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  • Why are these lines being skipped? (java)

    - by David
    Here's the relevant bit of the source code: class Dice { String name ; int x ; int[] sum ; ... public Dice (String name) { this.name = name ; this.x = 0 ; this.sum = new int[7] ; } ... public static void main (String[] arg) { Dice a1 = new Dice ("a1") ; printValues (a1) ; } public static void printDice (Dice Dice) { System.out.println (Dice.name) ; System.out.println ("value: "+Dice.x) ; printValues (Dice) ; } public static void printValues (Dice Dice) { for (int i = 0; i<Dice.sum.length; i++) System.out.println ("#of "+i+"'s: "+Dice.sum[i]) ; } } Here is the output: #of 0's: 0 #of 1's: 0 #of 2's: 0 #of 3's: 0 #of 4's: 0 #of 5's: 0 #of 6's: 0 Why didn't these two lines execute inside printDice: System.out.println (Dice.name) ; System.out.println ("value: "+Dice.x) ; if they had then i would expect to see "a1" and "Value: 0" printed at the top of the rows of #of's

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  • Android - viewing SQLite databases on device?

    - by kape123
    Is there any tool that will allow me to browse databases on my Android device? Something like Sql Management Studio - you know GUI tool that displays databases, tables, row in tables, etc. I'm using Eclipse for development (if it is important for plug-in suggestions). Thanks!

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  • Static libraries in version-cross-compiled program

    - by Brian Postow
    I have a unix command line app (with big nasty makefile) that I'm trying to run on a mac. I am compiling it on a 10.6 system, with all of the appropriate libraries of course. The deployment environment is a 10.5 system, with no extra libraries. I compiled without -dynamic, and it appears to have static libraries, correctly. When I run it on the 10.6 system, it works. However, when I run it on the 10.5 system, I get: dyld: unknown required load command 0x80000022 I got this same error when I compiled things for the 10.6 system using the 10.5 xcode, so it looks like a version mis-match type problem. However, I used gcc-4.0, and $CFLAGS = -isysroot /Developer/SDKs/MacOSX10.5.sdk -mmacosx-version-min=10.5 so it SHOULD be set up for 10.5... any ideas? thanks Editing an ancient question: I have the exact same problem on a different computer. This time I am at 10.5.8, fully update, the same executable works on 10.6 still. Has anyone had any luck with this in the months since I asked this?

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  • whatz wrong in this SELECt query of MSSQL... ?

    - by user522211
    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load Dim SQLData As New System.Data.SqlClient.SqlConnection("Data Source=.\SQLEXPRESS;AttachDbFilename=|DataDirectory|\Database.mdf;Integrated Security=True;User Instance=True") Dim cmdSelect As New System.Data.SqlClient.SqlCommand("SELECT * FROM Table1 WHERE Date =" & TextBox1.Text & "'", SQLData) SQLData.Open() Dim dtrReader As System.Data.SqlClient.SqlDataReader = cmdSelect.ExecuteReader() While dtrReader.Read() For j As Integer = 1 To 31 Dim s As String = "s" & j If dtrReader(s.ToString()).ToString() = "b" Then Dim img As ImageButton = DirectCast(Panel1.FindControl(s.ToString()), ImageButton) img.ImageUrl = "~/Images/booked.gif" img.Enabled = False End If Next End While dtrReader.Close() SQLData.Close() End Sub SHOWS AN ERROR : Unclosed quotation mark after the character string ''.

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  • plot a line graph in vb.net

    - by Husna5207
    this is my function for plotting a graph in vb.net how I'm going to replace the ("Jon", 10),("Jordan", 30) with a value that i search from database ? Private Sub chart_btn_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles chart_btn.Click Chart1.Series("Student").Points.AddXY("Jon", 10) Chart1.Series("Student").Points.AddXY("Jon", 10) Chart1.Series("Student").ChartType = System.Windows.Forms.DataVisualization.Charting.SeriesChartType.Bar End Sub

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  • Producing dynamically generated range names in Excel using c#

    - by Matey
    What is the best way to produce several tables of unknown size on the same worksheet? Values will be pulled from an oracle database and are used as values on several tables. Is it possible to create dynamic named ranges or is some other method desirable? I have some experience with c# but do not have access to VSTO 2005. Any help or suggestions would be greatly appreciated. I am willing to explain the problem further if requested.

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  • Sending XML to Servlet from Action Script

    - by John Doe
    I am only getting empty arrays on output. Anyone know what Exactly I'm doing wrong? package myDungeonAccessor; /* * To change this template, choose Tools | Templates * and open the template in the editor. */ import java.io.IOException; import java.io.ObjectInputStream; import java.io.ObjectOutputStream; import java.io.PrintWriter; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; public class myDungeonAccessorServlet extends HttpServlet { private myDungeonAccessor dataAccessor; /** * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods. * @param request servlet request * @param response servlet response * @throws ServletException if a servlet-specific error occurs * @throws IOException if an I/O error occurs */ protected void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("text/html;charset=UTF-8"); PrintWriter out = response.getWriter(); try { /* TODO output your page here out.println("<html>"); out.println("<head>"); out.println("<title>Servlet myDungeonAccessorServlet</title>"); out.println("</head>"); out.println("<body>"); out.println("<h1>Servlet myDungeonAccessorServlet at " + request.getContextPath () + "</h1>"); out.println("</body>"); out.println("</html>"); */ } finally { out.close(); } } // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code."> /** * Handles the HTTP <code>GET</code> method. * @param request servlet request * @param response servlet response * @throws ServletException if a servlet-specific error occurs * @throws IOException if an I/O error occurs */ @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { processRequest(request, response); // PrintWriter out = response.getWriter(); System.out.println("yo mom"); } /** * Handles the HTTP <code>POST</code> method. * @param request servlet request * @param response servlet response * @throws ServletException if a servlet-specific error occurs * @throws IOException if an I/O error occurs */ @Override protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { //System.out.println("heppo"); //dataAccessor = new myDungeonAccessor(); System.out.println("Hello"); try { System.out.println("HEADERS: " + request.getHeaderNames()); ObjectInputStream in = new ObjectInputStream(request.getInputStream()); ObjectOutputStream out = new ObjectOutputStream(response.getOutputStream()); } catch(Exception e) { e.printStackTrace(); } System.out.println("WAZZUP"); byte [] buffer = new byte[4096]; //in.read(buffer); System.out.println("TEST!"); String s = new String(buffer); System.out.println("Update S:" + s); } /** * Returns a short description of the servlet. * @return a String containing servlet description */ @Override public String getServletInfo() { return "Short description"; } }

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  • prefix and postfix increments while comparing variables

    - by miatech
    could someone explain why this code output is not equals not equals 2 in the first if statement it seems that a = 0 b/c is a postfix increment; therefore a will not increase untile next line; however, the two a's are not equal why? and in the second if when I run the debugger the value of a is 2, but the test is false, why? public static void main (String[] args) { int a = 0; if (a++ == a++) { System.out.println("equals"); } else { System.out.println("not equals"); } if (++a == 2) { System.out.println("equals 2"); } else { System.out.println("not equals 2"); } }

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  • Index out of bounds exception in c#

    - by Naga
    I have the following code in my program which is throwing index out of bound exception at line yearList.SetValue(years[count], count); protected void invoiceYear_DataBound(object sender, EventArgs e) { //invoiceYear.SelectedItem.Value= GetYearRange(); String[] years = GetYearRange().Split(new char[] { '[', ',', ']',' ' }); ListItem [] yearList = new ListItem[]{}; System.Diagnostics.Debug.WriteLine("years-->" + years.Length); for (int i = 0; i < years.Length; i++) { System.Diagnostics.Debug.WriteLine("years-->" + years.GetValue(i)); } int count = 0; foreach (String str in years) { if (string.IsNullOrEmpty(str)) System.Diagnostics.Debug.WriteLine("empty"); else { yearList.SetValue(years[count], count); count++; } } //System.Diagnostics.Debug.WriteLine("yearList-->" + yearList.GetValue(0)); //invoiceYear.Items.AddRange(yearList); }

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  • why create CLSID_CaptureGraphBuilder2 instance always failed in a machine

    - by Yigang Wu
    It's a real strange issue, the machine information below is from DXDiag. There is no error reported, but create CLSID_CaptureGraphBuilder2 instance always failed in the machine. It's okay to create CLSID_FilterGraph. Before create CLSID_CaptureGraphBuilder2, I have called CoInitialize and created CLSID_FilterGraph. Only this machine has the error, what dll related with this interface or any function needed to call before to make it work? Thanks in advance. System Information Time of this report: 4/24/2010, 09:46:58 Machine name: TURION Operating System: Windows XP Home Edition (5.1, Build 2600) Service Pack 3 (2600.xpsp_sp3_qfe.100216-1510) Language: Japanese (Regional Setting: Japanese) System Manufacturer: To Be Filled By O.E.M. System Model: MS-7145 BIOS: Default System BIOS Processor: AMD Turion(tm) 64 Mobile Technology MT-30, MMX, 3DNow, ~1.6GHz Memory: 768MB RAM Page File: 376MB used, 1401MB available Windows Dir: C:\WINDOWS DirectX Version: DirectX 9.0c (4.09.0000.0904) DX Setup Parameters: Not found DxDiag Version: 5.03.2600.5512 32bit Unicode DxDiag Notes DirectX Files Tab: No problems found. Display Tab 1: No problems found. Sound Tab 1: No problems found. Sound Tab 2: No problems found. Music Tab: No problems found. Input Tab: No problems found. Network Tab: No problems found.

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  • C# AES returns wrong Test Vectors

    - by ralu
    I need to implement some crypto protocol on C# and want to say that this is my first project in C#. After spending some time to get used on C# I found out that I am unable to get compliant AES vectors. using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Security.Cryptography; using System.IO; namespace ConsoleApplication1 { class Program { public static void Main() { try { //test vectors from "ecb_vk.txt" byte[] key = { 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; byte[] data = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; byte[] encTest = { 0x0e, 0xdd, 0x33, 0xd3, 0xc6, 0x21, 0xe5, 0x46, 0x45, 0x5b, 0xd8, 0xba, 0x14, 0x18, 0xbe, 0xc8 }; AesManaged aesAlg = new AesManaged(); aesAlg.BlockSize = 128; aesAlg.Key = key; aesAlg.Mode = CipherMode.ECB; ICryptoTransform encryptor = aesAlg.CreateEncryptor(); MemoryStream msEncrypt = new MemoryStream(); CryptoStream csEncrypt = new CryptoStream(msEncrypt, encryptor, CryptoStreamMode.Write); StreamWriter swEncrypt = new StreamWriter(csEncrypt); swEncrypt.Write(data); swEncrypt.Close(); csEncrypt.Close(); msEncrypt.Close(); aesAlg.Clear(); byte[] encr; encr = msEncrypt.ToArray(); string datastr = BitConverter.ToString(data); string encrstr = BitConverter.ToString(encr); string encTestStr = BitConverter.ToString(encTest); Console.WriteLine("data: {0}", datastr); Console.WriteLine("encr: {0}", encrstr); Console.WriteLine("should: {0}", encTestStr); Console.ReadKey(); } catch (Exception e) { Console.WriteLine("Error: {0}", e.Message); } } } } Output is wrong: data: 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 encr: A0-3C-C2-22-A4-32-F7-C9-BA-36-AE-73-66-BD-BB-A3 should: 0E-DD-33-D3-C6-21-E5-46-45-5B-D8-BA-14-18-BE-C8 I am sure that there is correct AES implementation in C#, so I need some advice from C# wizard to help whit this. Thanks

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  • DependencyProperty Orientation problem

    - by byte
    I am learning WPF and am trying to create my first UserControl. My UserControl consists of StackPanel StackPanel contains a Label and TextBox I am trying to create two Dependency Properties Text for the Label Orientation for the StackPanel - The orientation will affect the position of the Label and TextBox effectively I have successfully created a Text dependency property and bind it to my UserControls . But when I created the Orientation property, I seem to get following error in get property The as operator must be used with a reference type or nullable type ('System.Windows.Controls.Orientation' is a non-nullable value type) public static DependencyProperty OrientationProperty = DependencyProperty.Register("Orientation", typeof(System.Windows.Controls.Orientation), typeof(MyControl), new PropertyMetadata((System.Windows.Controls.Orientation)(Orientation.Horizontal))); public Orientation Orientation { get { return GetValue(OrientationProperty) as System.Windows.Controls.Orientation; } set { SetValue(OrientationProperty, value); } } Appreciate your help.

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  • SSL_accept hangs... sometimes ( C, linux, openssl )

    - by zbigh
    I'm currently working on an embedded linux system. There are two crucial client applications on the system that connect to an external server ( on another embedded system, all written in C ). The two apps use different certificates. The ssl connection works... At least usually, but from time to time an error occures: the server hangs on SSL_accept() when accepting connection from one of the applications - the one using older certificates. Restarting the server application does not help, nor does restarting the client - the only way is to reboot the server system, unless I create a symbilic link to the new certificates used by the other app - only then will restarting the server app work. Never does the error occur when both applications use the same, new certificate. Could this happen due to some strange openssl cache or something like that?

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  • Cannot Generate ParameterSetMetadata While Programmatically Creating A Parameter Block

    - by Steven Murawski
    I'm trying to programmatically create a parameter block for a function ( along the lines of this blog post ). I'm starting with a CommandMetadata object (from an existing function). I can create the ParameterMetadata object and set things like the ParameterType, the name, as well as some attributes. The problem I'm running into is that when I use the GetParamBlock method of the ProxyCommand class, none of my attributes that I set in the Attributes collection of the ParameterMetadata are generated. The problem this causes is that when the GetParamBlock is called, the new parameter is not annotated with the appropriate Parameter attribute. Example: function test { [CmdletBinding()] param ( [Parameter()] $InitialParameter) Write-Host "I don't matter." } $MetaData = New-Object System.Management.Automation.CommandMetaData (get-command test) $NewParameter = New-Object System.Management.Automation.ParameterMetadata 'NewParameter' $NewParameter.ParameterType = [string[]] $Attribute = New-Object System.Management.Automation.ParameterAttribute $Attribute.Position = 1 $Attribute.Mandatory = $true $Attribute.ValueFromPipeline = $true $NewParameter.Attributes.Add($Attribute) $MetaData.Parameters.Add('NewParameter', $NewParameter) [System.Management.Automation.ProxyCommand]::GetParamBlock($MetaData)

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  • Copy image to BLOB from client pc aka Java function in Oracle

    - by mumich
    Hi guys, I've been stuck with this for past two days. I've go java function stored in Oracle system which is supposed to copy image from local drive do remote database and store it in BLOB - it's called CopyBLOB and looks like this: import java.sql.*; import oracle.sql.*; import java.io.*; public class CopyBLOB { static int id; static String fileName = null; static Connection conn = null; public CopyBLOB(int idz, String f) { id = idz; fileName = f; } public static void copy(int ident, String path) throws SQLException, FileNotFoundException { CopyBLOB cpB = new CopyBLOB(ident, path); cpB.getConnection(); cpB.callUpdate(id, fileName); } public void getConnection() throws SQLException { DriverManager.registerDriver (new oracle.jdbc.OracleDriver()); try { conn = DriverManager.getConnection("jdbc:oracle:thin:@oraserv.ms.mff.cuni.cz:1521:db", "xxx", "xxx"); } catch (SQLException sqlex) { System.out.println("SQLException while getting db connection: "+sqlex); if (conn != null) conn.close(); } catch (Exception ex) { System.out.println("Exception while getting db connection: "+ex); if (conn != null) conn.close(); } } public void callUpdate(int id, String file ) throws SQLException, FileNotFoundException { CallableStatement cs = null; try { conn.setAutoCommit(false); File f = new File(file); FileInputStream fin = new FileInputStream(f); cs = (CallableStatement) conn.prepareCall( "begin add_image(?,?); end;" ); cs.setInt(1, id ); cs.setBinaryStream(2, fin, (int) f.length()); cs.execute(); conn.setAutoCommit(true); } catch ( SQLException sqlex ) { System.out.println("SQLException in callUpdateUsingStream method of given status : " + sqlex.getMessage() ); } catch ( FileNotFoundException fnex ) { System.out.println("FileNotFoundException in callUpdateUsingStream method of given status : " + fnex.getMessage() ); } finally { try { if (cs != null) cs.close(); if (conn != null) conn.close(); } catch ( Exception ex ) { System.out.println("Some exception in callUpdateUsingStream method of given status : " + ex.getMessage( ) ); } } } } The wrapper function is defined in package "MyPackage" as folows: procedure image_adder( id varchar2, path varchar2 ) AS language java name 'CopyBLOB.copy(java.lang.String, java.lang.String)'; And the inserting function called image_add is as simple as this: procedure add_image( id numeric(10), pic blob) AS BEGIN insert into pictures values (seq_pic.nextval, id, pic); END add_image; Now the problem: When I type call MyPackage.image_adder(1, 'd:\samples\img.jpg'); I get the ORA-29531 Error: No method copy in class CopyBLOB. Can you help me, please?

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  • Is it possible to call the main(String[] args) after catching an exception?

    - by Jason
    I'm working on a Serpinski triangle program that asks the user for the levels of triangles to draw. In the interests of idiot-proofing my program, I put this in: Scanner input= new Scanner(System.in); System.out.println(msg); try { level= input.nextInt(); } catch (Exception e) { System.out.print(warning); //restart main method } Is it possible, if the user punches in a letter or symbol, to restart the main method after the exception has been caught?

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  • Any tools or techniques for validating constraints programmatically between databases?

    - by Brandon
    If you had two databases, that had two tables between them that would normally implement a one to one (or many to many) constraint but cannot since they are separate databases, how would you validate this relationship in an application or test? Is there a simple way to do this? For example, a tool or technique that can, given a constraint type, tables and fields, does the validation. I imagine that this isn't the first time this come up so I'm hoping people can share their solution. Thanks.

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  • Processes Allocation in .Net

    - by mayap
    I'm writing some program which should perform calculations concurrently according to inputs which reach the system all the time. I'm considering 2 approaches to allocate "calculation" processes: Allocating processes in the system initialization, insert the ids to Processes table, and each time I want to perform calculation, I will check in the table which process is free. The questions: can I be sure that those processes are only for my use and that the operating system doesn't use them? Not allocating processes in advance. Each time when calculation should be done ask the operating system for free process. I need to know the following inputs from a "calculation" process: When calculation is finished and also if it succeeded or failed If a processes has failed I need to assign the calculation to another process Thanks in advance. Any help would be appreciated.

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  • What is some good software for designing MySQL databases?

    - by franzferdinand
    As above. Usually at work someone else does the database design, and when I do personal projects they're small enough to not really require more than five or six tables, but I'm about to start a personal project that I think will probably require around eleven or twelve tables and I'd like something to help me design it neatly and keep track of it.

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  • get timestamp using OracleCachedRowSet

    - by chetan
    Code : OracleCachedRowSet rowSet = new OracleCachedRowSet(); ResultObject obj = new ResultObject(0,null); PreparedStatement pstat = connection.prepareStatement(strQry); rowSet.populate(pstat.executeQuery()); rowSet.beforeFirst(); while(rowSet.next()){ System.out.println("Conference name "+rowSet.getString(1)); System.out.println("StartTime "+rowSet.getTimestamp(5)) ; } When i run above code i got error like : java.sql.SQLException: Invalid column type at oracle.jdbc.rowset.OracleCachedRowSet.getTimestamp(OracleCachedRowSet.java:4399) at test.Test.main(Test.java:102) Same thing is working fine(check below correct code) if i use ResultSet instead of OracleCachedRowSet PreparedStatement pstat = connection.prepareStatement(strQry); ResultSet rset = pstat.executeQuery(); while(rset.next()){ System.out.println("Conference name "+rset.getString(1)); System.out.println("StartTime "+rset.getTimestamp(5)) ; } Is there any way to getTimestamp() using OracleCachedRowSet

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  • Return rows from stored procedure

    - by molgan
    Hello I have this code: public IEnumerable<SomeClass> GetAvalibleThingies(DateTime startDate, DateTime endDate, int categoryID) { if (_entities.Connection.State == System.Data.ConnectionState.Closed) _entities.Connection.Open(); using (EntityCommand c = new EntityCommand("SomeEntities.GetAvalibleThingies", (EntityConnection)this._entities.Connection)) { c.CommandType = System.Data.CommandType.StoredProcedure; EntityParameter paramstartDate = new EntityParameter("startDate", System.Data.DbType.DateTime); paramstartDate.Direction = System.Data.ParameterDirection.Input; paramstartDate.Value = startDate; c.Parameters.Add(paramstartDate); ........ var x = c.ExecuteReader(); return x as IEnumerable<SomeClass>; }; But I can't get it to return a list of SomeClass. What's needed to do here? I use the entity framework 3.5sp1 one /M

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  • why i cant read my webservice with jquery???

    - by rima
    what's my function problem?I wana read from my webservice but I just receive error :( the browser message is: "undefined- status:error" when I press button just I see the error function of my Jqueary calling but I dont know why??plz help me. function SetupCompanyInfo(companyID) { //alert('aaa'); companyID = '1'; $.ajax({ type: "POST", url: '../../../Services/CompanyServices.asmx/GetCompanyInfo', data: "{}", contentType: "application/json; charset=utf-8", dataType: "json", success: OnSuccess, error: OnError }); } function OnSuccess(data, status) { SetMainBody(data); } function OnError(request, status, error) { SetMainBody(error + '- ' + request + ' status:' + status); } my webservice: using System; using System.Web.Services; using System.Web.Script.Services; /// <summary> /// Summary description for CompanyServices /// </summary> [WebService(Namespace = "http://tempuri.org/")] [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)] [ScriptService] //[System.ComponentModel.ToolboxItem(false)] public class CompanyServices : System.Web.Services.WebService { [WebMethod] public string GetCompanyInfo() { string response = "aaa"; Console.WriteLine("here"); return response.ToString(); } [WebMethod] public string GetCompanyInfo(string id) { string response = "aaa"; Console.WriteLine("here2"+id); return response.ToString(); } } my aspx file,part of head and my button code: <script src="../../Scripts/InnerFunctions.js" type="text/javascript"></script> <script src="../../Scripts/jquery-1.3.2.min.js" type="text/javascript"></script> <script src="../../Scripts/TabMenu.js" type="text/javascript"></script> <script src="Scripts/InternalFunctions.js" type="text/javascript"></script> <div dir="rtl" style="border: 1px solid #CCCCCC"> <asp:Image ID="Image1" runat="server" ImageUrl="../../generalImg/Icons/64X64/settings_Icon_64.gif" style="width: 27px; height: 26px" onclick="SetupCompanyInfo(1)" /></div>

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