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C# 5.0

C#5.0

Great Reads

Loading Related Entities with Entity Framework - A Beginner's Primer

by David Rogers Dev

Learn how to load related entities using the Entity Framework with simple examples

Object Tracking: Particle Filter with Ease

by Darko Jurić

SIR Particle Filter brief tutorial with samples in C#

Generating RDLC Dynamically for the Report Viewer Local Report

by tetsushmz

This article explains how to dynamically create RDLC.

Introducing Calcium for Xamarin.Forms

by Daniel Vaughan

Create best-in-breed cross-platform MVVM apps using Calcium for Xamarin.Forms.

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Azure IoT Hub Tester

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Design and implementation of small tool, tester for exploring Azure IoT Hub with virtual MQTT device

Duplicate songs detector via audio fingerprinting

by Ciumac Sergiu

Explains sound fingerprinting algorithm, with a practical example of detecting duplicate files on the user's local drive.

Using Reflections in C#

by Mansur Kurtov

This article shows how to use reflections in C#.

Automatic Table Generation in any Database by NHibernate ORM and CodeDom for Code Generation

by Mahsa Hassankashi

This article enables you to generate table in any database such as Oracle, SQLServer, MySQL, SQLite, Sybase, etc. just by typing table name and its fields. Then you can use NHibernate facilities to make query for data layer.

All Articles

C# 5.0

implement custom hashtable

29 Dec 2010 by #realJSOP

A HashTable collection already prevents you from adding duplicate entries. What do you actually want to do?EDIT =============="Custom" in what way? Extra functionality? If so, just write derive a new class from HashTable, and add tyhe functionality you want. You could also just write...

Using controls in Main.cs

20 Mar 2011 by #realJSOP

What you should do is create a set of custom events that the form can subscribe to, make the other classes post events, and then the form can subscribe to them. That way, your classes don't need to know anything about the UI component that uses them. All it has to do is post events, and if...

please resizing image code

10 Oct 2011 by #realJSOP

Create a user control that loads the images and displays them. Then you can just give the control a directory name that contains the files, and let it do the work for you behind the scense, thus uncluttering your form code.public class MyControl : Control{ private List images = new...

Get Certificates from the System Store

15 Oct 2014 by #realJSOP

Retrieve certificates from the system certificate store

Determine Fiscal Date

27 Oct 2014 by #realJSOP

Extension method to determine fiscal date

How to add summaries to a class file using external document

17 Oct 2016 by #realJSOP

The only real way to add XML comments to your code is to do it manually. There is a helper extension available for Visual Studio, called GhostDoc. It helps ease the pain a little.Of course, you could write an application to do it for you, but it would take a lot less time manually commenting...

C# program runs slowly on multiple instances

11 Jan 2017 by #realJSOP

I tried it mostly your way and it took 39 seconds. Granted, I don't know the contents of your Stopwatch class, but all mine does is return a TimeSpan when I call my ElapsedTime method. I'm also making only one call to Console.Writeline with a string.Concatendated value. public class...

C# program runs slowly on multiple instances

11 Jan 2017 by #realJSOP

Out of curiosity, I tried a multi-threaded approach running a single app. This too 47 seconds.static void Main(string[] args){ string str = Console.ReadLine(); if (str == "start") { StopWatch sw = new StopWatch(); sw.Start(); ...

C# program runs slowly on multiple instances

11 Jan 2017 by #realJSOP

And finally, I wondered if sharing the same stopwatch might be causing some sort of self-induced delays, so I did this, which resulted in about 49 seconds of elapsed timed.static void Main(string[] args){ string str = Console.ReadLine(); if (str == "start") { ...

C# program runs slowly on multiple instances

11 Jan 2017 by #realJSOP

My final solution - execution time is 0.002 seconds (I would call that "negligible" as far as elapsed time is concerned):static void Main(string[] args){ string str = Console.ReadLine().ToLower(); if (str.Contains("start")) { StopWatch sw = new StopWatch(); ...

Data table taking too much time to load 50000 records.suggest its solution.

9 Jul 2018 by #realJSOP

Try it this way: SqlConnection conn = null; SqlCommand cmd = null; SqlDataAdapter adapter = null; DataSet dataset = null; DataTable dataTable = null; try { using (conn = new SqlConnection("connection string")) { conn.Open(); using (cmd =...

How do I load a DLL into a custom created app domain

10 Jun 2019 by #realJSOP

It sounds like you're tryitg to perform "live" updates without having to stop the service and restart. 0) One alternative is to have the service monitor the install folder for changes to referenced DLLs, and have it restart itself when it detects a change.This would eliminate the need to load...

Treeview node showing null while its already fill

30 Aug 2015 by $ultaNn

I have a tree view which i am populating from active directory i am trying to implement search in tree view , its returning null while its already fill with Active directory data TreeNode node = TreeView1.FindNode("Txt.Text");

I have to display pdf in ifram using response.outputstream.write(bytes, 0, filesize);

7 Mar 2017 by $ultaNn

I can get pdf to browser , i want it in iframe with out using generic handler byte[] bytes = (byte[])GetData("SELECT * FROM [CME_Attachment] where ID = '" + ActID + "'").Rows[0]["Attachment"]; string name = name.pdf; int FileSize =...

After removing update panel from ASP page I am getting this error "cannot unregister updatepanel with ID "

20 Sep 2017 by $ultaNn

I am getting this error after i remove update panel from the page . Cannot unregister UpdatePanel with ID 'UpdatePanel1' since it was not registered with the ScriptManager. This might occur if the UpdatePanel was removed from the control tree and later added again, which is not supported....

Error while using nextresult fuction with datareader

12 Aug 2018 by $ultaNn

Error while using NextResult fuction with datareader cannot get second table result and error on second NextResult line " invalid attempt to call nextresult when reader is closed " using (SqlConnection myCon = DBCon) { try { string Qry = @"SELECT...

Validation of viewstate MAC failed.

14 Aug 2014 by -Dr_X-

Set the ValidateViewState="false" within the header of the .aspx page.

How Can I Update Gridview Data .Pleade Tell Me By Editing My Code.

17 Mar 2015 by .net bigner

using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.UI;using System.Web.UI.WebControls;using System.Data;using System.Data.SqlClient;using System.Drawing;namespace logindemo{ public partial class Welcometo :...

exception of type 'System.NullReferenceException' occurred in logindemo.dll but was not handled in user code

18 Mar 2015 by .net bigner

An exception of type 'System.NullReferenceException' occurred in logindemo.dll but was not handled in user codeAdditional information: Object reference not set to an instance of an object

How Can I Show My Address Of Data Table In Textbox.

18 May 2015 by .net bigner

namespace tableshow.Controllers{ public class TableShowController : Controller { private TableShowEntities db = new TableShowEntities(); public ActionResult show() { ViewBag.TableShowsData = db.TableShows.ToList(); return...

Cant bind object with null reference

14 Nov 2014 by .Net Jim

Check this out...Faster MS Excel Reading using Office Interop Assemblies[^]

How to import xml data into excel using asp net c#

10 Jan 2015 by .Net Jim

There are a variety of ways to do this. That said there are a few key questions to shape your choices. First, can your users learn to import the xml into Excel? Excel has been able to import xml for over a decade. The key to doing this successfully is to avoid attributes in xml. Just name...

Configure Entity Data Source Shows an Error Entity Framework 6.1.3

27 Sep 2016 by .Net Jim

Entity Framework 6 no longer supports wizard items. You are expected to use NuGet instead, then work entirely manually. Bottom line...used entity framework without the data source. Do in page load or other page event and bind to collection coming back or load collection into Datatable or...

Extract parent element from XML document

24 Oct 2020 by .Net Perfect Dev

Hello, I have an xml document

i want to know how can change the value of label on a web page during various postback

14 Sep 2014 by /\jmot

Try to UseSession/ Cookies.

When I Click Back Button After Logout ,Privius Page Show..

18 Sep 2014 by /\jmot

try thispage_load(){ if(Session["userLogged"]=="") // check for the session { response.redirect("loginpage") }}

Html Select As A dropdownlist Codebehind

18 Sep 2014 by /\jmot

i used the html select.. trying to get it as dropdown list like this.. DropDownList ddlSerialNo =...

How to set only one event for all radio buttons in a group box for windows applications in c#

25 Nov 2014 by /\jmot

another way...radioButton1.CheckedChanged += new EventHandler(radioButtons_CheckedChanged);radioButton2.CheckedChanged += new EventHandler(radioButtons_CheckedChanged);....private void radioButtons_CheckedChanged (object sender, EventArgs e){ RadioButton radioButton =...

Best way to Save Listview Items in Database

26 Nov 2014 by /\jmot

Another way..foreach (ListViewItem item in listView1.Items){ String abc = Convert.ToString(item.SubItems[1].Text);//etc etc }

SQL-Server-2014

customize date format in c#

27 Nov 2014 by /\jmot

Your code'll not display any error but the Problem is YYYY and SS is not the valid Date time Formatting string so it'll not give you the actual result.you have to use yyyy instead of YYYY and ss instead of SS.See here http://msdn.microsoft.com/en-us/library/8kb3ddd4(v=vs.110).aspx[^]

sum of time in sql server 2008 r2

1 Dec 2014 by /\jmot

try these..SELECT Sum(DateDiff(minute, 0, Opt)) As [TotalMinutes], Convert(varchar(5), Sum(DateDiff(minute, 0, Opt)+1) / 60) + ' hours ' + Convert(char(2), Sum(DateDiff(minute, 0, Opt)+1) % 60) + ' minutes' As [Description]FROM ...

SQL-Server-2008R2

How to encrypt data in .net apps and decrypt it in sql server using AES

5 Dec 2014 by /\jmot

Search here..https://www.google.co.in/search?q=encryption+in+asp.net+c%23+using+aes&oq=encryption+in+asp.net+c%23+using+aes&gs_l=serp.3...264136.271321.0.277209.15.14.0.0.0.1.210.1527.0j8j2.10.0.msedr...0...1c.1.58.serp..8.7.1055.MbQ1xtgujJU[^]See...

how to validate filename and textbox in asp.net using c#

5 Dec 2014 by /\jmot

string path = "C:\\stagelist.txt"; string extension = Path.GetExtension(path); string filename = Path.GetFileName(path); string filenameNoExtension = Path.GetFileNameWithoutExtension(path); string root =...

Convert Number to String Without Button

8 Dec 2014 by /\jmot

use..SpellNumber.dll to convert amount in Works..See here..Convert Amount in Words and Separate Amount with comma in Bangladeshi Currency Format using C#.NET[^]

SQL-Server-2008R2

What's the difference between String and string?

9 Dec 2014 by /\jmot

See for more Explanation..http://stackoverflow.com/questions/7074/whats-the-difference-between-string-and-string[^]

Check if a date range has a weekend

14 Dec 2014 by /\jmot

See..http://www.codersrevolution.com/blog/SQL-Server-How-Many-WorkWeek-Days-In-Date-Range[^]

how to design a login page using ext js

16 Dec 2014 by /\jmot

See..http://docs.sencha.com/extjs/5.1/components/forms.html[^]https://www.packtpub.com/books/content/login-page-using-ext-js[^]

Help with calculating then displaying a percentage

16 Dec 2014 by /\jmot

its for the..RemainingLabel.Text = remainXp.ToString("N");PercentageLabel.Text = percentage.ToString("p");See this..You'll understand.http://msdn.microsoft.com/en-us/library/dwhawy9k(v=vs.110).aspx[^]

about Asp.net project

23 Dec 2014 by /\jmot

what about this..https://www.google.co.in/search?biw=1366&bih=667&q=sample+asp.net+project+with+source+code&oq=sample+asp.net+project+with+source+code&gs_l=serp.12...0.0.0.3668.0.0.0.0.0.0.0.0..0.0.msedr...0...1c..60.serp..0.0.0.n2LReAT8p7g[^]

"Load report failed." in crystal report.

2 Feb 2015 by /\jmot

You will need to modify two properties in the .rpt files:Build Action is set to "Embedded Resource" by default. Change it to "Content".Copy to Output is set to "Do not copy" by default. Change it to "Copy always".Rebuild, Build deployment package and Publish....

Example for update delete record in WPF C# using data grid control update delete buttons in separate panel

2 Feb 2015 by /\jmot

Ref.http://www.dotnetwindow.com/2014/04/WPF-Insert-Update-Delete-Operation-on-Datagrid.html[^]http://www.dotnetcurry.com/showarticle.aspx?ID=566[^]http://www.dotnetcurry.com/showarticle.aspx?ID=563[^]https://gsselle.wordpress.com/2013/05/26/wpf-datagrid-update-insert-and-delete-operations...

The connection was not closed. The connection's current state is open.

4 Feb 2015 by /\jmot

if (mySQLConnection.State != ConnectionState.Open){ mySQLConnection.Close(); mySQLConnection.Open();}see the...

Want to delete the previous file automatically when new file is uploaded

7 Feb 2015 by /\jmot

use..string rootFolderPath = @"C:\\SomeFolder\\AnotherFolder\\FolderCOntainingThingsToDelete";string filesToDelete = @"*DeleteMe*.doc"; // Only delete DOC files containing "DeleteMe" in their filenamesstring[] fileList = System.IO.Directory.GetFiles(rootFolderPath,...

How to get lastindexof string only text

9 Feb 2015 by /\jmot

use DirectoryInfo.Name Property.string str = @"\sub1\sub2\sub3";string dirName = new DirectoryInfo(str).Name;ref.https://msdn.microsoft.com/en-us/library/system.io.directoryinfo.name.aspx[^]http://stackoverflow.com/questions/5229292/get-folder-name-from-full-file-path-c-asp-net[^]

show checkbox checked from db values in mvc

10 Feb 2015 by /\jmot

public class CheckBoxItem{ public string Code { get; set; } public bool IsChecked { get; set; } public string Label {get;set;}}razor: @Html.HiddenFor(x => x.Code) @Html.CheckBoxFor(x => x.IsChecked)@Html.LabelFor(x => x.IsChecked,...

value based sorting in SQL

10 Feb 2015 by /\jmot

Try..SELECT *FROM MDT_Organisation_MasterORDER BY CAse When Organisation_ShortCode = 'Mewaholeo' THEN '1'Else Organisation_ShortCode ascref here.http://sqlandme.com/2013/11/18/sql-server-custom-sorting-in-order-by-clause/[^]

SQL-Server-2008R2

Use “ NOT IN” Linq ?

12 Mar 2015 by /\jmot

Use CONTAINS()e.g..SqlQry= Select * from table_name where column_Name not in(val1,val2,val3,..)List liS=new List;liS.add(val1);liS.add(val2);...LinqQuery:from o in context.table_name where !liS.Contains(column_Name) select o;

maintain a global uniqe id

13 Mar 2015 by /\jmot

you acn use another table to hold on the globel id.table_globel_id@id as bigintwhenever inserting to any table use ID from this tablelike: select isnull(id,0) from table_globel_idand whenever complitiong the sql query/transaction increase the value of the id in...

To retrieve each row from dataset and write each row to a separate text file

28 Apr 2015 by 01sathish

Hi,I'm calling a Stored Procedure say 'GetUserDetails' which retrieves say 3 rows with 3 columns [3X3] with SqlCommand and this is stored in to a DataSet.Now I wanted to loop through each row from the DataSet and write each row to a separate text file, I mean the final outcome should...

How Do I Make Screen As Full Screen In Asp.Net Application.?

3 Nov 2015 by 12045649

Hello Every One..I want to write f11 button functionality in my asp button ...Can u please help me in that.

How to display toolbar at bottom in HtmlEditorExtender ajax control.?

16 Nov 2015 by 12045649

Hello friends, i am using HtmlEditorExtender ajax control .Here the problem i want toolbar at the bottom of the text box..Could it can be done..?

How to get bitmap variable from event befor executing method AcceptTcpClientAsync

22 Apr 2014 by 123456789igor

Hello, I'm use AForge framework and i get image capture from webcam, then i want to send this image from server to client. But the problem consists of that i get the bitmap variable, which gets in event, after executing method AcceptTcpClientAsync and bitmap variable is null. How to get image...

sockets client+server with await/async c# 5.0

30 Apr 2014 by 123456789igor

Hello, i try to write a simple asynchronous client/server apps. I know how do it using callback, but i want to invistigate how write client+server using await/async and c# 5.0. Please, help me. It should be simple. Only connect and transfer some bytes.I know that this can be done using...

sockets client+server with await/async c# 5.0

1 May 2014 by 123456789igor

Connect success. But how to send bytes, i don't knowprivate readonly Socket _server; public ServerSocket(IPAddress ipAddress, int port) { _server = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); _server.Bind(new...

sockets client+server with await/async c# 5.0

1 May 2014 by 123456789igor

now server can send to client array of byte. But client recieved only 1 iteration. How i can do, that if client connected then it always recieve information from server?Server:public ServerSocket(IPAddress ipAddress, int port) { _server = new...

peer to peer video receiver. how to start?

14 Jan 2015 by 123456789igor

Hello, I've finished with client-server video streaming. And now I want to do this using peer to peer. Please advise how to start. I've found and read only theory. But I want to find any finished project with p2p. Maybe someone can give some links on finished project?

do while loop will support in dot net or not

21 Sep 2014 by 123456789shaik

Sir/Madam,Please tell me "DO While loop" will support in dotnet or not either i c# or asp.netPlease tell me the answerI got this question in written test

how to upload image in database for windows application

23 Nov 2014 by 123456789shaik

I have two file upload controls in Windows application How can I save it to database one control for >>Image2 Control for >>> Idproof Imageplease help me any body...

data in datagridiew with different name search in winforms

26 Nov 2014 by 123456789shaik

hii need to search data in datagrid view with different fields i am geting error for that syntax error at keyword WHEREbut it is executing for single field but i need two more field to search with one textboxplease help me...my code is hereprivate void button1_Click(object...

Creating a simple Project In MVC for a beginner

26 Jul 2014 by 1Future

Hello All, To begin with, I am an intermediate C# Developer (Windows Forms). I am well aware of this site and I am a regular user and when ever I ask a question I usually do show my working or code.Now, I have have just been introduced to MVC and C#.Net in which I am completely a...

Stuck on how to utilise a database object in the View in MVC.net help

2 Jun 2015 by 1Future

Hi All,so , I have a method in my controller like so:[HttpPost]public ActionResult Mycontroller(string RefNumber){ CustomerEntities custObj = new CustomerEntities(); var customer = from m in custObj.CustomerTbl select m; if (!string.IsNullOrEmpty(RefNumber)){ ...

Partial view not executing action method

11 Oct 2017 by 1Future

Hi, I have a partial view with another partial view. When i try to post the data from the partial view to Action method nothing happens.Even when i put a break point in the action method nothing happens .. it doesn't hit the break point. is there anything i'm doing wrong below? or could someone...

How Do I Change Procedure

31 Oct 2014 by 2011999

There was a mismatch between the processor architecture of the project being built "MSIL" and the processor architecture of the reference "xyz.Doman", "x86". This mismatch may cause runtime failures. Please consider changing the targeted processor architecture of your project through the...

How Do I Rectify This Error

31 Oct 2014 by 2011999

The type arguments for method 'System.Web.Mvc.Html.InputExtensions.TextBoxFor(System.Web.Mvc.HtmlHelper, System.Linq.Expressions.Expression>)' cannot be inferred from the usage. Try specifying the type arguments explicitly.

what is preferred Book for J query and mvc ?

25 Apr 2015 by 23741

You can't go wrong with: Programming Microsoft ASP.NET MVC (3rd Edition) (Developer Reference) Paperback – February 25, 2014by Dino Esposito...

How to retrieve back the saved file name(without guid) from physical location

14 Oct 2015 by 23741

To make things more efficient, you might reconsider saving the file name as follows:string fileName = Guid.NewGuid().ToString() + "-" + Path.GetFileName(PostedFile.FileName);That way, to determine the original uploaded file name later, all you need is the substring starting at the end of...

How to get internet speed in C#?

10 Dec 2014 by 24983

Hi, How to get Internet speed in c#.Net?Please le ne know if anybody knows. Thanks in advance...

How to get system idle time duration in c#?

17 Dec 2014 by 24983

Hi, How to get system idle duration in c#?

How to get the system Idle time using C#.net windows app?

8 Jan 2015 by 24983

Hi, I want to get the System Idle Time in c#.net? After system goes to Idle mode without use mouse or keys then I want to get the IdleDuration, LastInputTime and CurrentInputTime both of these fields are insert every 5 mins in Sqlserver table.Please help me,Thanks in Advance

How to get running active applications and working hours per application?

20 Jan 2015 by 24983

Hi Now I get the list of running applications using c# windows App. How to get worked Hours for application using c#.net? For Example I have worked 8 hours a day then 4hours for Visual studio and 4 hours for Excelsheet. I want to get these information in C#.net windows...

C# Applciation blocked by Antivirus?

12 Feb 2015 by 24983

Hi, I have developed C# windows applcation tried to run exe in Laptop then its blocked by Antivirus software. I want to run the applciation as a background and its for monitor.How to solve this issues?Thanks in advance

How to resolve Sqlite.interop.dll from c#.net?

12 Feb 2015 by 24983

Hi, Actually I am trying to get History from Firefox using C#. then I added dll as reference in my projects. THen I get the error "Unable to load DLL 'SQLite.Interop.dll': The specified module could not be found. (Exception from HRESULT: 0x8007007E)"below my...

How to create xamarin Visual Studio C# for Android?

22 Feb 2015 by 24983

Hi, I am biginner to learn xamarin? How to create Xamarin Visual Studio C#?Please if you have any materials or videos please send me.

How to generate click event of runtime created button in c#?

9 Oct 2014 by 2irfanshaikh

Please check the below code.. for you reference....Button cmd = new Button("Click");cmd.Click += new EventHandler(button1_Click);....private void button1_Click(object sender, System.EventArgs e){Message.Show("Hi");}Please refer below...

Windows-Phone-8

If Any Body Use Captcha Image In .Net Frame Work Using 4.0 Version Then I Ask Him/Her Plz Send M Code. I Explore It But :( Code Not Run. Use Much .Dll Libraries, Class And Much More But Now Tired....

9 Oct 2014 by 2irfanshaikh

use reCaptcha this is very good and easy to implement. also sample code is providedhttps://developers.google.com/recaptcha/docs/aspnet[^]It will work and only with local host and live registered domain which are exposed on internet

Pull from sql / Using as string

18 Apr 2015 by 2toetommy

I have a local sql DB. I am trying to pull form table HomePage and return and use as a string. This is for a simple webBrowser as a learning project. I think I am close but just not sure.This snippet is the Home button_click event. private void button5_Click(object sender, EventArgs...

Pull from sql / Using as string

18 Apr 2015 by 2toetommy

Thank you for clearing a lot of that up. Makes much more sense that way. I tryed this that way and I get this. http://pastebin.com/ysdKCTtg[^]Here is what I changed my code to (same as yours i believe)Quote: private void...

How to use validators to display multiple Errors

29 Jun 2015 by 3DC#

Hey there, long time since i asked a question. I want to display all validation-errors and disable two buttons addicted from the validation-error.Background: I have a table where the user can add and delete rows. The primerykey (Number)shall be validated and if there is an error the...

how do this dataGridView1.Rows.Clear(); with backgroundWorker

15 Aug 2014 by 4L4K1

when I want to show a dataGridView with backgroundWorker I call showDGV("mydataGridViewname") in bw_dowork function . delegate void Dstr(string s); public void showDGV(string s) { if (Controls[s].InvokeRequired) { Dstr h = new...

BackgroundWorker

delay problem in playing a part of video with mplayer

17 Aug 2014 by 4L4K1

I learned how to use mplayer in C# by this article : Simple Mplayer Front End in C#when I use -ss 25 -endpos 10 mplayer should displays ten second from second 25 until the second 35but it just displays 5 last seconds( it displays from 30 until 35)i think because of the video is large...

get all files name and their path from a directory and its subdirectory

20 Aug 2014 by 4L4K1

I use this code to get all files name in a folder. rootFolder="D:\\rootFolder\\";var videofilenames = Directory .GetFiles(rootFolder, "*.*", SearchOption.AllDirectories) .Select(s => Path.GetFileName(s)) .Where(s =>s.EndsWith(".mp4") ||...

get all files name and their path from a directory and its subdirectory

20 Aug 2014 by 4L4K1

rootFolder="D:\\rootFolder\\...

How do I play subtitle with mplayer2.exe in the slave mode?

26 Aug 2014 by 4L4K1

I used mplayer2.exe to play video in C# winform app.How do I play subtitle with mplayer2.exe in the slave mode?

prevent your program to become cracked ! what files should become obfuscated ?

7 Nov 2014 by 4L4K1

prevent your program to become cracked ! what files should become obfuscated ?thank you in advance.

backup and restore some records of a table in sql database by C#

11 Nov 2014 by 4L4K1

how to backup and restor some records of a table in sql database by C#?(some records) I mean to select some record and make a backup file of that records.then restor that records .in restoring i preffer to click on file and automatically records backs up to the table of database.thank...

backup and restor a table in sql database by C#

11 Nov 2014 by 4L4K1

how to backup and restor a table in sql database by C#?

error in openning sql database connection

15 Nov 2014 by 4L4K1

i have two sql databases that are created in a same way and they are in the same path.i can open one but in opening another one i got this error:An attempt to attach an auto-named database for file xxx.mdf failed. A database with the same name exists, or specified file cannot be opened, or...

error in openning sql database connection

15 Nov 2014 by 4L4K1

the problem was this :mdf file was not included in project.(i fond it in Solution Explorer windows)i used relative path (AttachDbFilename=|DataDirectory|...)in connection string and it makes problem.

clone a sql database (without data) by C# programmatically

21 Nov 2014 by 4L4K1

How to clone a sql database (without data) by C# programmatically?

force to delete a file that is in use

25 Nov 2014 by 4L4K1

there is a C# formapp .it creates and uses and delete files.in deleting files i do not know which object or process is using them to dispose them .forcing garbage collection doesn't help too.what would you do if you had this problem?thank you in advance.

c# passing list element by ref

28 Nov 2014 by 4L4K1

how to pass a list element by ref ? private void Form1_Load(object sender, EventArgs e) { List mylist = new List(); mylist.Add("hi how are you?"); sara(ref mylist[0]);//there is errore } public void sara(ref...

using mplayer in C# form application

12 Dec 2014 by 4L4K1

i know how to play video by mplayer in C# formapp and i want to know ...how to make it fullscreen?how to display subtitle for any language?

drag a file from windows explorer to C# form and read its path

13 Dec 2014 by 4L4K1

how to drag a file from windows explorer to C# form and read its path?i used this code but events do not arised! private void Form1_Load(object sender, EventArgs e) { this.AllowDrop = true; this.DragEnter +=new DragEventHandler (Form1_DragEnter);...

set my program icon on .bak files that is created by it.

14 Dec 2014 by 4L4K1

I want 1).bak files that is created by my program have the icon of it.2)by clicking on .bak files restore begins.

drag and drop a file from windows explorer to a panel and read its path (windows 8,c# formapp)

24 Mar 2015 by 4L4K1

how do I drag and drop a file from windows explorer to a panel and read its path?according to this article I did what it said.but no event(Form1_DragDrop and Form1_DragEnter) fire.

How do I send data from formapp to an asp.net page and receive its respond

5 Jul 2015 by 4L4K1

I can send and receive data between two formapp.using System;using System.Net.Sockets;using System.Text;using System.Windows.Forms;namespace Client{ public partial class Form1 : Form { public Form1() { InitializeComponent(); ...

how many ways we can do the asschronus calls in .net

1 Nov 2014 by 9000605667

how many ways we can do the asschronus calls in .net

how to restrict the access of members of a base class to different child classes in c#

2 Apr 2015 by 9000605667

I have a class A with 3 methods M1,M2,M3.Class B is inherited from Class A & Class C is inherited from Class B.Now all the methods in Class A are accessible for Class B & Class C.Now i want to restrict 1)M1 & M2 of Class A for Class B2)M3 for Class C .How can i do this.

self referencing loop detected with type

6 Jul 2015 by 9000605667

this solution will use full when my front end is in MVC. But my Front end is Angular JS. So it will not resolve the issue. But i fix this issue by changing the access specifiers of Trip in Layover class from public to private.Thanks for your solution..

entity-framework

How to store session in SQL server

9 Feb 2015 by @shok kumar mishra

I want to store logedin session state in SQL Server and check whether he session is active or not.Please help me to find the solutions.Thanks in Advance