firing it back to your DB. I'd check if you really need to as this is horrendously insecure. Can you just not create a search stored proc and pass in a search term on that?

Re: How do I include textbox data in SQL query?

Joe Stansfield10-Aug-10 14:01

Joe Stansfield

10-Aug-10 14:01

Thanks,

I'll look at doing it through the stored procedure as you mentioned.

Re: How do I include textbox data in SQL query?

Pete O'Hanlon5-Aug-10 0:19

Pete O'Hanlon

5-Aug-10 0:19

It depends on the type of database you are using as to how you tackle this, but you could add a temporary table that you use to add the individual parsed out elements in as individual elements, and then perform your main query using that table as a linked table, so you'd end up with SQL along the lines of:

SELECT ... FROM MyTable INNER JOIN MyTemporaryTable ON MyTable.Code = MyTemporaryTable.Code

Also, rather than having them enter the codes, why not display them in a list that they can select from? This way you save them having to remember potentially archane code sequences.

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.

My blog | My articles | MoXAML PowerToys | Onyx

Re: How do I include textbox data in SQL query?

PIEBALDconsult5-Aug-10 3:08

PIEBALDconsult

5-Aug-10 3:08

Something like cmd.Parameters [ "@CodeVal" ].Value = tbCode.Text ; ?

Message Removed

5-Aug-10 3:40

brunoseixas

5-Aug-10 3:40

Message Removed

Re: How do I include textbox data in SQL query?

Pete O'Hanlon5-Aug-10 11:42

Pete O'Hanlon

5-Aug-10 11:42

Apart from being wide open to a SQL injection attack, this just won't work because it only applies to 1 value.

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.

My blog | My articles | MoXAML PowerToys | Onyx

Urgent

S.Bharath Ram4-Aug-10 16:57

S.Bharath Ram

4-Aug-10 16:57

Hello guys...
I am building a c# app to detect the internet connection and then send sms to a person regarding the status. I've got the codes with me but i wrote them as individual modules. I need to integrate them. any help????????? And by the way its a c# windows app...

Re: Urgent

Yusuf4-Aug-10 17:44

Yusuf

4-Aug-10 17:44

S.Bharath Ram wrote:
I've got the codes with me but i wrote them as individual modules.

What makes a difference if it is individual module or one single module, if the functionality of the application is as simple as you describe it.

S.Bharath Ram wrote:
I need to integrate them.

integrate what? the difference modules? Well, if you know how to write the modules, you will know how to integrate them Wink | ;)

Yusuf
May I help you?

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