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• I got the address of a large managed object in WinDbg, what next?

  - by Mahen

  I created a high memory utilization dump and using !dumpheap -stat and !dumpheap -mt I got the address of two large string generic list of 30 MB each. I want to know more about these lists. What they contain or which piece of code is using them. Is there a way to find them out? 0:000 !do 2b370038 Name: System.Object[] MethodTable: 71e240bc EEClass: 71c0da54 Size: 33554448(0x2000010) bytes Array: Rank 1, Number of elements 8388608, Type CLASS Element Type: System.Collections.Generic.List`1[[System.String, mscorlib]] Fields: None

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• storage classes

  - by ramyabanu

  what is the difference between a variable declared as an auto and static? what is the difference in allocation of memory in auto and static variable? why do we use static with array of pointers and what is its significance?

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• Need to ignore property in XmlSerialization because of circular reference

  - by NestorArturo

  Have an object with a property I don't need to serialize. The type of this property generates a circular reference which I expected, so I decorated this property with everything comes to my mind: private clsDeclaracion _Declaracion; [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)] [System.Xml.Serialization.XmlIgnore] public clsDeclaracion Declaracion { get { return _Declaracion; } set { _Declaracion = value; } } However, the circular reference keeps firing. Tried using a public field with no luck. This is my serialization code: System.Xml.Serialization.XmlSerializer Serializador = new System.Xml.Serialization.XmlSerializer(objeto.GetType()); using (StreamWriter SW = System.IO.File.CreateText(ArchivoTemp)) { Serializador.Serialize(SW, objeto); }

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• What framework is trac based on?

  - by user198729

  I just downloaded this tracking system and curious what framework this great system uses?

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• Getting Build Errors in Program to Change Button Name When Clicked

  - by Rishabh

  Imports System Imports System.Windows.Forms Class MyButtonClass Inherits Form Private mrButton As Button Public Sub MyButtonClass() mrButton = New Button() mrButton.Text = "Click me " mrButton.Click += New System.EventHandler(MyButtonClickEventHandler) Me.Controls.Add(mrButton) End Sub Shared Sub Main() Application.Run(New MyButtonClass()) End Sub Private Sub MyButtonClickEventHandler(ByVal sender As Object, ByVal e As EventArgs) mrButton.Text = "You clicked me!" End Sub End Class

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• How to restart Linux from inside a C++ program?

  - by Dave K

  I have a Qt 4 GUI where I need to have a option in a drop-down menu that allows the user to choose to restart the computer. I realize this might seem redunant with the ability to restart the computer in other ways, but the choice needs to stay there. I've tried using system() to call the following: a suid-root shell script a non-suid shell script a suid-root binary program and all of them just cause reboot: must be superuser to be printed. Using system() to call reboot directly does the same thing. I'm not especially attached to using system() to do this, but it seemed like the most direct choice. How can I reboot the system from the GUI?

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• Need help with some functions and variables

  - by Doug

  function createXMLHTTP() { xmlhttp = =new XMLHttpRequest(); return xmlhttp; } I'm trying to create 3 instances of this, but it all has the same variable name which is xmlhttp. How can I dynamically create different variable names? I'm not sure if that's the right way to ask the question. I want to create like xmlhttp1, xmlhttp2, xmlhttp3, so then I can reference each one.

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• [Ruby] Confirm existance of executable (script, bat, cmd, exe) via a ruby file.

  - by srcspider

  Using a ruby file (or any rake facility) I need to find out if the user who executes my script is able to execute certain shell commands. In particular g++ etc. Hopefully system independent so if there is some g++.bat, g++.exe or just g++ (etc) it should say yes nevertheless, as long as its on the path and executable on the users system. Example: if the user has a no-extention executable version of the file and a .cmd version of the file it should say "yes" for the no extension version on a linux system and "yes" to the .cmd version on a windows system. Since the users shell can only execute that version of the file. The purpose of this is to allow the script to be self-configuring (as much as possible). Any suggestions on how I might go about doing this?

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• PasswordFiled char[] to String in Java connection MySql?

  - by user1819551

  This is a jFrame to connect to the database and this is in the button connect. My issue is in the passwordField NetBeans make me do a char[], but my .getConnection not let me insert the char[] ERROR: "no suitable method found for getConnection(String,String,char[])". So I will change to String right? So when I change and run the jFrame said access denied. when I start doing the System.out.println(l) " Give me the right answer" Like this: "Alex". But when I do the System.out.println(password) "Give me the Array spaces and not the value" Like this: jdbc:mysql://localhost/home inventory root [C@5be5ab68 <--- Array space . What I doing wrong? try { Class.forName("org.gjt.mm.mysql.Driver"); //Load the driver String host = "jdbc:mysql://"+tServerHost.getText()+"/"+tSchema.getText(); String uName = tUsername.getText(); char[] l = pPassword.getPassword(); System.out.println(l); String password= l.toString(); System.out.println(host+uName+l); con = DriverManager.getConnection(host, uName, password); System.out.println(host+uName+password); } catch (SQLException | ClassNotFoundException ex) { JOptionPane.showMessageDialog(this, ex.getMessage()); } }

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• Does RazorEngine require MVC3 to be installed?

  - by tkha007

  I am working on a web project that uses MVC2. I decided to try out RazorEngine to do some e-mail templating. This appeared to work fine when I was protyping using an MVC2 project so I assumed that RazorEngine will work fine for my e-mail templating solution. What I had forgotten at the time was that I actually had MVC3 installed on my local development machine. After deploying the project on a pre-test server I get the following error in the logs when the application attempts to do anything with RazorEngine: Could not load file or assembly 'System.Web.Razor, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified. File name: 'System.Web.Razor, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' at RazorEngine.Compilation.DefaultCompilerServiceFactory.CreateCompilerService(Language language) at RazorEngine.Templating.TemplateService.CreateTemplateType(String razorTemplate, Type modelType) at RazorEngine.Templating.TemplateService.CreateTemplate[T](String razorTemplate, T model) at RazorEngine.Templating.TemplateService.Parse[T](String razorTemplate, T model) at RazorEngine.Razor.Parse[T](String razorTemplate, T model) at System.Dynamic.UpdateDelegates.UpdateAndExecute3[T0,T1,T2,TRet](CallSite site, T0 arg0, T1 arg1, T2 arg2) at Persistence.Utility.RazorEngineHelper.Parse(String templateName, Object model) in The fact that it can't find 'System.Web.Razor' means that this DLL does not exist on the deployed server. The only difference I can think of between the deployment server and my local dev machine is that the deployment server does not have MVC3 installed but I may be mistaken because the deployment server is not something I normally control and as such I don't have a lot of information about it. It is meant to host this particular application so there have been previous deployments of this application to this server. This is the first time I'm making a deployment with RazorEngine as a dependency.

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• Generic Dictionary - Getting Conversion Error

  - by pm_2

  The following code is giving me an error: // GetDirectoryList() returns Dictionary<string, DirectoryInfo> Dictionary<string, DirectoryInfo> myDirectoryList = GetDirectoryList(); // The following line gives a compile error foreach (Dictionary<string, DirectoryInfo> eachItem in myDirectoryList) The error it gives is as follows: Cannot convert type 'System.Collections.Generic.KeyValuePair<string,System.IO.DirectoryInfo>' to 'System.Collections.Generic.Dictionary<string,System.IO.DirectoryInfo>’ My question is: why is it trying to perform this conversion? Can I not use a foreach loop on this type of object?

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• Casting error in my form

  - by Siva

  I have a ComboBox in a DataGridView. However I get an error when I run it: Unable to cast object of type 'System.Windows.Forms.DataGridView' to type 'System.Windows.Forms.ComboBox'. What can I do to resolve this error? ComboBox comboBox; private void dataGridView1_EditingControlShowing(object sender, DataGridViewEditingControlShowingEventArgs e) { if (e.Control is ComboBox) { comboBox = e.Control as ComboBox; if (dataGridView1.CurrentCell.ColumnIndex >= 0) { System.Diagnostics.Debug.WriteLine("Edit Control Showing"); comboBox.SelectedIndexChanged -= new EventHandler(comboBoxItems_SelectedIndexChanged); comboBox.SelectedIndexChanged += new EventHandler(comboBoxItems_SelectedIndexChanged); } } } void comboBoxItems_SelectedIndexChanged(object sender, EventArgs e) { try { int comboBoxSelectedIndex = ((ComboBox)sender).SelectedIndex; string comboboxSelectedValue = ((ComboBox)sender).SelectedText; int gridViewSelectedRow = dataGridView1.CurrentRow.Index; if (comboBoxSelectedIndex >= 0 && gridViewSelectedRow >= 0) { System.Diagnostics.Debug.WriteLine("ComboBox Index - " + comboBoxSelectedIndex); System.Diagnostics.Debug.WriteLine("GridView Index - " + gridViewSelectedRow); if (comboBox != null) { comboBox.SelectedIndexChanged -= new EventHandler(comboBoxItems_SelectedIndexChanged); } } } catch(Exception E) { } }

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• Will Sytem.currentTimeMillis always return a value >= previous calls?

  - by 1984isnotamanual

  http://java.sun.com/j2se/1.4.2/docs/api/java/lang/System.html#currentTimeMillis() says: Returns the current time in milliseconds. Note that while the unit of time of the return value is a millisecond, the granularity of the value depends on the underlying operating system and may be larger. For example, many operating systems measure time in units of tens of milliseconds. It is not clear to me if I am guaranteed that this code will always print ever increasing (or the same) numbers. while (1) { System.out.println(System.currentTimeMillis() ); }

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• Scanner class is skipping lines

  - by user2403304

  I'm new to programing and I'm having a problem with my scanner class. This code is in a loop and when the loop comes around the second, third whatever time I have it set to it skips the first title input. I need help please why is it skipping my title scanner input in the beginning? System.out.println("Title:"); list[i].title=keyboard.nextLine(); System.out.println("Author:"); list[i].author=keyboard.nextLine(); System.out.println("Album:"); list[i].album=keyboard.nextLine(); System.out.println("Filename:"); list[i].filename=keyboard.nextLine();

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• question on revrse array

  - by davit-datuashvili

  we know algorithm how reverse array of n integers for (int i=0;i<n/2;i++){ swap(a[i],a[n-1-i]): } is this method better according the speed of algorithm or not because swap using xor is more fast then in other method here is code public class swap{ public static void main(String[]args){ int a[]=new int[]{2,4,5,7,8,11,13,12,14,24}; System.out.println(" array at the begining:"); for (int i=0;i<a.length;i++){ System.out.println(a[i]); } for (int j=0;j<a.length/2;j++){ a[j]^=a[a.length-1-j]; a[a.length-1-j]^=a[j]; a[j]^=a[a.length-1-j]; } System.out.println("reversed array:"); for (int j=0;j<a.length;j++){ System.out.println(a[j]); } } } //result array at the begining: 2 4 5 7 8 11 13 12 14 24 reversed array: 24 14 12 13 11 8 7 5 4 2

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• Where to put the star in C and C++ pointer notation

  - by Martin Kristiansen

  For some time the following has been annoing me, where should I put the star in my pointer notation. int *var; // 1 and int* var; // 2 obviously do the same thing, and both notations are correct, but I find that most literature and code I look at use the 1th notation. wouldn't it be more 'correct' to use the 2th notation, separating the type and the variable name by a whitespace, rather than mixing the type and variable tokens?

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• What to prefer in the following case?

  - by GK

  say suppose I have class as : public class Age { private int age; public int getAge() { return this.age; } } In my Main class I am calling the getAge() method many times. So I wanted to know is it advisable to call so many times or call once and assign it to some variable and use that variable. Which is best and why?

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• Why won't my PHP script work?

  - by sadicool

  I have a script that reports the following error: Warning: mysql_connect() [function.mysql-connect]: Access denied for user 'admin'@'localhost' (using password: YES) in C:\wamp\www\bits\includes\connect.inc.php on line 10 Notice: Undefined variable: l_error in C:\wamp\www\bits\includes\connect.inc.php on line 12 Notice: Undefined variable: l_cannotconnecttodatabase in C:\wamp\www\bits\includes\connect.inc.php on line 12 Why would this be?

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• About Sdram software :Self-refresh mode

  - by student_pdas

  For power management we have to put system in deep sleep(system sleep) mode and for this we have to put SDRAM in self refresh mode. Can anyone tell the steps to set SDARM in self refresh mode. I tried SDRAM configuration register's ,I found that the SDRAM do goes to self-refresh mode[we probed the SD clk out] however system crashes in some scenarios while coming out of sleep.

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• Why each request with activerecord is doing SHOW TABLE?

  - by dynback.com

  My test page is processed if believe to trace in 46 ms, while 11 of them I am doing this 20:53:06.111597 system.db.CDbConnection Opening DB connection 20:53:06.118046 system.db.CDbCommand Querying SQL: SHOW COLUMNS FROM `questions` 20:53:06.122476 system.db.CDbCommand Querying SQL: SHOW CREATE TABLE `questions` Is this obligatory?

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• Wherewith replace Dictionary.Where(p => p.Key is T)

  - by abatishchev

  I have a System.Collections.Generic.Dictionary<System.Web.UI.Control, object> where all keys can be either type of System.Web.UI.WebControls.HyperLink or type of System.Web.UI.WebControls.Label. I want to change Text property of each control. Because HyperLink doesn't implement (why??) ITextControl, I need to cast Label or HyperLink explicitly: Dictionary<Control,object> dic = .. dic .Where(p => p.Key is HyperLink) .ForEach(c => ((HyperLink)c).Text = "something") dic .Where(p => p.Key is Label) .ForEach(c => ((Label)c).Text = "something") Are there ways to workaround such approach?

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• Assembly language variables

  - by Phenom

  What is the assembly language variable bl? How many bits does it hold? Is it a part of a larger variable like EBX?

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• Conversion of Single to two UInt16 values in .net

  - by Gio

  In the good old days of C. I could cast a float to an int (assuming 32 bit system), do some bit manipluation ( bitwise and, right shift, ect ), and get the upper and lower 16 bit hex representations of the floating point number, which I could then store in two short values. I'm not seeing an easy way of doing this in C#. System.Convert.ToUInt16 just does a float to int convert (even after I shift right), which leaves a vlaue of 0 if the float is less than 0, which is not the desired effect. //useless leaves me witg a value 0f 0 UIN16 s1 = (UInt16)((System.Convert.ToUInt32(d2) & 0xffff0000) >> 16); //capture the high word UInt16 s2 = (UInt16)(System.Convert.ToUInt32(d2) & 0xffff); //capture the low word A basic cast (UInt32) doesn't work either.

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• Find Field In Access Table

  - by user3535895

  I need to connect to a local table in Access and find a an entry in the name field then find the id of that name. I know how to connect to access and create the connection there, but actually manipulating the table I am lost. I can use this to connect to access, but how would I access the table and find the field I am looking for? The data structure of the table I want to connect to is: name text, address text, id autonumber. System.Collections.ArrayList outside = new System.Collections.ArrayList(); System.Data.OleDb.OleDbConnection olecon = new System.Data.OleDb.OleDbConnection"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + path); olecon.Open();

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• What's the output of the following code after removing errors?

  - by asdf

  Class A { public A() { system.out.println("con call"); } static { system.out.println("static call"); } { system.out.println("ins call"); } public static void main(string[] args) { new A(); new A(); } }

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